What is the SI unit of momu *ek/jxu4dd;entum?

  When a cannon fires a cannonball, the cannon will recoil bas)l5 jf)3aau -c- wweackward because the

  A freight car moves alongbz:t)rvv 5wl2 a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to th vz5) vltw2rb:e velocity of the car?

  A child falls sideways off a sled while sledding on frictid/jx,4na +8 o(ggonuv x,;zhcon s5, tonless ice. What happens to the velocity of the sl 8zsv+oc(/ nx,ho ,x agodn 5u,n4tjg;ed?

  A rubber ball and a lump *v-9wmy f8a hmof 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 experiencevw 8*m 9mahf-ys the greater momentum change?

  A sailboat of mass m is moving with a moment/ tzl 3 uo:-e)+x3j92irb6uwge dntna um p. How would you represent its kinetic energy in terms of these two quantitiw :e)ldu /3 i6+b-j3etz u92nnxo grates?

  If you pitch a baseball with twice the kinetic energy you gave it in the prhfdn;qm)7d)zz)7 / tp6 hc5kmpz;so mevious pitch, the magp 7;zdmtk/5opq)7ch)m6zfhs ) d zn; mnitude of its momentum is

State Newton's seconw5k7vuz7lo o49+f3n crf0rd td law in terms of momentum.

State the law of conservatscey b;v(),q x cr.-f)mtg.e,lnk1m yion of momentum.

  The area under the curve o-mu2io w*3( ukcy hn.w 9qqtq9n a Force versus time (F vs. t) graph represents

  Which of the following is a jpd, i7l*;pcen accurate statement?

  A small car meshes with ay omagx*20e92ev l5hp large truck in a head-on collision. Which of the following statements concerning the magnitude ofe02 l ahvm pg*52oxy9e the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fr+5vidto0j +zvkwg p73y v 0s7zom 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 pwz3i 0jsv0kd+tvgo 5z+ y7v7impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m h: 5gro8*thz8. rucx9(mwmiw /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 experien .chztoxrm8h 5 ru*iw 9:w(8gmces the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other.k vuvea3 +rrk mv6wpj(,4k3b( Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-gqiibplg*a7d8s4 .f/ 9f gp1d kg ob4 /fdbqp.g f8g siia7p*d1l 9gject 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-on an 80-kg .9rtjia/x5x3 ci(ey ihalfback ruxy3e9 rajict5 i(./xinning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, thwnp) hn win643en which of the following statements is true aboutnhp)w64w3 nn i kinetic energy?

  When is kinetic energy conserf0car )izs 72bved?

  In a game of pool, the white cue ball hits the #d4bb kv. snm16/ hx1wyu/ g o,hdzq.kn93cyv -5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had o c nwdvb g3xnyu1zbk9mh ,y hq.1-6v/ /sd4ko.riginally. The type of collision is

  When a light beach ball rolling i* xxp /x;4smexgso .,with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's sxoxe;.*m4si xp/sx g, peed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the2 lmb6(g7zg8r3g vfhhtiqr;/x)4 vrs right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collir 6sz;g qbfxv72l 3t /r4v )g(h8mghrision 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 elastically with ;epd2k -rcsi vwsofru . 32xg3xa)t9.an identical ball at rest. What is the 3s rp2- odx92;)vw 3segx tik.c.afur speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very2nys5q ,yv3 ec light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed ocy,vsye 25n3q f the light object after the collision?

  A very light object moving with spemb+o-m srl.93 8irhczlv)n.hed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elasti+sbzhm9 l)olri hv8rn 3.c-m.c. 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 of0 ymtq+/2y3 m6rtckok equal mass moving with a velocity of -2.0 m/s. Wt tq2+3 ykr6yckmom/0hat is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides*ocv9- gbc ner 7ws:kyw46b4s head-on with a very light object moving with velocity -v. 6wbs rw7cnyc* eg:s 9bvo4-k4The 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 ohks )f:f ,5hfnn: 5yr6)p7qc*cuvd hjf the following )cnvfp ):juh nhrfy*dh5qc5sfk:6, 7 statements is true about kinetic energy?

  Two objects collide and stick together. Kinetic eq*7mtt)( e(sa ayr cm6nergy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect; djf ha q+t3 ;n21o:.xroxjrkly inelastic collision wo; +kqhf3 jr1rnj:x ;xo.2tadith 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 colliy7vp8qd,r upq rx7v,7des with a large object and sticks. Which object experiences the larger magnitude of momentum changev v,8, pqqryud x7p77r?

  In a game of pool, the white cue bk6 w gh:to-a53dgewa7 all 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 folpbm bcrk e8+ o,-vys75lowing statements is false?c+bkspmb5y7v-, o8 er

  Which of the following is a false statementd )jzn5 -gjsaa3u ch+l3t-m-p?

  Tightrope walkers walk with a long flexible rod in wm avu0qz3: e12 ojbzn fomn+.v/q8z,order to

  A plane, flying horizontally, releases a bomb :o.c dzcs2(zkkh(n* o, which explodes before hitting the ground. Neglecting air resistance, the c zc (*sd2zk:kc(.oonhenter of mass of the bomb fragments, just after the explosion

  Two cars collide head-o/7id :f4 w8 yz*qja9mbfr9llf/t) wud n on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true abt/8uw/ z9la*j d7ldy m 49ff:frwi)bqout the velocity of this system's center of mass?

State Newton's second law for a system of particle4lms1fd99 2m gjt j/lay) fug-s.

  What is the momentum of a 2000-kg trucmnv)umf1n7/ hu ;u no)6gdef1k traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/ b66bce0xly knzgqs/z+0 59bfs. What is the magnitude of its momentu y5+96 sb e n0lbzz6cgkb0fxq/m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum whpt8k;t6o -bh1l iuk m3en it strikes the ground iu k 3h8it;km6o lb1p-ts

  Two identical 1500-kg cars are mo t*;lzwi6hyz3 z :2uktving 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 itz; wuhz*:yt k26z3lis the total momentum of the system?

  A handball of mass 0.10 kg, travelinz(4g/ *xfgxibu7bdf ;g horizontally at 30 m/s, strikes a wall and rebounds xuf7(gbd/f*;4ixgz b at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially mom b/ g +d7nr6jbh9h*gtving at a speed 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 chabhm n79ht+d6/grg b*j nge in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is plac3uewovx9;5n y ed 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 pitching machine? (Assume neg nyw93xoe5vu; ligible friction.)

  A 70-kg astronaut is space-w n.v( 5tgb8cwe9noxek8fll( (alking 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. At what speed doest 9e(8e cfbk ((xlo.8wnnvl5g the astronaut move toward the capsule?

  A small object with momentum 5f9,afiidi u0 6 mql8x5.0 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. Wh,i56fui fxq0ai 9m8dlat is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mavn9 * a-dmv.y7 pqr.gszu -(yjss), who is standing still, with open arms. As you collide, while holding each other, .rvq gs7a 9m yynd(juz --v*p.with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight roate1 1wirit/( -qamq jfb3s68ud at a speed of 6.0 m/s. It collides direct-i jubt8m61s(f/ i qawrtq3e1ly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling atlg/gw uo2 dq+, 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 cars after thwd/ l2,qg +ouge collision?

  A railroad freight caipefl (a)c2p/ r, mass 15,000 kg, is allowed to coast along a level track at a speed of 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 p)2plc/ea if( of the two cars after coupling?

  A railroad car, of mass 200 kg,et -d u (4-ltkqidkw7, 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 cud (kd eq,- k-lit7t4war be moving after this happens?

  A 60-kg person walks on a 1 vsay4- utz:/ b0f0 qn:vfxfa;00-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect tofx ya/ -n0b:fv40u z;tavs fq: the shore?

  A 4.0-N force acts fougp z 7+84txno92 vjwlr 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impu 4 g2+89 twojupxvnlz7lse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 x4-u5kzf av c 1r6j3ohs on a 6.0-kg object. What is the object's c6zkav cho3xf-j5r1u 4hange of velocity?

  A 2000-kg car, traveling to f .km*q) kkj nr af*fv8*4kwb/the right at 30 m/s, collides with a brick wall and comes to restmqkwj kfkrf8a*)n *v/*4f b.k 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/s9p.vhjbm9zn3 ;z y4p y6d9 pob. You hit the ball back along the same path, andnp9db99pp4 ymz h z.vb36j;oy 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 onto a table top. The speedyt 9m+h ynf0ni.;fs c6s of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If cn0 9tny; y+6fm i.fhsthe 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 6 lfkn,jsthr 6j:2gt1yw 6 x6ukg, fires 50.0-gram bullets, with a muzzle velocity of n lju6r6k h661f ,y jtsxtw2g:750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on t 3*p3c7 35 s;knin.0* znxvxi *f;punweirgrshe door of a burning building in order to knock the door down. This requires a force of 1000 ;i zfr k0snp3*nn*r7igp3.cixxvn; uw*s5e 3N. 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 the rate of 120 kg per minute. Itjz2yl27 dx0hvcnk- e * falls 3.20 m to the ground. Assuming the water doesn't splash up, what average forcexv2eh 7-2kzn 0d lcjy* does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velodx3t x;4jxxm 3iw( b)acity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket e3ixx4b xt)j;a3wdx(m ngine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest mpi z25h8 tjb3in outer space. They push each other apart. What is their separation after the lighter a528jzpi tm bh3stronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a p54 asni hsz5j03*gkxk;jx 4dderfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collisio3dxg;n*4dss5k0jxk4zi5j a h n?

  A 0.10-kg object with a velocity of 0.20 m/s in 8+ s lu*ih(8 u u1u-jfdpedaq.the +x direction makes a head-on elastic collision with a 0.15 kg object initially at refu - .d ulispj*d+ 81a(he8uqust. 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. +bfqw+v isg /7d+p;h:2qv tvw The bullet fpvgs+vv +: it b+/2qdq;7whwemerges (the bullet does not get 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 struck head-on by an alpha-particle lx z31z8jvzb*c,(x ot(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(ol, 1 x3jxtzbz*zvc8 the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s c-q3 h, p6je*-p r blribyl(m,yollides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the spb*y,l( l3y pbj-me h6i,qrr -peed of each ball immediately after the collision?

A ball of mass 400 g moving towhu,y1:ayyqbf 2 7z (gdard the east with a speed of 3.70 m/s collides head-on with a 201(yudh2ag:,z fyqb y70 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 collides head-on with a 3.0 kg+l o+e zo1 ohcfo,w9v3 mass at rest. If the collision,9oo hf+ozvcwe+l o31 is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to th fnjhn;p(r y(6gn2rz.e east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stati2gypj. n; rhn(n frz6(onary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity +aw4 pq9hqn q-po/ tf3v, strikes a parked station wagon, who's mass is 2m. The bumpers lock tog qp3h4-t 9 +fwpn/qaqoether 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 buries itself 8; gjf( wb,3hc1qd+ifryq9qzin a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upiq 9( bfg, cfjd h8y;31rqqzw+ward.
(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 +qn0+oxx gjn,xe :fv zv1ywbc 1).la* at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick tln v1wc qzf n+ob*x:0, e1ga+)xvx .jyogether 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 eas ; kkyfcmfohm)zyy5)cb4 53+ cucsu;-t collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collim 5c)mc) c+;szouku5 4;bfkf y3c-hy ysion?

  Two objects move on a level frictionless sux p.r.k hwz9j8rface. Object A moves east with a momentum of 24 kgm/s. Object B moves north r k.wj x89phz.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 k2slf7+)d lxo3lf-4ozxz ;bdv g, is moving toward the North with a velocity of 4.0 m/s. It explodes into tf7o d x+) s2lol4;3xz lb-zfdvhree 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 10.0-kg mass psm 08w 2:u6c( ovkriksb xcbw4p(.*fsits at x = + 21.0 m. Where is u.kk8(* cpws2bbp m0r4ofvw 6i:( cxsthe center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle ifpsc;jv0/d+2a igrcvv ,- m7es located at (3.0 m, 0) and has a mass of 2.0 kg. Wpfsv;r+, -ja/vvc gde0c m7 i2hat is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg a3y k e/ sh3yk1)5svqbat (2.0, 0), and 3 e51b yqs3svk)ykah/ 4.0 kg 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 located at (0, 8d1ubtuum(nq8y ci .60), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectd 1u 8i8tuc ym.un(b6qively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and2uh.u2.9 ixsw -nn3axt ;wf mj a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass o.-2xxtwjnw3u 9; man2h u sf.if the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the positia q4x +0kfsd1yon of the CM of a whole leg including the foot when the leg is stretched straight outax0fy ds1+q 4k. Assume the person is 1.60 m tall.