94.01: Starting from rest, object 1 falls freely for 4.0 seconds, and objzb)v //cgam;h ect 2 fb;gah zc)m /v/alls freely for 8.0 seconds. Compared to object 1, object 2 falls:

  94.02: A car starts from rest and uniformly accegnr/rcf08rww,)z 3ykg5 k/ vnrsci- +lerates to a final speed of 20.0 m/s in a time of 15.0 s. Howrs5ig0/yw- rn vc z c,)wn8k k/rgrf+3 far does the car travel during this time?

  94.03: A ball is thrown off a high cliff with no horizontal velocity. It land,3:b ovpy 8h(egkw acxe,x1t.x0 0sjds 6.0 s later with a vc x0v0jxx kb8h awey,1p sd. g,3(t:eoelocity of 40 m/s. What was the initial velocity of the ball?

  95.27: A rocket near the surface of the earth is accelerating vertica/b-pi0exwxoh /z j .;ally upward at /xehoa.-w b; 0ixzp j/$10\;m/s^2$. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:

  95.13: A freely falling body a- j4k,qf rl;uis found to be moving downwards at 27 m/s at one instant. If it continues to fall, one sl-u ,; raq4kjfecond later the object would be moving with a downward velocity closest to:

  95.39: A car starts f1 m .zqn,-qpgwc 3anw/rom rest 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 th hp4q u(*;0orrxua rr1e ground with a speed of 30 m/s. Assume air resistance can be ignored. The heigr1 u*x(q40;roprua rhht of the building is approximately:

  97.09: At a certain time, an object in free fall has v-gs2 ;s y8rgkgc(be,n3j+d zbelocity 4.0 m/s in the upward dires (3, +zcbyd;jgb-28sgkgnr ection. What is the approximate velocity of the object one second later?

  98.14: How long must +w3eeq9i st iq80lhf pw7y8+ la $2.5\;m/s^2$ acceleration act to change the velocity of a 2.0 kg object by 3.0 m/s?

  98.15: A freely falling obj)a lz7fpyhq1 rjt0)5u -dh,dn ect is found to be moving downward at 18 m/s. If it continues to fld1u) y5)zdqtj h0h7a p,-frnall, two seconds later the object would be moving with a speed of

  17.02: A small object is released from rest and +vf(lqii ; 7+5czfshn +bv-k-ib uw z3falls freely for 4.00 s until reaching the ground. What was the height above the ground from which the obn (i i- h+zc-ub73 ziw;klqfvv+fb+s5ject was released?

  11.06: A ball of mass =0.100 kg is launched straight upa+arbaw;n1 q*ward so that it rises to a maximum height of 12.0 m above the launch point. Ignore airrw a;aanb1+q* resistance. When the ball reaches 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 massgaay2 c mmi(1np0-hr (hme(,s =0.100 kg is launched straight upward so that it rises to a maximum height ofi rm0(cgem2ymnhs(a h1,ap (- 12.0 m above the launch point. Ignore air resistance. Approximately how 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 0.40 m/2ha0e j,o:eze s two seconds after it begins to slide. Approximately how far does it travel in three seco2o jz ea,e0eh:nds?

  98.40: Coin I is thrown upward from the top of a 100-4lim9 wze2o) dm tower with a speed of 15 m/s. Coin II is dropped (zero initial speed) from the top of the tower 2.0 s i9o4ezw2)dml 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 initial s*/pkh9by yiji*;a, u xpeed of another, how much higher wiy,by ui9 ;j* x/hak*pill it be at its apex?

  02.30: A box falls to the grou fc6nax:;aq,fnd from a delivery truck traveling at 30 m/s. After hitting the road, it slides 45 meters to rest. Ho6ncq;xfaaf ,:w long does it take the box to come to rest?

  03.29: An object is thrown upwards with a velocity of 30 m/s,6p05 jp //l460blerpdim0scre,l y+ ojt wlc near the surface of the earth. After twer6/lpw+b jli ,l 0lecropc5/p0,yjts40d m6 o seconds what would be the direction of the displacement, velocity and acceleration?
displacement velocity acceleration

  04.10: Three stones of different mass (1m, 2m& 3va- m7 2bpf 0ju/a8uarh)il3 ym) are thrown vertically upward with different velocities (1v, 2v& 3v respectively). The diayf 0 /2b ha7-rju i)a3l8avmupgram 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 objects are launched st0-qsum *mu9e :8 qzorcraight 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 ma -mo9s uq rz:8m*ue0cqximum attained height above the launch point in terms of H ?

  04.28: A rubber ball bounces on the ground a jr.s0n;dp t+ :wj3oavlra 8o4s shown. After each bounce, the ball reaches one-half the height 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 th :.j;0ora+rs av olnj43wp8t dird bounce?

  16.21: At 1.94 s after launch, a projez8 3-sfheo m6pemrt+.8j 6dhpctile in free fall achieved its minimum speed during flight. If that minimum speed was 15.0 m/s, what was the projectile’s initial angle of launch8ezo mj8r-6 + .mephdfp36hst from the horizontal?

  05.02: A pebble is dropped from a high vertical cliff. The collie -ki o,r)f.4yh 7oabesion of the pebble wir h ke4)i ay,.e7f-oboth the ground below is seen 1.50 seconds after 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 parki.b xv +znny b lsy)x/h.,ec+1kng 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 1.4 seconds, approximately how tall i)nyl,xn1 +k.. c+/sz bevh byxs the parking garage?

  05.07: A snail is moving along a straight line. Its rpi1n 02at9l ulqh1/d initial position is x0 = -5 meters and it is moving away from the origin and slowing down. In this coordinate system, the signs of the initial position, initial t02i/ ulnp 9ahl1d1rqvelocity and acceleration, respectively, are

  04.38: A small point-like object is pulled downwards by gravity (down thehibz31p0e1eldw 8.l z 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 be released from rest at point A and travel to point B. Assume that in changing direction that there is e31.hl8e 0ilpzzb d1wno loss of energy and that it takes negligible time.

  06.13: A rock is dropped from the top of a talldt jncy :i 9jo-2s3az6 tower. Half a second later another jyjad izo 93nt-6:s2c rock, twice as massive as the first, is dropped. Ignoring air resistance,

  06.18: A cart is initially moving at 0.5 m/v6;icxl* hkr6v u*ac7 s along a track. The cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart is initially moving at lvcxuh a kr6*6*vc7i; 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 tranvqv6:z* m ,y tkfy4jw o2r;v*ck. The cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the c,jv2*wmrvtz6oy vfy;:q *k4 nart is initially moving at 1 m/s. How far does the cart travel before coming to rest?

  08.03: A dog starts from rest and runs in a sfr5i ndh.x q(pjouht;hz .98)traight line with a constant accelera8n;( zqo.jr 5hfih9xutd p). htion 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 rest falls without air r t)wx.m(sr a*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 remaining dis)(.r rx*ws amttance of 0.5h?

  10.38: Two objects both mo) cnjoa;mv. ,yve and uniformly accelerate to the right. At time t=0,the objects are at the same initial po. y,vaj;n c)mosition. Object 1 has initial speed twice that of Object 2; Object 1 has one-half 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/s from us)zv9 po8*pydtip b 3onszo: n66jx;pe/3,na height H above the ground. The object 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 groun,o;e* pis8 z 6u:ntd nb3 p6pso/opxzv 3yj9n)d? Ignore air resistance.

  13.10: An object is thrown straight upwarja-npd b0 ta;fptb qy+3w;) t(d. The object remains in free fall until it returns to its initial launch point. Which one of the following graphs could represent the velocity of the object as a function jab qwanp) +3b(t;t p-;dtyf0of time during its flight?

  14.03: An object is dropped into free fall. Through how many metervd6xi* ps/: ,tpsu2 gus does the object fall during the first 3.00 seconds ofix2sp ,p6/s:*gudvut flight?

  15.02: A box uniformly slides 7.50 m a .r xtm)ufi*f1q:jd 4i.pc2uha p5m 3to rest across a flat surface in a time of 12.0 s. What was the initial speed of the box when it startedrmaux t.iujiqf 2*a 1.m)h4 5cdppf: 3 its slide?

  14.07: Starting from rest, a cart uniformly accelerates to a q iett 6g3jt) jr645iig6n me/speed of 7.60 m/s in a t j3tt)6/ jnrei gtm6e5i6ig 4qime of 3.00 s. Through what distance does the cart move in this time?

  14.16: A toy car initially moves to the right at 6 i0xty z.yscx2qz1 emtw;n.+60.0 cm/s. Five seconds 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 car during the fiv0+yi;xyz w6.nxs tctz 1 2m.eqe second motion?

  14.17: A toy car initially mov*8wv qlgxo kvf o53b.)es to the right at 60.0 cm/s. Five seconds 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 acceleration oovk5 o wglvbx3f.*8q )f the car during the five second motion?

  14.33: An object moves with constant acceleration starting with vaq(kl8 -yqz8 felocity $v_0 = 5.00\;m/s$ 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 initialrc30 / jn:j+xd in(odnly is moving upward while in free fall. Which one of the following choices best represents the direction of the object’s acceleration during its oni(j/c3:n n0jx+ ddr flight?

  13.26: An object moving only to the right completes a 20.0 second trip in two s;wqe ihdo.db( enu /19,j a9lrtages, I and II. The average speed of the entire trip is 10.0 m/s. For stage I, the object moves with a constant velocity of 6.0 m/s for 12.0 seconds. What constant acceleration mdb9 uq.;whoael( j1n d/r,e i9ust the object have during the 8.0 seconds of stage II?

  15.32: An object moving along a line completes a 20.0 sea/d hout-x .u3cond trip with an average speed of 10.0 m/s in two stages. During stage 1, the object moves with a constant velocity of 6.0 m/s to the right for 12.0 seconds. What constant magnitude accelerd3-.ahx/uuto ation directed to the left must the object have during the 8.0 seconds of stage 2?

  13.33: At the top of a high kezi)n1l)3*nk df-ne cliff, a small rock is dropped from rest. A 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 the ball has fallen 28.0 m further thanzdf)n k1n l3)ekien*- 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 aq9xr hem0 oqp x72ui5- robot. The robot accelerates atr qomux790- exiqh5p2 $8.50\;m/s^2$ 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 launnx++peb(;f m(byjeq pb94m2p ched vertically upward. The vertical position of the ball 0.70 s after release is the same as its vertical position 4.10 s after its releasep4 pbb;qb(jem+ m9xenf+p 2( y. At what time is the object first at a vertical position that is one-half of the maximum height it obtains during its flight?