What is the SI unit ofm ) gf6z jx90f as2p7xuyw*5ep momentum?

  When a cannon fires a cannonball, the cannon will recoil backwar0,l0l *spaqjq tq0up/d because the

  A freight car moves along a frictionless level railroad track at constant speedh-o3wq8 ml3.rnos nr 0. The car is nq38h0l smr wo-o3.nropen on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What ,o -b39piqiw)6xsp f mhappens toqi3 pw-, m9spfixbo6) the velocity of the sled?

  A rubber ball and a lump of putty have equal m2yjrw 52ax4b gass. They are thrown with equal speed against a wall. The ball bounces back with neabjrwy5x2g 4 2arly 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 mou5 4b(lxqiizpi0 oh)xm j-91tmentum p. How would you represent its kinetic energy in t x9h-p 4oq1l iut05z) ibj(imxerms of these two quantities?

  If you pitch a baseball with twice*:d7ro a wylq;s3o* kxn -dxh, the kinetic energy you gave it in the previous pitch, the magnitude of its momentum is; sxd-x od3*nlh:7kwyr*o a ,q

State Newton's second law idl: t)ot*0 ofkh;7b yb3wv:vmn terms of momentum.

State the law of conservations0) d flekg2ry90 taf, of momentum.

  The area under the curve on a F63iswg;(g v g yjf5ya4orce versus time (F vs. t) graph represents

  Which of the followiooemo: drr2p/g6-aw 1p5phg) ng is an accurate statement?

  A small car meshes with a large truck in 1xw k ,we4 p.:dsuzfb,a head-on collision. Which of the following statements concerning u1xkd4 ., ,sw f:pzewbthe magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other b5wmdzm6/nh(r/7(pyqjt wab h - 9hwb.lue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Whi7j .r wa(qb9hm/twhp n/6 m-5zby(hwdch ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving eas2.+rostzw 0olw czal/1;:o wi t 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 impulse during1 tcw:w;0 zorolao2zwi /+.sl the collision?

  Two objects collide and bounce off each ovjqh;zp j eka;/ c zr5ed5tou )+ve,:wf;8hh 1ther. Linear momentum

  A 3.0-kg object moves to the right+r1 do 33mmqsawfnw2(/2r jwb at 4.0 m/s. It collides head-on with a 6.0-kg objec2df3(1wwrm qsr+ 3 j2mo/nwb at moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-osh - 5pa-ncn )jxlf,:vn an 80-kg halfback rjv l casnnh- x)pf5:-,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 i o,oxa5rph+a-s82jd-a veu1 following st- oa8rvj 2s+deapx1iohu,-5 aatements is true about kinetic energy?

  When is kinetic energ6uem:hr vy4h 6y conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, whim3qf-uzws i1abv.()i,kru6ae bhv .l:ov ;5wle the #5 ball moves away with the same velocity as the cue ball had oaqsou ;zhkvru :a( .wbwb l,f-im.3v e5v)i1 6riginally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides witi+-,yxr tc 2izh a heavy exercise ball at rest, the beach ball's speed after the collision will be, approxi,tziry +c- 2ximately,

  A golf ball traveling 3.0 m/s to the right collides ltn0 4ym7 m+iuin a head-on collision with a stationary bowling ball ntm+ilym0u4 7in a friction-free environment. 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-on elast ti.eqarao171ytjq4 cwvlgx 7h9 )4 s 7j/r1qhically with an identical ball at rest. What is the speed och7g7 4t1j ar7v11q 4 iwqhx jqa)9rtlys/.eof the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a vee+qirctqiuo3 b08.o 4ry light object at rest. The collision is elastic, and there is no friction. The heavy object barely4q+.boeou 80q crii3t slows down. What is the speed of the light object after the collision?

  A very light object moving with speed f 8a./qgkm gc+t; mc32:dodixtkv.;pg m nz*3v collides head-on with a very heavy object at rest, in a frictionless environment. The colic ; mg83mdq2dkf *;tczg /. ov3tp.:nam kxg+lision 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 withm w.a9dc o+hxb, ho65c8abky w1u,e v/ a yellow ball of equal mass moving with a velocity of -2.0 m/s. k1, cc.dobaa b8v6ohyew/+m 5,9xuwh What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on +jahy;aue ,p.mf +b8bvqb rn,/3uny2-/g q dmwith a very light object moving with velocity -v. The collision is elastic, and there is no frica3/bpvynb .e m,/yrunq-gh8d u2 m ; f,qab++jtion. 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 conserve *;dosfiu03jy l7+pcaojx4)t d, then which of the following statements is true abf y47o* 0;+3joaxldsp j)tcuiout kinetic energy?

  Two objects collide and stick tobbzq 1mzz 6f,pa;08 kegether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inelcg 0- g;1mllxqasti01- xl;lggcm qc 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. Whichtzkvpg /8) 0eaw* h(le object experience*0g8 ktv/wa()hpe zels the larger magnitude of momentum change?

  In a game of pool, the white cue b* pmh mbrf3+6jall 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 following statements is falss/(hhhd x0q c8wz,oogkt-p;;ec;/p,0q whsodohkz -thx 8; (g?

  Which of the following is a false sta4c2htc/vu :zswxzd1gf/l.v-l 4lg, utement?

  Tightrope walkers wah8u*zgj lxj o: xa yea;wib9, 97bvf;+lk with a long flexible rod in order to

  A plane, flying horizontalloc:mpil ka78q k-tf)opg/ ,skm*.) k oy, releases a bomb, which explodes before hitting the ground. Negles)mko8k*k.q lpt : cpio7 )-gkaf/, omcting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on * nqle -.j1-wb u6ws6af(7oknp h4hjn a level friction-free road. The collision was completely inelastic and bot ou.jl6ns b-jw6n1ak-4(*7 few pnhqhh 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 .fd+fuoh:am ys3j6 y- for a system of particles.

  What is the momentum of a 2000-kgt z (-c: ftsf(wyx ue77u;ua/i truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 dc6av; zai5 sb1n95zk m/s. What is the magnitude of its momentuma5;zbk6 s vnciz 5d9a1?

  A ball of mass 0.10 kg is drop8 smml(.s m(hc/qsxlks66xs* ped from a height of 12 m. Its momentum when it strikes th/sssl sc6 m8.kqm (6xmsx* hl(e ground is

  Two identical 1500-kg cars are hbsnl g9c.6qr1 + ht2oq4zdv.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 z2qod6.h 9qgl shvb+tcr.n4 1is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30vadxf1ss 0l+ )99 ewlq m/s, strikes a wall and rebounds at 24 m/s. What is the change in thewdsq0+f91vl s)xeal 9 momentum of the ball?

  A 0.060-kg tennis ball, initiayvldkec7u6)y:p/+ 5e cqchu , (,v qqrn:k(dylly moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the oppos k75e:v,lc qyu:ep(+uc) h,kqqnd rvy ( y/cd6ite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) ioyeqy+55 qy+jc3q1s z s 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 pitchi qq y3ce +o1q5zyy+sj5ng machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkingdl*up0ut*bi c6j- jst hul, 78 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 hammer at a speed of 14 m/s away from the capsule. A8*t 7 d0puj-lt6 b*hcsil juu,t what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-onr1 md(opabz*j 3s3hj- (uv. rh 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 object's momentum change?ha rbj(pj z3r -1m3hv o(.*usd

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), ;zwnc,w;r /ymi/en 2.of5oxu u na4v5who is u4o,o5ecwfmz2v/a;/ w ;5rn. xynuinstanding still, with open arms. 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 right along a levd zy2(t84 7/lygpiv syel, straight road at a speed of 6.0 m/s. It collides directly with a stopped mots t vg/274y( 8ylzyipdorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling ak 7c0nqaz2 1qat 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars0k2zcq qna7a 1 after the collision?

  A railroad freight car, mass 15,000ky:q o(ng)73b zvrh*p kg, is allowed to coast along a level track at a speed of 2.0 mr3ybhg:7vop nz (*k q)/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, rolls with negligible frd f)/u9m*l agbiction on a horizontal track with a speed of 10 m/s. A 70-ul9)m/ gbd* afkg stunt man drops 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-kgxm1-u1z i(l-( why.qqu6d ejo log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, xwu yiz(-m1q -.(el 1uqj6dho with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increa9y.9 65shuajcn hvvvfy, l 88zses to 15 N and acts for one more second. What impulse was yy8shl 8u9 c5avvzh n,.fj6 v9imparted by these forces to the object?

  A constant 9.0-N net force act z at+qra:0q2q v:ez/tpvr.i* s for 2.0 s on a 6.0-kg object. What is the object's chan:aeq/.*zt 02: ipq rvrqav+ztge of velocity?

  A 2000-kg car, traveling to the rigdtux ej /n7 q,+b3s+kh0vita8ht at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average fobe s8j d v03++/7 knaixh,tutqrce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball baajb,/k c3yz qixp):horv.8ejwqi7 u k;v-q 02ck along the s.jvz)a qko; wvij:0-/ 82 7iqurbeypx3hcqk,ame 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 force the bat exerted?

  A 0.10-kg ball is dropped 9sz-h h u5(e hgq1ue(conto 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 magnitudeuuce 159ezhg h -q((hs 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 muzzok,*oq 4s j s:w1c(fdhle velocity of 750 m/s, at the rate of 300 rounds per minuteos f1, cwh:*joqks4(d . What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of 4z)xj8 yzp k3ka 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 stream needed, assuming the water doesn't pzj 48 )ykk3xzbounce back?

  Water runs out of a horizontal drainpipe at the rate ofagrs-l/r / 7ch 120 kg per minute. It fallsrhlc7s/r/ ga - 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kgh4m0qgl pwr**rdu k)ro6p a 9., achieves a velocity of 40 m/s after 3.0 s, when fired straight up. Wrprl g hu6 kw.mraq0** 4po9)dhat average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallyqcor/*gif g,tf- ev4/ at rest in outer space. They push each other apart. What is their separation ioc,f*4tqv //rg-gfe 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 i4f,eo3fkbliy /2 ilt,n a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total y ,ifo24f3b/ ,l tlikekinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direcrr*khe4 g 3mv-tion makes a head-on elastic collision with a 0.15 kg object initially at rest. What ir3 k-e*rvh mg4s the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired intc. pk(8lr2cdq h7t:1 :ku kew9xju5ajo a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with hak(x9pdal k w. c:1tq:7j 2hkrc5u u8jelf 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 aoz*szx0sm4h2lwz97 j,i o w+en alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-poojm+ z47z l9w sxz2i0 e*s,hwarticle 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 stateg*dkg :h2+z( xjn.iyionary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after t :i*xn2ydz+gj (gh. kehe collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/yd6js/lobx.h* 0n l+c s collides head-on withl*yscl/ 0oh 6xdj.n+b 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/so;agbq3a3o. n6ag tq2j:zy ;a. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what iz oo:.;32t;ny3aa qg j6a baqgs the speed of the masses after the collision?

  A 2.0-kg mass moving to the eapmfdzi o +; nedt;*95vst at a speed of 4.0 m/s collides head-on in a perfectly inelto9e;;i5pzf +md*nvd astic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travelira. (-ccy-kpy2ej9) v)ixk ke yzh; w0 -qbd-eng with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on -;y -k ipeq(-ycre2 whkdzv beaxk) -.j)cy09inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertij3j 0rk08muxmuw mrg7,* ;n rvcal direction buries itself in a 2.4-kg blocwr*7uj g8 m,nj 3rxmrk0; 0mvuk 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 km/h east collides with a 300.w lpr0a/q)yopulh)g;ezt0v8lb 8 s:0-kg car traveling at 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 08l) p/p0 8bveyqu;a.r lg hwtzos):lcollision?

  A 1500-kg car traveling at 90.0 kmgq)84xau m)ql d7hih3ea uq6+/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See h)a4h ldeq67+m au q3 iu8q)gxFig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves er moq.50m h0j -( 0pmq,tcuqtiast with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelast. q- 05cmp0joqq0tt(iumr,m hic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a ve+/ ok9zu kdrv811p 0ugeth z3klocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment movinpkr3ue/1o+u0vgkz z89 t1dk hg 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 origk:p3seco x wiv*k2er3; d ++fpin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on 3;fkvpi2xo:*r sw3k cp+de e +the x-axis?

  The center of mass of a two-particle system is at the origin. quth m3: -kku1 One particle is located at (3.0m3u 1u-q hktk: m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0)pryw ;r*r-*ss , 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0)p;s- rysw r**r. Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 mx)tj*uke*by r;lqy4p-r; m j8 4w ;vcb), and (2.0 m, -2.0 m), respectivelw b;crj;-*tueb;lvxj4r pqk 4) *y8ym y. What is the location of the center of mass of the system?

  A 3.0-kg mass is posit,l*+gysd( ml 41yj uftioned at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a *us 1yd+lmf,jyt(4l g 4.0-kg mass which will result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of ad d6psma:(ff r :f c)(2gw3ogbsy02ta whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 gafdmp:f)2(w sy23cats(0bof dg 6:rm tall.