What is the SI unit of momentum?b9dsild/*wvr4 2r h .h

  When a cannon fires a cannonball, the cannon will recu7r p96s /w,i(9s jbsgp9gcns oil backward because the

  A freight car moves albto2(pkod(. n el0b 7kong a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the2 7d ntekbokp.l(0b o( car?

  A child falls sideways+x*b1hf07 zxjous 8mogi 8oq+ off a sled while sledding on frictionless ice. What happens to x8ji7fzm8*q0 sogxubo ho+1+the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are th6v:soc3lgu p)y k:9 op3 zcqp3 s3* vqdzc;wf+rown with equal speed against a wall. The ball bounces back with nearly the same sp9p s v6)+oc cd:fpzusp3;vk3ogqlyw3c* :3 qzeed 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 itj glbc)(;z6kh s kinetic e;c(gj6) kz lhbnergy in terms of these two quantities?

  If you pitch a baseball with twice the kineia85en s x,tck-o.c b+tic energy you gave it in the previous pitch, the magnitca+est8k-5 nc,o b i.xude of its momentum is

State Newton's seconq 4yw+kypl4vn0,/ psz6 xf6q/ q+greqd law in terms of momentum.

State the law of conservajj(0q)::g cpidi xtkxi17 6petion of momentum.

  The area under the curve on a Force versus time (F vs. t) vydh jn8dm .b/30l-apov /syuy334 iggraph represents

  Which of the following is an accurate sta v(+et9r2gozatement?

  A small car meshes with a large truck in a head-on collisdlc)y oms*3 yt9o5l+ -fqawh,ion. Which of the following statements concerning the magnitude of the average collision force 93 lym5o )-chd+* stfaqy low,is correct?

  Two equal mass balls (one red and the n xff 262 (ukp *hznd91;lhlkqother 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 with the floor ;hkuqp(ldnz2 6hx f9nl2fk1*?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a statz 0hrqsd80 mz;ionary 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 greater magnitude impulse durim0h80r q; zszdng the collision?

  Two objects collide and bounce off each other. Linear mqobn *ovp4x74omentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on witzk1f2rf rf1 hdk mu4:6h a 6.0-kg object moving to the left at 2.0 m/s. Which statement is corre1hukr1frfm:2 6z k4d fct?

  A 100-kg football linebacker moving at mi 8 .3aumxh9v+b tv+z2.0 m/s tackles head-on an 80-kg halfback runningv.mx8uviba+t9z3h +m
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, tljyt7 bi it,+iwz )zjnz(g7x38 u9y5chen which of the following statements is true )7zt8(ixn+5,3il ywci 7y tzz jbu9gj about kinetic energy?

  When is kinetic energy conshvla21jvp3x e( v w o(8pjz h:pz-9rs6erved?

  In a game of pool, the white cue ball hits the #5 ball and stops, wek*a)yy f/y2ws j;,m ahile the #5 ball moves away withkyy yf) e;as/mawj,* 2 the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed ob di00 yy-bbql fo9pj6feujh6)(p p*4f 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, ap0jujpo6 hbybp0*y)fld f6bp q(e-4i9 proximately,

  A golf ball traveling 3.0 m/s to the ri jdrl1r+cs/.z +wup3s ght 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 ofu1. s+rz +s3wdprlj/c the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastts6v m 8ewk mw8;6k.btically with an identical ball at rest. What is the speed of the initially stopped ball mk.k6;mswtvw8b6e8 t after the collision?

  A very heavy object moving with speed v collides head-on with a very light obje0 g g3ezq9.) k.pkwtvtct g pke.0qttgzw9)v.k3 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 collision?

  A very light object moving with speed v collides head-on with a veryu+ 7o;03gyba: ls1 i-sazfnhnma uk :+ heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after0zlkauya3 unnh:sbm1 g:a7+o-+;f is the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of y3hb0a(j8jrm wyvh240nce +qrjt;3 uequal mass moving with a velocity of -2.0 m/s. What is the velocity of the yhyj;80qucarh+twr4j 03y (mjnev b3 2ellow ball after the collision?

  A very heavy object moving with velocit7mzozs6 d-fk( y v collides head-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 th fs7zd6o(kzm -e speed of the light object after the collision?

  In an inelastic collision, if the momentum is conu2( ie +n egklds.y5a5c)1s /dkw hs)oserved, then which of the following statements is true ad sn) g .kdowusyle51 )/(skec 25aih+bout kinetic energy?

  Two objects collide and sticky5uj o**v8 a ;eu6apec x/zse- together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pe b-;buj8zsj; vrfectly inelastic col;s 8b-;jzbvju lision 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 object experiencea.:jpuz 4rl1 os the larger magnitud1: zuaj.l4r poe of momentum change?

  In a game of pool, the white cue ball hits the #9 ball an 7 d vwwn132:5:qti;ttdj xedpd 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 statements id3 lm6jidy -/fs fals6 3 yfd-jim/dle?

  Which of the following is a false statu9jh*n r es h)x-kpo97ement?

  Tightrope walkers walk with a long flexible rod i5x;y7 urt9g mv+ox- pjn order to

  A plane, flying horizontally, releases a bomb,o .k,fm nacsu185s*jxule1 1 y which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after txoe alk1c*.u51sn,f1 y8msjuhe explosion

  Two cars collide head-on on a level frictiqwkkpxe(a2 81on-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 system's center o( w1q8a pekx2kf mass?

State Newton's second law f89j;z6cm/xk s ehdbod e96hz) or a system of particles.

  What is the momentum of a 2000-kg tz9-0a*t+e2 uj flabz zruck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/ssdph(kyj )q8 -. What is the magnitude of its momentum?)q( hdkpys- j8

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it sgn l s-3gn1r+fa/k-g5pjepy j.5w zbol*.z; ztrikes thef *53 -z /zgwg;+lpe-l zsjynn5g 1.b.rokapj ground is

  Two identical 1500-kg cars are movia g08w (obx07 phk6dgwng perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due easw00g 6bxa8po7hdk w( gt. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wallg f 94ap o-s+/a b9axwks)b/le and rebounds at 24 m/s. What is the change in -b4aka9lp9o wbaxess /f)g/+the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a r)h/;iqa696:maih kv,jen rb)wyi jr,acket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of thhb)mkqi vn/)j 6 ,:e9yirr6wh,ia;j ae ball?

  A 50-kg pitching machine (ex*g n3gvb30j3g(i(. sm pxl vzbm 7o7kacluding 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 recoil speed of the pitching machine? (Assume negligible friamg7gm nvgj(z03osvbx p(*b3 7k3i.lction.)

  A 70-kg astronaut is sps;qj ; puvtu 1ja11,ugace-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throwpj1g uuq1 aj1s;vut,; s 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 apprau77rd pa. n +dkth20poaches 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 tua n7pa k d0r.d2+h7plarge object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to g(- 6glota4+ jj yij2pfr) cs;greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what 6 4fr2top sj il)yjggc;ja(+-speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road at a twe ) n5:txte5hkv+9io 7lf-dspeed of 6.0 m/s. It c+:5t)d h o9tk nf ex7ilv-5wteollides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at ytnu4z0n e v-nv))pf3;3q mbj25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. bm3;f jnv04)znqtn-)upe v3 yWhat is the speed of the cars after the collision?

  A railroad freight car, mass 1b( quv:bcl 25v5,000 kg, 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 qc (:ub lvv5b2coupling?

  A railroad car, of mass 200 kg, rolls with negliv+ k(-lh9rpvk.h/ w sdgible 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 afrwsh v+lh-/pkv .d(9kter this happens?

  A 60-kg person walks on a 100 d*c26bcfv7g c-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with ref27cgc dv b*6cspect to the shore?

  A 4.0-N force acts for 3.0 s on g2h.lt05zq au;o4d hhan object. The force suddenly increases to 15 N and acts for one more u0g4ot.; 2halhqz 5hdsecond. 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 the ;hksr :;8c bhbobject's change of velocihk :;rhbb;8s cty?

  A 2000-kg car, traveling todjqj7p:7of +bzdz+b 8 0jm5hz the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the :+ f0obzp+ 5hj7 ddmq z7jzb8jwall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back alon9m (t+ntqz x8pk wc/4 mf9qdn(i3kw t4g 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 of the averagt8pn4+wm xqmtk 9 (3cinkw(qdfzt /9 4e force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball .m lp*+mr.wczright before and right after hitting the table top are 5.0 m/s and 4.0 m/s, rmlzw+*r. cm.pespectively. 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 5gpe(oij( hmpb gq. 94-8 xdb1l0.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted onpjglbdm.gpiq 1h98(xbe4 o (- the machine gun mount?

  A fire hose is turned on the door of a burning buif i pts-5s d (c).-rldhpvj.o)lding in order to knock the door down. This requirrdv t p5)-hos.cj sflp)d.( -ies 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 rate of 120 t+ r lrl:70fnxzbj(9ckg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force dol 9 b:xtnl7(zfr+c0r jes it exert on the ground?

  A toy rocket, of mass 0.12 *ug1f*ggr+mt-hzg :n kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What g1gmfzgn*: *-rht+ guaverage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest iyap0mm.6kb+gytm6 8y zvo q(. n outer space. They push each other apart. What is their separation a.6+qm 8tym( kvybo.y p6 0mazgfter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to c o od*x 32ffb*wwg+,nthe right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1wnxwgo2 *fbd,*c3+f o.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 iwflro(2u)-dbs47 hlc n the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocitlsf)4wb l-hrdu (72ocy of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/bq(z9-xp2swt s is fired into a 1.00-kg block at rest. The bullet emerges (the (b9tw2pxq zs-bullet 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 str)cg1i3dvlm0v8 wvn j+uck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons)cn+01v8wvm ) 3v idglj 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 mass.)

  A 50-gram ball moving +10 m/s collides head-on + fa8nbxh rn04z0vby;with a stationary ball of mass 100 g. The collision is elastic.nb8ax0z0 fn;h y4bv +r What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east wikzndke)d+r5n5 p0 uv v z31s/i52nsjmth a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. T)m0k 5n3d ez1zdr5vspvi5+nknj2u / she 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. 1hoa gw (ze.*wdw v/6zIt collides head-on with a 3.0 kg mass at rest. If the cowvwadw .*/6gzheo z1( llision is perfectly inelastic, 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 collide8dpruz4qle4zn f:x 35 s head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. Howz:4nzrd5 p3uqe fl84x much kinetic energy is lost during this collision?

  A car of mass m, traveling witrplgo05hkh 7 r q97.mih 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 initial kinetic energy is lost in this collisionmg 7 5oq.hlr9pk7ir h0?

A 15-g bullet traveling 213 m/s in a vertical db9x .4ei06pgoz2 tnxwirection buries itself in a 2.4-kg0ib x. xwe49ztnop26g block of wood a rest directly above 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 236s1 ctx (v eoyp+talkm/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. y 162a potltc3x+s(v e7-1.) 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 traveaj(p ha.e zlr0b3 x81: lg(yezling at 60.0 km/h south. The two carpzea( b8 0 jl.1hyrz gaxle(:3s stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object dv6hjo2+cw1p -67kc7 j:33rigndw.zd zx cqt A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. gikon37c2xd dhw61- jvqdp6cj+.z:c7t 3rwzThey make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of masghd8p ;i-j)dh 2hz kb9s 10 kg, is moving 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 speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and h)i9 h2kbd- h;dg8jpz 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 ttvys 57k)/( jpuf,tw)tpons 9he origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center5)w ssuf7v/j(py nto9 ,p t)kt of mass on the x-axis?

  The center of mass of a two-particle system is at thekqv.,) t1 bp twkvr/c) origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the w) t1qpv bkktvc),r/. location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg d: qg4sp (xy/ )1asekhat (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the dx4qh/s(1s)g: kpyae center of mass.

  Three masses, 1.0 kg, 2b.4smja;)aroat 6g(gocd 1:g.0 kg, 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 locatitr 4aogam)ac;gb :1sg (o6jd. on 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 positionedy)g5kgm9 9um). u 0ekyvf7xuj8u;nyq 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 locatjqe ygu9k8k)g .7m uy; xm5un09v fuy)ed at the origin, (0, 0)?

  Use Table 7-1 to calculate 9* lxklme6:kzce 3 +ivthe position of the CM of a whole leg including the foot when m i*k l:l 63kveexz9c+the leg is stretched straight out. Assume the person is 1.60 m tall.