What is the SI unit of momen/+hw xtnu3 olv(b7/ orr.q4ottum?

  When a cannon fires a cannonball6wu7plfy phb5(- d7v.fcq 0js, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track kdwy a+ tf,78dat constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to ,kfdt d8 yaw+7the velocity of the car?

  A child falls sideways off a sled while sledding on ffqya 75of cx76rictionless ice. What happens to the velocity of the76foca x57y fq sled?

  A rubber ball and a lump ez4d(skaqk//* o prs0of putty have equal mass. 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 greater momentum chan/ok dek/*aq(z r 4p0ssge?

  A sailboat of mass m is moving with a momentum p. Ho d9iyau )n /gsox83zm85lqk;h w would you represent its kinetic energy in)9 agm/l 35suk noz8q;d8y ihx terms of these two quantities?

  If you pitch a baseball with twice the kinetic ena;daxhr**n1t : b kz9lergy you gave it in the previous pitch, the magnitude of its momen9z nakb d*axr th:l;1*tum is

State Newton's second law ino)cf) fx4 xbiq t/ w/speu/)4x terms of momentum.

State the law of conservation of mttbu;51/yk9aswf bc ; omentum.

  The area under the curve on a For1px:9 wjp kv3z o;u)v0mqblg,ce versus time (F vs. t) graph represents

  Which of the following is an accurat7tfgm,3 0g n4s,wobune statement?

  A small car meshes with a large truck- -2tu y a opiblffdr*7g782ti in a head-on collision. Which of the following statemenfog*ly ia2t7 fu2-d bp78-irtts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue)getd jc9kqo 4 +0;kh+a are dropped from the same height, and rebound off the floor. The red ball reboun+o0h ;jd4 cq+ketkg9 ads to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a spe s-bb 4au )y9verw ,7rfvey-x;ed 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 oberry y) -bsu abv47fw,-;ex9vject experiences the greater magnitude impulse during the collision?

  Two objects collide a+m-* 7 q *etba2pvc2 6 it0bcjaj(a )agrmx8qfnd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It; * mougf8vt,+q-ptvl 5; mi0xxcot a7 collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is corretq7apvotivg* ux 0c5l+o tx;,f8;m-mct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on av g 9v+/wjll+qk-mz)9 ;1i quznpt( bsn 80-kg halfback run1nz+u+(i9tlwq);j vpbls q k-9z mgv /ning
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 foieac/: diyxt (4z)x/y llowing statements is true about kinetic energyidy4 ca( z/) yx:/xite?

  When is kinetic energy conse .ywghd )t76tjrved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the mvm h-hi;*usz +sc fewa1h 6,4#5 ball moves away with1wc+hm6v;4ai- uehhfzm*s s, the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling83yh,7h gj6(i+dyyr jd+hx ab with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision +,yd rx3(h hg8hb+ 6 jyjadi7ywill be, approximately,

  A golf ball traveling 3.0 m/s to the right collhs/ -3cq qtg/yo4q47q qn z*hxides in a head-on collision with a stationary bowling ball in a friction-free enviqsh4/yz n/c qoq7t-x4*3hq qgronment. 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/s collides head-onev/g(9.7 w djlu+h jcv elastically with an identical ball at rest. What is the speed of the initially stopped ball ghud v+j7 elc v.(/w9jafter the collision?

  A very heavy object moving with speed v collsny2k9gx,ujly5 r+r ko3r9t8 ides head-on with a very light object ayyo2l 8,r+9x t jrurg59ks3knt 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 wij)l t rwfrh-)a 82 *u1iy*hyqvth a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elash8t)wi)y1rfuyj* a*h rq-v 2ltic. 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 ci*kq4n t k4zh3vvg-kr:1r98l .yev byellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball aft.4t4v3g19kyeb q8ikv-k rrz*vlnc: her the collision?

  A very heavy object moving with v g+j/a /43i2sccrjpfielocity v collides head-on with a very light object moving w4i/ 3cpjafgsijc 2+r /ith 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 collision?

  In an inelastic collision, if the momentum is conserved, then which o.qo8eoe l t2;ef the following statements is true about kineoe;lto 28q e.etic energy?

  Two objects collide and e;+) qr)lfnvc stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides ih ,,eb jovbnsre1d ;za,+ac-9n a perfectly inelastic collisibd91arc,;vheb -j+as, nze,o on 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 expers (jl0wc1bgi18s5a jniences the larger magnitude of momentb nsgcj01wa ls18ji(5um change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectedl s7zjj--1 xau 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 stateq+ b;r kr*1rd2mosvf2 vft*p:ments is false svormf2*tb dk +rfp2qv1*:r; ?

  Which of the following i 44dviudd:dt 9s a false statement?

  Tightrope walkers walk with a long/x q4 +srjn+kl flexible rod in order to

  A plane, flying horizontally, releases bi tc85b)/q9arhsxx 8a bomb, which explodes before hitting the ground. Neglectinga5 b xhxcrt)898 sq/ib air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision wasc/4. r z ad-)5wrgknxr completely inelastic and both canrc.rgx-)r4d w/ 5kzars 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 for a system of particles.m 14- vzh*ahp0jee-ke

  What is the momentum of a 2000-kg tr1uubxnp :k8p vs cv:e.h,z9a .uck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 2c+ 3voxq6-vlt0 m/s. What is the magnitude of its moment cvt+-lvqxo 36um?

  A ball of mass 0.10 kg is dropp np,pw(pkl ig2hcr2qs. l9o1- ed from a height of 12 m. Its momentum when it strwskih pl1 g.rn,pp9( o2c- 2qlikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wi jah 5/, m o,,h9nv-t ul;;xzyhmz8cexth a speed of 25 m/s due north a ;-5j/h8zvum,xm9,;xzoyhhnel tc,a nd 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 30 m/14z7 ,jdldvkqs, strikes a wall and rebounds at 24 74l jvdkq1,zdm/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, dg4()6ui (cqihs z0b zis struck by a racket causing it to rebound in the opposite di4)q(0hcbz is( z id6gurection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (exc2p rqtg1) m*b hqc6o) .t+bvgnic*6ed luding 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 iq ogvm ct.bgnetr1h)b*6d *26 ) ciq+ps the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside 9q8 rd2s:c x3w,./nbvyjp pbkthe 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 hammer at a speed of 14 m/s / ,:nxpqsvrb.cy2pd8 w9kj3 baway 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 object atvraa r;x a bud(.-o-x- rest. The small object bounces straight back with a momentum of mag--brxar x(-u a a.v;odnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on d nqt3 6ajvwc 0s1v*cpivi7kd.3jx3 (ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. Add73s t13iv .jvwiq6 3(vc0kpaj * nxcs you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a levej+zj8n :mnu02m/(ziyp tgwc 5l, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 k /zn:g8(+ 2n5mwpyzmuc 0jij tg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s run n1gt* tpglh;.s into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after thelh t.;1ngtp g* collision?

  A railroad freight car, mass 15,000 kg, is allowed td9io t lawm l+1nzf:(*o coast along a level track at a speed ofoft:1d* zwl+( n m9ali 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 coupling?

  A railroad car, of mass 200 kg, z ie6;3ry0pwm rolls with 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 ;3y0izpmr we6. 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 respect to thej b9u. d(dr7:/jqrhc e log). With what speed does the log move, wrcj9 u.ed (:h j/7dqrbith respect to the shore?

  A 4.0-N force acts fbad q) )i0s/ccor 3.0 s on an object. The force suddenly increases to 15 N anci/ds )abq0c) d acts for one more second. 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 i9kd. (u0eq lx2ujk+s87o wyp object. What is the object's change of veqk+.9ei pjuuw8 ky(s2l 07oxd locity?

  A 2000-kg car, traveling to the right at 30 m/s, coll t,v.5q)n -dckrtp:raides with a brick wall and comes to rest ic)-pv5rdn .ak trt,q :n 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 ad ,h3te mko6 k.-l;n k9t5l-fhbm l-ghit the ball back along 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 average f9t kal .khf hnd,6-g;t mble-k- 5oml3orce the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds ac0b0xvw1;bw6mpw5 a8k;e nz of the ball right before and right after hitting ve08 c60b;pwk;an5 amww1 xzbthe 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 table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullex/(e8p c lq9ycts, with a muzzle velocity of 750 m/s, at the rate of 3(q9ycle8pcx / 00 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on tuflm s62hmv7 m:y p9*phe door of a burning 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 of the smp6 sp:m9 yh*u7m2lv ftream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the ram :p:kh/xqyk;xjkd*y. r. *zq te 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 onyk.*mqp* x.qdz:jx yk ;h :kr/ the ground?

  A toy rocket, of mass 0.12 kg, achieih ))/5tsp k+.0i9uiip8(hc qt mwhbbves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrhhpi)0q.)wisi8t /tm (k5p b+uc9bihust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spac q55td b4:-sg42vozimn tb g+me. They push each other apart. What is tmo25d5t-g:4 +vmbzqnis g4 btheir separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a sp54ze ,/ntikn eeed of 2.0 m/s. It collides in a perfectly elasticinkt,45n/eze 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 h5xdi1 yv, o(;g3( bds gaj1lqvelocity of 0.20 m/s in the +x direction makes a head-on ela,g11(bdg h alxovsj;35diq ( ystic 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. The bhc 2ch/ 4vvqaz -2p,wmullet emerges (the bullet does not get /v 4ch-p wzahqvc 22m,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:of) oix o2uz)uck head-on by an alpha-particle (which consists of 2 protons and 2z 2)o :xiofuo) 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 coqzzaoorc z nb n/*h(z 1s5d1))llides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each / o sznn1)z)o z*az( 5drhqbc1ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/sq1o )pz;k 07ozbrdo ((o a2ofk collides head-on with a 20fd70r(a2oko;ob(zq 1o z )p ko0 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/s. It colde 8j bx36 s)ue-7hkw.rw 1xzglides head-on with a 3.0 kg mass at rest. If the cgzxd18j e6w7-euk x)w .r3bh sollision 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 inogg5o w1le 1iqrj2 gbz3ai4 n4*/nf1u a perfectly inelastic collision with a fg 1l 3onb54gg/*eo rnazi1wqu 4i21jstationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, striksu.g oinmc0+v 5 yd*;fes a parked station wagon, who's mass is 2m. The bumpers lock to;c d m.yn0ifgs +ovu*5gether 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 vertical direction buriesy3as md4 t/q5d, pj q.gc5pz+p itself in a 2.4-kg blockq 5p4 .cg+qs5adpj3y pdzmt/ , 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 travel pujd4,j: ul9bing at 90.0 km/h east collides with a 3000-kg car traveling ajlbu:9,udpj 4t 60.0 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 collides *;i ybcf:99h1f/,zl nheednf with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the cn hh i/ ff,*ylbzf;e:199edncollision. (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 moves east with alplwj.k:j 3.kwt*td 1 momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitudepd t3: wklj.l*.jw1tk of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward thix;zd t)ifi6rkgby70:w +i4u e North with a velocity of 4.0 m/s. +b kgd: zii r 0tu4i;7xywfi6)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. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a(yzu . at(ny:u 10.0-kg mass sits at x = + 21.0 m. Where is the center y(zu.tuya: (nof mass on the x-axis?

  The center of mass of a t//n9ccnp9d6kv(ry jgxi((uf 1g 8xr rwo-particle system 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 of (urgr1c yfj( i/v9nx(nx rp8k9 dcg/6 3.0 kg?

  Three masses are positib8tdv9z 9v3 hvd)nl hjd;1 ;9cegfsc5oned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.cgf8;nd)e1v9cjzdh h3v 5t;s v9dl b90, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kgs (d,tmtk4x1ty xc,i1, 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 center of mass of the syst(,4x1tdst, y ctixk 1mem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg pb w.rs3y4, qwmass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the systp3qsr4 b,ww y.em of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate thecx/kbngik0f0 zr +lohj17i :+ position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 h+ j:n /zif 7roibxlk1k+00gcm tall.