What is the SI unit of m b8.7p0yeh /,( . y;qprxyefjo hkiyu:omentum?

  When a cannon fires a cannonball, the cannon will recoil backward bec b8b8sbu1re i3*9v bopause the

  A freight car moves along a frictionless level railroad track at com re+ e/kk,.mfnstant speed. The car is open on top. A large load of cokr e.f e/mmk+,al is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled whiu n-6p6ek dq8gdw9w- w co o4oa-z5zx(le sledding on frictionless ice. What happens to th-ok4 zd wo5wcpqa8w ogeu- 6xn9(-zd6e velocity of the sled?

  A rubber ball and a .jzhqadv 8k /h .5jz 7dw1)ohylump of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same q z1. dhj hwdjzoh 8/.y75av)kspeed 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 p. How would you represent itshrx -k*)bp6c y kinetic energy in terms )rx6-k hb*pcy of these two quantities?

  If you pitch a baseball with twiczlb k5.iw 4kkbw4i;xtmz1 +t:e the kinetic energy you gave it in the previous pitch, the magnitude of its momentu1lk4 xwi ttmzk.bk5zw 4b;+i:m is

State Newton's second lp 5snaq**u9j5y4auzj aw in terms of momentum.

State the law of conservation of momentum qeo4g6 2qbet grky( r7-:scf,.

  The area under the curvq sjrmti,78ocbv6a 2veh: +*o e on a Force versus time (F vs. t) graph represents

  Which of the following is(74 9t x3prcdifhdhx8ev r0b- an accurate statement?

  A small car meshes with a large truck in a head-on collision. 7nlss+*hw tc) Which of the following statements concerning the magnitude of the average colli+*thl s)nswc7 sion force is correct?

  Two equal mass balls (one red and the other bl3s7dyae+-e a3f *+boa qdg.shue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the7bf d3adhasey- a+.go3e qs+ * greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary hrgykmb370t- jh :du,bowling ball. The Ping-Pong ball bounces back to the west, and the b rjdbhy ,kmg70t3-uh:owling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each g8b5lye00mb uother. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-om/p7kndjwj )/a6d8xq n with a 6.0-kg object moving to the left at 2.0 m/sm7k8xjw) da6pqj//nd . Which statement is correct?

  A 100-kg football linebacker moving at 2.0v:d7mc,o* ,srcdzmr . m/s tackles head-on an 80-kg halfback runcoc,d,7 v.r rd:mz *smning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum isk5 0ja*wtjyelgfs/25k6lg5q conserved, then which of the following statements is tr0q w2sl5 / etjk *jfy5kgl5g6aue about kinetic energy?

  When is kinetic energy con5p21p , unr5ayu2yindserved?

  In a game of pool, the white cue ball hits the :b+w/b hdsk 3rcekfc)d3a: 8 lzl g0,q#5 ball and stops, while the #5 ball moves away with the same velo 3k8dfb: r:lqec z ,w/s+ h)albgdk3c0city 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 wpva b./iz,,5loft sa2 ith a heavy exercise ball at rest, the beach ball's speed after the colliitaps5b/azo ,l,f. 2v sion will be, approximately,

  A golf ball traveling 3.0)yum wgfemw/.dx (ky2x(:1ve m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collisf:( ew e1vxd.ygykwm2/(mx u )ion is

  A rubber ball with a speed of 5.0 m/s40yqaznv0 ;t p;kjlm: collides head-on elastically with an identical ball at rest. What is the speed of the initml;4nv0ayq: zj k;0ptially stopped ball after the collision?

  A very heavy object moving with speed v collides0 vh zt86hm8ov head-on with a very light object at rest. The collision is elastic, and therez v8h8mh0tvo6 is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v coluzhac 9-y 5:brlides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the byc9za: rh5u- heavy object after the collision is

  A red ball with a velocity of n7r d ht1u dz9xgb+86b+3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/std1 b9x 7ug6bzdh+r8n. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light obr1i0o70d uwwz9+fzebject 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 o0 fr+zo0 ew79zidbuw1bject after the collision?

  In an inelastic collision, if the momentum is conserved, then whik9yz. 5jc omy.oavy,j6( bgq;ch of the followi.c y9 zbvajyym(q; g,ook j.56ng statements is true about kinetic energy?

  Two objects collide and stick to.p(vc he6,dk+3 g wxrggether. Kinetic energy

  A 3.0-kg object moves tom gsy8s*bfld(kk; 5 +o the right at 4.0 m/s. It collides in a perfectly inelastic collision+mksk f o5; *b(8yldgs 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 st5( oahe+4kve(dw/dy1 f 0 d7c0hygoszicks. Which object experiences the largerz0 h(/ecvod1fwyg(e oay hk4 d57 sd0+ magnitude of momentum change?

  In a game of pool, the white cxkn:i- uw(g d vvnx)9+ue ball hits the #9 ball and is deflected at 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. Which of)6j8mpi.k urs the following statements is falser.psmi86 uj k)?

  Which of the followig-x;xhg568 3 5kjn(vzbwar4j xh3s r jng is a false statement?

  Tightrope walkers walk with ym-y wr**;wlev8bf dm:8o 6gmqte. c8 a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting thecf 0i/h *qu8eug6n(od ground. Neglecting air resistance, the center of mass of the bomb fragmen diqou( *f06g8n c/euhts, just after the explosion

  Two cars collide head-on on a level friction-free road. Tv5nk59eja o( che collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of t o5v9ka(e n5cjhis system's center of mass?

State Newton's second law for a system of parti0; qc :m;wkbvfcles.

  What is the momentum of 7pm2-8k05oagmdet1l /3ok lr/li vz i a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s.6kaw mi-h4d2c :p *qfy What is the magnitude of its momw 4*ayd:iqc mp26-h kfentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mo) ruj(f0o beg4/ 0ruvfmentum when it strikes the grobuo f ) rjg0/fre4(u0vund is

  Two identical 1500-kg i5xb9id l .mk.jsxau76x9j:a cars are 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 momx 5xi m.bk:ij a6j.a99sxld7uentum of the system?

  A handball of mass 0.10 kg, a8mm 8 v+f gnin)s9j91/f;0wy ktkty btraveling horizontally at 30 m/s, strikes a wall andn/m ;0 nf9 +wtvsgtia y)ky1 98kjmf8b rebounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at-fi+br1ypz , h/u inp( a speed 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 the change in bi,phyf(/-inr 1+ puz momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pondvtmr7)5be h-d *k7d-hfhvtte .qpg1 b,b 66ad. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the rechfbbd*1 et tth)hd.7d6 6rp vq7g ,ae5--vmkboil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationa ;yaeq :h y4fm4o)o a5mz9cba5ry 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 cma;5hcoo)4 5e9z:aa yyqbf4m apsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s a d7n:q,3a fyd5 ivhc:rpproaches 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 l r :dyf:caqn5iv7 3d,harge object's momentum change?

  You (50-kg mass) skate on ice at 4.e qq5mvf-mgu-7kh5 u00 m/s to greet your friend (40-kg mass), who is standing still,u-5v0ke f5mqh m-qg u7 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 the right along a lc*2k gtkp30s gevel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum at2c0pg *gsk3 kfter the collision?

  A 1000-kg car traveling at 25 m/s runs into th 7wcmet .ziap m9xn6,6nc+1ls e rear of a stopped car that has a +9p wznmim. 6x st,el1c7an 6cmass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lep7 / var7khn9b vp/w2xvel 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 is the speed of the two cars afte /w9bv/x7h2anrpk 7 vpr coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictionu1u vw*ii g)c3j5r e1t on a horizontal track 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 cart *u3w1ijgru )5i1e cv. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.8,k60:x ic0 ph fwv;fa6asu8zn )rdd8z0 m/s (with respect to the log). With what speed does the log move, with respect to the shorw6xdfzp an0shv0 , u f)d8ar:z8k;i6ce?

  A 4.0-N force acts for 3.0 s on an object. The force suddenl998 8 vrwul+fh3oz xgjy increases to 15 N and acts for one more second. What imwh89xzlu+ vrj 38fo9 gpulse 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 object. What5xp-asx05 yut 61lovg6hd ed/us4ef* is the object's chantf soue6pl5*av6ysu ed- /hxg10 x4d5ge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bk-za.evni l ;m ,h(7*qe(ho mirick wall and comes, -h(nmihemzokva.qi*7; e( l to 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 a-/kh,8)hqr b; kr z86yuhublft 20 m/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.u6)lhr- b ,8z;u h8hkqr/ybk f10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speed o8ar9mpn-7 d,il)u 3g t:gvz/bc5mnhs of the ball right before and right after hitting:z539gutlh iv )n-o/ b8mgrm,ndc a7p 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 bul ifi46ko( plr/dva7 4nlets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exer6d4vio 4klf 7/arnp( ited on the machine gun mount?

  A fire hose is turned on the door of a burning building in ordergc6 vr7 g4,rdi to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the gr76v dicrg,4 stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minucv)r-ks r */qute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert oc u*)kr-/qrsvn the ground?

  A toy rocket, of mass 0.12 kg, acimt2 w7e+hxpriwclobx: l5 16.ze k .:hieves a velocity of 40 m/s after 3.0 s, when fired straight up. What averagie1l2::7hp56ilbx . wrxm kt co.z+ewe thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kgreo/;o5pxu djj6bey1mf/* d + and 80 kg, are initially at rest in outer space. ; /me f/peb1ox+juj5*yd6dro They push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to theaodusulm g,p p3,bqg9( 6 kg1/ right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to sb (lgq6a ,pg13g 9oduk/,mupthe left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of nn;erwg 4r(7v 8hgfv- 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?h4 g7rv fg(nrewn-;v8

  A 10.0-g bullet moving at 300 m/s isnw h o7u.n4jp2v7p i,b fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in.n vup,4o 7jpw2b7 nih 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 rest, is struck head-on by an alpha-p4c6pqku x6lp4 ajdk- *article (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 neutro6kd kq4p46a- cpluj*x n's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides ic -zgv2+ wgfcuglyv+/ro90rkk 7e44 head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immed glg/ r i0g7y2ufck v9k+ewc4vrzo-+4iately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides vgk;a 8s(6s ueidvttrpj33 20head-on with a 200 g ball sitting at rest. The collision is pee;pt( 33 k 8r2iss0g6ujatvvdrfectly 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 head +:x :m52(etcdd djcyr-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, m 2tcd :d+xde5: crjy(what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east uk94 d06fb,k,d dvmjh8s8pym at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost dukb,p d u,8k0 d6mvh8ym fd4j9sring this collision?

  A car of mass m, travelrsd(7u04wlc v;2v bt ving with 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 initia u2rwv4 ;vl tc(svb7d0l kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself e35ftsif ;i7 gin a 2.4-kg block of wood a rest directly above it. As ei3if7 s g;5fta result, the bullet/block 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 wif)m1*jef ,nrhf o ri5,th a 3000-kg car traveling at 60.0 k* hf 1,)efr ,iofmrn5jm/h south. 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 east collides with a 3000-kg car travedhictxjx n2*)kwd hy*a )8 x;a6fbo/2ling at 60.0 km/h south. The two cars stick together afx)b/ kahd ao*; hj 6ynd2fc2ixw t*8)xter the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level fr2d-fe tk 6hzi:ictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B mf-t:k zhde2 i6oves 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, is moving toward t6a v plrn 239t8jifn/khe 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 6r t i/n8j9kvfan23plof 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, and a 10.0-kg mae3rnn/;fmm k1 z (d+ed 1rgb)jss sits at x = + 21.0 m. Where is the center rmdr13b g1e nmf(+k e dn)j/z;of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is lrotlv1 q39+jpocated at (3.0 m, 0) and has a masj9t1rv 3 p+lqos of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positio9)n sbt8s7g*ss80bc)wdw g vlned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1bg8s*stdbg78sn) wlc)0vw s9.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.n )9w wa)dd tg ,d:wo( o+(bhn3hhnz0h0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location (wz dh) a:wnho(0b ,hw9)ho+tg nnd 3dof the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kbi4 e ob3z)l,p3d t-x+dx7 sqig mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass whicipbd q 3x e),37-4zdo+stxilbh will result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate t3, 1zxjex -0tad/rd pmhe position of the CM of a whole leg including the foot 03p,dxarztm e-xj1/ d when the leg is stretched straight out. Assume the person is 1.60 m tall.