What is the SI unit u /,oryl* ,wkpof momentum?

  When a cannon fires a cannonball, the cannon will re) 485zkk)dg2ilxyd; fht-2ht ph/yhl coil backward because the

  A freight car moves along a frictionless level railroad track at consy;2 d+zmp sei+tant speed. The car is open on top. A large load of c2 py;+esm +dizoal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding o-yqvj6xazk0 e,m 8j:+ 4xhubon frictionless ice. What happens to t h-6 jb jy4m+xu80ze,oxvka q:he velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are zypk5 odb55c( thrown with equal speed against 5k5c zd(5bopya wall. The ball bounces 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 represenn5y(gv5 oct 84w;y qrvt its kineticryngq 4c ;v(o58yw5tv energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy xh:7fsqg;:4pkbe qf 8e nmw m+7s85mjyou gave it in the previous pitch, the magn 5 wpq+mh e;4k m8sne78sfg7xfj :m:bqitude of its momentum is

State Newton's second law in termlzam /bx8it:lfa; wlj 7+ h94ss of momentum.

State the law of conservation of b:0lo t z.i8gimomentum.

  The area under the curve on a Force versus time (F vs. dre0s .i;fd4ave1vq*t) graph represents

  Which of the following is an accurateojg78 joz l iujsx4,,+ statement?

  A small car meshes with a large truck in a head-on collision. Whi bmr5vu2 j3ee.ch of the following statements concerning the magnitu5.bvmu j r23eede of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped froyoln 3ah+ i.f)m the same height, and rebound off the floor. The red ball rebounds to a higher position. Who ah i.+l3)nyfich ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movinzy8 orc1fl8w9mc-e7m h.n 0nxg east at a speed of 4 m/s, collides 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 magnitude impulsewm 088f nco-1n.7 yrlxe mz9hc during the collision?

  Two objects collide and bounce *o.(ov l r .6ksnjl/bvoff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides hea ;f xbngq6:22 vchtbzbz 1-/tad-on with a 6.0-kg object moving to the lefhzq6nz c;2tbxg-:1b2v t/baft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebaprn l d3)e,qq l6y5em7cker moving at 2.0 m/s tackles head-on an 80-kg halfback reqy,ldqre 3nl67p5m )unning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the c:n5exhpy- + +xw.uqvfollowing statements is true about kicq p:5wxn+yu.h-v x+ enetic energy?

  When is kinetic energy con 0+w(u8smjs4 ;vlw5 jk;vzvb2j 5qkzeserved?

  In a game of pool, the white cue ball hits the #5 ball and stops:t6m;ibz i, ,dg4zriqmt6b3q.q z o)y, while the #5 ball moves away with the same vel.yq)4qiob,b zi6 dzz m mt3: ;irtq6,gocity as the cue ball had originally. The type of collision is

  When a light beach ball rollin0s(vsotq03b6u o cup+g with a speed of 6.0 m/s collides with a heavy exercise bts3pbco+v6s(q0 0uo uall 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 hvk2k(9p rrv3 9ea4 lytead-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the c vrty( r 9pal94ek2kv3ollision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastical- qfawtam-* /uly with an identia*a t--q/wufm cal ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with y quxri:b:qm* lu 8bh b+0i-n9+*dsd zspeed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely sl-bib9mi*uud *dblqr +y:s 0nz:xh8 q+ows 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 ugv :0bkun 54mheavy object at rest, in a fricmu054 vgun:bktionless environment. The collision is almost perfectly elastic. 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 yellow ball oftty s.bcl) .c/(o:,wqto au9nog+n5 l equal mass moving witl9l, n./o.o: gbotwcy)s(5qua tc+nth a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving wiqonpw5a/:w8 qhkc*u- th velocity v collides head-on with a very light object moving with velocity -v. The ck oac58pwwqnu h*:- q/ollision 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,cgv l/gn uyem(3)p3ar1,uho5,gc i/ k if the momentum is conserved, then which of the following state,kirngmy1g3,v 3 hg ule/c5/(p)u oac ments is true about kinetic energy?

  Two objects collide and o (e78wdn 5xlad95dzkstick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly wz1 nwox uss.1mqos 93k/2 h+tinelaswhns119+qxsk2w m 3ootu/s.z tic 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 and sticks. Which obj m*ugmmf4-q 93m h5xsject experiences the larger magnitude of momentum chanx-hmfq49gj m 3 smu*5mge?

  In a game of pool, the whitefb+a3c t/i:als p 76al cue 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. Which of the fo8s+k 5x. t ifg)d5bc kq3yjkp-llowing statements is false? 5jit5bpcxs qdf.3+k)y8 gkk-

  Which of the following is 1shv;k: uea3q(;gnbwebw o: 7 a false statement?

  Tightrope walkers walk with a long flex 8gl1z i:bkj s +6oz:;gtojtd*ible rod in order to

  A plane, flying horizontally, releases a bomb, which explodesm2q; :gyj kyw to.lxmwn+.w9) before hitting the ground. Neglecting air resiso)w+l;qny.mj ymg2w.tx :k9 w tance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on o+aw/ .s0b*x o ghfa-na level friction-free road. The collision was completely inelastic and both cars quickly came to . -ognha0sbfaxw o*+/rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of parti 41xc nyxg2sl;cles.

  What is the momentum of a 2000-kg truck traveling at 35 m/:x k9z(tpjaad(j)ol+r zrjbzq88,x) s?

  A 1200-kg ferryboat is moving south *ovjk1dnz;3i( u-jqy at 20 m/s. What is the magnitude of its momentumj (qv1nzk* 3djou- ;yi?

  A ball of mass 0.10 k8vne/1w a cpsti-)wy:i14nt pg is dropped from a height of 12 m. Its momentum when it strikes the ground vain8itne- p 1tp y:1sc)ww4 /is

  Two identical 1500-kg cars are a6 zw5 z9cqja*moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is z* wzqc5aaj9 6the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizont/ rbof9it yo; 9cxglpk:n/( /dally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momenk: / rfd;x 9pc9tgni(lboo/y /tum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed0/ vu( )orggtk of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change ) g(ovtg/ 0rukin momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is plachjgi ee/ 4eb/0ed 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 r jeb0hg/eie4 /ecoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spac0grc- ng/uy; 0v;heuae-walking outside the space capsule and is stationary when the tether line breaks. As a meanure-0;u c0ggh/ nv;a ys 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 momentuqhebw:g* 5dit(94 ltq m 5.0 kgm/s approaches 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 mad:9(t*54gihqqlt webgnitude of the large object's momentum change?

  You (50-kg mass) skate7k:cd j3xnc y* on ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. cx:d y*3nkj 7c 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 righ z(.wxc6wp-wqwh*jl)m2( likt 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 the collisio(i.h6kmlx*qw lzw cjpw-)w 2 (n?

  A 1000-kg car travelingh8jce7vg v0f63 -zc;exa cl9p at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is th9eh3l07 v- ;acpcf zv6g jexc8e speed of the cars after the collision?

  A railroad freight car, mass i)c4o.o w9i6q igay6x15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 5oi.q6i4goi a6) cw x9y0,000-kg second car, initially 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 nez2ghtag 1 1igo y:h1c*gligible 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 fizy1 ag1t2g*c1 hho:gast 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 respec+hy:ir6z dtyqw zr9/ r4/fxa*t to the log). With what speed yr96 /:+df /* 4rzaxtwrihy zqdoes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object8zn9;ja7lnsz fg 4: d+ duq0eu. The force suddenly increases to 15 N and acts for one more second.dua:d eg; fz7 n89 j+4s0nqluz 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 obw3fkpa- t3 5oawq -o9f z,ee+zject. What is the object's change of velfw-pkz5ea9a- w3+tqz3oefo, ocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall limm)t0/y h: xand comes txylmm)/h i :0to rest in 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 hit the balcsyf p 8,r*-jebk ++;wg0o hv nxjc; gd:5u:snl back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, gjwj8x,;sv npoe;f 5+hk:y-*ncdr +s 0bg :ucwhat is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right be4v;qzd d(:ty7mt; kg 50cw 6sjton(hqfore 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 dt0t:zt56;k nhjw s(cq;doy(q74gm vmagnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle velovrpfd1/te-j/ city of 750 m/s, at the rate of 300 rounds per minute. What is the average f/fp de/- vrjt1orce exerted on the machine gun mount?

  A fire hose is turned on the door of a burning0kl dgsnrs)ytp s vg, x(;2*h4 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 osp k2(ssxyg ,*gth 0)l;r4vdnf the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg p,*:9wlps/7 k6qzsb0p np dj5jqq l if-er minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average forn-ql p/ il 7: sj0q5pj6pd, fbz9*qswkce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velo+rl:m)1q fqjacity of 40 m/s after 3.0 s, when fired straight up. What average thrust raf) q:1+lqjm force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at refz qamb39 tijnwb2r-f: 7gm/wk 8q.2vst in outer space. They push each other anzw9gm.t-2f7/wrqbk a 3ifm:bj28 q vpart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speofyiq545pu4p i8*7v8 au hrd;xj sk8h ed of 2.0 m/s. It collides in a perfectly elastik;hj u5pq7dirf uv8 *yis58hx 448p oac collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a veb (dd-*ms whc1ehpu2n ln6 d+3locity of 0.20 m/s in the +x direction makes a head-onn dwue6mdbsh3n d p21 *(+lh-c elastic collision with a 0.15 kg object initially 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;5v k+rxpjhp-9s 2uh:a, bljk . The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right k+x b,p v:2kjp5js r;-lha h9uafter the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (wmhbn js6.:2p98l dljohich consists of 2 protons a2m: jdojn 8b9p.s 6lhlnd 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 mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of madu4jirf):z 7 wss 100 g. The collision is elaj :74ud )ifrwzstic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70j;n)s vdp ;dp2d7sf:fvs26fn m/s collides head-on with a 200d6vd f 2p;s)v;jf2s:n7 nsdf p 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 5.0 m/s0e e-nt27 (:go.ubghkb wlh+n. It collides head-on with a 3.0 kg mass at rest. If the collision is perfegk t lnbge-hb+w 7eh0on2:u (.ctly 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 u : wrh cl zr ya,vo0.qb()iafh;e/r;/4dpp7 rperfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during thishuv(r:h/wer )pq,4yd;razola/ ic;frp7b 0. collision?

  A car of mass m, traveling with a velocity v, striaq3 pabt z)lbd,o1/3-3 kgwdrkes a parked station wagon, who's mass is 2m.3) /da3 obt,z-3 abpdkgwl1 rq The 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 ve-m i1b01 zh qxeezy:h:rtical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verticalh1 :bmzhyee1z -qx0: ily 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/pxrhmw6j94 t.h east collides with a 3000-kg car traveling at 60p r9ht6xw.m4j .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 k -2oc ,f3dwrxrq 1f3 o((mivrjm/h east collides with a 3000-kg car traveling at 60.0 km/h southd3, wv2irocfmrr-1(xo( j 3qf. The two cars 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 A movracngff35go+ numz,y +7l8 -eohvda9 a-b;;yes east with a mo3; -e+7+-8 o,9azdnrfvouyl mcba5gf;h yg anmentum 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 combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving t/.lzz5n0 v :4irgdj msoward 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. jr4 l/mzivn .zs:g50d0 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 rlz:p pvs5fu ;x(sv7:v+o:i+cwizk* 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axp:+: 5;rupw z7+vsi:z vflc(vx i*oskis?

  The center of mass of a two-particle system is at the origin. One particleesda 3ob6nh2 m(ec-tx,1mrc) is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the lo2(dm ) hace1b,tcxeo smrn-36cation of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0,or 9u17lvnl( kxdf s:4cjr ;q5 0), and 4.0 kg9kd;c q n(j4rf lrv:5sl o17ux at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are q04g4nm 9w chnldn0l9located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of t4ncl wh gqndl 009m4n9he 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,gtstfxhb **( (*ua +58ypnpv f 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*uafv+h5gp bt(8n(*p sf y*xt, 0)?

  Use Table 7-1 to calculate the position of the CM of aw+5 j u ag/fatrromtdtn+u 6: p:;:fi7)x ytb7 whole leg including the foot when the leg is stretched straight out. Assume the person ia:fgxpo 7u76ut+ n 5:ytda mi:w)/frtbj; tr +s 1.60 m tall.