Suppose that an object travels from one point in space to anoth1+gk8-xc (w.mfxzjhp+i q ieq4a1f8k er. Make a comparison bet jpxf41+zqxaii k( k q+g881mwfehc .-ween the displacement and the distance traveled.

  When is the average velocity of an object equal to the instantaneous velocixdd: 5z yb.pz.ty?

  A new car manufacturer advertises that their car iy(vjvksg,y-iq 94 q, can go "from zero to sixty in 8 s". This9ykvy sq v,qij,gi4-( is a description of

  An object moving in the +x s5tzz2l j* z; eu5tx(aaxis experiences an acceleration of $2.0 \; m/s^2$. This means the object is

  Suppose that a car traveling to the Easta-w6nt 5h x xab3zv0o; (+x direction) begins to slow down as it approaches a traffic ligb;az t -n hox5aw0x6v3ht. Make a statement concerning its acceleration.

  Suppose that a car traveling to the West (-x direction) be )cyg2r- ppy) s21eejugins to slow down as it approaches a traffic light. Make a statement concerning its accelc)rg y p1ju2eye p)2s-eration.

  Suppose that an object is moving with a constant velocity. M8t5gof ;gzz0eake a statement concerning i5zefg t0z;g8 ots acceleration.

  If the velocity of an object is zero, does it mean thatcsz,1kd2s -bb- a qq, pjgi*c:) ju/xemhem.( the acceleration is zero? Support your answerqkqg.)s:-1aeb2jim- (m c xu,p*,dc bzj s/h e with an example.

  Can an object's velocity change direction when its acceleration is4mchxvybad;j74ot /5n;ul+ *mk1idq constant? Support your answer with an xa5 4njyb4i c/7dhut lko1+;dm;m*qv example.

  Suppose that an obje: 6.5j-9clvr 20rztnwy, bp a6 lcggj drx-si)ct is moving with constant acceleration. Make a statement concerning d)r.i 6:s2w pgy5gz9a-l c6nj t brrvcjl,x -0its motion with respect to time.

  Can an object have increasing speed while its1-pznyeor10g acceleration is decreasing? Support your answer with an examplenpog101zyr e- .

  Suppose a can, after an vsl976kzz9. kggajag,g 2 +w einitial kick, moves up along a smooth hill of ice. Makeaa9 .sg7 gjz+wg 6kkg z9vl,e2 a statement concerning its acceleration.

  Under what condition is average velocity equal to th;ih txm/t8 vg2 y(zpxa4e;)pfe average of the object's ine4ixmza 8t(pxh g;/yf2 ;pv) titial and final velocity?

  Objects A and B both start at rest. They both accelerate at the same rate. How7fy -smi re)l/sdp(ln78hl/ n ever, o)-n dm7/ l8hli(ryslnps7/ef bject A accelerates for twice the time as object B. What is the final speed of object A compared to that of object B?

  Objects A and B both start from rest. They both accelerate at the same q9 x1l ityt;p*rate. However, object A accelerates for twice the time as object B. What is the distance traveled by object A compared to that o*;9pxltqyit 1 f object B?

  When an object is released from rest and fal/*-lzqcjgjd 3ls in the absence of friction, which of3-/jcd gj*l zq the following is true concerning its motion?

  When an object is released from rd c(7nefw81 aiest and falls in the absence of friction, which of the following is true concerning its motion?na(dc78w e1f i

  Suppose a ball is thrown straight up. Make a statement about the x 615n vufx)rj,fg0mfvelocity and the acceleration when ,5fx j1xfr0uvmgfn )6 the ball reaches the highest point.

  Suppose a ball is thrown straight up. What is its accelerat7e1 fmq s9qf.5d/wxj8kqk 9giion just before it reaches its highest poi qs9 95e71kf qj8fi .q/gxkdwmnt?

  Suppose a ball is thrown straight wt7su) 8rja )sup, reaches a maximum height, then falls to its initial height. Make a statement aboutsurjtw)s87a ) the direction of the velocity and acceleration as the ball is going up.

  A ball is thrown straight up, reaches a maximum heighy l ncrr7jyh8t92 h8y8d8a/xqt, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball i j 9rr8c/ytdah q8hlyx827y8 ns coming down.

  Suppose a ball is thrown downward in the absence osnpi *ef6w,5lf air resistance. Make a statement concerning its acceleration6l es5piwn*f ,.

  Suppose a skydiver jumps from a high-flying plane. What is her accelerations ;q(v b4jmgpvr b/(7j when sqrp; jjb( (v/bm7v4sghe she reaches terminal velocity?

  A ball is thrown vertically upward with a speed v. An identical secondk/j/ qag+t 2s1zn 6+j sfkqmwno/(m.z ball is thrown upward with a speed 2v (twice as fast). What is the ratio of tjzn2+qf6k/g( s ko ./+ jq1tasnm/zwmhe maximum height of the second ball to that of the first ball? (How many times higher does the second ball go than the first ball?)

  Ball A is dropped from the top4kz6/j:3c gni 8b vpv.4isvaw of a building. One second later, ball B is dropped from the same building. bw /n js4 pvgkzv43 c:vi8.ai6As time progresses, the distance between them

  Ball A is dropped from the top of a buildzq pl6. ds/-ehdw t47ling. One second later, ball B is dropped from the same building. As time progresses, the difference in their speedsdd.-6lq4 l etpwh7z/ s

  Two objects are thrown from the top of a tn2 huew q:0ac-all building. One is thrown up, and the other is thrown down, both with the same initial speed. What are tn :cqueaw- 02hheir speeds when they hit the street?

  A brick is dropped fromv w:-.7h*+zbqrf)b i*k q znxx the top of a building. A second brick is thrown straight down from the same building. They are released at the same t+.x*hv *:qnr)k7xifz q-bzbw ime. Neglect air resistance. Compare the accelerations of the two bricks.

  An object is moving with constant non-zero velocity i :j 4+lme4kcix8-yzov hp:5 qjn the +x axis. The position versus time graph of this obje5 +4iqev jx:y 84clzomkp-: jhct is

  An object is moving with constant non-zero acceleration in the +x ,4o 73kwmwh qj2 6urqhaxis. The position versus time graph w6,u 7 wh4hrmo2j3qqkof this object is

  An object is moving with cons/ozj 5/uprkop-pmj3qr )ry 2,tant non-zero velocity in the +x axis. The velocity versus time graph of t-ur/j3p,pyk5jpz oor2r) qm/his object is

  An object is moving with constant non-zero acceleration in the +x axa5dn5ako*sc mnr5r./* x* gdris. The velocity versus time graph of th5rd5rm*gnckxo d5nasr* a*/.is object is

  The slope of a position versu4x 3 a( gve4c*vwdtir+s time graph gives

  The slope of a velocity versus time graph giveb38imy njv+4v s

  The area under a curve in an acceleration versus time graijq8 *mfh rbz( f5t6)jph gives

  The area under a curve in a vetu4f. wxyleo /u;( hx+locity versus time graph gives

  If the position versus time graph of an object is a horizonrc2 9tp4hf yvr(zt73e ybk f13tal line, the object ir rptt3 z 9f 3ev2yfy4c(hb1k7s

  If the position versus time graph of an obje 2-rmsor*my1x ct is a vertical line, the object is* mro 2mr-y1sx

  If the velocity versus time graph of an object is a horizontal line, the on(uu p )t04xep 7)bejzbject pt (ejznxeb 4)7u0u)pis

  If the velocity versus time graph of an object is a straight line makingue:wm 6 c5i bzxda,v,; an angle of 30 degrees with the6m5wzia v:x, de;ucb, time axis, the object is

  An object moves 15.0 m north andkns/ ,rjs3jv. then 11.0 m south. Find both the distance traveled and the magni,3srjsvnj .k/tude of the displacement vector.

  A boat can move at 30 km/h in still water. How long will it take to move rtv rsr 348siohv0y/d-9xc 7w12 km upstreamrd3 -0t/9rocxswv4yrv s7 i8h in a river flowing 6.0 km/h?

  55 mi/h is how many m/s? (1 mi = 1609 m)a(+ um r-uzq x. sy++7mvq4idd

  What must be your average speed in order to travelpkt9 ,b 4.xol. yxvnqd5fb5o ; 350 km in 5.15 h?

  A runner ran the marathon (approximately 42.0 km) in 2 hours and 57 min. 2dxgwb3gz u4y kjy)l g)1/3lm What is the average s xy2 dll u3jwbmg3ky4g1)gz/)peed of the runner in m/s?

  A car travels 90 km/h. How long does it take for it to travel 4ic;c.om t 3s;x00 km?

  A ly (light year) is the distance that ligha j.hcot/s ,ivtrlup53 q:3 m5t travels in one year. The speed of light is a.,r3p jv35lo smt:uqithc5/ $3.00 \times 10^8 \; m/s$. How many miles are there in a light year? (1 mi = 1609 m, 1 yr = 365 d.)

  If you are driving 72 km/h along a stzbbz2ui1)c u /,t6 lnfraight road and you look to the side for 4.0 s, how far do you travel during this ilt,z)ib/cf zu 1n6u b2nattentive period?

  If you run a complete loop around an outdoor 3pi7gazqn40gme v 0:e x+xsg 1track (400 m), in 100 s, your average velocity xp 07n iem:ves40gzagqxg +31is

  A polar bear starts at the North *x++sj3k q r1topaam7p+e 7aa Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km a ++e3mpk+o1 a 7sjxpr7taq *anorth, then 1.0 km west to return to its starting point. This trip takes 45 min. What was the bear's average speed?

  A polar bear starts a .auw f 0,8oshfd+1( h8hzbwswt the North Pole. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, then 1.0 km west to return to its starting point. This trowhffh+ uhs.1b (0zw dw8as, 8ip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend from school at 55 mi/h k:ki+, d/c1mwoh h /qwpuy(z5mx/f8g for 110 miles. It then starts to snow anckk/ o:d 1xpz wwfh+,8gm/u5 /ihyq(m d you slow to 35 mi/h. You arrive home after driving 4 hours and 15 minutes. How far is your hometown from school?

  A motorist travels 160 km at 80 km/h and 160 km at 100 km/h. ruqj1.z-hdzj8, r)up What is the average speed ofdrzuhr-qj,) u18 zjp. the motorist for this trip?

  A motorist travels for 3.0 h at 80 kmy)aeqbp0m6mi7 qv r. 1/h and 2.0 h at 100 km/h. What is her average speed for the6vqy mq )a 17b.pm0rie trip?

  An airplane travels at 300 mi/h south for td:lq+7kmms6zl m ;cu(x *su.2.00 h and then at 250 mi/h north for 750 miles. Whamtl:u cl6ms7us( zxk*m d q+.;t is the average speed for the trip?

  In a 400-m relay race the anchorman (the person who vt(yrfamm)/a9ft/cm q x1+u5 runs the last 100 m) for team A can run 100 m in 9.8 s. His rival, the anchorman for team B, can cover 100 m in 10.1 s. Whavf 5)am1+ mrqu/ /xyfm9 catt(t is the largest lead the team B runner can have when the team A runner starts the final leg of the race, in order that the team A runner not lose the race?

  A car decelerates uniformly and comes to a stop after 11 28 k7frfdrt l;s. The car's average v;8l 7 rtfdfkr2elocity during deceleration was 56 km/h. What was the car's deceleration while slowing down?

  An airplane increases its speed from 100 m/s to m2o 8l2 ya4dfv160 m/s, at the average rate of f2avo2 d4y8ml $15 \; m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at 6c1(bvx6 mo.su; b:cppsze g.the rate of $2.0 \; m/s^2$. How much time is required for the car to reach a speed of 90 km/h?

  A cart starts from rest and acouhyb,72 vcoq z ;5mk-celerates at $4.0 \; m/s^2$ for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of $2.0 \; m/s^2$ for 4.0 s. What is the final speed of the car?

  A car travels at 15 m/s for 10 s. w:f1l g6qrhj7 It then speeds up with a constant acceleratiog: qj76rwh1l fn of $2.0 \; m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initib - wgmf 8n6qce9/)pijal velocity of 2.0 m/s experiences a constant acceleration ofegjn -m ifqcpw9 68b)/ $4.2 \; m/s^2$. What is the cart's displacement during the first 7.8 s of its motion?

  A bullet moving horizontally to the right (+x direction)j p934t ei8wof1nywe2 with a speed of 215 m/s strikes a sandbag and penetrates a distance of 72.17 cm. What is the avnfj8 2eypti943wo we1erage acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is launched from a catapult on an aircraft(,djq+vh(vahiza ef1 1te6r.gx4/w m carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0 s. Assuming the acceleration is constawidz141h t, qr(f / jmvvxa. hea+(6gent, what is the length of the catapult?

  A car starting from res:pg iy 49)m6vq7m ptpot moves with constant acceleration of $2.0 \; m/s^2$ for 10 s, then travels with constant speed for another 10 s, and then finally slows to a stop with constant acceleration of
-$2.0 \; m/s^2$. How far does it travel?

  A car goes from 40 m/s to 80 m/s in a distance of 200 h.2340cocrl4e t9mf inh)-l x4qgyav m. What is its average acceleratn )a ti 0rvl94423ccye-m oq glxfh.4hion?

  An object starts from rest and undergoes uniform accelere:v-p.bjsa(-hr -nhu +be3 kration. During the first sh+vsb- -(pj k:-nareub.erh3 econd it travels 3.0 m. How far will it travel during the third second?

  An object is moving in a straight line with constant acceleration. Initiar::kwu cp6ofai -m n1 y4s(h6elly it is traveling at 16 m/s. Thno :m1 whrk64sap 6( uf-i:yceree seconds later it is traveling at 10 m/s. How far does it move during this time?

  A car starts from rest and accelerates uniformly2:- s suf,oa(j .xvvxc at $3.0 \; m/s^2$. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at $5.0 \; m/s^2$. How long does it take the second car to overtake the first car?

  A car with good tires on a dry road can kz; l0*b2;r 2ojox*oxzsg rx)hs 9kw1decelerate at about $5.0 \; m/s^2$ when braking. Suppose a car is initially traveling at 55 mi/h.
(a.) How much time does it take the car to stop?    $s$ (only input numerical values)
(b.) What is the stopping distance?    $m$ ((only input numerical values)

  At the instant a traffic light t2ey 1xaly qh)0urns green, a car that has been waiting at the intersection starts ahead with a constqh 1) 0lxyye2aant acceleration of $2.00 \; m/s^2$. At that moment a truck traveling with a constant velocity of 15.0 m/s overtakes and passes the car.
(a.) Calculate the time necessary for the car to reach the truck.    $s$ (only fill in numerical values)
(b.) Calculate the distance beyond the traffic light that the car will pass the truck.    $m$ (only fill in numerical values)
(c.) Determine the speed of the car when it passes the truck.    $m/s$ (only fill in numerical values)

  An object is thrown upward with a speed of 12 m/s on the surface ofvdz+z+o uhrs0g: z 8p) planet X where the acceleration due to gravity ir v+)o8g+ zuz zs0phd:s $1.5 \; m/s^2$. What is the maximum height reached by the object?

  An object is thrown upward witt(9hyvzi j5 0 nf(quo:j5oorw;1. hgth a speed of 12 m/s on the surface of planet X where the acceleration due to gravit qyt h5(wio9hzog( v :0j.;u5or 1fnjty is $1.5 \; m/s^2$. How long does it take for the object to reach the maximum height?

  An object is thrown upward with a speed of(uly(mczrgbz 4a6; +cizh (p; 15 m/s on the surface of planet X where the acceleration due to(ib6;l+h(rp(amgu4zzy;cz c gravity is $2.5 \; m/s^2$. How long does it take for the object to return to where it is thrown?

  An object is thrown upward with a speed of 14 m/s on t 3*t z1w/5yhgmcc s+a)lx; j2 e.amz7sehl .swhe surface of planet X where the acceleratiocss;hw+ytza 1axl2g c sj)5h*7eme / 3mzwl..n due to gravity is $3.5 \; m/s^2$. What is the speed of the object after 8.0 s?

  Human reaction time is usually gdj /9 iu**a1tt uajnu.g/p3o wap5db eb;x39 greater than 0.10 s. If your friend holds a ruler between your fingers and releases ; j/d3u dwabeb99 /x1 5aup* aijug3op.gtn*tit without warning, how far can you expect the ruler to fall before you catch it?

  A ball is thrown upward at a velocity ofp p-r9045daxhh y4vnw i; fio; 19.6 m/s. What is its velocity after 3.00; ovyn5944-;xf rhw dapihp0i s?

  A bullet shot straight up returns to its siq vty(7r0k h8tarting point in 18 s. What is the initial speed ihq70( tr8y kvof the bullet?

  A ball is thrown straight up with a speed of 36.0 m/s. How v22* zkzn ga3u si(xwael+0v, long does it take to return to its starting p2x+ 30n wl2z* vui(vg esa,akzoint?

  A ball is thrown downward from the top of a builb)p x 3 +w9gvtaz,osp6fi w lpir):u:*ding with an initial speed of 11 m/s. It strikes the groun wpp ru3zpl: bovisix) a,+fg6:*)w9t d after 6.2 s. How high is the building?

  A ball is thrown straibf1**l ygmgj;p,tp4s)a y)ujd 38cw j ght up with a speed of 30 m/s. (only fill in numerical value iyua*m 8g f4d3ly ,g)p1 ;tjc)pws*jjbn the blanks)
(a.) How long does it take the ball to reach the maximum height?    $s$
(b.) What is the maximum height reached by the ball?    $m$
(c.) What is its speed after 4.2 s?    $m/s$

  A foul ball is hit straight up into the air w19atu ; 9g3cr gm2iytog2 gcb-ith a speed of 38.0 m/s. (use $g=10 \; m/s^2$, only fill in numerical value in the blank)
(a.) Calculate the time required for the ball to rise to its maximum height.  (数值)  $s$
(b.) Calculate the time for the ball to fall back to the height at which it was hit.  (数值)  $s$
(c.) Calculate the maximum height reached by the ball.  (数值)  $m$
(d.) Calculate the ball's speed 2 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 12 m above the point of contact between the bat and ball for the first time.  (数值)  $s$
(f.) Determine the time at which the ball pass a point 12.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the velocity at t = 1.0 um4 2tt-xnvwu(x+,kv;ffxp 3s?

  In Fig. below, what is the velogckpx,zbq7m1q/ hxn8 /,je-n city at t = 2.5 s?

  In Fig. below, what is the velocity at t = 4.0 s?t)a clds)+naqnb e tv/og*e8 1:eo2q; k 1v.us

  In Fig. below, what is the velocity at t 8uder k)+mf3),7z7 rg*d ghj i7 leaxm= 5.5 s?

  In Fig. below, what is the average velocity from 0 to 4.0qx. t; s+xssoru+zvjv v*8j8 8 s?

  In Fig. below, what is the average veloci 1)gyics nlidxf vo7y.8p c12)ty from 0 to 6.0 s?

  In Fig. below, what is 4 n:vs*j*+mu; shc nix91lvo othe acceleration at 1.0 s?

  In Fig. below, what is the acceleration at 3.0 s0wu8x vsl b v;3tg6p/t.ue)yjo h7n)s?

  In Fig. below, what is the average acceleration from 0 6flr; o(x +eeq14 egqmto 5.0 s?

  In Fig. below, what iog)t0og1r7oouns : e:s the average acceleration from 0 to 8.0 s?

  In Fig. below, what is the displacement from 0 uha4aic sb* 4/to 8.0 s?

Does a car speedometer measure speed, velocity? {speed|velocity lv)ymre 16(ww*ffi 7qp;nngh;zx j97}

  An object can have a varying speed if its v a5/vhw( uwef6j8z( yzelocity is constant.

  The velocity of an object can be negative when its accelerati1r/qd8w jfzodp0;ref79. wgcx8q n d, on is positive.

  If one object has a greater va .ch/ w7cnp:hze 5e9speed than a second object, the first must have a great.h c/w ee:795pcznh vaer acceleration.

  Two cars emerge side by side from a tunnel. Car A is travelin 0t8kxsx0erbr8:3sceg with a speed of $60 \; km/h$ and has an acceleration of $40 \; km/h/min$ Car B has a speed of $40 \; km/h$ and has an acceleration of $60 \; km/h/min$ . Can A will pass car B at the instant they come out of the tunnel.

  An object can be increasing in speed as its acceleration decres7i8kv4js7trfymc 3d /w ;k6qases.

  A baseball player hits a foul ball strai: 2(eed5vj tt r06gijbght up into the air. It leaves the bat with a speeg r e (v6jt2tbedi05j:d of $120 \; km/h$. In the absence of air resistance, how fast will the ball be traveling when the catcher catches it?    $km/h$ (please only fill in numerical value in the blank)

  As a freely falling object speeds up, what is happening ttnzrd+56p- cse82y7rbjm g:g o its acceleration, how does it change if air friction is i+gc zt e-d:6npb8jr5sm7 r2g ygnored?

  As a freely falling objy/)h ja2y rgk wfpbk kh/+yug)9)dz.;ect speeds up, what is happening to its acceleration, how doe.a//k r+)2kg kd9ywzh ;yj) )gh yfupbs it change if air friction CAN NOT be ignored?

  An object that is thrown vertically upwav5sm86 weh(1-6vgoiq tzquk* rd will return to its original position with the same speed as it had inivq-mtzuq* 615i6gsvo(kweh 8tially if air resistance is negligible. If air resistance is appreciable, how will this result be altered?

  An object can have zero ve )jof+wk5c io7 h2wej;locity and nonzero acceleration at the same time.

  An object can have nonzero velocity andrgv wmksg 65920.f e:xdxr,e w zero acceleration at the same time.

  An elevator moving from thehka9;vsgmcd ;fa ;+e 1 second floor to the fifth floor making no stops along the way has zero acceleration all thsehg1 a;f;cv+;k9 d mae time.

  A rolling ball moves from 0 bpcggm 9-d6hs7xj /v$x_1=2.4 \mathrm{~cm}$ to $x_2=-8.6 \mathrm{~cm}$ during the time from $t_1=2.6 \mathrm{~s}$ to $t_2=5.3 \mathrm{~s}$. What is its average velocity?  (数值)  $cm/s$ (only fill in numerical value please)

  A particle at $t_1=-4.0 \mathrm{~s}$ is at $x_1=2.3 \mathrm{~cm}$ and at $t_2=4.4 \mathrm{~s}$ is at $x_2=7.3 \mathrm{~cm}$. What is its average velocity?  (数值)  $cm/s$

  A person jogs eight co1b06 5:mk thbb,anlto mplete laps around a quarter-mile ($1 \; mile = 1609 \; m$) track in a total time of 7.9 min. Calculate (a) the average speed  (数值)  $m/s$ and (b) the average velocity    $m/s$

  A horse canters away from its trainer ocb( 0v o1:qgain a straight line, moving 89 m away in 9.6 s. It then turns abruptly and gallops halfwayoo1 g0:(aqcvb back in 4.6 s. Calculate (a) its average speed  (数值)  $m/s$ and (b) its average velocity  (数值)  $m/s$ for the entire trip, using “away from the trainer” as the positive direction.

  A car accelerates from5sv e75p mcjd*mtuu41 $11 \; m/s$ to $23 \; m/s$ in 4.1 s. What was its acceleration?  (数值)  $m/s^2$ How far did it travel in this time?  (数值)  $m$ Assume constant acceleration.

  A car slows down from xoq 4 h6d2dcqgq5;o8yv 9n4gx$18 \; m/s$ to rest in a distance of 66 m. What was its acceleration, assumed constant?  (数值)  $m/s^2$

  A light plane must reach a sxwnpcp:;2owk 04re ;qr.zv/upeed of $29 \; m/s$ for takeoff. How long a runway is needed if the (constant) acceleration is $2.9 \; m/s^2$ ?  (数值)  $m$

  A world-class sprinte v6 *bceg4z7tu(o.pyyr can burst out of the blocks to essentially top speed aboutcou* b 6pe(.gvy7z4 yt $10.8 \; m/s$ in the first 14.7 m of the race. What is the average acceleration of this sprinter?  (数值)  $m/s^2$ and how long does it take her to reach that speed?  (数值)  $s$

  A car slows down uniformly from a speeo-.flek( .9gm nt suo+d of $17 \; m/s$ to rest in 5.07 s. How far did it travel in that time?  (数值)  $m$

  In coming to a stop, a car leabzd ee*4 a7j4.a ifa(dqc3o3 tves skid marks 92 m long on the highway. Assuming a deceleration of c oiqdjb ( eae4z7f3.3*4aatd $7.00 \; m/s^2$, estimate the speed of the car just before braking.    $m/s$

  A car is behind a truck going uyx5n/a+z fg p8v)mgck1/q0 l$25 \; m/s$ on the highway. The car’s driver looks for an opportunity to pass, guessing that his car can accelerate at $1.0 \; m/s^2$. He gauges that he has to cover the 20-m length of the truck, plus 10 m clear room at the rear of the truck and 10 m more at the front of it. In the oncoming lane, he sees a car approaching, probably also traveling at $25 \; m/s$. What is the closest distance of the approaching car that he can still sately make the attempt to pass the truck? (without hitting the approaching car).    $m$

  A runner hopes to complete the 10,000-m runck2qb84 0p ux)-kvy0oz dah8g in less than 30.0 min. After exactly 27.0 min, there are still 1100 m to go. 08yxg0 z ko -ph4kaub v28c)dqThe runner must then accelerate at $0.20 \; m/s^2$ for how many seconds in order to achieve the desired time?    $s$