What is the SI unit of momentudrgt6 z;ydf3l :(k96 mgpp p;sql7vv4 m?

  When a cannon fires a can8fxae p4 p/7b80kf e cnj935rx4upewd nonball, the cannon will recoil backward because the

  A freight car moves alongc 2l*u uoai2b4p0 wnd)ku9za9+(tx fr a frictionless level railroad track at constant speed. The car is open on top. u c zru*t4 a0 ol 9(iax+n2p2b)fdwuk9 A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways n q1bju0*-vr i h-m34cbab2iv off a sled while sledding on frictionless ice. What happens in* 2-0bic vubb3ah1-vjrq4 mto the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They argkwdjd4gqq ;zf.;o+ 4e 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 qdkz q;ggj .4o4+fw ;dgreater momentum change?

  A sailboat of mass m is moving wit, 0r3tm,pvi 8acn:,o eqrhj 4uh a momentum p. How would you represent its kineticet,rc0q4 ,:h8o3aijumvp,rn energy in terms of these two quantities?

  If you pitch a baseball withoz-/f lwg wg,9 twice the kinetic energy you gave it in the previous zg9,lo-fww /g pitch, the magnitude of its momentum is

State Newton's second law insc;)s a(jz x*u terms of momentum.

State the law of conservationr c( -emepqw/3 of momentum.

  The area under the curve on a Forq8 a/-gcah2cnce versus time (F vs. t) graph represents

  Which of the following is an accurate statemsvb-8 qx i+ ia 8;rxgm;3.whedent?

  A small car meshes with a large kcuxi :2 :h4gwtruck in a head-on collision. Which of the following statements concerning the magnitude of the average colliiw:ck2hu 4g:xsion force is correct?

  Two equal mass balls (oneuudv+mh lrdw*o;8a/. red 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 om*u.ra;lu8+dv/ oh dwf impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stat-tqoqkq 8 rq)+ionary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very sl )-qkotq rq+q8owly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce offwt8)cj)n,mdyx7 nef *agge81 each other. Linear momentum

  A 3.0-kg object movesz 7f5v q99/b--j,z:d 8mamo) jksqokuzetix) to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to oq/dx)zmqzv7fb:)t9k9,om8-u a ikjs j 5-ezthe left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfback9kw6vk vxq3*cn3 urvit6 ;xy ; *uk;ntwyr xq33v6c6ivv 9 kx;running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then wh/t,( cw.8ygugw/na g r.jr5wyich of the following statements is true about kinetic energy.g, w5jwyac/./nt wrygu 8g(r?

  When is kinetic energy r 3g*-fnb:mnoconserved?

  In a game of pool, tp5y* k yk7+psdhe white cue ball hits the #5 ball and stops, while the #5 ball msdk +p 75y*pykoves 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 collieq a)w wt,a83ddes with a heavy exercise ball w3)adwt,qa 8e at rest, the beach 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 collis ,umqi:xu84htza.v qs );dxq 8ion with a stationar )z ;:quia8s4.x8vhmx tuq,d qy bowling 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/sz 0gpnjm8q2 g;p8p2y e collides head-on elastically with an identical ball at rest. Wh z 8mp2ygqp0ep2j;8gn at is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on g/ m7eh1il)qv x)jr+ mwith a very light object at rest. The collision is elastic, and there is no friction. The heavy obje 1xl7/eg+hv qr)i j)mmct barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-ov ll.gzy:(y:mnv ;h( mn with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elast yhz:mv;l nglm((vy.:ic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a ye52*uo:cj wndu - suaj3llow ball of equal mass moving with a velocity of -2.0 m/s. What is the velcus3wa nd*u2:o-ju5 jocity of the yellow ball after the collision?

  A very heavy object moving wix*z g)ga5oylud dis -4 dap2 4s6)qa+wth velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no fricsa6-a wi x)4d2+pu ydqdls)zaogg4 *5tion. 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 conserve5, rza;.8ayw+ 8+l. ,ftmlvefqb vlrsd, then which of the following staf.bf l+ ;t,mv a,vw8raz e.+8s5lrlyq tements is true about kinetic energy?

  Two objects collide and stick together. Kinetic rh dz,1x:lee (energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collidesnb m28,9. 5x :4;smy9yhrzyqsu n ygnn in a perfectly inelastx nsqhm.y,u9y: gnm2y4y nnrz 9 5;8bsic collision 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 qdash.:)cyi7(zl cm2 with a large object and sticks. Which object experiences the larger magnil 27cdshm(.)q :zyacitude of momentum change?

  In a game of pool, the white cue3blh-cv9 ef0zn t+.vdejuo: 5o:v /ql*tlf2a 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. Whf)af ko:d5 6npt/ fcin6+sna bx5/i.nich of the following statements is falsaf np+nid)a n55/ ofitcf.n66s:b/xk e?

  Which of the following is a false st fy) l)2ia ozo3juu4q y0os08hatement?

  Tightrope walkers walk with a long flexible rod ydw.ui*8wufgq qmk 0: ;:0matx;ec r)in order to

  A plane, flying horizontally,9xc-i ytup f63 releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, jupyti x3u-9 6fcst after the explosion

  Two cars collide head-on on a level friction-free road. The colliswte/;vsy bm -hx4;kz7ion was completely inelastic and both cars quickly came to rest du;7zb te xms /yvk;wh-4ring the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of :lbo xnyn8/4.gxi kq :particles.

  What is the momentum of a 2000-kg truck traveling at zphquap8 u6.(2zl84jhl9 dvsh .cp t3 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its momyw fy.9m tnfeu6/o 2t3e6yfe/3ot2ftu 9w .ymnntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its 9kzfdepq5jiq z2*+ rn n)e q6:momentum when it strik )6pe*i eknqd:qz jfn+529 qrzes the ground is

  Two identical 1500-kg cars are moving pe,/-pbuyz zklz3x 8c+bo3o jc+rpendicular to each other. One moves with a speed zc3zuc/opokj3,8- lybz+xb+ of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at lo.kbyr: ;x/ c30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the mom./x; kob:yr lcentum of the ball?

  A 0.060-kg tennis ball, initially moving at a s5 vfzh+5opam5t:wz da*f eb;l . ek2:ipeed of 12 m/s, is struck by a racket causing it to rebound in the oppoaed:ie 5p2tlz;wfvfb.5ozm* kh :+5 asite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pz4 1:w*c itzlplaced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal*pz4iz1:cwlt direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walki.uei*vm 8fm4 mng outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he thvmm if 8*u4em.rows 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 approaches head-on a large obwy2l1nl- c fv5c0 *ms2x n/pc8los.hvject at rest. The small object bounces straight back with a momentum of sn8v .s/c02cp -wnhl*o12vllf 5 mcyxmagnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to pp6du 6z/1s: nzji8jrl* a+elgreet your friend (40-kg mass), who is standing still, with open arms. s/+jp ead un r*piz66j:1zl8l 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 rt7zl /t5jf4imbsfd6 xcu /d 78ight 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 m 4 j 5m8z cffi6x/lsbtt7dud7/omentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that h- ytl)o1t 1w0n 9yx p:fvtuic-as a mass of 1500 kg and they stick together. What is the speed of the cars a v1p:wx t9) ttcon0l- f1yyu-ifter the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alo7 *l:ta 1 )pt:g gqo.caquyab;ng a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initiag)ca: * at ua:1q yg;b7ql.otplly 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 a7 bhmzji+brtavx e2sv5tg 5:7bumj./ 6- sr2w horizontal track wit 5 b :m72 surj.6rhsa+t7m t2jwz/bixgevv-5bh 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 happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respectzr 0lhk7(4nv8xqb +qeaf3* axc:qc9b to the log). With what speed does theqcv3kz4ahnr(qq :xb*708+ 9xa c lfe b log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 1fctld n:-z)i+5 N and acts for one more second. What impul) l-c: diznft+se 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 the oa:d0cg-n , ;vtch4 dwmbject's cg;-av dt4c 0dc,w: nhmhange of velocity?

  A 2000-kg car, traveling to the r/ uq wyaxy 066pj5f66zm g:l3h5pnxhmight at 30 m/s, collides with a brick wall and comes to rest iz x:/p6mjh6 6h5m0w5xqyayp f3ug 6lnn 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. You huhzeh8sp.*kom o0)) r it the ball back along the same path, and at the same speed. If the bat was in contact with0)pes.r zk8ho m huo*) the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropq 5.r5zxec5yj hxu(c:zfw ve/+g h,d7ped onto a table top. The speeds of the ball right before and right after hitting the table top aef j5x/ +c7zc(:uh .qre x5,v5 gzdhywre 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 bulle)d/ g1j pitpw;x56nm jts, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exertxnt)dgpp5/ 16; jiwjm ed on the machine gun mount?

  A fire hose is turned on the door of a burning buildin,2 2zthzm ++r4kc;tk*fdxb(nt;ymwz h yir;4g in order to knock the door down. This rtxy;dzrwk;(4hy,k4*c z2; h tzm tfi b +2+rnmequires 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 drainpipe at the ra1e(aseql1p49 0q krcqte of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't sp4 ce pqe1sr0kqlq9a (1lash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fbzkqbox)c .otp45, w4ired straight up. What average thrust force does ,4t z k.oc5qwbbxo)4p the rocket engine exert?

  Two astronauts, of masses f; sb d j:(n0l7qtio/m/s(jzp60 kg and 80 kg, are initially at rest in outer space. 7n(tdp zsfls:jo(jbi/ 0 q;/m They push each 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 collidnh7g5y:.kcs62 bazvh*-c cah)g e/ yp es in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the to vs: -anha25/ekgpg c*7 yzb).c6yhchtal kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x dir d8hp7 6 mb-or/f+)xew)zz8(htunowr ection makes a head-on elastic collision with a 0.15 kg object initially at rest. x t(ef uwbdnr8h )o8r)zw7opmz+-h6/ What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fisk.:o( 63mck xmcg2 dnred into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of .2k c:n(csdm 3ox mkg6its 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 anf /1iiodu+w7,a v*;z uow-dn p alpha-particle (which consists of 2 protons and 2 neutrons) mov od-u p1;d+wui*z w7/ifna,oving 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 mass.)

  A 50-gram ball moving +10 m/s collides head-on with k sjdi *ya m/abo 5st;m6qgo.6) vuh3(tv86 tla stationary ball of mass 100 g. The ckmyt;6 du/o8aab 63mhtsigl)*5vq6t(sov. j ollision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speeobp:wov3vce c(p)7/4/ jkdy j8n h s4hd of 3.70 m/s collides head-owocsyhe djv/ /b7p k(pno ch3j84v4):n with a 200 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 j;hpn8c;a, fr 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly nfr;,h;acp j8inelastic, 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 head-on in adwh,u1v yy*32ldsdv u1f 9i j+ perfectly inelastic collision with a stationary 2.0-kg jvhui,vdl 1u y+2 3y1fw d*d9smass. How much kinetic energy is lost during this collision?

  A car of mass m, travelinnk57h hzqgp hxask;s6mpm 1p; 2e44m:g with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this h mhm;nsahsx6kzgm p2 k:;474pe 5qp1 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 ii anbf7mk0,e/+5bv sh56 3as9 rlphw vertical direction buries itself in a 2.4-kg block of wood a rest directly abb kbv/+7 aa6firsphles 5, 3h5m09in wove it. As a 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 kmyt/ g3i: )xrxco o :dtf.zp(rv(,cf/e/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togethcidp3.rx / :oo z)yt/:vrc(e(t,fgf xer after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.06z.w;uie j xo: 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. 7-1.) What is the direction of motion oe;xz w: .6uijof the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east8t5ci(dr-qzmfau*f - with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. a q i*z5u-rfc -mf(dt8What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is mp. n2okr8ga :x. yyyn.oving 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 sp p.g nyny.xo2a8k:.ry eed 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, and a 10.0-kg mass sitsk1iyu/s5 wsf +;i ef:oym2z0 v at x = + 21.0 m. Where is the center of mass+;szs uowvfkf1 my e i5i:y0/2 on the x-axis?

  The center of mass of a two-particle slq0,pl-h2n4, vqjs p,gl h:un ystem is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass ofpqj0gnl,hn2:lv u4h s ,q,-pl 3.0 kg?

  Three masses are posi010psxh+v1bqcxx5el tioned as 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 coorx5qx00c ep1lb h+x 1vsdinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kx 2 k:4j;xnmr8(kalsd(wg,si g, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the centeg84, ns(lx:sjx kiadwm2r k (;r of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positip ,,rdm*r3.gn,toj 3w6mi3oq b;ramh oned 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 at the origin, (0, 0)?im m .p *qg6od,o, w,a;3j brh3m3rrtn

  Use Table 7-1 to calculate the position of the CM of (d4 ajfrkoi/:a whole leg including the foot when the leg is stretched straigh(fkarj / i4od:t out. Assume the person is 1.60 m tall.