94.01: Starting from rest, object 1 falls /9j+jv uds+zxw)ao b ewgpwa 1id8,9 7freely for 4.0 seconds, and object 2 falls freely for 8.0 seconds. Compared to objectd jp waw7 8xub9+oi+adsg,vj/)e1 wz9 1, object 2 falls:

  94.02: A car starts from rest and uniflw sk*l) 1jmo,x.39uaq;akl uormly accelerates to a final speed of 20.0 m/s in a time of 15.0 s. How far does the car travel du9a l*,a1ku3ujk;l . ml)qwosxring this time?

  94.03: A ball is thrown off a hitz6 ruqaw42p 38*m 9m 4devjnfgh cliff with no horizontal velocity. It lands 6.0 s later with a velocity of 40 m/s. What was the initial veloczuemr * 2wp4adnqmf8v64jt39 ity of the ball?

  95.27: A rocket near the surks++u5i:gn/z bs *t lcface of the earth is accelerating vertically upward atb*sc:gkl5n z/+ius + t $10\;m/s^2$. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:

  95.13: A freely falling body is foun1bzdy2vowu:gt- uag1acy5. 5 d to be moving downwards at 27 m/s at one instant. If it continues to f .aw:ogv5bcu z5yyu1t-g 2a1d all, one second later the object would be moving with a downward velocity closest to:

  95.39: A car starts from8dyhbe8n m1pt43y*ff.:ktlf 2- kn fn 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 fwt9:h 14mwy qof a building strikes the ground with a speed of 30 m/s. Assume aif4 twyqw:h91m r resistance can be ignored. The height of the building is approximately:

  97.09: At a certain time, an object in free fall has velocity 4.0 m/s in the u2 qrb sdf/.na7pward dird.fr 7s2nq/a bection. What is the approximate velocity of the object one second later?

  98.14: How long must,, s,yb0 n)j)e cr)f2yc.hge fzuu -ql a $2.5\;m/s^2$ acceleration act to change the velocity of a 2.0 kg object by 3.0 m/s?

  98.15: A freely fallinz3l:::vs ziu fg object is found to be moving downward at 18 m/s. If it continues to fall, two seconds later the object wouv:l:z sz3i :ufld be moving with a speed of

  17.02: A small object is released from rest and falls freely for 461xiool 0u8lc,ch y *l.00 s until reaching the ground. What was the height above the ground iol8c *l h,l oc61yx0ufrom which the object was released?

  11.06: A ball of mass =0.100 kg is launched straight upward so tht ve.*)6z ycm:u; jcojat it rises to a maximum height of 12.0 m above the launch ev):mj. ccot6ujzy; * point. Ignore air 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 mass =0.100 kg is launched straight upward so that it ri3yrao d))ipvio*e )8pses to a maximum height of 12.0 m above the launch point. Ignore air resistance. Approximately how much time does it take the ball to reach the maximum heig* )oi e)oa d8p)3piyrvht from its launch?

  98.31: An object sliding down an inclined plane has speed 0.40(/w6bj nrbh: n m/s two seconds after it begins to slide. Approximately how far does it travel in three seconds?rnw /hb6jb n:(

  98.40: Coin I is thrown upward from the top of a 100-m tower with a speed oiul 1+ec. u76s0f mldceh4* sff 15 m/s. Coin II is dropped (zero initial speed) fr1+ e07lfh scie6 sucf4m.dul *om 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 twicea1+a p)*pr0qhe n ;sxlqqd2q1 the initial speed of another, how much higher wil x2qdh )qlrq 1q+; p*sn0ap1ael it be at its apex?

  02.30: A box falls to c8ouqt 4v 8v+ibt3:,atumhr3the ground from a delivery truck traveling at 30 m/s. After hitting the road, it sliduo8 h r3ait cq:v4+m,b83utvt es 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 nesw0 l3avk8(84tkux-4sgourus8ip /r ar the surface of the earth. After two seconds what would be the direction of the displacement, velocity and acceleratits 4gl(kuvk8ur8-3/0ip 48 axor suswon?
displacement velocity acceleration

  04.10: Three stones of different mass (1m, 2m& 3m) are thrown vertically upwar 8/a*e,9h r3fneweaqq d with different velocities (1v, 2v& 3v respectively). The diagram indicates the mass and velocity of each stone. Rank from high to low the maxiew,h/q* 9a8nee fqa r3mum height of each stone. Assume air resistance is negligible.

  10.25: Two point objects are launched straight upward with idfs */c. h3gvclentical linear momentum. Object 1 has mass M and reaches a maximum hgfcl */c.s v3height H above the launch point. If object 2 has mass 2M, what is its maximum attained height above the launch point in terms of H ?

  04.28: A rubber ball bounces on the ground as shown. After euqrwom7279 . /itvvent c,baa*9m +diach 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 se9nco /tve.ua w9 mm+ a* 2ir,7vbidqt7cond 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 kx*05eb. lsem fall achieved its minimum speed during flight. If that minimum speed was 15.0 m/s, what was the projectile’s init.0x*me bsle5 kial angle of launch from the horizontal?

  05.02: A pebble is dropped from a 09j bb w:jexl4high vertical cliff. The collision of the pebble with the ground below is seen 1.50 seconds after the pebble is dropped. With what speed did the pebbb:94b wx0jlj ele hit the ground? Ignore air resistance.

  06.03: Three students were arguing about the height of a7m.frc7fnk i , parking 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 senimf.7,7 k fcrconds, approximately how tall is the parking garage?

  05.07: A snail is moving along a straight line. *fhea 4qwb 3:wIts initial position is x0 = -5 meters and it is moving away from the origin and slowing down. In thiw :f3w *4ebhqas coordinate system, the signs of the initial position, initial velocity and acceleration, respectively, are

  04.38: A small point-like object is pulaxll4 u)i4ni 4x2z v(fled downwards 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 amount of time (T) necessary for the object to be released from rest at point A and42fx(u 4lx)l4i nvazi 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 eq* +sblvoz20tall tower. Half a second later another rock, twice v +sleqo0*2bzas massive as the first, is dropped. Ignoring air resistance,

  06.18: A cart is init 7;bc)4n*evee; xia e 0oasvpy )/xe.zially 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 befse)ap7z/.4) ;a ceb0 exyixone *v;ve ore coming to rest?

  07.11: A cart is initially moving at 0.5 m/s along a track. The cart comes to a2pw 2ju; 8,bhttbd1crest after traveling 1 m. The experiment is repeated on the same track,;t,2ucj8 atb12hpbw d 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 r zkr/vr (pw 2iqt)i()oy 9m.aruns in a straight line with a constant acceleration of )(9a.rtwy/krqrmi (2z vipo) 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 heigh*e6i dvimj (l;88y9sjnwt-qq t h above the ground. If the ball falls the first distance 0.5h in a time t, how much time is required to fa68j98l tjy*i i-w; nmdqveqs(ll the remaining distance of 0.5h?

  10.38: Two objects both move and uniformly acc,orram6g9l7p msqf *d0.uet ( elerate 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-half the acceleration of Object 2. After some time T, the velocity of the two objerr(ld9 ufmo7mp 6 0 sg,e.tq*acts 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 from7 7nldf23vvs 2xtasn3 a height H above the ground. The object reaches the ground with a 7tvs3x2d lvn3sfn2a7 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 thrb) ui :8yi/ vz3wiqv-pown straight upward. The object remains in free fall until it returns to its initiq- vui8 /wibivz :y)p3al launch point. Which 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 into free fall. Through how many meters does the objf*)gd5 qj(jw+ pvj*d iect fall during the first 3.00 sec)dj5dwf( jq+ pigv* j*onds of flight?

  15.02: A box uniformly slides 7.50 m to ) te/ +9lfva0hv,vbmqrest across a flat surface in a time of 12.0 s. What was the ab/0hl vv)ft9e, vq +minitial speed of the box when it started its slide?

  14.07: Starting from rest, a cart uniformlyyid. vfs*f:by1ke+z1tj ;6ggc *b ye) accelerates to a speed of 7.60 m/s in a time of 3.00 s. Through what distance doeg bfb;.6efk 1ed cyyy)st+ v:ig*1*jzs the cart move in this time?

  14.16: A toy car initially movu0ix3efi4k f c. 8.btces 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 magnitudci .ctu i3084fbxf.eke of the average velocity of the car during the five second motion?

  14.17: A toy car initially h n:kee8::e id bpyjka ))7(rwmoves 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 averag(ekp7j nha:w kry:i e8) ebd:)e acceleration of the car during the five second motion?

  14.33: An object moves with con457nbuq ljzy:stant 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. Whicdpq s yflkw/6crb40;;h one of the fyp /rfb4l6 s k;cdq;w0ollowing choices best represents the direction of the object’s acceleration during its flight?

  13.26: An object moving only to the right compln:6c p+ 8i( ,wcvd rp8qrvi,db5-akc vetes 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 mov v bv+inp,d,v d8wprca(qr6- icc :8k5es with a 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 20.0 second trip with an i +o16w+icpr2c-fhg eaverage 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 accelec ic 1r 2egohp-f+6iw+ration 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 resy,1ty mhqd6m2cc1tdbwm 2 iy3t. ( be9t. 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 than the initially dropped rock, what is the speyy( qdy162t9ceib ,c1tb h 3w.dmmm2ted of the ball relative to the rock?

  16.36: On a straight road, a self-driving caq5t1 - r8pxm(d1e euc b9poh,c se(n)ur races with a robot. The robot acceumo-1s,c q pd19ce(8hexbp t5ren( u)lerates 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 launc +dc;w,+iypc6gayfe: hed vertically upward. The vertical position of the ball 0.70 s after release is the same as its verticcy+g6yfw d:a ;e+,cpial 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 height it obtains during its flight?