Suppose that an object travels from one poi d+zuhc)c mx.)nt in space to another. Make a comparison between tuzc.+hx) dm )che displacement and the distance traveled.

  When is the average velocity of an object sji u4og:,ik e r-;8k ayz w+hy28vep6equal to the instantaneous velocity?

  A new car manufacturex se7e ztw.uwu:eb)-(r advertises that their car can go "from zero to sixty in 8 s". This)usb-t(z: eew x.uw e7 is a description of

  An object moving in the +x axis experiences an acceleujziibm9. ,r* ration of $2.0m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x directiori+qu,fm:.y lc;0 ay un) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleraq rly; my.cu+ai,uf:0tion.

  Suppose that a car traveling to the West (-x directo 64w v4 1t3xga927t.v qhum7c jhagfqion) begins to slow down as it approaches a traffic light. Make a statement concerninuvvxhm4q37aaw1gq2t h64 t7 9.fo cjgg its acceleration.

  Suppose that an object is moving with a constant velocity. Make a statement 3k, uoyo dsx9:concsudyx3k9 :oo, erning its acceleration.

  If the velocity of an object is zero, does it mean thatk e0/zwo;(z3fsnry t/d( 3stg the acceleration is zero? Support your answer with an example so t/;z( rskefd3ny3z0/wtg (.

  Can an object's velocitygj s 3*p;(fxty change direction when its acceleration is constant? Support your answer y(; sf3xg* tpjwith an example.

  Suppose that an objedoo 10xp(eli /8)x5mgvs4 fsmct is moving with constant acceleration. Make a statement concerning its motion with 1omf gxvo0/s 8s5m4l)(xepdi respect to time.

  Can an object have increa 3d;m,gi ssq-szctg+:e;e8qzv-mo8zxg a 9d.sing speed while its acceleration is decreasing? Support your answer w-8mc s 3.szdq9g;zd:+8xqm tz;vg gse,ae i-oith an example.

  Suppose a can, after an initial kick, moves up along a smooth hil funr,:snvy-q(0a+1(zf ok dw d*xj7ml of ice. Make a statement concerning its accelf0z j- q*um o,:rn(kas7d wf1ynx(d+veration.

  Under what condition is average velocity equal to the average of tfk3ck gh.vh 3dr(ycqu- l8m;4he object's initial anh3dc q( f3hclry m-gku v8k.4;d final velocity?

  Objects A and B both start at re, dmmhu; jy+qbh,9o i5st. They both accelerate at the same rate. However, object A accelerates for twice the time as object B. What is the final spe+,ohj y 59ui;qdm,m hbed of object A compared to that of object B?

  Objects A and B both start from rest. They both acceleratef69+b njb .n,z:erg-e2 oc hax at the same rate. However, object A accelerates for twice+egebb2- z:6a fj9 r,ocnn. hx the time as object B. What is the distance traveled by object A compared to that of object B?

  When an object is released f.h7hc ,9hw,ri0n x1mqjef a3irom rest and falls in the absence of friction, which of the fo , ,h307.a hi1cirjfnh9mxweq llowing is true concerning its motion?

  When an object is released from rest and fas-e0wwx l0rem0a 4y)glls in the absence of friction, which of the following is true con- )0s 0erewmy0wxgl4acerning its motion?

  Suppose a ball is thrown stj n,h4iikhd. 2raight up. Make a statement about the velocity and the acce hh2 nkjii4d.,leration when the ball reaches the highest point.

  Suppose a ball is thrown straight up. What is its acceleration justetuf-tl oc41m0:u t+y before it reaches ut tmy:04fc-u+l1teo its highest point?

  Suppose a ball is thrown straight up, reaches a maximum height, u 2;ug4fy,opo1qiz 7qthen falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is goi4p y1ug2 q 7o,ouqfzi;ng up.

  A ball is thrown straight up, reaches a maw0e o0kki)4 mhn3zj+gximum height, then falls to its initial height. Make a statemm0 ek4g0o)+3ziwnh kjent 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 resis: i/rua i 8kvgo.ed,y1tance. Make a statement concerning its acceledky1euio gi, a8.v /:rration.

  Suppose a skydiver jumps from a high-flying plane. Whath5ep7(g :kncf5q ys k9 is her acceleration when s:gs 759cyk5k ef qnp(hhe she reaches terminal velocity?

  A ball is thrown vertically upward with a speed v. An ide 8 1oi3k( nqpf;jo(tnrntical 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 than the first ball?k8nnio rj(;3(tqo p1f )

  Ball A is dropped from the 41e6(fk txx1ond: kp.ijjx+ xo yo:0b top of a building. One second later, ball B is dropped from the same building. As time progresses, the distancekx :dtf1 xi 4b.y ok:pe(0+o6xjnjo1 x between them

  Ball A is dropped from thefc sww .)l5b,n top of a building. One second later, ball B is dropped from the same building. As time progresses, the differ n. )w5fbwsl,cence in their speeds

  Two objects are thrown from the top of a tall building. One is obkrbhx*/3g9q1 u+ ajq4e kr1thrown up, and the other is thrown down, both with the same initial speed. Whatbr 4b19ra+/xejg o3 ku*hk 1qq are their speeds when they hit the street?

  A brick is dropped from the top of a buildid7b07fmd.u m x bbo-el7wjo2(ng. A second brick is thrown straight down f727 o-jol u0f7bmbx dd(w. bemrom the same building. They are released at the same time. Neglect air resistance. Compare the accelerations of the two bricks.

  An object is moving wit/uc ,ef/uw6zv e8) ql(0g pirkh constant non-zero velocity in the +x axis. The position versus time graph of 6,uwc 0g/ l(e8urqkzpi)v /ef this object is

  An object is moving with constant non-zero acceleration in the +x axis. T b k)hqjs+l0ey4x,y)uhe position versus time graph of this object)0e yqhk u4 lyx,sj+)b is

  An object is moving with constant non-zero velocity in the +x axis. The velocz x74ec,jkd g(ity versus time g ,d7xc(k4jze graph of this object is

  An object is moving with constant non-q 7yt:d2 kr(kxtzxk)v4 q3gv) zero acceleration in the +x axis. The velocity versus time graph of this object xqyxk2t rkv3 74)g)(dt vk: zqis

  The slope of a position versoc 4lwp ,/d0arus time graph gives

  The slope of a velocity versus time graph give4/o. zrq-ecwr,s .b- gq2nlncs

  The area under a curve in akbp+.id r4wn8n acceleration versus time graph gives

  The area under a curve in a velocity versus time graphl6)-ras xdw voy+:dn3,zkx5vmx7 3i v gives

  If the position versus time graph of an object i+v)/2j0o/o fb nezcxps a horizontal line, the object ise v/)2 f+ oczx0b/jpno

  If the position versus time graph of an object is a vertical lib-/ q,fam)kc sne, the object isb)-qmsaf, kc /

  If the velocity versus time graph of an object is a erya qq;sw.icx 5 )b(.horizontal line, the object .axs(. q; be5iw c)qryis

  If the velocity versus time graph of an object is a straight line making an an30wym3rjvneswrxup67 25p1 :cdj2bngle of 30 degrep s7e5 n30w:nurvy mb3 x6dcj1j2pr2wes with the time axis, the object is

  An object moves 15.0 m north and then 1t(,h aei0jsp *u9myc71.0 m south. Find both the distance traveled and ta 7t imy,9csj*(p0heuhe magnitude of the displacement vector.

  A boat can move at 30 km/h in still water. How long will it take to move 1am ;qjb(5wg2b( *waos e;-4bnkei/ic2 km upstream in a river flowing 6.0bs5a-(2(ikbwe /*e qgnmcw;o; 4 jba i km/h?

  55 mi/h is how many m/s? (1 mi = 1609 m) ruh2g8o pu-v678 vaiyz9/ko v

  What must be your average speed in;ymy 0i:jw)b qtncx/ / order to travel 350 km in 5.15 h?

  A runner ran the marathon (approximately 4c9zi 63+s erf v,*,vpi.locl r2.0 km) in 2 hours and 57 min. What isz v 6lc9,.,ipfviole c+* 3srr the average speed of the runner in m/s?

  A car travels 90 km/h. How long doe94tfchy bz 67ds it take for it to travel 400 km?

  A ly (light year) is the distance that:u 7 5v 92 brzuekh3tcgi3ly)z light travels in one year. The speed of light iry)9ue2zv:higtk3z u 3 7c5lbs $3.00\times {10}^{8}m/s$. 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 lj*h6 6yy*,uupr:g md a straight road and you look to the side for 4.0 s, hoj:6y dgu hul6*ypm r,*w far do you travel during this inattentive period?

  If you run a complete loop around an outdoor track i51fe;g i5qxf(400 m), in 100 s, your average velocitf5 if1e;5qxgiy is

  A polar bear starts at the North Pole. It travels 1.0 km southv(r yvx/3,ddu, then 1.0 km east, then 1.0 km north, then 1.0 kd,r/vv3y u dx(m west to return to its starting point. This trip takes 45 min. What was the bear's average speed?

  A polar bear starts at hh8 (-xw2, tr8qdn umvthe 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 to8h r2-(m quv 8htwxn,d its starting point. This trip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend fe7 kqn8b4 3 ijikm; kl:ue1req2)ofs-rom school 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. 2 r 8bnlkm7fiek o4i;s -q):uk13e ejqHow far is your hometown from school?

  A motorist travels 160 km at 80 km r1.muaoen)1b /h and 160 km at 100 km/h. What is the average speed of the motorist for this eman1b.r)u 1otrip?

  A motorist travels for 3.0 h at 80 km/h and 2.0 h x ro: z-8 d v83gdsmb.-z9eczbat 100 km/h. What is her average speed for the trip?cdvz38 eo -bsgbz8dm-r9x.:z

  An airplane travels at 300 x wfku 5ywyiinzc sg7+)b7,9;mi/h south for 2.00 h and then at 250 mi/h north for 750 miles;, 5 biwsi)w97zgykun7xf+ cy. What is the average speed for the trip?

  In a 400-m relay race the ancho+vkh 9 jo8utu7x1j7 -dwdec l9rman (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 st1hxltd9 u-d+wj 7 v7o8uk9c ejarts the final leg of the race, in order that the team A runner not lose the race?

  A car decelerates uniformly and comesdz5q*dw d bx00 to a stop after 12 s. The car's average velocity during deceleration was 51 km/h. What was the car's deceleration while slowid z5d0d0bq*xw ng down?

  An airplane increases its speed from 100 m/s to 160 m/s, ati2 9wqqonprki mun1 ,h7 qv5*3 the average rate of q7 ropniqw3kvim1, h q2*un9 5$15m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelera42jmq/2hh 3;oi5ftskfi n3 gl tes 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 ag2ne-lja4 +e end 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 tpja0xcxbx;+7 hen speeds up with a constant accelerationcp;7 jxx0 b+ax 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 5.7 m/s exsfjm9u)0w bf c-3+jf/xbp gl :periences a constant acceleration o3g)9cj fb jbp0mx/ ffu-w:l+sf $1.0m/s^2$. What is the cart's displacement during the first 4.4 s of its motion?

  A bullet moving horizoned*o (isjc-+h-z bkvtso a)0i 21z.tor,h g0 ftally to the right (+x direction) with a speed of 200 m/s strikes a( f0-k,*-0v eitd)jahzbs og.ho 2ctis zo+1r sandbag and penetrates a distance of 13.01 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 carriej .m 7g-usql+wqhwuec:)f 1q7r. It reaches a speed of 42 m/s at the end of the catapult, and this requires 2.0 s. Assumwm+7 qq)sh qfj1- .ecguw7 ul:ing the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with constant acceh mi;8 l,0xzzzleration 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 f67 1ahj m)jatits average accelerat1jf 7h amt)aj6ion?

  An object starts from rest and undergoes uniformhg0j 59 sek7ta acceleration. During the first second it travels 5.4 m. How far will it travel during the third sece05 thjs9 k7gaond?

  An object is moving in a straight line k3c t yv w4yioqqsmm *s- ,pmb+,7;/dgwith constant acceleration. Initially it is travebmq,+msgpcvo ;w7mi*/qk 4t-y s,yd3ling 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 acceleramk43 t .4knzb8l) cyzstes 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 etnoi:7jd t3z5-ns 1b a dry road 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 besw.,7-j knzw,stg2wn1wv+gzen waiting at the interwkw z w2.-g1+s,wvn tngj z,7ssection 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 speed of 12 mwztp p gui1yhqb,.9a +):zls8 /s on the surface of planet X where the acceleratioz ua8p).:ti1ywgz9ps+, hqlb n 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/n)0r)wlf,e0 2 l2rhy uwhhkv(s on the surface of planet X where the wlh ,hwf r0)h0)r(vukl2yne2 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 speed of 15 m/s on the surface of planet -ytj vokdg *fvc0(h42X where the accel jf*vc(hto 4vyg2dk0-eration 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 k)cl.5c jb) ) m:fotdlupward with a speed of 14 m/s on the surface of planet X where the a )oc:fmldb)l. 5kc)tj cceleration 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 0.10 s. If your friend hol 4b+e7a8hhq* kp4aka sds a ruler between your fingers and rkabs8 qh h ap*ak44e+7eleases 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. 5/w 4312 d0+mswro epjutvsq8asvl*lWhat is its velocity after 3 w0sov /4e2tv *p +l51maw3rss dl8uqj.00 s?

  A bullet shot straight up returns to its starting point in 16 s. What is th(- sunp4gc+3h ln xjdz,t73ax e initial speed of the b ,hncsd34pn 7+ xxul3-gjzta (ullet?

  A ball is thrown straight up with a 9(0ib28oh breae+.8 (/yjwfmicbnv 5w2 a hjjspeed of 36.0 m/s. How long does it take to return to its he n8b.b+weva(o28w9hr ajifi/0( 5mj 2cybj starting point?

  A ball is thrown downward from the top of a building with an initial speed 9a0o7se.p6elnr m8 nhof 6 m/s. It strikes the ground after 2.4 s. How 8eh s eano7 n9l0pm.6rhigh is the building?

  A ball is thrown straight up with a speed of 30 m/s.3ndx r6gc 8xpdsf8ga lsr53*:4n gdr4 (only fill in numerical value in trl4g8*gdd s8g xn3rs54rf3c dax6n p:he 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 up into the air wigdyzk;h,ri +7a)bmf: +4 aqigth a speed of 38.7 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 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 thek,feiqu+0 vxr)fk-/6)xm iz7mu8jk-s h,wc k velocity at t = 1.0 s?

  In Fig. below, what is the velmn 5:iqpz.8 wcocity at t = 2.5 s?

  In Fig. below, what is thej9f 1gs-j.;dqy0 mk mb velocity at t = 4.0 s?

  In Fig. below, what is thej sk,dmk , *gn7e:qx4g velocity at t = 5.5 s?

  In Fig. below, what is the average veloqle *o 9i:im+l( lg-aqns2 m2lcity from 0 to 4.0 s?

  In Fig. below, what is the averaqeo3 suntv,j ;s7v6/oge velocity from 0 to 6.0 s?

  In Fig. below, what is theof g-6rkbs:3n4gjc: t acceleration at 1.0 s?

  In Fig. below, what is the acceleration at 30wow.odt:k)vvnr z2vhj0(r 7r ea 53 v.0 s?

  In Fig. below, what is the average acch1 k* ;0+ qy6dtp,jeqoya:we yeleration from 0 to 5.0 s?

  In Fig. below, what is the average acceleration from 0 to 8.h7952y(y* 1xzy ykk;ksl h aql0 s?

  In Fig. below, what is the i+rb)gsnjr5q dyk*g-q++ e;jngx 8 u+displacement from 0 to 8.0 s?

Does a car speedometer measure speed, f8irvxf+u4e;(* nas uvelocity? {speed|velocity}

  An object can have aa yiqq /1u+mx1 varying speed if its velocity is constant.

  The velocity of an object can be negative when its accelerati,soyx8t7esg84l /lgju/ro7gb(o 7 h eon is positive.

  If one object has a greater speed than a second q/147u, wn3gdvwn( igzw ut+*8kwkxoobject, the first must have a greater ackiwu w/kg7qod3+ n w8z ngw4t(1*vux,celeration.

  Two cars emerge side by side from a tunnel. Car A is traveling ltvu+, jn/h,j fvu 5f;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.