What is the SI unit of momentumo7c+c ,e waev0-)zp d9bsurp- ?

  When a cannon fires a cannonball, the cannon wilr5 jelhge1k tvsitzh-2u 7 ; c71pv6;il recoil backward because the

  A freight car moves along a frictionless level railroad tr: 0btzsz4s5msjwl f,ks1,d0:ph se f 6ack at constant speed. The car is open on top. A large load of coal is su 6s,:41fpz00ss w zss,e: tkd5bjhmlfddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless r)i0nq: p/nfvice. What happens to the velocity of t/pfin : vr0)nqhe sled?

  A rubber ball and a lump of putty have equal mass. They bpdt9+0 pku: xw57a. sn j(qfvare thrown with equal speed against a wall. The ball bous0 9.djnvb: kux7p+watf p(5qnces 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 momeoaa4sc7te);ke b zh *s)k(r-entum p. How would you represent its kinetae)k *t7ksz(oe);-a4 ehcs rbic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you6 rln8tnxmo;a02fiw 4 gave it in the previous pitch, the magnitude tn8flaw x2;60r4nmoi of its momentum is

State Newton's second law dv- di3eq nu .t9.fcq2in terms of momentum.

State the law of conservatio6p 263w7ooif*prsmzr9fee n- n of momentum.

  The area under the curve on a Force ver9 -2/6cpujbt (nr/a) lymeywksus time (F vs. t) graph represents

  Which of the following is an 9ahal)sjr(p 12yj) wgaccurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the fs:(s ,7vfk:y5 hsdfvvollowing statements concerning the magn kfs7 (v:d vvsf:h5ys,itude of the average collision force is correct?

  Two equal mass balls (o(t.kltl47 euune 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 of impulse during itl.(4 7keutu lts collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collid .ky+(vw8x s-d:zu aak))vvr bes with 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 greater m-z wy8duxk(. v :)ar+vbkas )vagnitude impulse during the collision?

  Two objects collide and e5t5v/ md)zqle6 r 6bpd1cyo 4bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. uxeh0la0 2*wsIt collides head-on with a 6.0-kg object mo2sa0l*0e wxh uving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football lineback3erezdu/e09+ii/ *lgq. n9se i-kxf ker moving at 2.0 m/s tackles head-on an 80-kg halfback rs. ie/gi ek-ez3+ek9/qf90d *uxilrnunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, jjam5wxbk4+cv1 oz04 then which of the following statements iocjm a40w bx+zj4kv51s true about kinetic energy?

  When is kinetic energy conserv1 8squ x(/ 0l iqhs7wsc0 2jaug7eyq1oed?

  In a game of pool, the whi7 jilj.wmb7qx) m 5p: nmnv1/mte cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collismmx.n bq7/ 1v)mp5 7njw: ilmjion is

  When a light beach bala9 s78wk cuse*bl0i;x wqaanf. . 3vljn(k15rl rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach bs. acwk1ix7qkl358(na w u0 a*rvfne.9s lj;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 col pw 5+dx j8/(rb,rnivugni65qlision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly er (,q 8/ b5i+6dnrvigxn5wj pulastic, 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 elastically wyxx7 d+:b2d xc1: n81fwwaq sn +/vdqyith an identical ball at rest. What is the speed n:n /a 781q 2wsxxy+vxbfcydw1+: ddqof the initially stopped ball after the collision?

  A very heavy object moving with speed v collideb p;i4 v89 n:jsz6yw qardo-xz/wu(2ps head-on with a very light object at rest. The collision is elastic, and there is no friction. Then9iwso-v6; ua:przp4 wq (z/yx 8 b2jd 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 d2pp c- 6-:ct/iwnphd a very heavy object at rest, in a frictionless environmenn6p cd-p/ctw - dih:2pt. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity o1)pdkwuw 6v: mf +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 the1:wkumvp6 d) w velocity of the yellow ball after the collision?

  A very heavy object moving kgy/pl n-7n8 awith velocity v collides head-on with a very light object moving with velocity --8na/ pgylnk 7v. 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?

  In an inelastic collision, if the momentum is conservej1, ;sw l g gm0z9v;u,gky.hk38bjxa ad, then which of the following statements i8zaj wh0,,ls ggy; 9 ba.kk m31xuj;gvs true about kinetic energy?

  Two objects collide and stick together. Kinetic energy2o*2/ + nbg+t yvjry zfh)q:mil1s(bg

  A 3.0-kg object moves to the right at 4.0 m/s. It collides)zojm 7nghl ucp 8j1)6 in a perfectly inela 1)c6lo) jnh8z7 mpgujstic 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 with a large object jjm:;sc68 hqd and sticks. Which object experiences the larg8mj6cq ;shd:j er magnitude of momentum change?

  In a game of pool, the white cue ball hits z2x)z julqm,izz2 1+ov ,d mo (.ehrd,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 ma -xgbwv8)0*em 9; jx lcnwbrx)sses, M and m. Which of the following statements is false?vxcb; 9b)el)wm*xr8 x-g0nwj

  Which of the following is a false statement?jgxy yf/ 6 dv2f .w6c5cox2v(s cn0i9h

  Tightrope walkers walk with a l6jzjehga (n 7 j.3k(prn)myk1ong flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes xy j ym.l(5e :wd-v9clbefore hitting the ground. Neglecting air resistance, thewy mlj(5 .-xl9vcdy :e center of mass of the bomb fragments, just after the explosion

  Two cars collide hea lcn ( elg;:ej:hm)r/u y)-ahvd-on on a level friction-free road. The collision was completely inelastic a -ly:/h:vn) a;heer) m(cl gjund both 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 h szulquug 2m(l/ex3;q*; uh2for a system of particles.

  What is the momentum of a 2000/;7h 2: g,tonzzbalg:l uxwv 9-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m7tm+- ;kchnkaoz ,ca4k-e9l/a ecl o)/s. What is the magnitude of its momentum?tnec, akc;la-l-eo +9k /4hoczka7 )m

  A ball of mass 0.10 kg is dropped from a heigdrd .+* jsahk3ht of 12 m. Its momentum when it strike djahk 3*r.+sds the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One pnc.d,otu gmo5j i6 :t86di8 ymoves with a speed of 25 m/s due north and the other moves at 15 m/s dm c8o 6 5dit:,p jno.yti8g6udue east. What is the total momentum of the system?

  A handball of mass 0.10 kg, pq 2zis 55 ,eu6-a0o)lvhupaztqsj6(traveling horizontally at 30 m/s, strikes a wall and rebjp i(up5lzo ah e6,zqv-u s5q2t)06asounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, inir2 s(:3tbxz4sxgdeb9tially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direct9 g:4b2rstex xbs3 dz(ion 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 p6w( kyd-h-zzwlaced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 3-zyhw( 6wd-z k5 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is sp4.x s,,jb a9hjfkc-gl0hza 7 xace-walking outside the 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 ha h fxc 0j7lgj4akbz,a,xs .-9hmmer 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 hlasa/gt68jv8 pbzkvp7f ;j: 4 ead-on a large object at rest. The small object bounces straight back with6tj gv z:apbkfvp7; 4 s8/jl8a a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate h zfmy:g 67e 2gguv 6n: w;lzbobq;j5:1muv +oon ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each;6 m:wo q v;+yjzf1:u:zohbu6lmgv b7 ggn52e other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right alongksm8e4. ow*ous 1 zjl.uu+6 q7ukv3v w 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 thewqk uevzo6uj 1. kuv 8uss3*m .ow4l7+ collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car0,fq 4 r-yihr :vkdld1 that has a mass of 1500 kg and they stick together. What is the speed of ry f0iqr:4 v1,dhl-k dthe cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lvy, l(j. g2 dkzvlhwe9u5;s1wevel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg secondy gw2lw1kz.s 9, luh(; vd5jev car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 205:a ha 6qnq8 usnfry2(0 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man dropsqn(an6ys5 8huqfa 2r: 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 rat ,fhhlrqha(b98q 2rs fy*em*8e of 0.80 m/s (with respect to the log). Wi8s,hm9arqf82(** hf e lryhqbth what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly- ahgz7sbdn.e u1v a0: increases to 15 N and acts for one more second. What impulse was imparted by these forcesudzan g:0vabs e .h7-1 to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the objzj6g8uyj xp nk(,w,9lect's change oy,x,g9lnk (6wujz 8pjf velocity?

  A 2000-kg car, traveling to the riufv 9y2o8f;hs ght at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average fof osu28f9vy h;rce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along thef *f3m0kglmx ; r:o 6qp/gucg* same path, and at the same speed. If the ba 6/*pf*u:q3xm0or;klg fgg cmt 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 o *h*rxkn9-8m/xmo yz;ui xm)qbck67 jnto 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 tablem m hx u7yjk*ikbx)-mzcon*;qr/6x9 8 top?

  A machine gun, of mass 35.0 kg, fir /d5r2mf9dpdm; x8jvas +3kpqes 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute.dfsm8p2v ra 3 j/k9 d;q5m+pxd What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in bqspyk -;v r77order to knock the door down. This requir7q7prbv -s; kyes 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 theffya kjw;3fo/hg 9xwvcyb):a .8r (w1 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 exer:xyfvwwfabky o 8jc39r( fag.;)1/hwt on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 406mhmw8 rd* h)2 2k:lfvtsl mp/ m/s after 3.0 s, when fired straight up. What averag8d lk2 l6tsh/*vf2m):pmrwmhe thrust force does the rocket engine exert?

  Two astronauts, of masqul 8 ilq83iesa3 va7,ses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut haslvii378a 3u e8q,alqs moved 12 m?

  A 3.0-kg object moves to the rnkrs4(t,ti:s j6oz 1ojhi;- sight 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 1.0 m/s. What is the total kinetic energrzt(i snj-;1s oj4kht, i6:osy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction mak t9jov+larf+p,x i** fes a head-on elastic collision with a 0.15 kg object +v9xt,pj orf**il+f ainitially 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 fired into a 1.00-kg block at rest. The bufl.udih +758p otn/eb llet emerges (the bullet does not get embedded in plhofbt.e +75d /ui 8nthe 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-part,cx kcxqe37 x *xz)5kuav1 tj7icle (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 c3kvjtxc k7x,z e5a 7x*c1u)qxollision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a sw x3ezhc w n5akh64 (7*yxbsf/tationary ball of mass 100wszw7 c3*(6ehynh x5fb/ kxa 4 g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving towrt6 qd/i3 vwp4 j;t.mwcjb4atu1; g 1mard the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting atid j4wpga;mq t1v4t r.u6m/w1; btj3c 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 qjvu7;jj) *be 6nfhj(speed of 5.0 m/s. It collides head-on with a 3.0 kg mass *n ehbjqjv7)6j fj (u;at rest. If the collision 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 collides head-on in a pef53km3l qb l)xays+( .ne pw:u aja*s)rfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is 3esjll a )+ap:n5*k.fqa 3sbwmxyu()lost during this collision?

  A car of mass m, traveling with a v2/kf4wwart (i elocity 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 rwa2i t/k( w4fthis collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in aks ip)n fvbz)7o vu* fw(3j;b0 2.4-kg block of wood a rest d;bb*)f jvz73ps fi0o(u nw k)virectly 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 km/h east collides with 0:8l l,bmwybatn7te: a 3000-kg car traveling at 60tlw l 80tbabe7 m,y::n.0 km/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 collidxj4z1m q+udq +) gv+wwad5jj3 es with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1 jx+w1wa+um d j5gvdzqq)3j4+.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east with u r.)2julcb9y 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 their2bc) luyu .r9j combined momentum after the collision?

  A small bomb, of mass 10 kg, is movi yj w1r.x;y4yang 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 a ayy4 1wj;.rxythird 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 sits at x = + 21.0 m. Wy,:;r m q)xilp)iq 2 4xmrv2/8tcm zvux14tgqhere is the center of mass on th1) :/umrrmm4vqz;q giqpxi4 ty22xlc)x tv,8e x-axis?

  The center of mass of a two-particle system is alq9+,*.lk q;xjci-k u2 iijvtt the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of ti2tuik*q - ilqcjx ;v. k9j,l+he second mass of 3.0 kg?

  Three masses are positioned as follows: sr,gg7fj,v)x 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 cent , )7xfgvsrj,ger of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (lt7hvm/ km7-jl5 i*wp 1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whatklhwvm ltim j/757*-p 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 mas /chpjd35idm ;v.jmp9s is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of d3i5mmh/p; jvd jpc9 .mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position6 mb-nd9zmnr .10pzp q of the CM of a whole leg including the foot when the leg is stretched straight out. As 6n-p9d n0zzm.br1q mpsume the person is 1.60 m tall.