Suppose that an object travels from one point in space to ly.* mfe1psu4+ zxv;a another. Make a comparison between .zal*x+fues14 ;mpvy the displacement and the distance traveled.

  When is the average s1up12o1c-f/ kfybrz:a .4fjg ht6ydvelocity of an object equal to the instantaneous velocity?

  A new car manufacturer advertises that their car can go "from zerg+)b3 u kn*o vv4i2xawo to sixty in 8 s". This is a description ag*4vk w2ov)+ 3xnubi of

  An object moving in the +x qb2wjmd; 4/wy6+qty w 3qcn5 naxis experiences an acceleration of $2.0m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x direction) begins to slow down as -)n:wq,kbf ia it approaches a traffic light. Make a statemeqnk )f awb-,i:nt concerning its acceleration.

  Suppose that a car traveling to the West (-x direction)t 6dprssq:0hb o )f-+v begins to slow down as it approaches a traffic light.0s:q)rp+h6-odv s bft Make a statement concerning its acceleration.

  Suppose that an object is moving wit5mxecjv-w ff qr+d6/ vn;3/ rdh a constant velocity. Make a statement concerning -; dr +/nvqcmewd53j/vfrxf6its acceleration.

  If the velocity of an object is zero, does it mean that the acceleratio)qxw8;9-j1wix o tct qn is zero? Support your answer wixqt jwtw;81i 9oc-x)qth an example.

  Can an object's velocity change direc8a7ugo0xxbw0rn(6z f n3yx+n tion when its acceleration is constant? Support your answer with a36fz 8x rna7(b0o xn+ ug0xnywn example.

  Suppose that an object is moving with constant acceleration. Make a sta+s; brak2yy2itement concerning its mk;2 iyb r2+asyotion with respect to time.

  Can an object have increasing speed while its accelera 9c+oy;e5fb-wqmu xkti8i4 i5tion is decreasing? Support your answer with an 4-i8o iqifbxk;mcu 5+weyt59example.

  Suppose a can, after an initial kick, id h:nddi506gb ;gevqzw-(d1moves up along a smooth hill of ice. Make a statement concerning its -b5giiq 16gddhw0d v(e:zd; nacceleration.

  Under what condition is average velocity equzsnqk9 f8ps +ajb a 1w8* d;7wl9 q22obgq7hfzal to the average of the object's initial and aw82 ;dn7qql z82 zps9jgwh*kfaos1f+ 9q7b bfinal velocity?

  Objects A and B both start at rest. They both acq j*o agn0f; -rrtw2s(18xj ahcelerate at the same rate. However, object A accelerates(fg q*10-h8r;ao wstj r 2xjna 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 sammhl;z pxv t:;v1rv6l )e rate. However, object A accelerates for twice the time as object B. What is the distance traveled by object A v:6;ll1tvvpm z; h )rxcompared to that of object B?

  When an object is released from r,ojql;bxc.c 1hjwq5* est and falls in the absence of friction, which of the following is true concercxh;* qw, 1l.j5 qcbojning its motion?

  When an object is released from rest and falls in thvbee(bz)z858dabq y* y (po6fe absence of friction, which of the following is trueydb (z8*5aq vb)(y8z6b epoef concerning its motion?

  Suppose a ball is thrown straight up. Make a statement about the velocite;v d40kf2( weknt4hdj9s8mgy and t(hmj; kd98 f2egenskw04dt 4v he acceleration when the ball reaches the highest point.

  Suppose a ball is thrown straight up. What is oc. 3wnwiu+x2its acceleration just before it reaches its highestcxw3w.2 inu+ o point?

  Suppose a ball is thrown straight up, reaches a maximum height, then falls to i,no-)o4 ;er.pzje 5s5 orsfmbts initial height. Make4rr5soponz )5 -ojef, b.;sme 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 h4v1a9tl t,lnwvy) c;x x7x( rqeight, then falls to its initial height. ,nv(x7v txl1awyq ;x)t9lc r4Make a statement about the direction of the velocity and acceleration as the ball is coming down.

  Suppose a ball is thrown downward in the absence of air resistance. Make ah/ gypgmf v);6 statement concerning its accelerati6hgvf/;g py)mon.

  Suppose a skydiver jumps from a high-flying plane. What is h,0ow(xi ft,)m8sm rvher acceleration when she she reax,t m woh0,)fms(8i vrches terminal velocity?

  A ball is thrown vertically upward with a speed v. An identical sdkgjx( 5)- zo4f) nxksecond ball is thrown upward wixsjg-)kf54x on)k(z dth 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 than the first ball?)

  Ball A is dropped from the top of a building. One .oz;n(m 1rzuh8tfijeuw4 -f .second later, ball B is dropped from the same building. As time progresses, the distantz-( fn8ewzu.omr ;ufj 4.1 ihce between them

  Ball A is dropped from the-tjj+r uvvh,m8aolo ip ;41*d top of a building. One second later, ball B is dropped from the same building. A4jr*p,jvv a8- ld+ihoum 1o ;ts time progresses, the difference in their speeds

  Two objects are thrown from the top of a tall building. One is thrownze7i:+ e(xp xk(*alur 3gcds: up, and the other is thrown down, both with(duk*p:l3 +eiergx:(7c saz x the same initial speed. What are their speeds when they hit the street?

  A brick is dropped from the top of a buildinli gkc* +x+:cog. A second brick is thrown straight down from the same building. They are released at the same time. Neglect air resistance. Comp oikl*cgc+:+ xare the accelerations of the two bricks.

  An object is moving with constanjx3 zx/ 53qpxrt non-zero velocity in the +x axis. The position versqx p/rzx3j3x5us time graph of this object is

  An object is moving with constant n6m1;r wxxp8jz*yb *n15p kxakon-zero acceleration in the +x axis. The position versus timpk* jp1aw* nmx ;zx15bky 8rx6e graph of this object is

  An object is moving with constan0voiy0wq t5 2ut non-zero velocity in the +x axis. The velocity versus time graphq02yut5wi ov 0 of this object is

  An object is moving with constant non-zero acceleration qyrq1mo ssx:vs96. y9in the +x axis. The velocity verm y qx1y9sor9.q sv6:ssus time graph of this object is

  The slope of a position versus tiosu2 nd/rv)v- 2xgh -wme graph gives

  The slope of a velocity versus t z 36olww t6x)s3b*jejrj m gx5-3:alx8eow3hime graph gives

  The area under a curve in an acceleration versus time gr2ohtokh l0 ranw5;3t+2 qk0a kaph gives

  The area under a curve in a v rm , igdzscejv*k3v l7x*m4vv 934u2eelocity versus time graph gives

  If the position versus time graph of an objeca*8oild+q uc) t is a horizontal line, the object iqlud )*c +8aois

  If the position versus time graph of an object is a vertical line, the obdsz 0thfwt(k68i9p +gject isft h(9+z 0t 6skpidg8w

  If the velocity versus time graph of an object is a horiz1 qe+ atkp-d4wlhn1r 8ontal line, the object eq8ar1dw h-1+tkpn 4 lis

  If the velocity versus time graph of 8j+a;a5n sdda5 . .l0h.;e mkrrblexban object is a straight line making an angle of 30 degrees ;.a .d5m0kl.;5dxe e+bl r8hjbnsr aawith the time axis, the object is

  An object moves 15.0 m north and then 11.0 m si d6k1k(*nzh couth. Find both the distance traveled a(h kczk*6 d1nind the magnitude of the displacement vector.

  A boat can move at 30 km/h in still water. How putz+z-l+ 5oz-zj8t8o gfe*v long will it take to move 12 km upstream inuv+z+8t5g*jzt z -- o8loepzf a river flowing 6.0 km/h?

  55 mi/h is how many m/s? (1 mi =mm)(h0r dbzn: 1609 m)

  What must be your average sp f*m/gjzcb31q.8tq4 sf,bpo rmj /i+ beed in order to travel 350 km in 5.15 h?

  A runner ran the marathon (approximatelytxuephnjy3 g,f:px*jnk 0;ro -)6ek1 42.0 km) in 2 hours and 57 min. What is the averaerh6 p to-ne 0),*f xuj k:y3njpgkx1;ge speed of the runner in m/s?

  A car travels 90 km/sjj)4o44dm0t7gb c9 et ix qh5h. How long does it take for it to travel 400 km?

  A ly (light year) is the distance that light travet*tg c(ihm2f+ ls in one year. The speed of lit(*ci+2t hgfm ght 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 rixo*s9gqvi7w s.q4i r+p24d you look to the side for 4.0 s, how far do you travel duriqo2i9* wrgp4is 4 .+qdivs 7rxng this inattentive period?

  If you run a complete loop around an outdoor track (400 m), in 100 s, yours:b(r /x mg bh-2js5ln averagb( sg/-2:5 rhjx mslnbe velocity is

  A polar bear starts at the North Pole. It travels 1.0 km south, thend2wqbm-wfjh *x vnfo6n6 - w;4 1.0 km east, then 1.0 km noro4n ;vf 2d- nwwb*66wmf -xqhjth, 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 it68d0 5bv fny 3gm4mlat 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 staml4i 6dm vt53fy g8nb0rting point. This trip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend from school at 5k 3ua 9t+ gmsqwymhlt+ **4*hc5 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 minut u 4l+*g3tky qs*mmah*+wch9tes. How far is your hometown from school?

  A motorist travels 160 km at 80 km/h and 160 km at 100 km/h. What ipai;0ep f*lwt* xhi:2s the average speed of the motorist for thi;f0pexh:2li pt*i *was trip?

  A motorist travels for 3.0 h at 80 km/h and 2.0 h at 100 km/h. What is her ave9prp )p(jpx(pr ir/z jyl/8i)1f qx.vrag(rp/lpjvx p)if y ppirzx9 )j8/1qr. (e speed for the trip?

  An airplane travels at 300 mi/h south for 2.00 h and then at 250 mnp d:y3xg e.el z(ljai03/eqvl8 0 j(ii/h north for 750 mi0(agj0e3:8 zex.ldynpe(i3vl /q i ljles. What is the average speed for the trip?

  In a 400-m relay race the aio bby4 wm()5jnchorman (the person who 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 largest lead the team B runner can have when the team A runner starts the final leg of the race)5bjyw(i bm4 o, in order that the team A runner not lose the race?

  A car decelerates uniformly and comes to a stop after 9 s. 7 vxg/+2uosc *1sfjk r The car's average velocity during deceleration was 61 km/h. What was the car's dc s+ jov*2s1 7fux/rkgeceleration while slowing down?

  An airplane increases imcn 6qo9h/jh/m 8,ghr ts speed from 100 m/s to 160 m/s, at the average rate of h ch/orj/qh 8n9 g6m,m$15m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelu:i1g avvh m+8 -xkth8;cp )sherates at the rate 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 rest and acceldwjj0zu7ei wd)5 rj9b uy)8 7lerates 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 constant accelps/) g69udxvqeration vs6ud)/x p9qg of $2.0m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocity of 7.5 m/s experiences a constant accelera(d 53b1y2teqv jab6r6 2b-qkwv) fgwztion of btb3d- wbze yavv5k2()2g6f6wq1 q rj $1.7m/s^2$. What is the cart's displacement during the first 7.0 s of its motion?

  A bullet moving horizontally to ths71ko*vdz/uf,ffy ) t;f ct; qe right (+x direction) with a speed of 503 m/s strikes a sandbag and penetrates a d, d; 7zfy;v1s*/ff)ttfcukq o istance of 69.15 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is2k3n;.t 4hj-tbmd hgfuh8+np launched from a catapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requireshbt3 8n-dm4h fnuh2+ kpj.;gt 2.0 s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with 749ztbfskw0 d+h 0dfv,ojjz 4 constant acceleration of $2.0m/s^2$ 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/sxugqopq8 c ja2u:;klumz: e31 +)miw0 to 80 m/s in a distance of 200 m. What is its average accele3 meqk18g:pxcju) mulaiu: o2+ 0z wq;ration?

  An object starts from rest and underxzsp 8 7q(bfqor83,o vgoes uniform acceleration. During the first second it travels 1.1 m. How far will it travoqfr vb(3,8z7xq8po sel during the third second?

  An object is moving in a straight line with constanqvoclm j; /t*;t acceleration. Initially it is traveling at 16 m/s. Three sq /; jclto*v;meconds later it is traveling at 10 m/s. How far does it move during this time?

  A car starts from resu4fd idk2d -t:t and accelerates 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 at xo.u5mwel rzxbe.:/94e6d llabout $5.0m/s^2$ 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 green, a car that has been waitinghc. *g0icxeo o24l5la at the intersection starts ahead with a constant accelericaohe x02g * o4.5cllation 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 speed of 12 m/s on the surface n 2rk8abp phcwg+5 l83of planet X where the acceleration due3+pb crl 25nw kg8pha8 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 the surface of pl73w gh+owk 7bqwnoql:k 3bs,;anet X where the acceleration:bs bk7l+3 q, gok;ow7w wn3qh due to gravity is $1.5m/s^2$. How long does it take for the object to reach the maximum height?

  An object is thrown upward wi3bj rq 23es5,c hb*nnt*f6wufth a speed of 15 m/s on the surface of planet X where the accele53*ue,h t s62ncfw*r b n3fqjbration due to gravity is $2.5m/s^2$. 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 6ib75* w -c3nt *u-elmrzej;c b3pt ulsurface of planet X where the acceleration due tc n533;eb7rpe--l*c6j * lb twu miuzto gravity is $3.5m/s^2$. What is the speed of the object after 8.0 s?

  Human reaction time is us6 05 r.n5vn4d lqnzlza3ngw+p ually greater than 0.10 s. If your friend holds a ruler between your fingers and releases it without war z53lvn q5 nn+zgn0p4.rd6wlaning, 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 its8wov;z +dl a3q velocity after 3lqo8; wva+z3d .00 s?

  A bullet shot straight up returns t.63rj-bh.bu5h -f lqixs+gvds) eku6o its starting point in 6 s. What is the initial speed ofls 6fi hu.vrb-kh). x+3q6gj5ue-db s the bullet?

  A ball is thrown straight up with a speed of 36.0 m/s. How long do hjnm(h39qy:gcpzj) ) es it take to return to its startiz9hqp : c)g3j)ymhn(j ng point?

  A ball is thrown downward from the top of a building with an initial speed of ts4s5 muxz(xb /3 j:lg10 m/s. It strikes the ground after 3.3 s. How sz/s5:b( x gmu34jt xlhigh is the building?

  A ball is thrown straight up with a speed of 30 m/p5y7 rojk+iq;s. (only fill in numerical value in the blan5y+j; q7 kiproks)
(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 straig x.zvsp u xq2ws6qx+65ht up into the air with a speed of 37.4 m/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 3 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 7 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 7.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is themozh r(lzb m7 0y8.e1p velocity at t = 1.0 s?

  In Fig. below, what is the velocity atd7;s qg9;nx1amuuq 4,;ff ;lfed /rzo t = 2.5 s?

  In Fig. below, what is the v4hl)astj ;dx 4elocity at t = 4.0 s?

  In Fig. below, what is the vehyz*(ra7n k/ n we(pj+locity at t = 5.5 s?

  In Fig. below, what is the average velocity 9ic4r2x*lkcu+2vv:lrw9g j 3 l oes,dfrom 0 to 4.0 s?

  In Fig. below, what kxzn a1/9m;rsis the average velocity from 0 to 6.0 s?

  In Fig. below, what is the accelerwgarz p16c.+s 1h1h eeawvf;4 ation at 1.0 s?

  In Fig. below, what is* l aykncr. nn,49qiu2*s4ok d the acceleration at 3.0 s?

  In Fig. below, what is the avera8fmib zj g;z9 lv17;qa- cy,fkot 6a*tge acceleration from 0 to 5.0 s?

  In Fig. below, what is the average a+s6riaqj7 c6ccceleration from 0 to 8.0 s?

  In Fig. below, what is the ds ;e 3as 0qb.ygz.eq-jisplacement from 0 to 8.0 s?

Does a car speedometer measure speedpve2x+ths- t(2a j/i*zn3k9hqu *p3 kpdgq-i, velocity? {speed|velocity}

  An object can have a varying speed if itun,(rk,r phyie* ,s5 ps velocity is constant.

  The velocity of an object can be negative when its accet42+ru o u1gjifpk e.7)jmci2leration is positive.

  If one object has a greate36j 1puu:ry8 ..yyiwkq axu-p r speed than a second object, the first must have a greater :upy3u.u -xk8r ip1 .yqjway6acceleration.

  Two cars emerge side by side from a tunnel. Car A is traveling with a spee rcc34j17m9is 0 r n)cw8bdnqi9u+n byd 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.