What is the SI unit of momentumky -h;;/53 qdscpsrwr?

  When a cannon fires a cannonball, the cannon will recoil bauc xoad-(e(;1r bht:ackward because the

  A freight car moves along a frictionless level rail v:wt:)6hbpczr6q7vjjo , pof9 +3m ywroad track at constant speed. The car is open on top. A largewbc9w6v hvo p+ty: r3pz:,o76)jqj mf load 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 owl3s,ua79a b c9sxx -on frictionless ice. What happens to the velocity of the sl9,o-9waalxb u x3c 7ssed?

  A rubber ball and a lump1z0 gf.gtb4kgd exlq+ c )j(,x of putty have equal mass. They are thrown with equal speed against a wall. The ball bounef,d.c0x 1gkxg+)(lz bj4tg q ces back 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 p. How would you represent it2t*j rczh34l2 5e0bddqo- ov ns kinetic energy in terms of these two qutqh-24n2 ojd *3dozelbv50rc antities?

  If you pitch a baseball with twice the kinetic8 at+yr-)g vyz energy you gave it in the previous y z8v)+arg-ty pitch, the magnitude of its momentum is

State Newton's second law in terms of kyfl ex-)9b,gae e v1-momentum.

State the law of conservation qh ye-u07y:qm of momentum.

  The area under the curve on a Force versus time vqjt+ljk3 +5lah+98gp u0zch/ xnh 8d(F vs. t) graph represents

  Which of the following is an accuratw db g)w vntv/tz76d6;e statement?

  A small car meshes with a large truck in a head-on collision. Which of f2wm+7ntb+ ktthe following statements concerning the f2+m bk7t tnw+magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other bluevca ey3fpkj q )nb(1;0s v(3fl) are dropped from the same height, and reboundnbaf0cq3e )jp (l3f(v k;y 1vs off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides qd rf,qf/,d /mz85d5 ah bi+ziwith a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the gqmbha/ /5d,,zr5 ziif8fd +q dreater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear momentuh p1(7q(amydum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-onu0eki9tk 4p3lj fs6 k9hsz2s- with a 6.0-kg object moving to the 2f tzse 69u9j3h4ki0 slk -pskleft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-30r3x ohrjjgzg6-/7 lz+wu d (i nw0haon an 80-kg halfback ruhl6w 3n37o(j rzaughzi0r0xg+dj /-w nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, t pu7-xbr/t+z yhen which of the following statements is true about kinetic energ7pxy+bt-z / ruy?

  When is kinetic energy conservedruhu 4s xwfwzf0+z7s :98q+eh?

  In a game of pool, the white cue biqf v 9g*yo44fso u6g/all hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cf*9 us 46vf/yq oi4gogue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a he 6qqyi)ptby*o 6(nk8a avy exercise ball at rest, the beak )yyo*n86ba 6it(qpqch ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collijhcgm18z4) / aud8mhw cu50c hnpz*s4sion with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic,huas08h um z1gmdw* 4) cc5chznj/p84 the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastix cro2m+ 6b.eeovh 3cc 1ax2(tcally with an identical ball at rest. What is the speed of the initially stopped ball xx caee3o+6b tv21mr.o c(2ch after the collision?

  A very heavy object moving with spee8gov9z6 *1 pm)kok.fgt+i -lob9mn gtd v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slow9mg8zl otg+. 6k vo*p -1i)ombn9ftg ks down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very hrz5gjc2-qmx;lwp 0 k;eavy object at rest, in a frictijmk-z qc0x 2rl; w;p5gonless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocic 57r 3i3g: yd;vpx:5eogtfkxty of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the vex3e;kg5:vfd xi 3ory 5t7gp:clocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides huhxmz a 1c01 rz i59hkfo-+uu(ead-on with a very light object 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 collisionmiz(huu-5ou1 h zka+9 r 0xc1f?

  In an inelastic collision, if the momentum is conserved, then whic2t 5dnw,ik y3x v;;):ot;zv8 zwswowyh of the following statements is true about kinetic ekzw;sdtwo w 8; ;:z wo5 )nvtyv2xi3,ynergy?

  Two objects collide and stick together. et11fobdj r, a-s;vjki, t8sg 5(b z(kKinetic energy

  A 3.0-kg object moves tus :pd 4jf4b/ 8cum.oro the right at 4.0 m/s. It collides in a perfectly inelastic collision so8pcjf/4dm.uu4 : rb 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.ez/ e-:v rq+uo Which object experienceu zvoe+r /-eq:s the larger magnitude of momentum change?

  In a game of pool, the white cue byno .zjw3ll +w+m/xgj+ e21pp q8kgtgv y4:+call 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 the following statemen6e j4vbghzu u(-l pm(85 mos6its is false?o(6h8usg 64ulm5pj z i (mbv-e

  Which of the following is a fal6 cyp)kbiznrl*aa2la jk54 b36 h;3ubse statement?

  Tightrope walkers walk with a longy*.i6e.w k igr flexible rod in order to

  A plane, flying horia: x yi*ab ,wn2u,flh)zontally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explali wxh: aun,y2*f,b )osion

  Two cars collide head-on on a level friction-free road. The collismc+,rgom m ,y*ion was completely inelastic and bot,rmmco m+gy ,*h 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 fo.gs9vq 5fov (. n5yd b )(dxnj,enjma-r a system of particles.

  What is the momentum j 34t,o4qzypyi5l;6iaqwqo,uw*e 2d of a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Wh9 tr 2fl 5tsas hyjfccl5..z25at is the magnitude of its momentum?ta2 flc25s z.fh t.yrl9cs55j

  A ball of mass 0.10 kg is /hzvb83 7f:th btksx2 dropped from a height of 12 m. Its momentum when it strikes the grthx8vkh37fb:2t b/ szound is

  Two identical 1500-kg cars are moving perpendicular to each other. Oqo9svxn+f0k lq85g - gne moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the to9k o5f-v0+8 l xqsqggntal momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall ab-8b8i75 aqpq,i.mlx),caihr hk qk 8nd rebounds at 24 m/s. What is the change in the momentum of the bal- hai). axl ,,88bcik p8 qbhirq75qmkl?

  A 0.060-kg tennis ball, initially moving at a speed em(njz1 z-9wlof 12 m/s, is struck by a racket causing j1(9e-mnw zz lit to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basebakm,p6c+vq,p9 pn(cbp ll) is placed on a frozen pond. The machine fires a 0.4mpcpp(q6cbn+ 9p, kv,0-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the n3v8uc( c z8adyih;:mu vqu5/ 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 sph8/ ivuq8ym:a v zduucnc3 ;(5eed of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at ry7 x qbj*9uu7,eid hc4est. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large obje*, u uc79j7x dbq4hiyect's momentum change?

  You (50-kg mass) skate on ice at 4.0 pra28b 3irn)q) a sdh0m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, whila8hasrdn3r )ip) 0qb2e holding each other, with what speed do you both move off together?

  A car of mass 1000 kg s2ru(s at)to,moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directl2)rs atstu o(,y 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 zx.u g /d4:za.gr.od qinto the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the collisiuro. :zqg .agd4z./dx on?

  A railroad freight car, mass 15,000 kg3hbghyf-bd,ee jpj +yfcz8 6- wte4op(u, 15u, is allowed to coast along a level 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 after couplinge4zgwhe8 je hy3t +-, 1by,5ufjfcu6bod (p-p?

  A railroad car, of mass 200 kg, rolls with negligible no,;k: vlk;x7w (t myyxg *+xifriction on a horizontal track with a speed of x*o( mx g kv;;7 nt:ixy,lk+wy10 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 this happens?

  A 60-kg person walks on a 1 y ge c8t4yejz1m2,gd100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log mo c1,mty yze4ge218 djgve, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force h/rx;aj4i ) ldh /*yfrsuddenly increases to 15 N and acts for one mr 4al/i;/y *drfh hxj)ore second. What impulse 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. What is og uz 3xpt c:*2boqo.8the object's changez3 qpxo cobt:.ugo2*8 of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick w v2 u2h0(7sw9raht*vf- dkmlwb5u2fvall and comes to rest in 0.(t07w2l -fuv5ksf bma9rh v2u w *hvd220 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. Yo/i30 ytd kzq(x7xgrv +u hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magnitude 0zxxk3riygd/ v7tq( +of the average force the bat exerted?

  A 0.10-kg ball is dropped ont s3-uyuh7f /g-cwb k)wo a table top. The speeds of the ball right before and right 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 g7bfh-s3k)w/u- uy cwtop?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with hj56 :,gcbqz1ymbj,ta muzzle velocity of 750 m/s, at the rate of 301bycg6h:j,q jm b5tz, 0 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on thdp89mf7s tt usmhh x,4/f74exe door 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 minimum velocity of the stream needed, assuming the water doesn't bouns7d,ph4 8/x94xmhtu7 ft mesf ce back?

  Water runs out of a hor /mr75h qzg,sgizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average forcg5mh7,rqg s/ze does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity zf d :8 zornx)qevfr8r;48yi3of 40 m/s after 3.0 s, when fired straight up. What average thr v3;z ir 84xozdrr)n8fq8 y:efust force does the rocket engine exert?

  Two astronauts, of masses 605x+awy4puk: w kg and 80 kg, are initially at rest in outer space. They push eacy5up+wwx k:4a h other 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 coll0 f9z;v (+ya4 -vr e+i /9uknz7h6e dvghxtrcmides in a perfectly elastic collision with a 6.0-kg object movievk +90(x ;4hz9ae7 -d nvhvtmgz iry6/+cf urng 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 in the +x i-cad/u(sw+k hj;)e zuxm-a- direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the jh;edzuu /( )xa mi k-+-a-swcfinal velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired intokdpnh:co2 jy*h qm89.u o+ 7zz a 1.00-kg block at rest. The bullet emerges (the bun : 2y zmd8ouj9hpc k.zhq+7*ollet does not get embedded 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 rest, is st*k +isp;v-07 lizayebruck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elast ;v i a07klbz-y*e+sipic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s colli jva; 3ed-7.ep lpbo7edes head-on with a stationary ball of mass 100 g. The collision is elastic. What -3 dov7.eebe 7pl;pa jis the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed o*off qpjea5 904b/vkmb b-v8jf 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasticbbq o b- 9mka/jfjfev84*0p5v .
(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)wfg4- uoemkd r8. nz: of 5.0 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 wu)d8o rz.ken:g4- fmmasses after the collision?

  A 2.0-kg mass moving to the east at0 bhb61/bzn5myc sg0kga +8xs a speed of 4.0 m/s collides head-on in a perf bz+ xgsm05ykacbbn8/6gh s10 ectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling withmw -. emz.fs eni;)eo8z+j4fz a velocity v, strikes a parked station wagon, who's mass is 2m. The buzf+ );mne.swm o z zj.f8e4-iempers lock 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 vertical direction buries itself in xrl7r5 f dveyz+ 3sjt37e1bv8c:kw+c a 2.4-kg block of wood a rest directly above it. As a result, the bulletkfecwjyx 3 de:s7b+3rlr+c8t v571 vz/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 e7lqk k (tzg5zz;e: a1with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed o;k( z ae 1eqzl5z:tkg7f the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collidf xut;pwebsnylq3-+b d :;2 .ies 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 is the directio 2pxy;+ ;dulqnew.f :t-s3 ibbn of motion of the cars after collision?

  Two objects move on a level frictionless surface. pe;)2qkfexmk s*l p- t7 ,umy3 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 ks*pe);epm-3m,2xq ku l7yft combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the Norp ,5w ppw)mjrx8*grx8ml6 rbpri 3/. rth 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; pl.8gbmji*p6m)w rxr8 rr 3xp5w ,rp/ 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 av;-yt9i(p*: hli6k q2gj jmpr t the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on thiv9 *g;h pypikl-qj t(m6:rj2e x-axis?

  The center of mass of a two-particle se(1nyw/aipa;- y. cqrystem is at the origin. One particle is located at (3.0 m, 0) and i n;(e.w/-1aqcpyray has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg ap0m2b96ga lzg t (2.0, 0), anl 2abgpg6z9 m0d 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and679 (ndx uae7l )x-cbh ndst3e 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, a9xx s ( t- due7ne)clh7b63nd-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 positb r+y6g exox94ioned 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 being located ategxxr9b6+ yo 4 the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whow dy4f dje o8iqn2*7x7le leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m idq4 y xew*j8 o7f7nd2tall.