What is the SI unit of momeqh3(es1 z s0q v-db1hfntum?

  When a cannon fires a cannonball, the cannqjx; v ,fxre20on will recoil backward because the

  A freight car moves along a frictionless level railroad f qn) ,(.pndpdtrack at constant speed. The car is open on topp,n.) p(fddq n. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled whba*z12bkp 2 sczt ddehk8t;8 ;9l(usuile sledding on frictionless ice. What happens to the velocityth;eu19al 2t8* kd( pc b8dkbzzs;u2s of the sled?

  A rubber ball and a lump of putty have equal mass.o2nf j(n5i *bd 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 gre(d5n2b fio*jnater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you representyvgd *cez05aa c6nmc-l::.z xjbsf2, 8 bh;bk its kine- akeb z ;y:blj*,2. g:m8 5xnc0acsvfz6bdch tic energy in terms of these two quantities?

  If you pitch a baseball with1+xq:naask+ vz 2h9h r twice the kinetic energy you gave it in the previous pitch, the magnitude of its momentum r1 hza+ qk+ sx2:9avhnis

State Newton's second law(* 1n to;0seezwad1cw in terms of momentum.

State the law of conservation of momentum.c-p+qe*bfnw* 5pgiyi ilx75td p -8r:

  The area under the curve on a Force versus time (F vs. t) graph r1s8lckaz2z4xdd 1 f1 1ti ,+8et rswkuepresents

  Which of the following is an accuraf 33qdu: f5*viw( 4otuq s 1bnkwf4i)ate statement?

  A small car meshes with h cha e7n*4dtm x.l56qa large truck in a head-on collision. Which of the following statements concerning the magnitude of4qedlmn t5xh.6*h c7 a the average collision force is correct?

  Two equal mass balls (one redu6 bjhy/w5)b5qvru4y and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Whicy)bvrubu4y 56 /qj5hw h 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 with a stationary bo 50 srbqp0b4 sdu+x:laeaky2)wling ball. The Ping-Pong ball bounces back to the west, and the bowu e5ps a)r+0xka q20d:sl4bb yling 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. Lineg8 vu9mr,1. cxfcnr 7qar momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0,(, bb nqcd(dax1-k ei-kg object moving to the left at 2.0 m/s. Which statement a1bkq,d,b((cinx- de is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head4k-ispb aiq,uqtu --;-on an 80-kg halfback -q i;qbk-su4tiu,p-a running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is ct 1t8t)k tfqdij )l41yonserved, then which of the following statements is true about kinetic energytdj 1fti4kl tyt)1 )q8?

  When is kinetic energy conserveaaeq )t4ej+y*t 8z a/xd?

  In a game of pool, the white cue ball hits the #5 ball and stops, wh b5.aa *dts1a0ry+ ohuile the #5 ball mot*bs a dh+.r1y 0uaa5oves away with the same velocity 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 w*qc 5x8yjgft 0ith a heavy exercise ball at rest, the beach ball's speed after the collisio5gq 0cyt8 fjx*n will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collisay-i53 jsvrb1 ion with a stationary bi 153yrvb-j asowling ball in a friction-free environment. 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/sd zhb4t7hl6/ o collides head-on elastically with an identic 4lhhdbzt/6o7 al ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides headuj-bv/3qdaa 3 l /aox 5p2qpr+-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy objectqp-qud/bvr ao3 +x5apl/3 2ja barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v cq m/rk8 f*mg(collides head-on with a very heavy object at rest, in a frictionless environment. Th 8mrgq/fm( c*ke collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velox:wh hq )v(iha *:-gfpcity 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 velocity of the yellow ballhaiwv(:xg:h*q-p h) f after the collision?

  A very heavy object moving with velocity v collides head-on with a vez v1t+c0/fsk 2lps zy;ry 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 collis21 spz+cvf k;zlys/0tion?

  In an inelastic collision, if the momentum is conserh anyb* gt, 6o)03kj2v1iadqe ved, then which of the following state03a kih62d)nb1otv*,eq gyaj ments is true about kinetic energy?

  Two objects collide and stick together.jvro5qc ,z 6b10e(.qwuq o(jf Kinetic energy

  A 3.0-kg object moves to the right*ikw 6,t3-osfgkx 9fit0diw3 at 4.0 m/s. It collides in a perfectly inelastic collision wif -i f*t, 3ks6k3w wti9goxd0ith 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 alm 3yk8i+9q)m*n eaid nd sticks. Which object experiences the larger3e 8aml)q+m *i9y dikn magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is def6h*r2 h)kez atosm )l,;( qzwqlected 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. Whi(movdsnfzp k5ov a22+2,mj4r ch of the following statements is falsemon24a s2+v, kp jfrm5vd2(oz?

  Which of the following is a false sta/uleh3 . vb/gctement?

  Tightrope walkers walk with a long hbj 7j tvrp*:(flexible rod in order to

  A plane, flying horizontally, releaswsn,btz; 9 hejek9y1 72xsgahp d(0q 7es a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosi1b pq9sx;z g0d7(9a,eetyj n27 whshkon

  Two cars collide head-on on a leve2lp 2cwful9 gh0xl-w+l friction-free road. The collision was completely inelastic and both cars quickly came to rest d-p 2g fww9ucll20+ lhxuring the collision. What is true about the velocity of this system's center of mass?

State Newton's secon(a5p.rnirrw83 tpg +w d law for a system of particles.

  What is the momentum of a 2000-kg7cvxt//5fqybosggni/ m/0 7 c truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What istrms(g*f whx-wtd.41v) cmcu3 juq.a4m 5h7 t the magnitude of its momentum4fxv5twj7*g3 msu(m..chwtq4 h-1)cda u tr m?

  A ball of mass 0.10 kg is (ls ,*vknz9ec1k; yf;hmj2oe dropped from a height of 12 m. Its momentum when it strikes the gro n; js*1kehz;yfe2k(,c9 mov lund is

  Two identical 1500-kg cars are moving pevxtep4(6 *ki /lh)dwvrpendicular to each other. One moves with a speed of 25 m/s due north and the other me6pw(d t*/kxvi) h vl4oves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, trav9nj2iqumw1y7 uy t3qazz.8 + seling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ball3 a.8mnuz s+7q9y qutyjiw12z ?

  A 0.060-kg tennis ball, initially moving +nqy i) .q 71vtuxtr8eat a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18qqt.xv)eu 7n+ryt 8i 1 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pon-m k/ vipe,ngksl7d+1 d. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume, n givl/+-7m pd1kske negligible friction.)

  A 70-kg astronaut is sp+g my 8y3kj2rhace-walking outside the space capsule and is stationary when the tetr3+yyj2g8 khm her 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 astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approachese-8a ta 1mpk1z .v0xjf head-on a large object at rest. The small object bounces straight back with a momentum of magnitude jzfak- p. 1xe vma8t104.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice ,; m poorkp*pxie/51vat 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you botvro 5p*p oi xep;k,m/1h move off together?

  A car of mass 1000 kg moves to the rightvw8xh+l.qwu.1*osm i /; t swl along a level, 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 after tt1v*+wml.wi;ou h/q. lw ssx8he collision?

  A 1000-kg car traveling at 2 ; rz 4pgkt,xxu/9br esta m,9g9.g7mm5 m/s runs into the rear of a stopped car that has a mass of 15xx, agm t7 gmrpgm;r4 keszu./b9t ,9900 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed3gi.dnl /-epahttug: :)hho( 44j botnd(lh 4 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 tl-)443naol 4e dt:ghh/(jh gp:ntuo i(t hb.dwo cars after coupling?

  A railroad car, of mass 200 kg, rolls witix5pbuqo+/gvw) va;z/ypm0 -h negligible friction 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 car. How fast will the car be moving after this ha+/i;w)ab /qv 5guypm-oz0 xvp ppens?

  A 60-kg person walks on a 100-kg log at the rate o/pil in b :n 3o2:w4yb9tqp(pfeh+wf,f 0.80 m/s (with respect to the log). With what speed does the log move, with res po2w /i(tpnby:,f3 h+ql4nbwfi:p9 epect to the shore?

  A 4.0-N force acts for 3.0 s onmcp- qbaen++ x12a t5: 0rz9mz ve.yj+uvl1 da an object. The force suddenly increases to 15 N and acts for one morvz9l+ p1aa2b5z0eam+1vn u. rjmyxec:+qd t- e second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force k(d9 *u)+jxrptndg8 racts for 2.0 s on a 6.0-kg object. What is the object's change of velocitrr k( pdguxdt*+9j8)n y?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a z6/:ip8z oauow,z: bm brick wall and comes to rest in 0.20 s. What is the average force the o /:az 8mz,ub6io:pw zcar exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit x(ze9 n.m txjj( r l *nszt3uq6t9qcf0+2.twqthe ball back along the same path, and at the same speed. If. t rt9q2zj9twq.ucexf 03ml*nn qxj(t sz+ 6( 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 ofta9l8 ji;0f8k 6z iynm 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 thyfkt08z mj6;ii l8 an9e 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 mao4,p t3cz iv4sss 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounp s3c o44zi,vtds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of as-qxdtit1;3z7j dj,f burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per secod j 1fxtt,qji-73 ;szdnd, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe w b6woo-u)jx:vys ..9k/k rpoat the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the g-/o.9ur )wskoxv. j6 kow:pbyround?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s afteock2w1do(l0tlit1. *,z t lt l(/ oouir 3.0 s, when fired lw ti2/* 1o(touc(lo0,dltkzl.i ot1straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kxlu yso.-q3c,52 kp yug, are initially at rest in outer space. They push each other apart. What is their separation after the lighk53 uoc.q-su pl y,2yxter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It colw5.jtfoxk(7 c lides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the toct.k7xf (j ow5tal kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x dire /djj:vy3:zf qction makes a head-on elastic collision with a 0.15 kg object in vj/jdy::3qfzitially 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 fi3rew5y my eg+yi3fj: y-)/ ogbpccm; p:3(ljared into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What mmccg33pebr yiyal; g)y/ 3:e o:pw y5jj+(- fis the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alp ;opbot ij1li x;*n7z;ha-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 the proton's massx1 jbzo* ;itl;np;o 7i.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of maal)3-oound a ril)0+pss 100 g. The collision is elastic. What ldu3 aa i 0no-lorp))+is the speed of each ball immediately after the collision?

A ball of mass 400 g moving towar6h,ifyk3p8 cp sef5kt lj.y24d the east with a speed of 3.70 m/s collides head-on with a 200 g ball sply4ik8 kyj tsf3 .h 5e2pf6,citting 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 head:du jra4z 22zv-on with a 3.0 kg mass at rest. If the collision is perfectly inel:4du2zrzv j2aastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides zycs 80ih 7/qihead-on in a perfectly inelastic collision with a stationary 2.0-kg mass7ic08 sh/iqyz . How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a para v ;fn4xdhb 251xfu +,*dhadbked station wagon, who's mass is 2m. Th1 fxf 5anha2vb u dd*+;,bd4hxe bumpers 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 ver*p-q,w2pshjls+ h6n tlji-8 f tical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block c- sqwi l t+, snlf-68*pj2hjhpombination 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 d9q.t w,+tsv w90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. t9,v d+w .sqwt7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 9,6jti0 d sqfa3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the directionf0ad,6s 9iq tj of motion of the cars after collision?

  Two objects move on a level frictionless surface. Obe/7, tp(vrm gzject A moves east with a momentum of 24 kgm/s. Object B moves npvzme(/ tg r,7orth 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 the North with a.cnu i2,eh:wy 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. W: . uy,hnic2wehat is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.wlovfq13 *n0fwxep) )0 m. Where is the cen fwew l)q)0o3pfvn*x1ter of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One partb4m+:kbc.o do icle is located at (3.0 m, 0) andckmb+oo 4:b.d has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follyqw twdh0sijg 1v*4 /9ows: 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 ofs9gw /jdh4wty1i0 v*q mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are law5 q x9f3a dlxyo 0hy5bt5k8m6kl1 7 gpm83uwocated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), rpm3lt wx8 lkg7uq x8 65ydm5y 5wok39a0a fhb1espectively. 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 positioned at (12,kh338jkpjc 8g)1 a igulqb39j 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the sysj jhq3ag83k9) i8bgluc kpj 13tem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whol4tgnfeumui w8-f/ cj j:cz1uj 5-e x9(e leg including the foot when the leg isu1e(-gxe8mj 9ic fcz n5jjwf /4: ut-u stretched straight out. Assume the person is 1.60 m tall.