What is the SI unit of momend0 pagaruo atg/x-k 81gprx5 /0;r7rdtum?

  When a cannon fires a cannonballq8e6h)/bc m6 zy ed0qfzn5 q*o, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant spe6zmq- b; dk5nwj: o*wxed. The car is open on top. A large load of coal is suddenly dumped into the car. Whawxnkdz-m j;6b*5oqw : t happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. Wha*7,oorkxk+:) z5stxonc xg(dt happens to the velx+ r zxdo )5o*(kck7gots nx,:ocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thr4n-3fksf 7 hloown with equal speed against a wall. The ball bounces 3s4 h -nklfo7fback with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum a*d qkgrv+cjsj2;/p jhr 1y.*p. How would you represent its kinetic energy in terms oryjk.vpgcj*s +2*jq;r1 dha /f these two quantities?

  If you pitch a baseball with twice the kinetic energy yohyt3zua: 3th) u gave it in the previous pitch, the maga h)z 3uht3ty:nitude of its momentum is

State Newton's second law in ter;3c)8un3t 5bqby jaa ams of momentum.

State the law of conservati-6ix6 nu yzf1/e-uzu :8gijaf on of momentum.

  The area under the curve on a Force q mm./(b8afpsversus time (F vs. t) graph represents

  Which of the following is an accurate statemsv vhn l-6fifb ,i.8u. awpn79ent?

  A small car meshes with a large truck in a head-on collision. Which of the yw+xyh;/zqa : following statements concerning the magnituhz/ a: ywx;+yqde of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sa+4rf+- +emkrxuak; nzme height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitz rn;u4faxm++k+-e rkude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationaro7df4 u*;h n7bjz q ga.kiap9(y bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very s.i*94 7q aodk; pfgu( jaznbh7lowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide an3ws6b/t bsnm .2zhwueg2 z+y,d bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. Itre u13ilh ,5y bnz7, /pxnplb: collides head-on with a 6.0-kg ob, 13yuix n:nlhe b57rp/zp l,bject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving 6j:0n/ax lr)d mvwf wrz;qkxh-uzwg7 z2, ,k:at 2.0 m/s tackles head-on an 80-kg halfback 02qw k:a)xfhrjk :, nz;u,6g/-zmw drzlv7wxrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisi:tih42g pch q mkma8* hk(9*czon, if the momentum is conserved, then which of the following statements is true about kinetic energyzcgqhmt**ci 9hk a mk28( 4:hp?

  When is kinetic energy consb*.f dc5 4to6 qyjlwp)5s 8pyberved?

  In a game of pool, th.slz5a sx2,dc e white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originallx2cals s z,.d5y. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s colluyjqdl cbho1ld: s.2 3ja 02x3ides with a heavy exercise ball at rest, the beach ball's speed af2 jc1 q.so3bax0:ddujll yh32ter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head;ga+3eqb- a*frdq eo;-on collision with a stationary bowling ball in a friction-free environment. 3e a;-a;ef+drqgb *oq If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collideswotngz -s738a head-on elastically with an identical ball at rest. What is the spesonz g7t8wa- 3ed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-o 3bm/lddafp( xo07v ds2i,l)tn with a very light object at rest. The collision is elastic, and t mo0l(s3vxb2f/tdd 7ldpai),here is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object movingry+;emq *rjt6 vt57n c3d; -q macw6eq with speed v collides head-on with a very heavy object at rest, in a frictionless environmy*m;- 6n jac rqq63wcdte7e;r5+ vtmq ent. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a vele di 7j;.il 2q.gfv+d zw/o1wgocity of +3.0 m/s collides head-on with a yellow ball of equal mass movi oj;w/+.ld7dqg.ew2vi g f1iz ng with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object movivkyyi 0n28h/*,mbplg ng with velocity v collides head-on with a very light obj0v,knb2*pg / ylyih8m ect moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the f)knwoq)id b+rx82ar -ollowing statements is true about kineti)rxk+ wqibod 2an )8-rc energy?

  Two objects collide and sti3 iwj)m hzslz (gc*w03ck together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect h,8 ulrs88et)ke drc9ly inelastic collision w9sedt, r8rl)u ce8h8 kith a
6.1 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?

  A small object collides with a largb-jkm1otbv15-z 8m1p7bl sug e object and sticks. Which object experiences the larger magnitude of mmb vso 81b g-7jut1kz-p1b5l momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected atk13z9h 8nz ul7bor m;:, mdwbb a $35^{\circ}$ angle to the original line of motion. What is the angle of deflection below the original line of motion for the #9 ball?

  Consider two unequal masses, M and m. 8c ;e4/ya-7 fdfgdygfWhich of the following statements is false?g ;-8yyd4dgeaf f/7cf

  Which of the following is ,xy) zvb25fh;8trb)tk(gp rq a false statement?

  Tightrope walkers walk within,;58ogk,sdjp xp7t;m6 n s z a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hi+yibhuh( im:r+:vvs5ga -xe: tting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explos+- :xvurgav e:hs b5 m:+yi(ihion

  Two cars collide head-on on a level friction-free road. Thep17pfmt t52z;l /jkzq-vc(ja 1 yq ww5 collision was completely inel5 jatk25 ppt/;zlq(1f71 qyzwwvm-cj astic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for +h2nhednzj)xko(dgb / 0, vz/a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 h9h1k*y- nwm+/e lklbm/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is thec- 2ikh*(4asjzy c j6z 0nmac0 magnitude of its momejhc2 4yc-*is(0c aak j0z 6znmntum?

  A ball of mass 0.10 kg is q,u6,zdql7mm dropped from a height of 12 m. Its momentum when it strikes the groum,7z6 dqq ulm,nd is

  Two identical 1500-kg cars are moving perpendicular to each other. One movesf h6aanwge4+yt8m/ +e with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of themanha+wt8f e6yg /e+4 system?

  A handball of mass 0.h fwqd1(4 1.*ow tudjb10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in tf d1u*jhotbw1q wd(. 4he momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/fqm1s fg7d-- es, is struck by a racket causing it to rebound in the opposite di 7-smfefqg-1drection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the base3cqbo0ff4lf29fp;o ab) * g4cuurql0ball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recouagc 43flbru*lp) c2;04f9q ofobqf0il speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outshf4;e6yjvo c6 d -el 4m;y-7xy 5k rd:kirv:jpide the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what speed dorldyfy --kvjoyd7 r6k4:56:mc; ; jv4 xheipees the astronaut move toward the capsule?

  A small object with mome1 u 1n+bi +b guq-n g(ba(8oh(fpfxcs3ntum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. c8ubs o1bh ngiup-afnx(+f1 (b(3+gqWhat is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), wh)sepj;tqsfkm(54trm- x y x-,o is standing still, with open arms. As you collide, while holding each other, t,p- exmmj5) (sy4qx-tf s;rk with what speed do you both move off together?

  A car of mass 1000 kg moves to the right e 3yl/o,g8pkz along a level, straight road at a speed of 6.0 m/s. It co,3y8pk/g ze lollides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped cciym)3(i rrf1pv6d 2bar that has a mass of 1500 kg and they stick together. What is the speed of the cars after ypvm ri213i6)( rf dcbthe collision?

  A railroad freight ca*n,jpc2;omxw 9ki ohf;a6p 9 br, mass 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It awp*,jok 2;;pfm9x 6i bnhc o9collides and couples with a 50,000-kg second car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal o;k 6: fifu(v,crp+ihtrack with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How fast will the car be moving after (,:c+k opfirfi uvh6;this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/ssb-z5eg: 5lo nqajwu860 apx 8 (with respect to the log). With what speuabg n6pj o 05l:w-5sa8q8zxeed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force vnsa :2xr qcj23ugy-2suddenly increases to 15 N and acts for one more second. What is -2rx:va 2qujg3ync2mpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg objex7(m5p,lkk yyg8svw c0br 1o/ ct. What is the object's change of k 07vblsykyo 8x5/ c ,g(m1prwvelocity?

  A 2000-kg car, traveling to the right ac*mjdqw3lh, *+:q29 ibhdsz f t 30 m/s, collides with a brick wall and comes to rest in 0.2qjh9hfm*3l i2:* q s+,z bddcw0 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/ah3vs1p g;i6s s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10avh1 si s6p3g; s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of t6o2 qpf ;0:yi/ uh:sqcfwzg(dhe ball right before and risc 6 g fqf;/:qd(wp0:y2uohzight after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullrryc8t zsy 1-a2*+ 8 uxnnwc 3+e9ztfxets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. W -*ye+8znx923ux8cy star+r1f w nctzhat is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock trd ghz(68jghkad gk)92fb 4 h0he door dowd)fgb0gk48( jzhk2dh 9 ga hr6n. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipt0 /ts3rq0t3jvv3 .sqja v -igm ;:tufe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what 0-0qvt; gmjtrut3 a/ js.3v :q3sfvtiaverage force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3th dl a/9/8kqt.0 s, when fired straight up. What average thrust force does the rocket hql8/9attdk / engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at resthb/x3+ e;euqk in outer space. They push each other apart. What is their separation after the lighter asb3k ;+u/ eexqhtronaut has moved 12 m?

  A 3.0-kg object moves to the 8s 9xch;cm 7tk (oy)tzl3vf- p6rsp;eright with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m 3pf- sk8)7t9vr6h;(pxco; ce yzl tsm/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocitq5(ugo)a7 bocy of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kgao( )g5ub7coq object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block ati +wxjqio65e0 t-3y wf rest. The bullet emerges (the bullet does not get embedd+ y- 5jotxi3f60w eiwqed in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at :iz* cb4eslp1rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals thp*sz:l i4ce1be proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stational3ajep+tdueptw4g 9+ pr;c;f-z l8o3ry ball of mass 100 g. The collision is elastic. What is the speed of each ball dpja letr3p-8+4+lpz;39 e;t uwgfo c immediately after the collision?

A ball of mass 400 g mo5a g/bdsmcbs+ ;y -ny1;etfj)ving toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic.)+g5 ty-/y sjcseb1dabf;;nm
(a) Determine the velocity of the first ball after the collision.
(b) Determine the velocity of the second ball after the collision.
(c) Is kinetic energy conserved in this collision?

  A 2.0-kg mass moves with a speed of 5.0 ; up;/lejo 9mkgbj)y (m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the co; ;ejlu) j(gy9bk mop/llision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on ir r-;x7jluo,kzyun 6l3 q; x:fn a perfectly inelastic collision with a stationary 2.0-kg mu nxlk:-jr6 7 lz;r3xuo,fqy;ass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling withg(jq6.h;s kau+ny ll7 a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initk 7y6qs hl(ja.n;+gluial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical directionpx /u,aiu)y6c buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/blou6,) yp uaxci/ck combination moves vertically upward.
(a) Determine the velocity of the bullet/block combination at the point of impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg ca5m:mk mg 1b*btr traveling at 60.0 km/h south. The two cars stick together aft:1bbtg5mm k*m er the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelin4)yxxr4 ycta ,g at 90.0 km/h east collides with a 3000-kg car traveling at t)4xy, xc ya4r60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surf oa12+prjpa4h ace. Object A moves east with a momentum of 24 kgm1 pph2 roa4+aj/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, t4)r vt;p( r.dxceip2is moving toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What i; e(2 rt)t x.rcipv4pds the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass s2xmk36mbw5( /kc*jul4mmg or3o g 7uaits at x = + 21.0 m. Where is the center of mass on t*gljma g3kx2(ubo k5wc3m r4m76o /m uhe x-axis?

  The center of mass of a two-particle ssr(fg.dpyy:gk : 1,d y/xej)4ex6omkystem is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the loca s:rjkgdfgey( 4md6o 1/e.,kp :xy)xytion of the second mass of 3.0 kg?

  Three masses are positioned as follows: ct/ 7qigomxj/al,55lw g 4hs82.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordi4 ,i swlq5oa /xc8j7 gg5mhlt/nates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.06xvq*/xf . 6za/l u:5bxgfvpk kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, p5/6q xx: 6*vuxlk.z b/vfgaf-2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is polfd(lyk35g7kvkq t8* sitioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the sysdl87l5 3vyk*t gfqkk(tem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg includ2/b qkvby+ 2l1czzs4xing the fo4xzbk lv /sz+b 2yqc12ot when the leg is stretched straight out. Assume the person is 1.60 m tall.