Suppose that an object travels from one point in space to ac pxg s3ols+16nother. Make a comparison between the displacement and the dis3ol61g sc+ sxptance traveled.

  When is the average velociu-t c6gbq/(cq -t4 hbjty of an object equal to the instantaneous velocity?

  A new car manufacturer advertises that their car can go "f4 ex )u+twmki(rom zero to sixty in 8 s". This is a des4w(kui e tx+)mcription of

  An object moving in the +x axis exper lzc8ht,sic7 r3 39 4oexa11ruqgvhu, iences an acceleration of $2.0m/s^2$. This means the object is

  Suppose that a car ttq xbcgjd3v4*drj 5 t2g39f0zraveling to the East (+x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.j tjdftc3d2045 x9*bg3grqvz

  Suppose that a car traveling to the West (-x 3euo piq 06,vjdirection) begins to slow down as it approaches a traffic light. M pe6i03v uqj,oake a statement concerning its acceleration.

  Suppose that an object is moving with a constant velocity. M*jtk-oko1gn7 dz*aoz py2 m-+ phl1l*ake a statement concerning its ackl1j1l- t2 7yp-od o*ponmzha**g +zkceleration.

  If the velocity of an object is zero, does it mean that the accelz-djefh)k w ,5jwdnxh6ot/+ -eration is zero? Support your/ jd)wfdw 6-e -5oh,h+x nzkjt answer with an example.

  Can an object's velocity change direction when its acceleration is constanttqtkrt c0ib+(m pf4d 8:)3a au? Support your tbpi3: qttk8 arfd0cm4+)au( answer with an example.

  Suppose that an object is moving with constant acceleration. Make .bouj +oe duc5dnr2q5h*d1 k3a statement concerning its motion with respect to do c51ndobdq*ur+ h3 ke25uj. time.

  Can an object have increasing speed 3-wxr87hb ,oi-q*jw /g/c8eaomegxiwhile its acceleration is decreasing? Support your answer with a7icx oq3*iwe h 8/ow,bg-8amejxr-/ gn example.

  Suppose a can, after an initial kick, movesxhvx 1vs -z79c xi+z jfo6,wd6 up along a smooth hill of ice. Make a statement cosw- oh+6 vx6xzf,x 17c9vz idjncerning its acceleration.

  Under what condition is aveh:qs/eur : j9 0ojyoo-rage velocity equal to the average of the object's initial and final velocit y/jo:0j- :o sre9quhoy?

  Objects A and B both start at rest. They both accelerate,)k 8tys wq 9c7mihzu4 at the same rate. However, object A accelerates for twice the time as object B. What is the final speed 4,mkc7u9 iy )hwzs8tqof object A compared to that of object B?

  Objects A and B both start from rest. They b e;koqfa.y(y-y0c j x5oth accelerate at the same rate. However, object A accelerates for twic f.-ox( ajyek;yq05yce 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 66qk e ,jwgbq)and falls in the absence of friction, which of the following is true concerning its mgk6 ,6wjb)eq qotion?

  When an object is released from rest and falls in thekvn8 uvrlm6u z4 :9ar: absence of friction, which of thezvuk6m l498 a rrn:vu: following is true concerning its motion?

  Suppose a ball is thrown straight us(j-9b t :vymmp. Make a statement about the velocity and the acceleration when the bavj:mb 9mt -s(yll reaches the highest point.

  Suppose a ball is thrown straight up. What is its a0e.lhvqo 6d 9acceleration just before it reaches its highest pod. q0valeh96 oint?

  Suppose a ball is thrown straight up, reaches a maximum height, then fkb ep*yz)3)mh alls to its initial height. Make a statement about the direction of thezh ))meby3k*p velocity and acceleration as the ball is going up.

  A ball is thrown straight up, reaches a maximum height, then falls qz-pmka35)) amj3kqd to its initial height. Make a statement about the direction of the velocity and accelera 3kadkpq j-z qmm)a35)tion as the ball is coming down.

  Suppose a ball is thrown downward in the absenasbww l*+ d5d zyzng9+6kh3 .rce of air resistance. Make a statemen. s+ l+y z*39wgzbd 5h6wdarknt concerning its acceleration.

  Suppose a skydiver jumps from a high-flying plane. What is her icc1ua hz *nqnd x1*4:acceleration when sq*1*hnn1cdz ca iu:4 xhe she reaches terminal velocity?

  A ball is thrown vertically upward with a speed v. An identical self;jgiq7+ xvm* x+2 whcond 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 timx++v qxh*g fi mj7;lw2es higher does the second ball go than the first ball?)

  Ball A is dropped from the top of a buildin ;(5/ct) r)xg0 yo/qxxw3nm9igqac rqg. One second later, ball B is dropped from /r 5ctqax gxcqmqn0w iro3()x/9 y g;)the same building. As time progresses, the distance between them

  Ball A is dropped from the top of a building. Oneus;n)zyz zg ;(20x ubb second later, ball B is dropped from the same building. As time progresses, the differenszgb bzu;zu)n ;x(2 y0ce in their speeds

  Two objects are thrown from the top of a tall building. One is thrown up, andqbrh wa5: g/ nnodsmtiz8,.3( the other is thrown down, both with the same initial speed. What are their speeds when they hit ,za5s w donm/b .83gnrq( ith:the street?

  A brick is dropped from the top of a buhs2(/7 vsg*/x3 m-dcq hsvkkxilding. A second brick is thrown straight down from the same building. They are released at the same time. Neglect air resistance. dx ks h*s3c2x vqm/-v/(k7ghsCompare the accelerations of the two bricks.

  An object is moving with constant non-zero velocity in ti8(yj, n h lnfafg3ue4l-z bp1 ,a-m/nhe +x axis. The position versus time grfza4n(ua ,n3fh/ l g,jmpl yn-ib -81eaph of this object is

  An object is moving with constant non-z4 .wi+ /dvu,v:tzdt*ago gjhx2 w2+pc ero acceleration in the +x axis. The position versusph g+a vtu+ 4co /zd2v2.tjw*w,:ixgd time graph of this object is

  An object is moving with constf/r,)rvtxfhl,5 * c+ve4jcid jf: k p+ant non-zero velocity in the +x axis. The velocityd,5f+k c+ )jj,pvfc thilv/ fexr4*: r versus time graph of this object is

  An object is moving with constant non-zero acceleration in the +x axis. The vej1*b;pi/sky v gopz69 locityoiz6/j9p p y;kgbv 1s* versus time graph of this object is

  The slope of a position ve 3f o, ;s)3vexx(3h szio j5xd7nk*txxrsus time graph gives

  The slope of a velocity versus timc*v/. ;d(- gz m qamtfj-dg3qoe graph gives

  The area under a curve in an acceleration versus time j7ento ;c4pi -graph gives

  The area under a curve in a velocity versus time g) 4eewto784ad1nz ex draph gives

  If the position versus time graph of an object is a horizony7 eyw) cof:uwbw4 /h1g9l(p0y ,i kcatal line, the object is4b/oywgu: p(ewc9 ylwi)f ,y c 1ak07h

  If the position versus time graph of an object is a vertical line, ezigb.z o:zlgl-v 8 6k85vk7sthe object is-k z7v58bv:zol .ek 6zlgig8s

  If the velocity versus time graph of an object is a horizolfa;1e9m yvw pm/05gdn3tvn ;ntal line, the object ise;5n3vp ;an/gy0w d9v ml1ftm

  If the velocity versus time graph of an object is a straight line making a; w31hqdwe;c +ijfy/an angle of 30 degrees with the time axis, the oajq 1c dh/e3f+;;iwywbject is

  An object moves 15.0 m north and then 11.0 m south. Find bn)0+s ,*sl-8x0 ercutrsaf deoth the distance traveled andc)-fetx0sn lrse+r ,a0 8d*su the magnitude of the displacement vector.

  A boat can move at 30 km/h in still whm6l a4y s3d+*oj4u ywater. How long will it take to move 12 km upstre+ 64lysw3myau oh *j4dam in a river flowing 6.0 km/h?

  55 mi/h is how many m/s? (1 j q s/q3iz9phkm yl+7v3xe20nmi = 1609 m)

  What must be your average speed in order to trav 2kcg. sy,eui)el 350 km in 5.15 h?

  A runner ran the marathon (approximately 42.0 kmn(4ge3tmm9b 9 tgnui: ) in 2 hours and 57 min. What is the average speed of the in(gmb 43e9t:tm u9ngrunner in m/s?

  A car travels 90 km/h. How long does it take for it to tra y*/dgm7j8ag dvel 400 km?

  A ly (light year) is the distance that light travels in one year. The speew 7ke) b4p:j/rlsg*dw d6yz- dd of ligp)ddjd7-z/r 4 e wylw: *b6sgkht 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 7f bg)h*z./k on2 km/h along a straight road and you look to the side for 4.0 s, how far do you travel during this inattenzohn*g. bk/ )ftive period?

  If you run a complete loop around an outdoor track (400 m), in 100 gzllk255a .;j(jx ekos, your averag;(kae2xl 5oz. jjg 5lke velocity is

  A polar bear starts at the North Pole. It travels 1.0 km sjm6eryt1yb0 3j k-n+aouth, then 1.0 km east, then 1.0 km north, then 1.0 km west to return to its starting po0 nj3rk+ tyb-e1amy6 jint. 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 southvw 8mtk;9mg(c, then 1.0 km east, thev;9m k8mg(cwt n 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 velocity?

  You are driving home on a weekend from m 3rer( g0l)p(iy:sckschool at 55 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. (yimpr3(g0lser)c:k How far is your hometown from school?

  A motorist travels 160 km at 80 kt fu6y(z4+s3( sc3ay w-w giiwm/h and 160 km at 100 km/h. What is the average speed of the motoriizwifs3- a(+yy(g w6w t4uc3sst for this trip?

  A motorist travels fomj-81ddg. q3 v-srh yer 3.0 h at 80 km/h and 2.0 h at 100 km/h. What is her average speed for tdevh1mgs 3drj-qy-8 . he trip?

  An airplane travels at 300 mi/h south for 2.00 h and then at 250 mi/h yf rd6ms*un)vz,-o; d north for 750 mdm;s* 6nd)ozy u-f, vriles. What is the average speed for the trip?

  In a 400-m relay race the anchorman (the person who runs the last 100 m) for n5 7wzos8lygu.zi,9 b team A can run 100 m in 9.8 s. His rival, the anchorman for team B, canlzwngo,8 i 5 usy9.b7z 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 uniformly and comes to rgj vp1ybd5fdv 4+.(q a stop after 10 s. The car's average velocity during deceleration was 62 km/h. What was the car's deceleration while slowin4d1fg+ j.ypr q5vvbd( g down?

  An airplane increases its speed from -w74gzxv3fr3u i3how6 ry nlzq 6v ;/b100 m/s to 160 m/s, at the average rate of br636wyxl-/ wrv 3 3vgoq nu7fzi;hz 4$15m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at the rate olb vaacj9sjb +:;;k/ af $2.0m/s^2$. How much time is required for the car to reach a speed of 90 km/h?

  A cart starts from rest and accelerat.sdieu:t+cx -p-qxrpux (,8 f k1;ilces 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 tm6 ev rvc s1 c;ncek4*2ssoc398ey-uhhen speeds up with a constant acceleration of c4vycee1 -* 9vrc2ossun3; ec8h6msk$2.0m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocity of 1.7 m/4eq-n )5pd9i ).go;hc8jsgikai4isus experiences a constant acceleration oip 4ko g89 h-4sqing)5ei) uadji;sc. f $1.4m/s^2$. What is the cart's displacement during the first 9.6 s of its motion?

  A bullet moving horizontally to the right (+x direction) with a speeu 4+qq icn+b u1m3wb4rd of 242 m/s strikr1qm+q u3ni44ubb w c+es a sandbag and penetrates a distance of 68.90 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is launched from a caj-iz* d/r bgddzu3 2ug/tf28w tapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0 s. Assuming the acceleratjdz iuz2d8//dg* bg 2w-fu3rtion is constant, what is the length of the catapult?

  A car starting from rest moves with constant acceleratiafi e*;p (nqd3e 6 mpz (*ub1cww f:4.al3hctyon 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 is its average mke df di0)y91accel9fe0m1ki)d y deration?

  An object starts from rest and undergoes uniform accxbhx(r (b n.lv mr1-ri6d:u6ijyvtprf+: -. teleration. During the first second it travels 8.1 m. How far wipv6 xrbmvf-6 ri(:+ntuy -h. xilr. :tjrdb(1ll it travel during the third second?

  An object is moving in a straight line with constant 9oa27h-y,gmihcpf)kxb 5l4- sfvvf0acceleration. Initially it is traveling at 16 m/s. Three seconds later it is traveling at 10 m/s. How faok9,x-hf4 im )7c 5f2hvl-sp0vybfg ar does it move during this time?

  A car starts from rest anvgu0;35f3 o 1tn0nua;a eah+eb8b hofkc, d/ld 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 8wp/)1x qtbvxroad can 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 that has been waitingtbmn3( edu a294s qe4n at the intersection star42sn4mnue tdb 3(ea9q ts 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 speed of 12 m/s on the su(7c sb xh/pno3rface of planet X where the acceleras x(p7hnc/o3btion 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 plane1 ; *yx7mhyh vgsam/sel0kf 5):etp i5t X where the acceleration due5eife 5 gs /1v7a l0myth*x:yk)smp;h 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 speed of x rlmznz46usjf2 60 k915 m/s on the surface of planet X where the acceleration due to gravity is z0rl 9 x6nkj46szu 2mf$2.5m/s^2$. 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 surface of13 c;rce1sfhc planet X where the acceleration due tch;c3ef1sr c1o 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 friend ho+,tr 1vpm cr:ylds a ruler between your fingers ar:c,tp +ym vr1nd releases it without warning, how far can you expect the ruler to fall before you catch it?

  A ball is thrown upwardq afh-a /bjg;) at a velocity of 19.6 m/s. What is its velocity after 3./fhbg) aq-aj ;00 s?

  A bullet shot straight up returns to its startito 64 (dg;ft-nbp/ 4bd-ccpusng point in 12 s. What is the initial speed of the - dcdug/cbtf 4n-tp6s4 bo (p;bullet?

  A ball is thrown straight up with a speed ofi4e( 6(h:zxnjl eq-ub 36.0 m/s. How long does it take to return to its star46xqui lz( -:bn(ejheting point?

  A ball is thrown downward from the top of a building with - lw;0* c:* ap9rw(irwecktflan initial speed of 6 m/s. It strit;0rw a rk*lcfww:cil9(-p*e kes the ground after 7.9 s. How high is the building?

  A ball is thrown str3z9;vmsv7 x)zde,lv2 : ks9jx pl)qbv aight up with a speed of 30 m/s. (only fill in numerical value in the bl9ksv, 2ebq:j dv lv ;zp)x97v3smx z)lanks)
(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 fs x)n90 pi1uq3jv0i fthe air with a speed of 22.8 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 3 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 13 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 13.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the 6cvo v as s,8lg,qq-1qvelocity at t = 1.0 s?

  In Fig. below, what is the velocity at t = 2.5 3s/.0x igoew;cpl 0v ;z5ioc hs?

  In Fig. below, what is the velocity at t =6d ks8cf)1+z ax;k6cf)hm njk 4.0 s?

  In Fig. below, what is tz4tutzt3e( q ;he velocity at t = 5.5 s?

  In Fig. below, what is the average velocity from 0 to 4.0 s?-,yue:jk,r6wmq y0ayn /q-b rbp).e to b6*cn

  In Fig. below, what is the average velocity from y+mcm1pf qb;0*d 8t.2m xxmns0 to 6.0 s?

  In Fig. below, what is the accelerat5q/iu(n wq h2bj,jcig119aq uion at 1.0 s?

  In Fig. below, what is the acceleration at z4mxm je5cqe6r(rf:kzj, :c 53.0 s?

  In Fig. below, what is the average acceleration from 0*ssnpj7) ty/ycj s:f 5 to 5.0 s?

  In Fig. below, what is the average acceleratioo(0,btq r9qqg ivmz1(d( hkk9n from 0 to 8.0 s?

  In Fig. below, what is the displacement from 0 to ixytg4x );9,vi gooz3 oc.0io8.0 s?

Does a car speedometer measure speed u(b w12yf8iy fu9zs-i, velocity? {speed|velocity}

  An object can have a varying speed 5ovefh m:jwis9 od,v3v/ 2zl7if its velocity is constant.

  The velocity of an object can be negative when itsb)zo0q 3hegyp,uxocuh) nh0t53t +o+ acceleration is positive.

  If one object has a greater speed than a second object, the first mh6;gt3tc b 5qr8gd4tmjtn4 d2 ust have a greate3td 8b tn2r 546gqh4 cmdgjtt;r acceleration.

  Two cars emerge side by side from a tunnel. Car A is 7sy5uif e8z8 gtraveling 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.