Suppose that an object travels from one point in sp, l-q2+ktklshace to another. Make a comparison between the displacemen lsq-k+h2 ,tlkt and the distance traveled.

  When is the average velocity of an objq (1af 83n zutj/.zfaoect equal to the instantaneous velocity?

  A new car manufacturer advertises that their car can go "from zero to sixtyp60.;wyc nyfu1zt3ex in 8wyyu 0 ;6nxfp1 3t.ecz s". This is a description of

  An object moving in the +x axis experiences an al99x l fv0prj+cceleration of $2.0m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x direction) beg ew1;io2 / a7*frmvq8igb/ni gins to slow down as it approaches a traffic lig;8r* o bmgnf1i2iw v/ a7e/gqiht. Make a statement concerning its acceleration.

  Suppose that a car traveling to the West (-x direction)ufue1e5zypcllg7uc9wx7 2 ; i:,t/en begins to slow down as it approaches a traffic light. Make a statement concerninngwx2 u9f,;7 ete7p ccuz/ :5liyl1ueg its acceleration.

  Suppose that an object is moving with a tfobwg+y*g) 0 constant velocity. Make a statement concerning its ac g fwygbt)*0+oceleration.

  If the velocity of an object is zero, does it mean that thobos:ee,:8ape ,v)zwcf 0p 0ke acceleration is zero? Support your answer with an examfe:0co, 0 ,p )b8vsweapok:ezple.

  Can an object's velocity change mhcb336y000a b t e 8wvz:zkmxdirection when its acceleration is constant? Support your an3zym mtb0x3a 80 zh6vew:b0kcswer with an example.

  Suppose that an object is moving wmunaban8q q 8ey9tq td:*is0( 8cc k,8ith constant acceleration. Make a statement concerning im *:dbn at(kye088 sq q a88,qntucc9its motion with respect to time.

  Can an object have increasing speed while its acceleratioe0,se9jbzgt , n is decreasing? Support yousj tg,0e 9,bezr answer with an example.

  Suppose a can, after an initial kick, moves up along a smooth h,r ue5vlz-.ud y dy(s0ill of ice. Make a stu(dev . uzy, ys0r-5ldatement concerning its acceleration.

  Under what condition is average velocity equal to srf(-44l*rp* lxwe ghcv5f0dthe average of the object's initial and final velocity?fg0r*fdsw54xc- *herl (lv 4p

  Objects A and B both start atoow7dm0 il7 z* rest. They both accelerate at the same rate. However, object A accelerates for twice the time as object B. mzowdl*0 7i7o 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 saor oitqtnu74up1* 4b+ me rate. However, q1uor4*tio+7u 4t bpnobject 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 relem9efy gw+ironx8 u4m36obr; 2ased from rest and falls in the absence of friction, which of the following is true concerning its moti 4r nwbg3m8f96y;+om eir2oxuon?

  When an object is relyjd a;4cxgsn,/ 8g )laeased from rest and falls in the absence of friction, which of the following is t8 gl,g; aasxd)yn cj/4rue concerning its motion?

  Suppose a ball is thrown straight up. Make a statement about the velocityzum*1f5g pnskxwfq41.xc91 k and the acceleration when the ball reaches c fkxmu1n wx1z *f s.gpqk4195the highest point.

  Suppose a ball is thrown straight up. What is itq0j79jez4 l r:un/lyzs acceleration just before it rez0j r uq9y4e ljz/7:nlaches its highest point?

  Suppose a ball is thrown straight up, reaches a maximum height, then falls to dv9b0z6e k oovn8 1,jqits initial height. Make a statement about the direction of the velocity and acceleration as the ball is going up.80kv j6zo9nv,doqe 1 b

  A ball is thrown straight up, .tw 50 (gdbolareaches a maximum height, then falls to its initial height. Make a statement al(b5aw t.o0gdbout 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 a d qvuzhcd+1/bn -(h 2th ).1 *qbhqxacstatement concerning its accelehuh2+cch .ta -qhb* q(bd vqzn)x1d/ 1ration.

  Suppose a skydiver jumps from a high-fly2 h)wu t61r .zfk qgu.v8kxe/ving plane. What is her acceleration when she she reaxf 2.8) tr6kq1/kwhvu uze.gvches terminal velocity?

  A ball is thrown vertically upward with a speed v+ 1- sd6tb1oat9o6 r4cqgn bcn. An identical second ball is thrown upward with a spq 64g+n 96n-catbdoto r1sbc 1eed 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 secw8- e2p() i zu4plgnbaz :u-aaond later, ball B is dropped from theng48-2l a:u pu(zapa-iebw z ) same building. As time progresses, the distance between them

  Ball A is dropped from the top of a building. One second later, f(hg e9t;n* )5kxazml pc n4+pball B is dropped from the same building. As time progresses, the diffe9apt;lmn+(e g*k hfxz)4np c5 rence in their speeds

  Two objects are thrown from the top of a tall buildinztm t7;wp j5spnolj*,5x i )wph1 m;8rg. One is thrown up, and the other is thrown down, both with the same initial speed. What are their speeds when they hit tho 75r jt;xww)p t si*nh81plmm;j5zp ,e street?

  A brick is dropped from the top of a building. A second brick is thrown strai7(pox ,zjtc32 0vhn,br;nhe tght down from the same building. They are released at the same time. Neglect air resi2(v xcr7 njptz enh,; t,bho03stance. Compare the accelerations of the two bricks.

  An object is moving with constant non-zero velocity in the +x axis. The positjf lr+gj x u1zwd8o/+0ion versus time graph oj0x f/+rd+o8glz1jw u f this object is

  An object is moving with constant non-zero acceleration in thex+91fl, a- uy;xx b4yhobzkq-n i-9c z +x axis. The position versus time grlu1y- ,fbz-a y-z 9ix x9h;4xcnb+k qoaph of this object is

  An object is moving with constk. d5:k a3lcgmant non-zero velocity in the +x axis. The velocity versus time grak 3cg kd5ma:.lph of this object is

  An object is moving with constant non-zero acceleration in the +x axis.gdawt ,j3d ad (j5-yy,amk/ d* The velocity versus time graph of this object isd,kawdyda,- (m yj/a* 5td3jg

  The slope of a position versus time gry3bd*tlpry0 8 aph gives

  The slope of a velocity versus time gfzydis 2gh*526 fop8eraph gives

  The area under a curve in an acceleration versus ti.v8zzorlk1c 7me graph gives

  The area under a curve in a velocity versus time gr 8f5d 6xb:tj2blt(ao w sl94qpaph gives

  If the position versus time graph of an object is c 1/dj- h(:fxy*ambylo8 sk/r a horizontal line, the object i8jcsbkrm(d/:yhx l/1 a* yo-f s

  If the position versus time graph of an object is a verti1nuu.38svlcyo g4.r ncal line, the object isnr u4.sly .v o31ucg8n

  If the velocity versus time graph of an object is a horizontal line,0ih(zoljt-alvi. ( 8 p the object ip.0zi8t( oj(h i llv-as

  If the velocity versus time graph okomu9bc54 (fp3)m8a l y. pzagf an object is a straight line making an angle of 30 degreec8)3 fb(l yzp g54oam9kum.a ps with the time axis, the object is

  An object moves 15.0 m north and then 11.0 m south. Find both the dise)dn *e cpl:1(dh zin-tance traveled and the magnitude of the displacement vectorepn*-nz e: () 1dihdcl.

  A boat can move at 30 km/h in still water. H0km6 om- kye*zow long will it take to move 12 km upstream in k me-mz6y ko*0a river flowing 6.0 km/h?

  55 mi/h is how many m/s? (1 mi = 1609 mv27cz yh3 nnz*)

  What must be your average speed in order to travel t htba12q*gx9 350 km in 5.15 h?

  A runner ran the marathon (approximately 42.0 km) inj0. ef0osnzy, 2 hours and 57 min. What is the average speed of thn.0z0s , jeofye runner in m/s?

  A car travels 90 km/h. How l;9:jktvu gw t7ong does it take for it to travel 400 km?

  A ly (light year) is the distance that light travels in one year. Ta1a1,tl1 psv+/mbykp he speed of light ala1/s ptyvkb1, mp1+ 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 fohh qjyl12ioik)6a1jw0zp(j6 r 4.0 s, how far do you travel during this inattentive peri 1)aj1hlhiqz0ij6yk( wop2j 6od?

  If you run a complete loop ar rvrg9z)lz38 round an outdoor track (400 m), in 100 s, your averagzzl3r v)r89rge velocity is

  A polar bear starts at the North Pole0 ;rdfl jl* qqzvqk/x(t6 grco-v**7o. It travels 1.0 km south, then 1.0 km east, then 1.0 km north, then 1.0 km ko7vl/*qg to-q 6rq;r*c(z d0fv* jxlwest to return to its starting point. This trip takes 45 min. What was the bear's average speed?

  A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 kmx wzf( 9cfi.(z 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 bear's average velocc( fxz9w (i.fzity?

  You are driving home on a weekend from school at3fk- *(qh+(zv0onmwp pqsno ( 55 mi/h for 110 miles. It then starts to snow and you slow to 35 mi/h. You arrive home after drivin zopn (q0s-okfqhm p(v+3w*n(g 4 hours and 15 minutes. How far is your hometown from school?

  A motorist travels 160 km at 80 km/h and 16f22xgd n,y78uqfs5v v 0 km at 100 km/h. What is the average8 5n2fxqydvs,fgu 2 v7 speed of the motorist for this trip?

  A motorist travels for 3.0 h at 80tp wz7/+da5xei, qqj:tpup .9 km/h and 2.0 h at 100 km/h. What is her average speed fordqu:qw9 eazt+j t 7px/5i p.p, the trip?

  An airplane travels at 300 mi/h southm7 urmfj p .*)o iuo)1 iii,c6n/k6ckm for 2.00 h and then at 250 mi/h north for 750 miles. What io/i ), jc)o67iprmucf1u*6 n k mmk.iis the average speed for the trip?

  In a 400-m relay racewziym+gqj/r;i 5l1g0 the anchorman (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 10 5/zrljwm+igi qgy 1;00 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 uniformly and comes to a stop after 8sslej6574ao7f2 dkoeb q wu54 s. The car's average velocity during deceleration was 64 km/h. What was the car's decbu5e4 ja6l52koe7wqo dfs4s7 eleration while slowing down?

  An airplane increases its speed from 100 m/s to 160 m/s, at the average rate a25nilni7yxitc znn+9)k p -1yd;;r bof dn+)r n7 tix y1;;l2innyzk5 ac9i pb-$15m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/hz:l - s -tuadc5v /+n;wli/m0af rd0it accelerates 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 accel tvq i.8d8vc2foor4zmaw+ p80erates 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 -jb-5;,ywb 5bpk 1crfzo 6ivdthen speeds up with a constant acceleratio ofrb6bp -dzc5,wv;1y-k5bji n 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 1.9 m/s experiences a 8 3qyy7/2tjo9pc4 ero iy3vyqconstant acceleration op y 9 33coyv4yeo/t7ijy2 qrq8f $2.7m/s^2$. What is the cart's displacement during the first 6.1 s of its motion?

  A bullet moving horizontally to the right (+x direction) with n -tiyf:*w8kq 963didjfkcc7 a speed of 365 m/s strikes a sandbag and penetrates a di9dt cc37qj wfiyk8f: *6ni k-dstance of 63.29 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is laug 2ohvp/ij2th6j ,;xdo a/ 7dtnched from a catapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this2h6 jv;jxtd2idto ,ghao/p/7 requires 2.0 s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with gz4jstscf ei;,yh*/5*tm + vp 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/s to 80 m/s in a distance of 200 m. What i9 pp22w jmtv,.xpi,pj s its average acceleratio9, mt2jp.2jipwv x ,ppn?

  An object starts from rest and undergoes uniform accelerati u h; mahyop*x .0gmipr4w8-(ion. During the first second it travels w mpxi *h;ia 0 .uo-4hmpg8yr(6.2 m. How far will it travel during the third second?

  An object is moving in a straight line with constant0 , br wpyr);rjclfif1 -qyv86 acceleration. Initially it is traveling at 16 m/s. Three seconds lateb;fr8 lj6 irvqry-p,wc0f )y 1r it is traveling at 10 m/s. How far does it move during this time?

  A car starts from rest and acce 3tx aaz iynu41l;y-l4lerates 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 cah/xa 2tai+rx;pc3zen8j5 oyhbln* 36n decelerate at 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 green, a car *:7 i9sdd g3h dvadf4nthat has been waiting at the intersection starts ahead 9 *sdd didh:agv3 f4n7with 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 speed of 12 m/s on the surface of planet + bfqic1 o, oumv1x/+iX where the accelbmoi v +/1,u f+oicx1qeration 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 the surface of planl*yhz m6j 31hset X where3jh m lhyz*16s the acceleration 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 with a speedfmo 8)gy;u3vldd9 ud ; of 15 m/s on the surface of planet X where the acceleration due to gravity8 dlmdf3uy) 9 ;d;uogv 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/s7p(8rp 5q8-dtqlzvm )f1b z loc++ sde on the surface of planet X where the accele+5or dfqz-)v8s bc8(qplld 7+ 1t epzmration due to gravity is $3.5m/s^2$. What is the speed of the object after 8.0 s?

  Human reaction time is usually greater than 0.103ub/a 7 2ta/rq wigh*t s. If your friend holds a ruler between your fingers and releases it without warning, how far can y3rb 7*q//ta hgat uwi2ou expect the ruler to fall before you catch it?

  A ball is thrown upward at a velocity of 19.6 m/s. +w tecao2ke:h.ntk9*qn 7t- nWhat is its velocity after 3.00 snqh.ca on 2te: k*tnk97et+w -?

  A bullet shot straight up return7ym)6yowi5 p ks to its starting point in 15 s. What is the initial speed of th kyip6)w75y ome bullet?

  A ball is thrown straight bo4bt g1iej;-up with a speed of 36.0 m/s. How long does it take to return g;bj 1beo4ti -to its starting point?

  A ball is thrown downward fr)b wt;k)q)f3cabk4 h mom the top of a building with an initial speed of 29 m/s. It strikes the ground after 1.6 s. How high is thea bc)kfwbq43t hm; ))k building?

  A ball is thrown straight up with a speed of 30 m/s. (only fill in g m2gal)o bvckh+0g65numerical value in the bla0+ 6mgav hl5c)g ogb2knks)
(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 a0 ( ;u1-(cjdpu ceu3dxr lf*fs speed of 31.8 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 2 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 8 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 8.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the velocity at t ,*bps4iy0vrt = 1.0 s?

  In Fig. below, what is the vtrpz f*wb5swb8))90t3 advmcelocity at t = 2.5 s?

  In Fig. below, what is the velr1 1dalfs tq78ee/i7kpv/ l. xocity at t = 4.0 s?

  In Fig. below, what is the velocity at t = 2/m vs/8 jmwz 8bv;akw5.5 s?

  In Fig. below, what isuep h9d cl(8izr0(j7f the average velocity from 0 to 4.0 s?

  In Fig. below, what is the ave2- wd-aewfw.0n4ho+pmv i w7krage velocity from 0 to 6.0 s?

  In Fig. below, what is the acc3i wx*hjt4zs9eleration at 1.0 s?

  In Fig. below, what is the acceleration ator ,7 n1n7rsvt 3.0 s?

  In Fig. below, what is the average acceleration from 0 t ngf/z*6w )nnjo 5.0 s?

  In Fig. below, what is the tcyblwi wgf-6nfxb8*,8.7mwf/ 2vte average acceleration from 0 to 8.0 s?

  In Fig. below, what is th/-gg4kt/ro ,- *twntd jgq vz ,0hou+ve displacement from 0 to 8.0 s?

Does a car speedometer measure speer5 bi2bmdu. ikh r-r80d, velocity? {speed|velocity}

  An object can have a varying speed if its velocitdj 2.x x c33bw9heqx 9il-v;(n8cauugy is constant.

  The velocity of an object can be negative when its accezgw .*: c;qz c0i2fzlcleration is positive.

  If one object has a greater speed than a second object, the fi6 :(mnp;a dltqrst must have a greater accelerat(l ;ndp aqmt:6ion.

  Two cars emerge side by side from a tunnel. Car A is traveling wi9h , plpfnw/u8th 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.