94.01: Starting from rest, object 1 falls freely for 4.0 secondn cgp41ib1s d)s, and object 2 falls freely for 8.0 seconds. Compared t i gc)d4ps1n1bo object 1, object 2 falls:

  94.02: A car starts from rest and unihf46jxw zv/55igruwgzm)71h 1 qsh 7rvd 1+osformly accelerates to a final speed of 20.0 m/s in a time ohvjg)i 7r6 rvmg1ushho fzzs 1/qw5d+1wx574f 15.0 s. How far does the car travel during this time?

  94.03: A ball is thrown off a high cliff withx f:w/ondfuy:zy0ji5 l3*pxni 9j*j5 no horizontal velocity. It lands 6.0 s later with a velocity of 40 m/s. What was thwfdl5jixijzyp 09/o*njx* n 5u fy3::e initial velocity of the ball?

  95.27: A rocket near the surface of the earth is accelerating vertiwtd tlcgloj) j(t37(1w2pl2sw r+(ahcally upward lw( j(2l1hl2 t )7jpw( wto+dt asrcg3at $10\;m/s^2$. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:

  95.13: A freely falling body is found to be movingzme95 pks ir0/ downwards at 27 m/s at one instant. If it continues to fall, one second later the object would be m/rzmepi0 sk 59oving with a downward velocity closest to:

  95.39: A car starts from restx5(c)pd/ ;q4-rvj oea/hfjj t and accelerates at $0.80\;m/s^2$ for 10 s. It then continues at constant velocity. Twenty seconds (20 s) after it began to move, the car has:

  96.17: A ball which is dropped from the top of a building strikes the grou 4a vpkac65)hdnd with a speed of 30 m/s. Assume air resistance can be iga)d4pa6vk5 hc nored. The height of the building is approximately:

  97.09: At a certain time, an object in free fall has veloztc2of6dz04y city 4.0 m/s in the upwa tzfco2 dz6y40rd direction. What is the approximate velocity of the object one second later?

  98.14: How long must l,zc 8v 6tt1oga $2.5\;m/s^2$ acceleration act to change the velocity of a 2.0 kg object by 3.0 m/s?

  98.15: A freely falling object is found to bea/w9ihrlx-uohzbdl n7m ut*n+. 8/:n moving downward at 18 m/s. If it continuesli/wz ta*8 hbm :.n-lod9ur/7+u xnhn to fall, two seconds later the object would be moving with a speed of

  17.02: A small object is released from rest and falls freely -gayfelaus4p(lc.8 6 for 4.00 s until reaching the ground. What was the height above the ground from which8g6 spla4c.f-ay eu(l the object was released?

  11.06: A ball of mass-qgui228pu ; cbypa l8 =0.100 kg is launched straight upward so that it rises to a maximum height of 12.0 m above the launch point. Ignore air resistance. When the ball reach8lu-i 2p2cug ;q8py abes its maximum height, which one of the following choices best represents the magnitude of the net force acting on the ball?
D 10.0 N
E 12.0 N

  11.07: A ball of mass =0.100 kg is launchedzxx85 m gbf1y2).t ibs straight upward so that it rises to a maximum height of 12.0 m above the launch point. Ignore air resistance. Approximately h sifym82bxxg 1t5b)z .ow much time does it take the ball to reach the maximum height from its launch?

  98.31: An object sliding down an inclined plane has speed 0.6*s8 kn r51duz+vxtdg40 m/s two seconds aftdxzurvd5n+k1*gs 86t er it begins to slide. Approximately how far does it travel in three seconds?

  98.40: Coin I is thrown upward from ni ivouk3ft/9(y; yn) the top of a 100-m tower with a speed of 15 m/s. Coin II is dropifn9u/v k3 ;o(ytin)yped (zero initial speed) from the top of the tower 2.0 s later. Assume g is $10 \; m/s^2$. How far below the top of the tower does coin I pass coin II?

  02.04: If a ball is thrown directly upwards with twice the ixge /+fegz0 qxh (dp +3as,q/initial speed of anotheq+s / qfgz(/+hei 3d0exa,xpgr, how much higher will it be at its apex?

  02.30: A box falls to the ground from a delivery truck tusbw 1 a8n2p/1ra*z nlraveling at 30 m/s. After hittn2 l8 *snpua/a11w rzbing the road, it slides 45 meters to rest. How long does it take the box to come to rest?

  03.29: An object is thrown upwards with a velocity of 30 m/s near the sk-j raio4f,6ourface of the earth. After two seconds whatrk - 6a4ofj,io would be the direction of the displacement, velocity and acceleration?
displacement velocity acceleration

  04.10: Three stones of different mass (1m, 2m& 3m) are thrown rnzky +dz*m)ztj7 t*;vertically upward with different velocities (1v, 2v& 3v respzd ;znyr*)jtkz * 7+mtectively). The diagram indicates the mass and velocity of each stone. Rank from high to low the maximum height of each stone. Assume air resistance is negligible.

  10.25: Two point objeceuyoz wbi1z 6x6e20)j w xpk6j t.q9y*ts are launched straight upward with identical linear momentum. Object 1 has mass M and reaches a maximum height H above the launch point. If object 2 has mass 2M, what is its maximu1j*bx w.tyj)ez uop9e i k26z w660qyxm attained height above the launch point in terms of H ?

  04.28: A rubber ball bounces on the ground as shown. Afterqx6kqjesfxhvq iri:/ c 2/;i ; ueguy1c5-t.( each bounce, the ball reaches one-half the hecsj.(vh rgiiequ t/x;u1k6qe 5y:q;c -x2if /ight of the bounce before it. If the time the ball was in the air between the first and second bounce was 1 second, what would be the time between the second and third bounce?

  16.21: At 1.94 s after launch, a projectile in free fall achieved its ( /nh /e8ddvmuminimum speed during flight. If that minimum speed was 15.0 m/s, what was the projectile’s inid/e vn(h dmu/8tial angle of launch from the horizontal?

  05.02: A pebble is dropped from a high vertical cliff. The coll a1v/;g 7k8 robslu 2+rd.lafaision of the pebble with the ground below is seen 1.50 seconds aftea+ ba ur7;lrk/fa8 d.s 2glo1vr the pebble is dropped. With what speed did the pebble hit the ground? Ignore air resistance.

  06.03: Three students were arguing about the height of a pa+yu :6yit t:wuky8mf5 qs --pzrking garage. One student suggested that to determine the height of the garage, they simply had to drop tennis balls from the top and time the fall of the tennis balls. If the time for the ball to fall was 1ttuy s-:5pfk+:mzwy8-6 qyui.4 seconds, approximately how tall is the parking garage?

  05.07: A snail is moving along a straight line. Its initial position is x0 = -;xc wlkly+h v b*3a*a/5 meters and it is moving away from the origin kvb3 a/lc xal;h*yw *+and slowing down. In this coordinate system, the signs of the initial position, initial velocity and acceleration, respectively, are

  04.38: A small point-like object is pulled downwards by gravity (down mlgr a2;i3sr1the plane of the page) but is constrained to exactly follow each of the frictionless pathways shown. Rank these three paths from shortest to longest in terms of the amount of time (T) necessary for the object to bei3 a; smg1rl2r released from rest at point A and travel to point B. Assume that in changing direction that there is no loss of energy and that it takes negligible time.

  06.13: A rock is dropped from the trile7zdcvy5jjs+j + orxo/ 43w fe37:op of a tall tower. Half a second later another rock, twice as maef /wdz4xjcei3y: j3 vo7rsrlj75o ++ssive as the first, is dropped. Ignoring air resistance,

  06.18: A cart is initially moving at 0.5 m/s alotg/x:+ro es;t,xyib5vqi; ; r. *bfx(aq b8cjng a track. The cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart8tqy x5re;c ;(+saj b vxifi o*/rx;:.bqg, tb is initially moving at 1 m/s. How far does the cart travel before coming to rest?

  07.11: A cart is initially moving at 0.5 m/s along a track. The civ6o jjz14as 8art comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart is initially moving at 1 m/s. How far does the cart traojvas4j18i 6 zvel before coming to rest?

  08.03: A dog starts from rest and runs in a straight line with a constant accelen26o2 u gc dts-con5vug4/ug.rati2o/o ncd-4n tg2gu c56gu u.svon of 2$.5\;m/s^2$. How much time does it take for the dog to run a distance of $10\;m$?

  10.29: A ball initially at rvriyb6s(f7 (v lfx t2vf)s:5xlnf7 z0est falls without air resistance from a height h above the ground. If the ball falls the first distance 0.5h in a time t, how much time is required to fall the remainis zb7vnf)7vsvt: rxx 05 l(fyiff(62lng distance of 0.5h?

  10.38: Two objects both move anj mvq.e 3uzec1jx-ot,d3);vs d uniformly accelerate to the right. At time t=0,the objects are at the same initial position. Object 1 has initial speed twice that of Object 2; Object 1 has one-hov sqtz;e-3c 3jm.j,)1xe dv ualf the acceleration of Object 2. After some time T, the velocity of the two objects is the same. What is the ratio of the distance traveled in this time T by Object 2 to that traveled by Object 1?

  12.26: An object is thrown horizontally with speed 10.0 m)ih 9;ny/v d 3.aq-jehbcf41b c1bcrh/s from a height H above the ground. The obje 9ic .c3b1qc4hfbv)y; 1ahrjeb/ dh- nct reaches the ground with a speed of 20.0 m/s. Which one of the following choices best represents the time of the object’s flight to the ground? Ignore air resistance.

  13.10: An object is thrown straight upward. The object remains in freib4h7mt6 3t)r:akn lbe fall until it returns to its initial launch point. Which one of the foli6t3)tbn4bm l 7 :hraklowing graphs could represent the velocity of the object as a function of time during its flight?

  14.03: An object is dropped into free fall. Through how many meters does the p8 rbncl7(d4;28ceu s)ymcs4lm su1u object fall during the first 3. l(1 sdmb)4cu8cn2e8 l pyus 4crs;7um00 seconds of flight?

  15.02: A box uniformly slides 7.50 m to rest across a flape*uvl o2*s.d) yfzeu.t6 qsk /1 ad)ht surface in a time of 12.0 s. What was the initial speed of*f/ yeh 2psu.lt*zu ds kaq)ed .1v)6o the box when it started its slide?

  14.07: Starting from rest, a cart uniformly accelerates to a.hnnb f;w n( 0zam/gx4 speed of 7.60 m/s in a time of 3.00 s. Through what distance does the cart move in this tim/w.ag(n bn h0;mnzxf4 e?

  14.16: A toy car initially moves to the right at 60.0 cm/s. Five second,) n:/ mtonslts later, the car is moving at 40.0 cm/s to the left. The total displacement of the car during this time is 10.0 cm to the left of where it started. Which one of the following choices best represents the magnitude of the average velocity of the cart ,o s)l:/ntmn during the five second motion?

  14.17: A toy car initially moves to the right at 60.0 cm/s. Five seconds lnjmqxp1 xk064 ater, the car is moving at 40.0 cm/s to the left. The total displacement of the car during this time is 10.0 cm to the left of where it started. Which one of the following choices best represents the magnitude of the average acceleration of the car during the five second n1xxk6j4 m0qpmotion?

  14.33: An object moves 6 mts8da9uj 9rwith constant acceleration starting with velocity $v_0 = 5.00\;m/s$ and ending with a velocity of $v = -1.00\;m/s$ in a time of 3.00 s. For this motion, what is the average speed associated with the object?

  15.05: An object initially is moving upward while in free fall. Which one of i(9)mydzf;iuijnx 3 5 the following choices best represents the direction of the object’s acceleration duyiinuzmx f9id(5j )3 ;ring its flight?

  13.26: An object moving only to the right completes a z(d*1y78z xj7 0ykr l 9xrzgz5nxp xj-20.0 second trip in two stages, I and II. The average speed of the entire trip is 10.0 m/s. For stage I, the object moves with a djxzxyx*78r(kzz jy 7 1-pr9l5nx0zg constant velocity of 6.0 m/s for 12.0 seconds. What constant acceleration must the object have during the 8.0 seconds of stage II?

  15.32: An object moving along a line completes a 5*sp 7 cpkvf1ovfx/5 d20.0 second trip with an average speed of 10.0 m/s in two stages. During stage 1p7/5ok1dsxf5 fvpcv* , the object moves with a constant velocity of 6.0 m/s to the right for 12.0 seconds. What constant magnitude acceleration directed to the left must the object have during the 8.0 seconds of stage 2?

  13.33: At the top of a high cliff, a small rock is dropped from rest. 5y 3+tvl/9qnj d h+unzA ball is launched straight downward with an initial speed of 36 m/s at a time 2.10 s after the rock was dropped. When t5tujnlhzd+3n v+ q9/y he ball has fallen 28.0 m further than the initially dropped rock, what is the speed of the ball relative to the rock?

  16.36: On a straight road, a self-driving car races with ar ao u+h. es:ku1,+mhm robot. The robot accelerates at mhe: 1r.+ua k+mhu os,$8.50\;m/s^2$ until reaching its maximum constant speed of 15.0 m/s. The car accelerates at $5.60\;m/s^2$ until reaching its maximum constant speed of 25.0 m/s. The car and robot start from rest from the same location. What is the maximum distance that the robot leads the car during the race?

  17.44: A ball is launched vertically upward. The vertical position of the ball 0 5rl( hjsnxf7-1ec ,wb.70 s after release is the same as its vertical position 4.10 s after its release. At whr ,(hx1 l7cw efnsbj5-at time is the object first at a vertical position that is one-half of the maximum height it obtains during its flight?