94.01: Starting from rest, object 1 falls freely fore.p lp.kzwv57 4.0 seconds, and object 2 falls freely for 8.0 seconds. Compared to object 1, object 2 falls:. ez. wk75lpvp

  94.02: A car starts from rest and uniformly accelerates to a final speed ofci3eusws3su 1p hu8(kx 0+gw: 20.0 m/s in a ti 3:s3sh 1kuu0w+wpguex8isc(me of 15.0 s. How far does the car travel during this time?

  94.03: A ball is thrown off a high cliff with no horizontal velocith*ze+g 1is.bay. It lands 6.0 s later with a velocity of 40 m/s. What 1*i g+bes.h azwas the initial velocity of the ball?

  95.27: A rocket near the sdh :3imv(. and-s/u giurface of the earth is accelerating vertically upward atus3 gi-m: n.vhdda/i ( $10\;m/s^2$. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:

  95.13: A freely falling body is found tr5,+lwr4ia -un snm( lx t0j2yo be moving downwards at 27 m/s at one instant. If it continues to fa ylmsri2+rn-t ,5u(0a l4 njwxll, one second later the object would be moving with a downward velocity closest to:

  95.39: A car starts from rest andwilt-/jf:*o; -toei x 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 o 8ch)6v) wjha;a wrc)qf a building strikes the ground with a speed of 30 m/s. Assume air ;h8hwq)6 cj )a vawrc)resistance can be ignored. The height of the building is approximately:

  97.09: At a certain time, an object in free fall has velocity nv/; /cnud :w,hvt n8s4.0 m/s in the upward direction. What is the approximatedv:unvncn;/ / ts, hw8 velocity of the object one second later?

  98.14: How long mustqbn3)olxc) i4 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 falling object is found y*3di4dga e 69l iejh7p.red+to be moving downward at 18 m/s. If it continues to fad*liy+aph ede39de.r6g 7ji4ll, two seconds later the object would be moving with a speed of

  17.02: A small object is released from rest s:fucay h1t+pq b tdk *:6xz0)and falls freely for 4.00 s until reaching the ground. What was thet*p6d1bq+hka s:: xfu ytc)0z height above the ground from which the object was released?

  11.06: A ball of mass =0.100 kg is launched straight upwardua9i/ 9 xj+aip so that it rises to a maximum height of 12.0 m aboveia9u ijp +/9xa the launch 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 stra(fzsh.ea/i v+ xp1z1eight upward so that it rises 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 me /se.+(f pz1 hvzai1xaximum height from its launch?

  98.31: An object sliding down an incline-;idb(x6/d 1c+pg ;w s2f0lyckvyjlm.0xzv ad plane has speed 0.40 m/s two seconds afte; vcf+/px62xkz-s (c 1bl ai0ddly;j.g0mwyvr it begins to slide. Approximately how far does it travel in three seconds?

  98.40: Coin I is thrown upward from the top ,n om+- ;tfa g89aqeyqof a 100-m tower with a speed of 15 m/s. Coin II is dropped (ze-f9o yqneq 8ta,;a+ gmro 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 wu 7x:z),p8mwnz iesp7ith twice the initial speed of another,isxpwz,7 en)7:z um 8p how much higher will it be at its apex?

  02.30: A box falls to the ground from a delivery truck traveling at 30t3ikpkro5p+38.ke nt m/s. After hitting the road, it slides 45 meters to rest. How long does it take the box to come38o5+. pept tn3kik rk to rest?

  03.29: An object is thrown upwards with a velocity of 30 m/s near the surfac-nz.k kd c4 u3mawig e(( d9(px)ibka-e of z)de ic 3 4u 9pxkgaw(mdkk( ib-(-.nathe earth. After two seconds what 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 vertically up i9stsb):b k- vr,ci2pward with different velocities (1v, 2v& 3v respec,cbis)k9t bv-s :ri2p tively). 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 objects are launched straight upward with identicalw8v(3 qj4;mg caop2b 9 usqc,i 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 attaineub oqw mv(s;i3qp4ag j28 cc,9d height above the launch point in terms of H ?

  04.28: A rubber ball bounce;se463sp,c9o /r frnzllqrq6g s(gn9 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, what would be the time between the second and thir 96gqoec pg fl/3lsrs;nsn,r6(zr q4 9d bounce?

  16.21: At 1.94 s after launch, a projectile in free fall achieved iu+ g2lj /hip:xu9;ksats minimum speed dua2;ksh:l/x+ uupgji9 ring flight. If that minimum 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 high vertical cliff. The colf1)msk5khe q 4x-mur j,7ens o8+m ud,lision of the pebble with tkq )s ,7 k1uemu8rhs5fe ,od4m jn+xm-he 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 parki6hrmmo *k/i8qf-56 j ujba0gzng 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 tall5-6o*uq gm jm60fa8zj b/krih is the parking garage?

  05.07: A snail is moving along a straixf n);(l 0lcc*ffjj0 dght line. Its initial position is x0 = -5 meters and it is movi*;dnx(j0ff lcl 0) cfjng away from the origin 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 uy s3 jsv;d 97c-iify 3:eyy1dpulled 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 ;ieuvj1 9yy:i3 3cdfy ydss-7 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 no loss of energy and that it takes negligible time.

  06.13: A rock is dropped from the top of a tall t14,3xftmnte jby9w 7vower. Half a second later another rock, twice as massive as the first, is dropped. Ignoring air resista4m t t,fjw3ey7b xn91vnce,

  06.18: A cart is initially moving at 0.5 m/s along a trac 692co xifaveh/;) 2ylvuxv.uk. The cart comes to rest after traveling 1 m. The experiment auv c2 x6 2e. /xhyv)o;uivfl9is 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?

  07.11: A cart is initially moving at 0.5 m/s along a track. ta8xy*+mi*xew321 wnbi zu69g/cb*q i7h pom The cart comes to rest after traveling 1 m. The experiment is repeated on the same track, but now the cart is initially moz+bwq bpg7/xm1 uai* 2i9i3nyco6*xmwe ht*8 ving 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 withze,vdj m;p0j 4 a constant acceleration of d mjz,ev4p0;j 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 atpa q;f.3 o -u.5 bsf*awxnekp2 rest 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 r3enf2 ;xpwaaqp bs*f .u5ok.-equired to fall the remaining distance of 0.5h?

  10.38: Two objects both move and uniformly accelerate to the right. A q.yd+x )rcl,74w9 s+kuhins ht time t=0,the objects are at the same initial position. Object 1 has initial speed twice that of Object 2; Object 1 +hcy4dq9x .h )ru ,sw+nk7ils 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 throfa bv0g20*yo7/ hjaqh2t m 7tlwn horizontally with speed 10.0 m/s 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 represef2yaq*tha/tj0g772l0 v omb h nts the time of the object’s flight to the ground? Ignore air resistance.

  13.10: An object is thrown straight 9yon+z5/skh ;* 0tkeh lspo( aupward. The object remains in free fall until it rehkhe9;nz(s+a t*y 5 okol s/0pturns to its initial 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. Throughmvw, z5y7kv:cdqk 41g 4r*g zf how many meters does the object fall during the first 3.00 seconds of flizc zg4r :5mq dv wyvgk417kf,*ght?

  15.02: A box uniformly slides 7.50 m t.i7d(8rbo o cfo rest across a flat surface in a time of 12.0 s. What was the initial speed of the box whc8rdo(fb7.i oen it started its slide?

  14.07: Starting from rest, a cart uniformly accel/drkl ;u yg0+oml7qx2erates to a speed of 7.60 m/s in a time of 3.00 s. Through what distance doe0y27 lkloumqgxrd +/;s the cart move in this time?

  14.16: A toy car initially moves to the right at 603 uaqhy2ep q;/.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 aveu ;q/pa2y3 ehqrage velocity of the car during the five second motion?

  14.17: A toy car initially moves to the right at 60.0 cm/s. Five seconds w aaq46yfvi/hj4b3: i3f,ns 3q xrf7 xlater, the car is moving at 40.0 cm/s to th :7qhjxyrbffni 3 6ai/qv,4a4xfs 3w3e 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 motion?

  14.33: An object moves with constant accelerationf+7 blr( 7 (7hmb5vm6woyepoq 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. Wh;lz :e,0rr am)kc 9rplich one of the following choices best represents the direction of the object’s acceleration during its krp r9;zcml l)re:,a0flight?

  13.26: An object moving onu thq)tas9 b1:ly to 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 constant velocity of 6.0 m/s for 12.0 seconds. What constant acceleration must the a:b9thtsq u)1object have during the 8.0 seconds of stage II?

  15.32: An object moving along a line completes a 20.0 second trip wi/lkkz u 43bel+th an average speed of 10.0 m/s in two stages. During stage 1, thk 4 lue/b+zk3le 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 roc)-eu 1*d.fx:crn g9e twwsdw 5k 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 .sg:feurt w-1d9ex5w)w* dcndropped. 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 robot x49hiu 3-llosr yta8- ssr+)laccelerates at soh +4ilxl9arys) l-s3u8-r t $8.50\;m/s^2$ 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 -(av2 c s.qpvzffpnv7-j4), wnti da7ball 0.70 s after release is the sac )v-wf4jnav(pid2-7atqz n.f p,sv7me 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 height it obtains during its flight?