Suppose that an object travels from one point in space to aj)d0 v dy0.8e5nflelmnother. Make a comparison between the displacement and the dista 5lenld8)mefy.jdv00 nce traveled.

  When is the average velocity of an object equal to the instantiwu 9kwwcf w3o9d2 6x c09def+aneous velocity?

  A new car manufacturer advertises that their car c7hjycin pwy*9: )e qz/fucj54an go "from zero to sixty in 8 s". This is a desw9u i75jye*c yz hn)p:qj c4/fcription of

  An object moving in the +x axis ed 2s,scm plu3zt/ hx eu6,za0gzj9 24experiences an acceleration of $2.0m/s^2$. This means the object is

  Suppose that a car traveling to the East 3z* siqmys6cl5 r0:bs0o5ci8 gjix .r (+x direction) begins to slow down as it approaches a traffic light. Make a statement concc .bo 5srriy*i0 zmq5l8gi:6ss0c 3 xjerning its acceleration.

  Suppose that a car traveling to the West (-x directiondx qqi9p ( *5dqj(8elm) begins to slow down as it approaches a traffic light. Make a statementiqj l dd89*(5qxq(emp concerning its acceleration.

  Suppose that an object is moving with a constant velocity. Make a statement r(: v :1tfpujh4ujt ihpl4/x)concerning its acceleratio/:1 putlp( rh hv)f ui:j44jxtn.

  If the velocity of an object is zero, does itfub,i4: t :e. xeudd*yf4ut4c mean that the acceleration is zero? Support your answeitf y4 t4.:u bfx*uc,e 4d:uder with an example.

  Can an object's velocity change direction when its accelera uf+v; o tw)*wkmmj4ml0uybk9oe n///tion is constant? Support your answer witho4 b /n;mj/9l0)mou+wmkftvuwey*/k an example.

  Suppose that an object is moving with constant acceleration. Make a rmt,amug+*ybi-i (,ei (rd,s statement concerning its motion with respect to tim(,abrg i (riues,yi+dt m*,-me.

  Can an object have incr8r mybww9pojo+6bgx4n-3k o -easing speed while its acceleration is decreasing? Suppo bn-4-+w 8roo3kmpx y6ogwb 9jrt your answer with an example.

  Suppose a can, after an ig hn:8uuum.xu2pr8u/nitial kick, moves up along a smooth hill of ice. Make a statement u2ur/u nu:uh 8g.8 xpmconcerning its acceleration.

  Under what condition is average velocity equal to the average of the object'squyn7r+ sb; p;,k g/jz initial and final v,;n;y+ sp/k qju g7brzelocity?

  Objects A and B both start at rest. They both accelerate at the same rate. Howr /qj q3 fwz)bt3+e9hhever, object A accelerates for twice the time as objectqj w3ze+ hf) rt/qhb93 B. What is the final speed of object A compared to that of object B?

  Objects A and B both start from rest. Th65sy s w/m5tef-r)ah+rwxj t,ey both accelerate at the same rate. However, object A accelerates for twice the time as object B. What is the distance traveled afx, rw)mr 5 w5 y+6sjt/t-eshby object A compared to that of object B?

  When an object is released from rest and falls in the absence o3 e ouw95l 51 w8bzgrhn(l4csgf friction, which of thl4hcb 589eornsw1gzl35uw ( g e following is true concerning its motion?

  When an object is released from re7v12nwu6y/s g ;cenk hy.(d* ,vkcksist and falls in the absence of friction, which of the follycdkyihvs* cw;6 ksvn.k 1u, /g e27n(owing is true concerning its motion?

  Suppose a ball is thrown straight up. Make a statement un:/h8yve9u5hvc.pb6qor6 m about the velocity and the acceleration when the ball rea5brpqh:uu96 mv68n hyo vc/.eches the highest point.

  Suppose a ball is thrown straight up. What n81bw tq 1olmf n,xwt,tq()n/ is its acceleration just before it reaches tnntno1f, w 8/b)q1l(mq ,twxits highest point?

  Suppose a ball is thrown straight up, reaches a maximum height, then falls f wvp)yo2w5i p2ovq:1to its in qop5v:wyo2 i )21vfwpitial height. Make a statement about the direction of the velocity and acceleration as the ball is going up.

  A ball is thrown straight up, reaches a maximum height, then falls to its initiam ngcbf f*shbm32+ ;8kl height. Make a statement about the dire82f +nchgb3m*ks; mbfction of the velocity and acceleration as the ball is coming down.

  Suppose a ball is thrown downward in the absence of air resistance. Make afn( 7wxqg w79*a 2huiy statement concerning its accelerati7 * (wxi2qyh n7agf9uwon.

  Suppose a skydiver jumps from a hig5 rzk v:c-08js1ah rl vm bkage,7*;qth-flying plane. What is her acceleration when she she reaches terminal,s7 a-j;rqkr1m0hz tevk 8cb5a:gl*v velocity?

  A ball is thrown verticallwouxw)gt5 mqq m/v2zo5(8 ;t ,db/vo oy upward with a speed v. An identical second ball 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 higher does the second ball go t oxq m2wwo ,8d oo/qu/5;5 tz)vbv(tmghan the first ball?)

  Ball A is dropped from the top of a building. One second later,6vs0lv6,zcyx)kqnra ; sx6 ;()urv/w :y vynk ball B is dropped from the same bu)ry0)q y/,v vv;s;ka uv6 6wkx n6r:z sylxnc(ilding. As time progresses, the distance between them

  Ball A is dropped from the top of a building. One second later, bnc8 2um5(lymmall B is dropped from the same building. 8cmn u( 2yml5mAs time progresses, the difference in their speeds

  Two objects are thrown from the top of a tall buildix3kx.ae.l(a hng. One is thrown up, and ta( k3.elxaxh .he other 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 buildio 1-ofbhltls2 fzbmxnv+a6d8d .9 +t5e f,)m png. A second brick is thrown straight down from the same building. They are released at the same time. Neglect air resistance. Compare the accelerations of the t 6)dobn h-zfom1lfab d+ ,v58ttsm.e92fp+xlwo bricks.

  An object is moving with constant noipd3hq dqr2p( 9;x h0on-zero velocity in the +x axis. The position versus time graph of this oxqi0r9o qh3 p(ph ;2ddbject is

  An object is moving with constant non-zero acceleration in the +x ag wt3(rn 8*hb5idqf7gxis. The position versus time graph of this object ih g dnb57fqit83( grw*s

  An object is moving with constant non-zero velocity in the psxbbb; 7bl2jgw4h gl:s,xyw 42;1iw +x axis. The velocity very12,7; :2il h wxblbs gg wxwsjp4;4bbsus time graph of this object is

  An object is moving with constant non-zero acceleration in the +x a p gk):rcsisg92izv7:xis. The velocity versuk:irp7 2sgs: z9 ic)vgs time graph of this object is

  The slope of a position tib wfjr6jw u p(vx-/)*9;h trversus time graph gives

  The slope of a velocity vnl: fh:ndj9a p60op:fersus time graph gives

  The area under a curve i g;8q0gm:x7 g7d9c; ul mv9bg ,ibxuqun an acceleration versus time graph gives

  The area under a curve in a velocity versus time gou0r; bdq)ey. yeqw/* raph gives

  If the position versus time graph of an object is a horizontal line, the ob+z g btlr,ff)5ject ,t5 gb)r+zfflis

  If the position versus time graph of an object is a vertical linawls0jg .56ub +u +tpme, the object istlumj+ 5 b6s0+gpau.w

  If the velocity versus time grf513w9v06eqc2px tetqcwm:o kz u :1saph of an object is a horizontal line, the object is9cwxqkm2:vw5cs 0p36 1 to:qf ueezt1

  If the velocity versus time graph of an object is a straight line x(ixmvvwp51 /making an angle of 30 degrees with the time axis, the obmvxi/5v w p(x1ject is

  An object moves 15.0 m north anxw8:t 5 wokx5f1ypu 7wd then 11.0 m south. Find both the distance traveled and the magnitude of theyt :5x5p1w8w7uxk o fw displacement vector.

  A boat can move at 30 km/h in still water. How long will it take to sa;2kr z/+kd40kug npl3jw(f move 12 km upstream in a river flowi3sdz f(r ;kgja4 n2kw0/plu+k ng 6.0 km/h?

  55 mi/h is how many m/s? (1 misu+r ))ywu2 /e nny1is = 1609 m)

  What must be your average speed in order to travel 350 km in 5.1(r365 5:pbw f gqsmvuf,l1 xip5 h?

  A runner ran the marathon (approximately 42.0 km) in 2 hours and 57azf7 077qr yat min. What is the average speed ozy aar 7t0q77ff the runner in m/s?

  A car travels 90 km/h. How long does it take for i9*.stp8m zyp xt to travel 400 km?

  A ly (light year) is the distance that light travels in ont .tfkjxp;jr*wrq4t 1-;o7 vue year. The speed of light trk o 4rv7w x;-qu; j.tjt*fp1is $3.00\times {10}^{8}m/s$. 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 a9jk c33hzg1m z straight road and you look to the side for 4.0 s, c1 g9z3zmhk3 jhow far do you travel during this inattentive period?

  If you run a complete loop around an outdoor track (400 m), in 100 s, you0d eh c:ygr33l9ro/olr average velocigcr /dleo3h:r o39 yl0ty is

  A polar bear starts at the Northxbg1m db 6p:+*i5t lyg 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 tak bg d+p5*ylt1migb6: xes 45 min. What was the bear's average speed?

  A polar bear starts at the North Pole. It travels 1.0v,vg aq;ecb)8b;f)nh,8egh f km south, then 1.0 km east, then 1.0 km north, then 1.0 km west to return to it8qc)vb e ,f;,vge;hb8)ga hfns starting point. This trip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend from school at 55 mi/h for 110 miles. po0fcr16flig/ +yzp bl h; 3*p,lkh5 dIt then starts to snow and you slow to 35 mi/h. You arrive home after driviph1cf pl; kr/l+i 3lgz6o5h,y0 bd*fpng 4 hours and 15 minutes. How far is your hometown from school?

  A motorist travels 160 km at 80 km/h and 160 kq(+f /b46e mu 9twdbb8fyi/ wsm at 100 km/h. What is the average speed of the motorist dw+bq/bt4/uimfe8y w9 sfb6(for this trip?

  A motorist travels for 3.0 h at 80 km/h and 2.0 h at 101e4jawsu cm 7,j8kf7t 0 km/h. What is her averakwf ,ju41e7a8tm7 cj sge speed for the trip?

  An airplane travels at 300 mi/h south for 2.00 h andfn w65(z at(tl9cvqrmv +f;m7kh07vt then at 250 mi/h north for 750 miles. What is the average speed for th5 07 wt79;nmqm a cktf(fzvv+ (r6tlvhe trip?

  In a 400-m relay race th(k :sxqt4 0ku vf:29 sga kzootes:s84e anchorman (the person who runs the last 100 m) for team A can run 100 m in 9.8 s. His rival, the anchorms04f8xt a::ss t4k: seo vkg2o9kquz( an for team B, can cover 100 m in 10.1 s. What 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 uno t5+igmfq3bw*4 he: , te2srliformly and comes to a stop after 14 s. The car's average velocity during deceleration was 64 km/h. What was the car's deceleration while slowing lteg*rqh teofi2b+43s w :,5mdown?

  An airplane increases its speed from 100 m/s to nn;j2ok8w s zwa61lr 1cij31w160 m/s, at the average rate of iw2jjw6r1zl c3 1 nwan1os8k;$15m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at the razw4p3yyj 5po hz .k05gte of $2.0m/s^2$. How much time is required for the car to reach a speed of 90 km/h?

  A cart starts from res - / fj*t6 w+ongl6vzhzcqo7;st and accelerates at $4.0m/s^2$ for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of $2.0m/s^2$ for 4.0 s. What is the final speed of the car?

  A car travels at 15 m/s for 10 s. It then speeds up with a cb2u pmtd4qs-3. hb ou*zil85constant acceleration of 8dbucsiu qo5 23tl hz *m-4.pb$2.0m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocity of 1.9 m/s experiences a constant acceleration onw -;b+rtt5 pl5rl+t ; tpw-bnf $3.3m/s^2$. What is the cart's displacement during the first 9.6 s of its motion?

  A bullet moving horizontally to the ri- -spnr3e0cj q imy(j(ght (+x direction) with a speed of 310 m/s strikeen -syrpj((m30jq c i-s a sandbag and penetrates a distance of 32.09 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is launched from a catapult on an aircrvwo -a,uwen3-aft carrier. It reaches a speed of 42 m/s at the end of the u a-v-ww oe3,ncatapult, and this requires 2.0 s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with constant acceleration o: yyd. ;ulc:rc(*1nqbovqtuj(*d jjo 48p ,h cf $2.0m/s^2$ for 10 s, then travels with constant speed for another 10 s, and then finally slows to a stop with constant acceleration of
-$2.0m/s^2$. How far does it travel?

  A car goes from 40 m/s to 80 m/s in a distance of 200 m. What is its aczj(zx7g-(k b b6g1naverage acceleratiojgzc(6ax-g7b 1bn(zk n?

  An object starts from rest and undergoes uniform acceleration. Dsj(vwi 9o.)p k 9r*htxuring the first second ijt9v)s pk9x(. iwr*o ht travels 1.9 m. How far will it travel during the third second?

  An object is moving in a straight line with constant acceleration. Init 1qulv 0r tyx* n0q2f46(gamjsially it is trav*f(rmqu2qnt ys1gj xa 0 v046leling at 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 acp/ltu ,3f(af j(oel/ ncelerates uniformly at $3.0m/s^2$. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at $5.0m/s^2$. How long does it take the second car to overtake the first car?

  A car with good tires on a dry road can decelerate at4 hqt(0oq*i8 5a-ck*q w o3fq2pleiqt about $5.0m/s^2$ 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 gren3ejz +,xvvd dlw,,9 cen, a car that has been waiting at the intv,dv9,+lezcj, d xw3 nersection starts ahead with a constant acceleration of $2.00m/s^2$. 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 spe1 -xzr9xm9 hkjdgwzl (()v 97cb ;mnebed of 12 m/s on the surface of planet X where the accelerj b)e(7m-zkn1( dg99l mhxc bwr9xvz; ation due to gravity is $1.5m/s^2$. What is the maximum height reached by the object?

  An object is thrown upward with a speed of 12 m/s on 35l: om3p catwthe surface of planet X where the acceleration due to gravity is t:w o33pca5ml $1.5m/s^2$. 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 surface of planet Xp6odw q563pv n where the acceleration due to gravity i p6 ovn6dp53qws $2.5m/s^2$. How long does it take for the object to return to where it is thrown?

  An object is thrown upwa5mounvb ;u5ear p6 , (b0qqnl+rd with a speed of 14 m/s on the surface of planet X where the acceleration due ,5nrlbpn6aubu oe+5; (qqm0vto gravity is $3.5m/s^2$. What is the speed of the object after 8.0 s?

  Human reaction time is usually greater than 0.10 s. If your frie baesoh3eb4,ef: r6:rnd holds a ruler between youh:r,beo 63 a4eef rs:br fingers and releases it without warning, how far can you expect the ruler to fall before you catch it?

  A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity after4mg,dsa-k:e j:b by4 nk2rv1r 3.00 s?jb g4 -ny1kmr raev:k2b,d4 s:

  A bullet shot straight up returns to its starting po 6kks6ae5x xu8: (wkb4r9wylf int in 10 s. What is the iniuxr 9elsw65fay8kxkkb 4 : (6wtial speed of the bullet?

  A ball is thrown straight up with a speed of 36.0 m/s. How long does it dqt3,s)zt c va ts )y pymgu:dk-,---btake to ry qsv :d ygt)-m)-uackz3 ,bdt-sp- t,eturn to its starting point?

  A ball is thrown downward from the top of a building with an incyj3l8w kw-s q t5m(0mitial speed of 21 m/s. It strikes the ground after 2.0 s-5ymmj3qwcl0t k s8w(. How high is the building?

  A ball is thrown straight up with a speed of 30 m/s. (only fill in numericak-+ q) r(dbamhl value in the k -bmhda(+ r)qblanks)
(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 with a speed of 23.9 m/i h1l (lingnz un./b-/s. (use $g=10m/s^2$, 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 5 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 5.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the velocity at t = 1.0 o+ 0kb3r qc8l3dch-xu s?

  In Fig. below, what is the velocity at t = 2./e 0 sf6i i6uylakz8/-y( ijcz u55ajg5 s?

  In Fig. below, what is the velocity a9c+wldt5t3z gt t = 4.0 s?

  In Fig. below, what is the vec kbqg9q g;x i6etv:32locity at t = 5.5 s?

  In Fig. below, what isd /4bgt) lh:p)8mtc uc the average velocity from 0 to 4.0 s?

  In Fig. below, what is the average.dd ffp65j30uku3(r 3 lyen eg velocity from 0 to 6.0 s?

  In Fig. below, what is the acceleration at 1.0 s? rnzm :ap15*vi

  In Fig. below, what is thetsdac2 ocn38,qv+z3 z()pb7tf dmu, l acceleration at 3.0 s?

  In Fig. below, what is the aver-m og0h;ys h0iage acceleration from 0 to 5.0 s?

  In Fig. below, what is the average acceleration from 0 to 8.0 s?* ,oq8/ptl jpf

  In Fig. below, what is the displs )vw w(8 ercj24cmva3acement from 0 to 8.0 s?

Does a car speedometer measure speed, velocity? {svc*4px4a mmbcj2q a* i) *o-fbpeed|velocity}

  An object can have a varying speed if its velocityn wml8rw+.mi; tf( v(a**zxhr is constant.

  The velocity of an object can be negative when its acceleration iwl/pdzb9p+1/,p g y p(. dixpls positive.

  If one object has a greater speed than a second object, the first must have a g qw,lmh5 s d:ka8/sbhz995pxnreateqds mnsbl9 9ah55 zkh,w x8/p:r acceleration.

  Two cars emerge side by side from8i58dxvwxcp 6wehi z 0x:l(*m a tunnel. Car A is traveling with a speed of $60km/h$ and has an acceleration of $40km/h/min$ Car B has a speed of $40km/h$ and has an acceleration of $60km/h/min$ . Can A will pass car B at the instant they come out of the tunnel.