94.01: Starting from resf 5u2l9tinn 3kt, object 1 falls freely for 4.0 seconds, and object 2 falls freely for 8.0 seconds. Compared to obunl3f29 nikt 5ject 1, object 2 falls:

  94.02: A car starts from rest and uniformly accelerates to a final speed of 20.w5ch jr,/bah7vm ggo)e:zoy 4* ;(sex 0 m/s in a time of 15.0 ,ghjbaehsreo4 z57wy v(cg/m:*x) ;os. How far does the car travel during this time?

  94.03: A ball is thrown off a high cliff with bz d(kqh;sv5 (jj5+ cdno horizontal velocity. It lands 6.0 s later with a velocity dj ;dv5k+q ((bjszch5 of 40 m/s. What was the initial velocity of the ball?

  95.27: A rocket near the surface of the i5k0.jy)xz4yiyz h c;earth is accelerating vertically upward at kjyiz)yyz4c i; 5 x.0h$10\;m/s^2$. 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 movpg6v 7e4.rh)o n sh,rvr,+amjing downwards at 27 m/s at one instant. If it continues to fall, one second later the object would be moving with a downward velocity closes4opr .)sg,h jmhv6r e +van,7rt to:

  95.39: A car starts from rest and accelerates i/c8ytidgtv879ta n 8at $0.80\;m/s^2$ 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 ths 3a y)axif7n;e ground with a speed)7saxn3fy; ia of 30 m/s. Assume air resistance can be ignored. The height of the building is approximately:

  97.09: At a certain time, an object in free ip ve(jewx -b 2:v/d8kfall has velocity 4.0 m/s in the upward direction. What is the approximate velocity of the object one second later dbpkvj-ee/8i:2(xwv ?

  98.14: How long must a z9cbeuh8. c-c $2.5\;m/s^2$ acceleration act to change the velocity of a 2.0 kg object by 3.0 m/s?

  98.15: A freely fall kcs*v14* 4qu knb7ngol+tak,ing object is found to be moving downward at 18 m/s. If it continues to fall, two seconds later the object would be mov l*7 tos1ackkvnb4k+n* qg,4uing with a speed of

  17.02: A small object is released from rest andw p3:n8dsmhwb u w,wtw0.-zf. falls freely for 4.00 s until reaching the ground. What was the height above the groundtw-w03n whdb,w8fu mp..:z ws from which the object was released?

  11.06: A ball of mass =0.100 kg is ldzocs6n 8:9wawpb,( raunched straight upward so that it rises to a maximum height of 12.0 m above the launch point. Ignore air resistance. When the ball reaches its mco69 sn8ab(z,:dr wwp aximum 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 kgkj 5i9fbsyhq2e5x 73s is launched straight upward so that it rises to a maximum height of 12.0 m above the launch point. Ignore air resistance. Approximately how much 72siq x f9kybje5h 53stime does it take the ball to reach the maximum height from its launch?

  98.31: An object slidin v0(tm1t0d4uti/ 0sro-lgl fog down an inclined plane has speed 0.40 m/s two seconds after it begins to slide. Approximately how far does it travel in three seco/go0 l-i(f0us dt1mt0vl4tronds?

  98.40: Coin I is thrown upward from the top ofixq iag,4xwupf m93* , a 100-m tower with a speed of 15 m/s. Coin II is dropped (zero inf giw q3m*ix, u,p9xa4itial 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 y(ujtj 5 ozy* 3uwl1i1the initial speed of another, how much higher will it be at its ap*3wj1yl ou iyuz t5(1jex?

  02.30: A box falls to the -(cox .mikzm,ground from a delivery truck traveling at 30 m/s. After hitting the road, it slides 45 metkmi-(. z,x comers 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 thew2 ecm:gg6f+miufnm-j q b376dyk80a surface of the earth. After two seconds what would be the direction of the displacement, vegyc0k2a66 3qf:gmm b8 wnu ej+d7f m-ilocity and acceleration?
displacement velocity acceleration

  04.10: Three stones of different mass (1m, 2m& 3m) are thrown vertici xgo/40w8cjw ally upward with different velocities (1v, 2v& 3v respectively). The diagram indicates the max 0gwow48i /cjss 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 straight upward op8vj.v 1ee1j)snfr. 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 maximum attainedoepe1v)j nsf .1j.r v8 height above the launch point in terms of H ?

  04.28: A rubber ball bounce lwbe8;- arnu*goloja.0w7y (s on the ground as 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, w r8aye;lg al-bo*u7w0ow.jn(hat would be the time between the second and third bounce?

  16.21: At 1.94 s after launcye+eh4ir q.--d wc1 rjh, a projectile in free fall achieved its minimum speed during flight. If that mih.dc e+q 1ri4r-e -jwynimum speed was 15.0 m/s, what was the projectile’s initial angle of launch from the horizontal?

  05.02: A pebble is dropped from a higfv* xuusy7. ,5yoq9lz h vertical cliff. The collision of the pebble with the ground below is seen 1.50 seconds after the pebble is dropped. With whavl* ,79 yfzqsu.yxuo 5t speed did the pebble hit the ground? Ignore air resistance.

  06.03: Three students were arguing about the height of a parking garatm dmh0j9 9f h54y4tk(e,-ippsbd )m czd5b4 xge. 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 h 4 ,m(5f 5- js9z4 ddmppdie9btyb)x0ck4m thtall is the parking garage?

  05.07: A snail is moving along a straight line. Its initialiod;g gv-q5.r: k4 isy 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 velocity and acceleration, respectgs- qgy 5r. :4;dviiokively, are

  04.38: A small point-like object is pulled d irv.. :ig8jpaownwards by gravity (down the 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 ai rj.g:ip8. vamount 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 no loss of energy and that it takes negligible time.

  06.13: A rock is dropped from the top of a tall :df:d. bf,usc+c /v.wf4-cmwm cyt u2tower. Half a second later another rock, twice as massive as the firstct.v:dm.mcf2 +dy fwfcs:w,bc u/u -4, is dropped. Ignoring air resistance,

  06.18: A cart is initi3;4d4e*3mjdx h a:hqky6fnzb ally moving at 0.5 m/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 1 m/s. How far does the cart travel be;63y a*j :dkh dzmqxbfh43e4 nfore coming to rest?

  07.11: A cart is initially moving at 0.5 m/s along a tra (wdnw /6xo+ou5cqz/eck. The cart comes to rest after traveling zcxn(5d w6wo+ ou/ /qe1 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 travel before coming to rest?

  08.03: A dog starts from rest and runs in a straight line with a coh(y6o53g5 higqk0: lxl8ny mevlx ,(rnstant accelerativ (xo: lhi h 56m,qre8g3k0 xyygl5nl(on 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 resistance from a height h abo*a, o o*pk+*ahi6pvblpfzf)zxp 9g65ve the ground. If the ball falls the first distance 0.5h in a time t, how much time is required to fall the remaining distance of kpo*zfa io l)p96v p6*+a*hb5xz,gfp0.5h?

  10.38: Two objects both move and uniform6,7al,r peo; q(m :aaihxmgs1ly accelerate to the right. At time t=0,the objects are at the same initial por o h1,a6 pi;agsmlqx,:7eam(sition. 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/n,b e 9 ur*vcfs;v 5ux-e5qaa3s from a 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 ground? Ignore 3sq fu-5;*r9ecn ,vbxu5aaev air resistance.

  13.10: An object is thrown straight upward. The object remaingpom8tfi 9 o1+)vgh x2tz j;z*s in free fall until it returns to its initial launch point. ph1 tziz*v)mgoxg ;+ jfo8t 29Which one of the following graphs could represent the velocity of the object as a function of time during its flight?

  14.03: An object is dropped io5; kzt qhp/wh4 tal9;nto free fall. Through how many meters does the object fall during the first 3.a;z4l5p 9khhto tq/w ;00 seconds of flight?

  15.02: A box uniformly slides 7.50 m6tkna5+k; /ohwfb p70rhaf)a to rest across a flat surface in a time of 12.0 s. What was the inahw/)hk r ;akt+ ofan06bp75fitial speed of the box when it started its slide?

  14.07: Starting from rest, a cart uniformly accelerates to a speed of 74ptzqs6u9+ jp.60 m/s in a time of 3.00 s. Through what dq9zsp +4pj6t uistance does the cart move in this time?

  14.16: A toy car initially mo+ms- eep)d4 8xovg4uuves 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. Whicusm 4 8v xp4-od+gee)uh one of the following choices best represents the magnitude of the average velocity of the car during the five second motion?

  14.17: A toy car initiall 0vacd is8wrgt3-g *8yy moves 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 accelera8a - yvd0si*t 3rw8cggtion of the car during the five second motion?

  14.33: An object moves with constant acceleration starting with velocitr 1:evd,fhkj g8x:4ofy $v_0 = 5.00\;m/s$ 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 v5vthr b;h;-ra )0l gvis moving upward while in free fall. Which one of the following choicesltv ) h-rv;b5 grhav;0 best represents the direction of the object’s acceleration during its flight?

  13.26: An object moving only tolz scrlc3 q-,1) kp9it the right completes a 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 cos)zc1 9cl3klq pti- ,rnstant 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 20.0 second trip zftq 07dld;ldnq.3jo hf 4x49with 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 magnitudx qzjd;3d9lth4.7lff no04q de 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 fro6qs4tjq6 +chy m rest. A ball is launche hq4jqc66 +styd 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 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 a robot. The robod .;dm1ie ;urzt accele r.;d ziemd1;urates at $8.50\;m/s^2$ 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 pnch 0;o 4*+qqy is7tc /(gufysosition of the ball 0.70 s after release is the same as its vertical position 4.10 s after its release. At what time is the object first at a vertical position that is one-half of the maximum heightosn(uhiyqc +7 tqsc04f*y;g/ it obtains during its flight?