Suppose that an object travels from one point in sp(gpmk .zpp;4xs 3 h* q5e*ruilace to another. Make a comparison between thex3ipume.klr* 45;sg (qh*pz p displacement and the distance traveled.

  When is the average velocity of an object equal to the instantaneous velo +y7h(uks4c u00zyb0w k7uh yxcity?

  A new car manufacturer advertises tha)z r194mqg59zbilds gt their car can go "from zero to sixty in 8 s". This is qg iz9 l g1zm95s4r)dba description of

  An object moving in the +x axis experiences an accele0zi o03j lrla6e a9k5yration of $2.0 \; m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x direction) begi.z 4aya nqlenkde7 7c4 -tma15ns to slow down as it approaches a traffic light. Make ek lqmtaa4-c4a5 n7zyn d1e.7a statement concerning its acceleration.

  Suppose that a car tyyc1c acs jqm,e3,d6+ raveling to the West (-x direction) begins to slow down as it approaches a traffic light. Make a stcj ,qae61sym c3c+ dy,atement concerning its acceleration.

  Suppose that an object is moving ,3+ y3qfnd pi6mjh bid( ))bgawith a constant velocity. Make a statement concerning its accelb +3dm,dq)igj6i3 yan)fp (bheration.

  If the velocity of an object is zero, does it yok )xnk7)y)bmean that the acceleration is zero? Support your anx)boy7 )y)kknswer with an example.

  Can an object's velocity change direction when its acceleration is constaxdbf582zzw jr9sk.91zb au-e *fyvq ,nt? Support your answer with-,ueaj x szr k1w5f yqvd.z28*bf9bz9 an example.

  Suppose that an object is moving with constant acceleratu:mlj- le 23wiion. Make a statement concerning its motion w w:ui-3llmj2 eith respect to time.

  Can an object have increasing speed whil+ey*sj im8x7 (msg;6kh+d p qje its acceleration is decreasing? Support your answer wg;k * hjs7d(i6spxje+m+myq8 ith an example.

  Suppose a can, after an initial kick, moves up along a smooth hilldpx 4 whr:(0op of ice. Make a statement concerning its ac0(dwp p roxh:4celeration.

  Under what condition is average velocuc5bmbsh.99.bq (wot-vc+ y eity equal to the average of the object's initial and f.e-qyt o+mcc.9 u9whbbv(s 5binal velocity?

  Objects A and B both start at rest. T(noaq5cz pokx0g2v7 +k;;owhe c5ij 4hey both accelerate at the same rate. However, object A accelerates for twickn+g ;a o;i hq5 cozcev5j70opx w4(2ke 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 rater hh ybjlsxo16:(jgr.n m9x)- . Howerm- hgoh xs 91br:j. 6nyj(xl)ver, object A accelerates for twice the time as object B. What is the distance traveled by object A compared to that of object B?

  When an object is released from rest and falls in the absence of fri2rd0pa4h ji5iction, which of the following is true concerning its aiip h42d j0r5motion?

  When an object is released from rest and falls in the absence of friction, whi4ptktj:7nk) jch of the following is true concerning its m4 ktt:p7kn jj)otion?

  Suppose a ball is thrown straight up. Make a stateyp+k 83zr2vb lpd nwy1v7wfvl)*m+ a 2ment about the velocity and the acceleration when the ball reaches the highest f)27 d v+p+1v3rp8w*byynavw llzmk2 point.

  Suppose a ball is thrown straight up. What is its accelerawdi(h/ms2*h )tp z ) hcs,tiv0qdx:d 5tion just before it reaches its highes ,sq*i)p:t(z hd h 5mcw)vt/0is2 dxhdt point?

  Suppose a ball is thrown straight up, reaches a maximumxprnuck)o i1k1 0 7pv4 ;4okgd height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball xnc) 4v701oprk14uo dkk ipg; is going up.

  A ball is thrown straight up, reaches a maximum ll6+p. lff+t3wn/ 2zrab6fp oheight, then falls to its initial height. Make a statement about the direbl6p lr6 pftwf++ln.3ao/2fzction of the velocity and acceleration as the ball is coming down.

  Suppose a ball is thrown downward in the absence of air resistance. Make a si.y +yf -rs8uktatement concerning its accelera yfikr.s8u+y- tion.

  Suppose a skydiver jumps from a high-flying phkq0i* ,f+ ) ehj h1)zavk.ya t0:eaqilane. What is her acceleration when she sheq)):hqhh.*a0v+e a1a,j f zkiitky0e reaches terminal velocity?

  A ball is thrown vertically upward with a speed v. An identical second ballx 2nq:i6ts; by is thrown upward with a speed 2v (twice as fast). What is the ratio of the maximum height of the second ball to that of the first ball? (How many times higher2n 6xtb:i; ysq does the second ball go than the first ball?)

  Ball A is dropped frobv r*ued ag 0wk6*ykd4) *tw,uvkc2 ,im the top of a building. One second later, ball B is dropped from the same0kwgdcb4 v *,wku yad,6*rui2vk)e* t building. As time progresses, the distance between them

  Ball A is dropped from the top of a buibz(rbt(iet j(b482+ bi3yu yjlding. One second later, ball B is dropped from the same building. (ybui3 (tjzb2+(b8 4yjiet br As time progresses, the difference in their speeds

  Two objects are thrown from the tov aoz0ogzw)muqb9n:-* 96/6oa bcqxhp of a tall building. One is thrown up, and the ow660:hb-z9a )nxoocqzg/b av u*qm 9other is thrown down, both with the same initial speed. What are their speeds when they hit the street?

  A brick is dropped from the top of a building. A second brick is thrown stra2,2txun tev( c fwln+1ight down from the same building. They are released at the same ti(n c,e 22ttlfx1v+n uwme. Neglect air resistance. Compare the accelerations of the two bricks.

  An object is moving with constant non-zero velocity in the +xi)u;ej dv jxq:.9h xg9j6 hk.q axis. The position versus time graph of this objejeqx qk j)u6hvd9gj:h; 9i.x. ct is

  An object is moving with constant non-zero acceleration in the +-ut5(m iej.i1) ia pj+as.hk ew 7(yafx axis. The position versus time gkjw5.h aye-jamut (p)+aiis.f7e 1i ( raph of this object is

  An object is moving with c8) ovwd(bn5ayoc:n)q7 -.sye b. dxgvonstant non-zero velocity in the +x axis. The velocity versus time graph of this obj8)b v)yqw xonb.se (7y5a n:.gv c-ddoect is

  An object is moving with constant non-zero acceleration in the +x axis. Thibh;zugq z3m+olrcwrp)*j p*p -c -(* (yaa9ge velocity versus time gr9mz;ioc(a* bylr+ g w zugqp)*-p3-pr*jc( ahaph of this object is

  The slope of a position versus time graph givzm + n2g+(egifes

  The slope of a velocity v+fq lweqiy y8m: dtg: ynfq2/b/8 ae1e 6(al-eersus time graph gives

  The area under a curve in an acceleration versus time g fqi8jp27 0ltyraph gives

  The area under a curve in a v7mz 8u*9n gxge y4f2cgelocity versus time graph gives

  If the position versus time graph of an object is a horizontafe:gr0pwqx v 0p;56d hl line, the object isw hqgpdf r5p;:0e 60vx

  If the position versus time graph of an object is a verticp l. ,n)2* uld-k7kx6gldqysw al line, the object is kdqxkug 2sld76 lp- y*nwl.,)

  If the velocity versus time graph of an ob rndm(s*7yi)c ject is a horizontal line, the object c7n*(miy sr )dis

  If the velocity versus touu7 1itqt(ns m0p si60k 7m8xime graph of an object is a straight line making an angle of 30 degrees with the tqtp t mnk(0o ui7s810um7is6x ime axis, the object is

  An object moves 15.0 m north and then 11.0 m south. Find both the *i nieuhjyfz*/ *k() xdistance traveled and the magnitude of the disp ehuk*(jf x)i/nz*i y*lacement vector.

  A boat can move at 30 km/h in still water. Hv9+(6q68*q,ixj yw yzvezsido7 eg2c ow long will it take to move 12 km upstream in a rij7 g zqi( 9c,veeyzw6q6s vx2yd i+*8over flowing 6.0 km/h?

  55 mi/h is how many mtqnga8cs3;zb v3( qz6/s? (1 mi = 1609 m)

  What must be your average speed in order to travel 350 km ini/ q it .jv;f4)hwvf0l 5.15 h?

  A runner ran the marathon (approximately 42.0 km) in 2 hours and8zk vsj0m(t yks- ur7+ vt4/y)hwuk5i 57 min. What is the ak8/zysky5v)mih (7 r0k4t +uvjs uwt-verage speed of the runner in m/s?

  A car travels 90 km/hzaptak75aq 1/t3jvb, . How long does it take for it to travel 400 km?

  A ly (light year) is the distance that light travels in ony w 0fnnyjl*)(e year. The speed of liw*)y (y0fn njlght is $3.00 \times 10^8 \; m/s$. 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 straight road and you look to the side f dzrb 5uh*/z-qor 4.0 s, how far do you travel duz -h zd5qb/*ruring this inattentive period?

  If you run a complete loop around an outdoor track (400 m), 5std9vs4y4cs zo d+r )in 100 s, your average velvzt +srsd9d4)cy4 5soocity is

  A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km e7u d nvi l1a-cn)dua x*cy9-y)ast, then 1.0 km north, then 1.0 km west to return to its starting point. This trip tnd-y-xn ducv l9)ua*i7a)cy1akes 45 min. What was the bear's average speed?

  A polar bear starts at the North yypaf.)yud 79 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 trip takes 45 min. What was the bea dyyyp 9u).7afr's average velocity?

  You are driving home on a weekend from school at 5y rdrc*vvl b;9715foa5 mi/h for 110 miles. It then starts to snow and you slow to 35 mi/h. You arrive home after driving 4 hours and 15 minutes. How far is your hometown from school?cda;b 719rrv*ly5v fo

  A motorist travels 160 km at 80 km/h and 160 km at 100 9 f5h(+ bmm*tvxdqfld-c,l8q5as(x skm/h. What is the average speed of the motorist for thdh mfd q9am+v5x(xtf sc ,q5ls*-8bl( is trip?

  A motorist travels for 3.0 h ((avu p..0 -xqtathxl at 80 km/h and 2.0 h at 100 km/h. What is her average speed fox- xt0(ua. th.lqpva (r the trip?

  An airplane travels at 300 mi/h soutpk y5y fxz64v4h for 2.00 h and then at 250 mi/h north for 750 mi6vyzp k45y4x fles. What is the average speed for the trip?

  In a 400-m relay race the anchorman (the person w7yfgzr.2 *8 as8o-vtl ny*p niho 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. What is the largey-r p ny* on78*vtl2sigf8.za st 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 13 s. Th+ afn+ty2s k/oh9m pw0j;yh8m e car's average velocity during mwy0f+ j+t/shy;m oh2na9k8pdeceleration was 51 km/h. What was the car's deceleration while slowing down?

  An airplane increases its speed from 100 m/s to 160 m/s,anda v207 6ho7l: qdch at the average rate of 7l2vh o6 ac :0h7aqddn$15 \; m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at the rat7 jpu7 waccueg3kq8ae/2x2 n7 e 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 r1*rqbv( b,z: mqica1t est and accelerates 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. It then speeds4 dps-o7/mc g52ams hb up with a constant acceleration oa54bogdh m2cs/7-mp sf $2.0 \; m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocity of 6.9 m/s experiences a constant acceleration ofgh ;s rv.iqlp8*g *hx:o;+ qnfn ifosh; *vhq.; q*+8lprx:gg $1.5 \; m/s^2$. What is the cart's displacement during the first 9.7 s of its motion?

  A bullet moving horizontally to the right (+x direction /li ez+0. ea4m8idzep) with a speed of 568 m/s strikes a sandbag and penetrates a distance of ezilee d. p+/m0azi 4846.70 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is launched from a catapult on an aircraft y-yw9li u5fr(et,nblfwk7;m(z i5 u: carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0 fyyr 7iwiuum(f; wnzb :lt,- 55e 9lk(s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with coi :..2b mpcuy(rjma. znstant 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/meyf379c089k mhz eexx0 p)eb s to 80 m/s in a distance of 200 m. What is its average acceleration?0 pzx emefe k e3h78xmc0b)99y

  An object starts from rest and undergoes uniform ace y,54 m-gah/2rtfl ovceleration. During the first second it travels 1.3 m. How far will it travel during to ay24ter /v5h flm,g-he third second?

  An object is moving xm;ze:ie xf6ipfw9: r5/oj(ain a straight line with constant acceleration. Initially it is traveling at(eo:ixa/fx eprfw; z 6:j59i m 16 m/s. Three seconds later it is traveling at 10 m/s. How far does it move during this time?

  A car starts from rest and accelerates uni5zj5mx/tblixv3w:u 6od 6 4v eformly 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;z2eb1fb*s l o,x4bnsqx 8 y-d can decelerate 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 turns green, abdceocx :7 rxww 35p0+ car that has been waiting at the intersection starts ahead bc5xw ro+7d:xw0pe3c with a constant 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 we 6xll) /na+ +f xhzvuf4qm2m fu1x-l.ith a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is/fn amlxe4x26+lmfx1)hqzv-l +u.uf $1.5 \; m/s^2$. What is the maximum height reached by the object?

  An object is thrown upward with a speed of 12 m/s on the surface of planet rrwu c2 t(bo)8*ywp. o5pa2ldX where the accelerattwo b.)upr25rpody8(w* 2a lcion due to gravity 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 15 m/s on the surfacefxwj3q m54. bv of planet X where the acceleration due to gravity mf3v. j4qwxb5 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 the surface oa) l4s h*wwimj7/88kym xsrz3f planet X where the accelerzrixjm 7yh/48)k8 3sw*wmlasation 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 greater 7y giol-31wzr than 0.10 s. If your friend holds a ruler between your fingers and releases it without warning, how far can you expect the y w7-1gr iz3olruler to fall before you catch it?

  A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity a 9.2sgkfgqo +ufter 3.00 g92.sqofug+ ks?

  A bullet shot straight up returns to its starting point in 8 s. What is the i4hck 1 x vz5iea6t+h0enitial speeie45+aevx t0hch k z61d of the bullet?

  A ball is thrown straight up with a speed o6yjhdtssh+i;r1am*fjpx1+7e t b6 , 25lcifuf 36.0 m/s. How long does it take to return to its startintf+lt; p 1je+b i7m6a f*2 syhdiu15,xr6hscjg point?

  A ball is thrown downward from the top of a building with an initial speocdik+*0 d i5ded of 15 m/s. It strikes the ground after 6.1 s. How high k d o0i5dci+*dis the building?

  A ball is thrown straight up with a speed o -pavp 8tyjn/3-ul2qvf 30 m/s. (only fill in numerical value in thealv v -yp8jt3up-qn 2/ 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 u v0v oeunest4/hb/x dl5 :7,fu zmsk33p into the air with a speed of 30.1 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 1 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 9 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 9.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the velocity at t = 1.0 s?7mk/4xo kht9 sg8s:an

  In Fig. below, what is the velhkm4zzbay j6qaos:)m 8f4s 8: ocity at t = 2.5 s?

  In Fig. below, what is the velocity at t = 4.(q/rvnxuj)ew :3l*z u0 s?

  In Fig. below, what is the velocity at t = 5.5 47 t+fztdcn6s8sm j 6es?

  In Fig. below, what is the average velocity from wi9 fik.0 t*wy0 to 4.0 s?

  In Fig. below, what is the average velocity from 0 togd1-,f)p. /wkksyl mnb +nw,f 6.0 s?

  In Fig. below, what is the accelera.+p0xe8vt6l/zi at pj tion at 1.0 s?

  In Fig. below, what is the accelera78 t:gw,fnomj5 sg4lpi 6* iyftion at 3.0 s?

  In Fig. below, what is the average accellpktobq t+/6p 8*qb2/ xdo p:seration from 0 to 5.0 s?

  In Fig. below, what is the average acceleration from 0*t*ny :7v2z 5ljoyjjr to 8.0 s?

  In Fig. below, what is p8z7orb vcj.d6, +:f;ecqs3e 3ybfkmthe displacement from 0 to 8.0 s?

Does a car speedometbji 0cw4 qvon,l1hb9b(f6 nz9 er measure speed, velocity? {speed|velocity}

  An object can have a varying speed if its fyt 4(pjxaan ,;,yyj 5velocity is constant.

  The velocity of an object can be negative when its acu7uueozv8k*/ehd*gb.8l x1 acl 4 i4n8b 9d ycceleration is positive.

  If one object has a greater speed than a szfti66l kgtusd .47(d econd object, the first must have a greater accel7 46g(6d fzltk.uid steration.

  Two cars emerge side by side from a ti3/ nzei36wo )wx l6cdunnel. Car A is traveling 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 inc 78v6zfhquc 0u0 / l+zv,qdwizreasing in speed as its acceleration decreases.

  A baseball player hits a foul ball straight up into the air. It leavp7ja ,cc 8/vi8u1 p zcz :v*v5/s uafszrd-.fies the bat wit8j,7 v/pacp.uc5vi1r i- f8vudcs:f /a*z z szh a speed 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 obj1/r7 bpqiju m2ek-2diect speeds up, what is happening to its acceleration, how domup2- / qi1ked72jirb es it change if air friction is ignored?

  As a freely falling o cli 4bri7ei.nsrq;l)8*m,f wbject speeds up, what is happening to its acceleration, how does it change is)bi f i87lrnl ie*.q,cm4rw; f air friction CAN NOT be ignored?

  An object that is thrown vertically upward wlmda6t 26ul 9tqh1zi-ill return to its original position with the same spez 6lqm hlad19i2tut -6ed as it had initially if air resistance is negligible. If air resistance is appreciable, how will this result be altered?

  An object can have zero velocity acc- /v hw:ri(n:.d9 t 7xmcnuend nonzero acceleration at the same time.

  An object can have nonzero velocity and zero acwn5je-0 dvzle0ex.1 aceleration at the same time.

  An elevator moving from the second floor to the fifth floiykgc x6k4n 3 cl-vn)*or making no stops along il*x6gkcnc3yv - )4nkthe way has zero acceleration all the time.

  A rolling ball moves ft tv7w )c7m wj/l1s/uyrom $x_1=1.7 \mathrm{~cm}$ to $x_2=-4.4 \mathrm{~cm}$ during the time from $t_1=1.3 \mathrm{~s}$ to $t_2=5.4 \mathrm{~s}$. 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 $x_1=2.9 \mathrm{~cm}$ and at $t_2=3.3 \mathrm{~s}$ is at $x_2=7.4 \mathrm{~cm}$. What is its average velocity?  (数值)  $cm/s$

  A person jogs eight complete laps around a quarter-m e:,6-p kzyuyeile ($1 \; mile = 1609 \; m$) 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 in a straight lilsyjq h9r0(sf+dl4g 4+xoc*x ne, moving 102 m away in 8.8 s. It then turns abruptly and gallops halfway back in 4.7 s. Calculjshrf x4lq++cy 0(s4d9o*l xgate (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 fro52g9 fkv-jk*oe9m kzl m $11 \; m/s$ to $22 \; m/s$ 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 9+wd af-wzs4b$18 \; m/s$ to rest in a distance of 80 m. What was its acceleration, assumed constant?  (数值)  $m/s^2$

  A light plane must reach a speed3me:1x nahm ick)8 ti: of $28 \; m/s$ for takeoff. How long a runway is needed if the (constant) acceleration is $2.3 \; m/s^2$ ?  (数值)  $m$

  A world-class sprinter can burst out of the blocks to essentially qf h0jm:0m;sn0 (c8kwd a5sr itop speed aboutc(h58a0sm f: sm;nw0 kdqj i0r $10.4 \; m/s$ in the first 12.9 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 speed xcab ji(fsi+i+ 2bjx/dy 82 (zof $16 \; m/s$ to rest in 4.76 s. How far did it travel in that time?  (数值)  $m$

  In coming to a stop, a car leaves skid marks 92 m long on thcr zzcnc) *w. g*fg 9xu9zk0l0e highway. Assuming a deceleranr9zfx gcl 90wc)gk*c zz0u *.tion of $7.00 \; m/s^2$, estimate the speed of the car just before braking.    $m/s$

  A car is behind a truck going 9:1cfd zvzme ko: cj1:fn+(vc$25 \; m/s$ 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 run in less than 30.prr;)l mgptg87x 6h;qg(7rwd0 min. After exactly 27.0 min, there are still 1100 m to go. The run7rr gxhgm(6pdl8ptw;;7) q grner must then accelerate at $0.20 \; m/s^2$ for how many seconds in order to achieve the desired time?    $s$