What is the SI unit of8l v5 *y/ 8oxguga1itf8vm sh: momentum?

  When a cannon fires a cannonball, the cannon will recoil backward becau/3-tk ;)0emhstp(tl )/ zgky 1tkwmgase the

  A freight car moves along a frictionless level railroad track at ct i0:pofmil qn-/0u1constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velo0/ inflo-:mc1i qp0utcity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What h,gfixdyw3v.h b8pa z),slr,8appens to the velocity oyr8,3lg x)wa,.ih8bzfv,s p d f the sled?

  A rubber ball and a lump of putty have equal mass. :i k90(wkpy( gd h8duv k0x)tfdvp*0w They are thrown with equal speed against a wall. The ball bounces back with nearly the same spew d9vp*k)k thwdyvx:kf800pgu i0d( (ed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m qa 2gdi57 l/l 0fjqxnea823fpis moving with a momentum p. How would you represent its kinetic energy in terms of th3fd 52qfn lj7/qi xge02pl8aaese two quantities?

  If you pitch a baseball with twice the kinetic eulvzn3/l e,iv ;w sr2+nergy you gave it in the previous pitchll3v/;i+ w,2sue rvz n, the magnitude of its momentum is

State Newton's second law in)r*8n4rl1pk a+x7 t pqvxsm7o terms of momentum.

State the law of conservation of momey vn21qi06 emlntum.

  The area under the curve on a Forc1 sum z9kwcb;m gr)y6+:ke(rce versus time (F vs. t) graph represents

  Which of the followingwygz bm4kf+h.;y5x1 e is an accurate statement?

  A small car meshes with a large truck in a head-on collision.2uoy f;l is+2+ wukompgbg(01 Which of the following statements concerning the magnitude of the average collg2upbo+ykf1; o2u sw(0mg +ilision force is correct?

  Two equal mass balls (one red and the other blue) ar h/*.8t y)da:0kax msxgiaf b1e dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which bahdkt.1a)x8xy smia* a g:b/0fll is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movinq/-0dm-h yb m/z rfuyesphul- c2*20cg east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Ponge0b mhm -chu-* - f2cp/uyldy0z2rq/s ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear m ;3sp4hpl7d5n)nyd./y 3atacraj)nxomentum

  A 3.0-kg object moves to theh0ggto+*h1w lx 2jtuh,w+)xt right at 4.0 m/s. It collides head-on with a 6.0-kg ugtgh*2ottwxx hj,l++h )1 0wobject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker mov 6sdfn+:-0(orfgwf mving at 2.0 m/s tackles head-on an 80-kg halfback(osdm g-6wrf: 0fn +vf running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which u i:a.svs,w0 aof the following statements 0:vw, ai.asusis true about kinetic energy?

  When is kinetic energy cylgmp-l w7fk ;s7r) e;i4zeo:onserved?

  In a game of pool, the white cumt-kbw 6gw 4-vpmkv-**sp o0u e ball hits the #5 ball and stops, while the #5 ball moves away withb *p*6 -twk0m-v 4p vmokwugs- the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rol.ep cg,ty*w;c(d3dl sling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximateldcetygdw(cl;,p 3s .*y,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collisio l-1aav vef4e4v gq1,in with a stationary bowling ball in a friction-free environment. If t-4ea vlv4g1ef q i,va1he 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-on elasticallvx;ak+os i0e4:l4 9vrl3 ai vny with an identical ball at rest. What is the speed of the initially stopped ball after a9vvnl ix4o4 i r30 :v;ka+selthe collision?

  A very heavy object moving with s: s)pnw1- .v:3wpsyyzsb.bc fas3f *hpeed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the sps.wn.wb- vcb:: szs *f33yf )1p shyapeed of the light object after the collision?

  A very light object moving with speed v collides head-on wit ilfye* /.w.jxh a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elase/.i wj. lxf*ytic. 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 upfou;0o l-nft6yc bo /2v0q sw-) ze9a yellow ball of equa boecnqsfv0pu/w 6fo 9z2 o-;)0 -tulyl mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very ligpl+amqn 3kks i/x gw+:cb;+w5ht object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light mna +5:;s/kw ilbc+g+q k3w xpobject after the collision?

  In an inelastic collision, if the mom-q*oo+8 wvugqentum is conserved, then which of the following stateme8g+*o-w quqvo nts is true about kinetic energy?

  Two objects collide and stick t753ex3e1zfaglvw nc 7ogether. Kinetic energy

  A 3.0-kg object moves to the right at 4.zzru os56: bm70 m/s. It collides in a perfectly inelastic co:u 6osbrmz7z5 llision 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 obj1i s l)n2huo.(8az5+pjgqvux ect and sticks. Which object experiences the larger magnitude of momentum chanv o(a8s 1hi. qg 5puzlx2un)j+ge?

  In a game of pool, the white cue ball hits the #9 ball and is deflecto1dk:um7d n2 ged 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 m:1 cfb iffq7 t);;pktand m. Which of the following statements is falsemkp ;:;qibt1ctf)ff 7?

  Which of the following is a falsen9 ibhrgq*xprazpn+15f/k( 2 statement?

  Tightrope walkers walk with a long flexible rod in order tczl7*zzzts 6 glhwhl:)x5 h8:o

  A plane, flying horizontally, releases a bom8x:sy s-etcb;2su nf) b, which explodes before hitting the ground.s2 8f s:excts ;b)yun- Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on aoa3 q9eyhqr2 1 level friction-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 qrh qoay923e1of mass?

State Newton's second law for a systg3s7dr qcr ed.y:o nj4/7tb2tfif;/w em of particles.

  What is the momentum of a 2000188u t4tvbivhutiv /u ) q2i1s-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving souj4kbhe4u c0: ath at 20 m/s. What is the magnitude of its momentuk4jhaeuc4 :b 0m?

  A ball of mass 0.10 kg is dropped from a hv*fo5oz5(fjjc5rl :l6 qve+j eight of 12 m. Its momentum when it strikes the ground f(: qco5 6+l5lj 5re*f ovjzvjis

  Two identical 1500-kg cars are moving perpendicular4wig; 3w gx;ynu/f8qt to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Whfq n;tg4u 8/g;3wxiywat is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/tv;zml+ x5w*t s, strikes a wall and rebounds at 24 m/s. m5*+zlx ;tvwt What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spl/w20r6xrn a xn o7o1gp i -ks1n-x;jneed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction a; 7w nkapso6innxj 1-xo /1r0r-l2n xgt a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pk,qiufyp59 bk; f81darb;j2f laced 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 d8 fy ark152fpfik qb u9bj;,;of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule an2 llr(8k65y k:f* 9sd;zzsp ogjbw/jv d 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 away from the capsule. At what speed does the astronaut mo8yjzb9/k:flod*r v 2pz5l skj(g6;s wve toward the capsule?

  A small object with 6( /ee c0g4 npznc(o1 tfm:dgiajf8g3momentum 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 magnitude of the large ob jgdfiacn 1((etzg eo8f4cnpm/: g 036ject's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40b)2l ,e(3cey r; axhb c0+quwf-kg mass), who is standing still, with open arms. As you coh(e) bwf 0ecr ;lq,y3c+bx2ua llide, 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 lq ixd-tal9l d 3:,ve:revel, straight road at a speed of 6.0 m/s. d i,t- 9vel rx::l3aqdIt collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs yt0dbwn *0q 7yez(msf/.i7 6p huoio. into the rear of a stopped car that has a mass of 1500 kg and they stick toget*o/m.u .by( ndft7p7i0h0izq e6so w yher. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000;bpm12bu ke d7 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collu2;e7m bd1pkb ides 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 200cf(*fr,itn t) kg, 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. How fast will the carcf) t,*ntf (ri be moving after this happens?

  A 60-kg person walks on a 100-kg log at t3iwi8cy kbp8j z24hx 9he rate of 0.80 m/s (with respect to the log). With what speed does the 9j4cwkip83 biyxz 28hlog move, with respect to the shore?

  A 4.0-N force acts for 3.0 s oavs mixv.o.6g8b,,eg dg4w63y qfiu -n an object. The force suddenly increases to 15 N and acts for one more second. What impufqiu,w6xs 4vde3a o6 -vg,.ymgbig .8 lse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 rf*kl ju7 86mds on a 6.0-kg object. What is the object's change of veloc fj8d mrku6l7*ity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brbf(1qk6 oc3 z-ly/nv yick wall and comes to rest in 0.20 s. What is the average force the 3qczb( l-n1y kofv/6y car exerts on the wall?

  A 2.0-kg softball is pba97:owvox nh:1q2k ritched to you at 20 m/s. You hit 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 ave7w9kr::o h1qn bxavo2 rage force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds 36ix 4uqi smaf6n6+bt of the ball right before and right after hitting the tabl36unsmiq+ax i6b4 f t6e 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 bullets, with a muzzle velociv fh1: v 8*emavsv:0lhty of 750 m/s, at the rate of 300 rounds per minute. What is the average force 1vh sv*0a:l ev:mfv h8exerted on the machine gun mount?

  A fire hose is turned on the door o6m9t8uc k8c kff a burning building in order to knock the door down. This requires a force of 1000 N. If the hoseucf8m 9c6k 8kt 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 kg per minute. Itin8g pd1h+(n adn6i; t falls 3.20 m to the ground. Assuming the water don(1tan ddii;pg n+ 86hesn't splash 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, whyrwf inwwjyc.(+qf6z.;f-9 4 (i ck sven fired straight up. Whf.yf c f4rw.;j wy cszni6qw+-(i9vk(at average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are itueh1edf boh ) y849*- wa+zwinitially at rest in outer space. They push each other apart. What is their separawito8 f )ba 1hd9-yhze +uw*e4tion 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 collides sy2e3 h,g s12kz) g0vhaye3es)+m yipin a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 y m g,e y+issgv2kh3)y302sh e)pzae1 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in t/-5vyfbvgu + s;2z ctohe +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velociyusov;- zvb t52+cfg/ty of the 0.10-kg object after collision?

  A 10.0-g bullet moving aj4y3 ienm, td.rl)p u:pid+0tt 300 m/s is fired into a 1.00-kg block at rest. 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 uept4 jtm)ip0n: ,.dr ydi 3+lafter the collision?

  A proton, of mass m,lgpd e7t*x aeh+i+6y - at rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completehadex+7*t y6p g+ie- lly 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 movin p7bilmdn h*i:1(,luw a-8wuag +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the upia*wlb u,md8 1i( 7a:nl-whspeed of each ball immediately after the collision?

A ball of mass 400 g moving toward t9mtvlfej2f69gckz f7e k t5/ flo*5n4he east with a speed of 3.70 m/s collides head-on mo5ffkk4 jf*ef9t6 gz/7v 9n 2etll5cwith 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 5.0 m/s. It collidesr,io:r w1-eyj*s ka.c head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses r:.aj,rs-ecwyiok1 *after the collision?

  A 2.0-kg mass moving to the east at a spee1a2g s3u.olamrr * :oek:hy ;n,icj;bd of 4.0 m/s collides head-on in a perfectly inelas;1:oc;l yoihu:keg32j *mnr s .ra,batic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikq 0 rmi292iv3ijg(kyt s jd6h(es a parked station wagon, who's mass is 2m. The bumpers lock togeth i thjg0 6y(vj(2q9i ismrdk23er in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet travelixj8ug6+p as) wng 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest direct+x8j pgw6u)sa ly 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 collt2l)0hgf sflz +o7n,wides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig)2w,7l0 s ffltnogh z+. 7-1.) 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 travela g c1 tyd4vvfn(:(9wbyo ep+0ing at 60.0 km/h south. The two cars stick togethe nf(v4 0pgydot eb:cy1w9+va(r 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 moves ear,v.i 4ilkt 8bst with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfei4bli,k v t8.rctly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towart(c1(twwn) ue7 b0 9vn lj*zhrd the North with a velocity of 4.0 m/s. It explodes into jru( e*cl97t1w b(zn htn0)wv 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 c9-f 0 udd6xw14qbdd.+cgwc kat the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the d - ubd.wdwdkf 69+1qcccxg40center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particlgos, jf.we o2.xvhp35em 8z-ne is located at (3.0 m, 0) and has a mass of 2.0 k 2.xmzfws .n5hep j-g,8 ooe3vg. What is the location of the second mass of 3.0 kg?

  Three masses are positiooe ar/ :b-kp;tned 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 coordinates of the center of mastpa-roeb :/ ;ks.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 mbbtzl h.pr.*;5 qzh )m, 1.0 m), and (2.0 .bh;lzbtq 5 *hprm)z. m, -2.0 m), respectively. What 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 mass is positiona7u o3spt..l:gbh t7)ij :xrned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of masj uratb.:l7h n t). iopsg7x3:s of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate ttn:a u5+i(fs7j 3qmnc he position of the CM of a whole leg including the f5iqatu7c:+njm 3nfs( oot when the leg is stretched straight out. Assume the person is 1.60 m tall.