What is the SI unit of moyn6ihqm9 xb,/ (;a w+r f1dtaamentum?

  When a cannon fires a cannonball, the cannon will prr *4v r (/6z(jzhnlurecoil backward because the

  A freight car moves along a frictionlescg z+h;7x if,b niml,))bgx5yx,4p jps level railroad track at constant speed. The car is open on top. A large loa7nf,i +,4c)lx; xizmy 5hp pgxgb)j b,d of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on n,1ia ydlia i+0v*b00wnp0yefrictionless ice. What happens to the velocity of t n0y0i p+i,i la00b*eaw 1nvydhe sled?

  A rubber ball and a luvm8p9jv7zuqgz1/of /gyjk+ +r p) i2emp of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum chan me1gi u)2v7o y/8 gpz zq++jfr9kjp/vge?

  A sailboat of mass m is moving with a momentum p. /js(rrl/x1 c x3ncf; /fkwoe( How would you represent its kinetic energy in terms ofelck (x sw;n /xffr3o/c/(j1r these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the:a8e s zrmim0or8n 40i previous pitch, the magnitude of its mom8:08rma o ni4 r0zmsieentum is

State Newton's second law in terms of momenwqu)gu jwfa( n8t-lhzf(3d3;/lf+ohtum.

State the law of conservation of mombn2 65f5pj)ooksek0 , 4lx hguentum.

  The area under the curve on a Force ver) j4hi4v gqt7usus time (F vs. t) graph represents

  Which of the following is an accurat56zhem x,jp8, j1ptie;f p6z cyh4k,ve statement?

  A small car meshes with a lauzb z - yl27d98)bvijcrge truck in a head-on collision. Which of the following statements concerning the magnitude of the averaczy7i2z jvdbu-l) b98 ge collision force is correct?

  Two equal mass balls (one rkclw6ra xx .s4yko8w a(s26 f4ed and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision w6 6 (ayrfklosac8wx. 2s44xkwith the floor?

  A Ping-Pong ball moving east at a speed of mlv85qrfg b49p,o nj3 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling3rg4 8 l5 vp9j,monbqf ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear mohbhf1k1hc z1 4kv83 c.ab /tohmentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-kinvi-8 0 c.3di -6iq xthdzp3xg object moving to the left at 2.0 m/s. Which statement is cqxix 6hi-i3.v pt03zcndid 8- orrect?

  A 100-kg football linebh ihn n0g 2xbc;0mj0e6 1fhdh*)rz4y8l0xgebacker moving at 2.0 m/s tackles head-on an 80-kg halfback runningigd8)h04 nh0rymfx*cg0l0; njhxebh1 b6z2 e
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conservd1wyee( u 6.eqaj z/ud7;d2uged, then which of the following statements is true about kinzd d u7/;e g.qde 1jy2w6euua(etic energy?

  When is kinetic energy conserv-mrn6md vla;4d5hnvx.y- ty+ ed?

  In a game of pool, the white cue ball hits the zksy)t0-7lns vd0d3wld 0 * mp#5 ball and stops, while the #5 ball moves away with the same veloc3)skpdd*wtdns-yl 00m 7 zvl0ity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides witp(r (h4flmp.o h a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatel( po mrlph(.f4y,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collis -0hqclfa awg34y(1k aion with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball im( acl q0awgya 1f34-hkmediately after the collision is

  A rubber ball with a speed of 5.0 m/s collr)tq5 g-n b3ttides head-on elastically with an identical ball at rest. What is the speed of the -n5)t tt3b rqginitially stopped ball after the collision?

  A very heavy object movxq8epe wb9 7,ming with speed v collides head-on with a very light object at rest. 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 collisio e wqepbx,79m8n?

  A very light object moving with speed v cod *cp:a68cpv(5vjqe d llides head-on with a very heavy object at rest, in a frictionless environment. The collision is al(cd p 8q:j5dvv6p*ec amost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a vel.pcds:7 ygu(t4 gbie ;bp5z(iocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s(z7.eu:g( 4gbicsiybpt d p;5. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-ppq s.6nklme 4*wdz 5br)dt+ 2on with a very light object moving with velocity -v. The collision is elastic, and there is 4pln2emb p) q k6rt.wzd+s*5d 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 ofwneg ;zp6pll1d4 o0: c the followi ;46n:lowde c pzgl01png statements is true about kinetic energy?

  Two objects collide and stick togeu-z j.fd usor.jjc 75(ther. Kinetic energy

  A 3.0-kg object moves tot8 3c383vv2qulyzsvzd3(gbq *src7m the right at 4.0 m/s. It collides in a perfectly inelastic colliltzdqzvv(s 3u *yqcg 27 8c vb3r3ms38sion with 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 large object and sticks. Which af.0 j a .h8qd5.siae by)fe0l ahra01object experiences ths1ea. b8da)j0ie q5 aah.0yfla fr.h0e larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at6 (7nircf7gp+ r j67meejv x7y 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;4y2yoj zgrd. . Which of the following statements is falsy;jro z d.y4g2e?

  Which of the following is a fal6uawp:*7( u tybqi3pp se statement?

  Tightrope walkers walk with a lls z0 in0cilld67:.e qong flexible rod in order to

  A plane, flying horizontally, q7/setfu 7cb:releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the exp/efb s: c77tuqlosion

  Two cars collide head-on on a level fricly9uioyn*4 bkw 0o2 pjx9;l)z tion-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this syiyp lnxu9)z kljbo*;2y4w 0 9ostem's center of mass?

State Newton's second law for amd(abjwum1,n0 p0f9e system of particles.

  What is the momentum y)6m. l kgu-cj.fhik92x :lueof a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/an ci86/ron *bs. What is the magnitude of its momentumnbc8oi a 6nr*/?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it 2 gmo8sb6ku ( d+mb;myp xw+uc1ru1k) s16ymcm81upbkok d g mxr )u2;s+ w(ub+trikes the ground is

  Two identical 1500-kg cars aox6y ji38, b e/suc5r9 4s30uvsdqbtjre moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum o,8jeqj 4 6 3ixubbs9o5y3uctsvr0ds/ f the system?

  A handball of mass 0.10 uj zfjeuzb/ 05l9v; -6wwi3 (cdfzes/kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whatlzcd3j zjevb;f5ui- s 0(/uz/e 9fw6w is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spe. cs p )8gktsu4uwd 7kc7ed78ned of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is ts ngu 8ps.)d87k 4cdtec7k uw7he change in momentum of the ball?

  A 50-kg pitching machine (e,o7h8xlcj7u4-sa sq wh mrh9n *3v9ivxcluding the baseball) 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 rs, ho3lam j7hrn749vhc *v xqiu9s8 w-ecoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walwbush d+a/.3 bnth 0a8king outside 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 does the astron+nub/a0 . htadw shb83aut move toward the capsule?

  A small object with momentum czcr5c2fnvkdp 09q4 25.0 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. What is the magnitude of the large obj42pn0d 5cv zc2cfq rk9ect's momentum change?

  You (50-kg mass) skap2ah6j b03ku fte on ice at 4.0 m/s to greet your friend (40-kg mass), who is standi 6kubhja30p2f ng still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to tht2m/ cx*kdcj*e right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 m *c 2dkc/j*txkg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car th:o9i4g cxdrczg8bc(2at has a mass of 1500 kg and they stick together. What is the speed of the cars after the collision?r2g cib9gzxc( d8c4 :o

  A railroad freight car, mass 15,000 kg, is allowed to coast along a le 8,pz1cyvc6/4yylcbppj ;ks6vel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakes released. What icvbc8/s,6zp 6p1l4yy k; pjcys the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligibfw8 ,72nq o ;l:bknnwlle friction on a horizontal track with a speed of 10 m/s. A 70-kgfown7qk , :l8wl2n;nb stunt man drops straight down a distance of 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate+m/rs kho:py* 0zu lz1 of 0.80 m/s (with respect to the log). With what o:0kr* zzmlh u/sy+1pspeed does the log move, with respect to the shore?

  A 4.0-N force acts for f 9 5i,tlga,zf9bb*t: ipw;fb 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What i,5 p9tff*,aibfg:ltb ; b9 wzimpulse was imparted by these forces to the object?

  A constant 9.0-N net/0.muodthgs ) force acts for 2.0 s on a 6.0-kg object. What is the object's change of velocuth / .go0m)dsity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wc ad 9txmo;*yo;m,+8w .zuhqr2 )ekhs ith a brick wall and comes td r cz,;*ysmk uatw)h.eh o;m29+xoq 8o rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. 0liu t,m;rto,)m u:4asek nl, -nr*wfYou hit the ball back along the ,4 r),wn atit*u,fosl-m :0u;mknler same path, and at the same speed. If the bat was in contact with the ball for 0.10 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 jeya(4b 4zl/ wthe ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectivelyywaj 44e /bl(z. 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-gr/7v obkl:.pg sam bullets, with a muzzle velocity of 750 m/s, av :ol7sp. bk/gt the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the doorj+sg 9-0:bcz e*a fbgf of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimusf c f+0g* gzeb9b-ja:m velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120,-b- 2*bxdms kj1or-twk i4jt kg per minute. It falls 3.20 m to the ground. Assuming txrj-jbw1dm kt 2 i-o* ,b4skt-he water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achiev t3d*ik75 o )uz*9cn-qusqtm*(opwo *h i4eqhes a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocketmqo(hc*to -5u*7*ie p)dw 9z4tinho*su q qk3 engine exert?

  Two astronauts, of masses 60 kg and 80 9skjg3guhen .p-wlnif2-*serw.s: :kg, are initially at rest in outer space. They push each os-*.g 3l.ee-j h9n: kinsgwsu p:2wrfther apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in mm xh,ym;ka :cc(1 ei4a perfectly elaste( kmim c ;,y1cmxh:a4ic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s inahyvml55ga7k0 twqesgy (0(; the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What iss0lv ye5 a amg7tqkh05(gyw(; the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300vcg-/ff 6 ; iuc6e/*jzki) zsii1njt0 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) withjnu gef)1-j/*ci tizs ;fc6kvz0i/6i half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest9bg01 y5 1 vyvxi1obwb, 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 the1vygi bb b11v9yx ow50 collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on widb 7kq x6fp1 ke8qb+r+th a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the cfx1qb+78 bp rd+ qk6ekollision?

A ball of mass 400 g moving toward the east with a speed of 3.70i4a-hqdz:s 7k b.j dngs6i4tw:-f0hy m/s collides head-on with a 2-. ::6tw -k hqj04s gf dz7asd4yniihb00 g ball sitting at rest. The collision is perfectly elastic.
(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 m/s. It collides zo-.xjy4o+xn s:hv9-w d/ - 5 glfmuvrhead-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the massesy+o gn: 4xz --9mf dxvv-r5 h.lsju/ow after the collision?

  A 2.0-kg mass moving to the east at a speed of g cf(a x47n0imjw,yk 9w+qr- ehj(i g24.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is jfh(7xj, igrkai wn(-4cygqm92 0+ ewlost during this collision?

  A car of mass m, traveling with a velocity v, strikes a pa/9 +rl2ullh, ;mthbvt6lwm5x rked station wagon, who's mass is 2m. The bumpers lo9uvt;+5r /lh hlmm , lwx2l6tbck together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a v2 d/(tftix: p6dt:nvyertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/bln2d:yt(:tdtx p 6if/vock 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 car traveling 8 atb1og/gio vma. n 07wo39jjat 60.0 km/h 8w17 a9bo n 30omao/t ggji.vjsouth. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h eakhbya 92vi qt 6e). 2qcpkwrc;ri6)q3st collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What i3ktc2 iqr 2eq;b6ckaq)yv9rpw) 6 .his the direction of motion of the cars after collision?

  Two objects move on a level frictionlgvkb e27lp4v3abt 6p; ess surface. Object A moves east with a momentum of 24 kgm/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 collisil g ;pvtvap3beb6274kon?

  A small bomb, of mass 10 kg, is moving toward theb;61kw,4g le /bhcj0utk2 yqlt1kom; North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment 2c,ukwb 4e 6;y01t1lkbmhqgotjk ;l/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 is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, an9x+dke b3jr 8ztk3 xm4d a 10.0-kg mass sits at x = + 21.0 m. Where is 9zek3 ktmj 4xbd3+ 8xrthe center of mass on the x-axis?

  The center of mass of a two-particle sysl/l45i h3*k* p u8nmsm v-hrqvtem is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the l- hv*l4pukisv3 *h mlq5n8/rmocation of the second mass of 3.0 kg?

  Three masses are positioned aha ei w;p)7nn-/cxj9zs follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center e-wxcjp; n9n/h7) za iof mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1. zds sklcut a176;i i(q9ad4p50 m, 1.0 m), and (2.0 m, pdl7;i kdq6( s t zua1c4i95sa-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 ;ejd7i2edcc py1z)-n8 elke6 positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three masses beieci e1dy)kd cz7le6p82 ;nj e-ng located at the origin, (0, 0)?

  Use Table 7-1 to calculate the pg dx sne7nh734osition of the CM of a whole leg including the fond437 hexnsg7 ot when the leg is stretched straight out. Assume the person is 1.60 m tall.