What is the SI unit of momentum/e;e9 on(g;vjy-nw gr?

  When a cannon fires a cannonball, the cannon will recoil )g ;xhkc*3pj;xhy9wfbackward because the

  A freight car moves along a frictionless level railroad tm,uf -h1w8qtl j o72ojrack at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens toqo mhl 8f,wu-1 jt2j7o the velocity of the car?

  A child falls sideways off a sled w so8; ym b+ntz.8z o8j/kx-arjhile sledding on frictionless ice. What happtj+8oa- ;my/ j8konrs8 bx. zzens to the velocity of the sled?

  A rubber ball and a lump a yxjms1(r9. ipruy,:of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which ita.uryp1ix j smr:(y, 9 hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is mow3kn.b - 6iqf2auxp.rving with a momentum p. How would you represent its kinetic energyx qiau6f.b-p.k3 wr2 n in terms of these two quantities?

  If you pitch a baseball w7csejx8 r )sozq;5kc5ith twice the kinetic energy you gave it in the previous pitch, the magnitude of its mkscoe xz8s5 c;5jr)7q omentum is

State Newton's second law in tj ovgxy94 tngjzlu :ek 180z om3f*i6-erms of momentum.

State the law of conservation of momen-ar u ohttkqwc;6q.6 h9n,u0qa za( v)tum.

  The area under the curve on a Force versus time (F vs. t) gra4mpuvt urfc16l.8b*cph represents

  Which of the following i4g b29h w;q ,dxoef;rj- 4s;vfwdf7zls an accurate statement?

  A small car meshes with a large truck in a head-oeacf555va;h e n collision. Which of the following statementsa af;5h55cve e concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same h85bkm;jgc fj h w13bg(eight, and rebound off the floor. The red ball rebounds to a higher position. Wjm18; (gjf5gbbc 3whkhich ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at72 a8crfib jx+ r94teb a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling balitabj2+94r7xce 8f rb l moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide alab x 7tz5 qcr*5t:fv4nd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s53p9j/kikvb0 ( sdw vm,7vz :pcil -ku. It collides head-on with a 6.0-kg object moving to the lef u 9icl p75/w-k(kvsd:ki,vvz03 b pmjt at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles he8dbp6 sut n;*iad-on an 80-kg halfback runningi;td*u 8b6 psn
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentu (nmen0.l uy le :(ghjmu0-n8cm is conserved, then which of the following statements is true about kinetic e:e- .( ny0m(0nmhcuegn8 llju nergy?

  When is kinetic energy conserverk(kdzi42oh+ d?

  In a game of pool, the white c8s8 dko5 ygj6due ball hits the #5 ball and stops, while the #5 ball moves away5dy o68g8sj dk with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of ee -ag2ag6s5k 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approxim5 k e6ga-s2geaately,

  A golf ball traveling 3.0 m/s to thz dq2up;8tz)me7dp7oe right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elas8 zzpdep q2)o dmu7;7ttic, 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 elasticallaml) y e+ qf qy2js)u/+u5xnq6y with an identical ball at rest. What is the speed of jl2 /f6)+qqn5 eusy)y au+xmqthe initially stopped ball after the collision?

  A very heavy object moving with speedelk8gn fc6q+ uza9zy1*g ,l:o 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 g:nl+zau6, yz8c ge lq9* kfo1the speed of the light object after the collision?

  A very light object movip4r(2mpr10raxbtc ve)5,uqp9kd0 juw j*p0 hng with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of tv0eh51 b qpdr a0upm)4,9rxw2k(jjp*p0uc trhe heavy object after the collision is

  A red ball with a velocity of +wy8ipc0vj5 (zshsn* -1 eot(v3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. Whac1y(to5*8h -is vev( swpn zj0t is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on*m(r4 7vovtea /ovf z6 with a very light 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 object after the collisiozo ev7o 6rvt4v/fam( *n?

  In an inelastic collision, if the momentumge516w3e anw/q ,me zj is conserved, then which of the following statements is true about kinjnea5,3gq w6ezw1e/ m etic energy?

  Two objects collide and stick together. Kinetic enev,cr3vvo i5 .y( s2pxwrgy

  A 3.0-kg object moves to +90bk l+n0y.wyjt v)d hxa 8xmthe right at 4.0 m/s. It collides in a perfectly inelastic collision witj9txxdvh kam0w.b)0+8 +lnyy h 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 h.5clen4mb.jtfj6 8 xlarge object and sticks. Which object experiences the larger magnitude of momentum ch. htm.c6jnl e jb8x54fange?

  In a game of pool, the wrlomy:x 2 6)fuhite 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 folld- azbl;:2mryb/, o qvg 8uoh1owing statements is falsev/;go,m u bd:yb8q2a zlor 1h-?

  Which of the following is a false statemecum*64kn egv7 nt?

  Tightrope walkers walk with a long flexible rod ii 0xh )ip1uk;cn order to

  A plane, flying horizontally, releases a bomb, c :sg+prl.hvv ojeqs - g9p,8tze3p2 9which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion3o9.,rp tp2 gz:8 v+ce9qvehjpl- gss

  Two cars collide head-on on a level friction-free road. The collision wa3oh) zgws1ew4p:5va z; 1qmpbs completely inelastic and both cars quickly came to rest during zq 1;pg5 zw:3ahmo4) vw1psbethe collision. What is true about the velocity of this system's center of mass?

State Newton's second law 68rmwhc4g-bdncjadi. ,f/;/ r s,r xafor a system of particles.

  What is the momentum of a 2000-k;bp;nnl w hd04t 8xi0wg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving s nk0cx isw6rcc/y c+9pr 3m+c9outh at 20 m/s. What is the magnitude of its momentu9s+cp3wrcn ycmk0cir6c 9+ x/m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its hy/*;i w gj: 89hdayzymomentum when it strikya yz;8h9g *w/dh yji:es the ground is

  Two identical 1500-kg cars are moving perpendicular to ymrpc96-6hj0z p3 t eyv4(rhaeach other. One moves with a speed of 25 m/s due north and the other 9char64jy-63 hem 0p vpryz (tmoves 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/s, strikes a wall a tcd58o35fupt l9kg-u nd rebounds at 24 m/s. What is the chan5t53uot -dlu 89 kgpcfge in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed0:.) yxfzsyt;tpa/ff j 2z3m:nape /u of 12 m/s, is struck by a racket causing it to rebound in the oxauy2jzf/)taesp ; n.f3z :: f py/0tmpposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machintdfnjdu*u;u6gnt/+g z 1qziu jd-4.n( , da4te (excluding the baseball) is placed on a frozen pond. The ju- 1+zdi6;qd4tngun*g, t(t fdduj4z.au/ n 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 negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is 1 nofqt4osii3tb 2s+ im 4v4m: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 astronautbi34 1m42ss: +ti omi4fqtv no move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at resthm82 w,q6s)6qcyox g7;etyc0dmo(e 2phmc 7d. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is )mcmd76;2 chq(y7g8q2ocyp dso xm6,0htw eethe magnitude of the large object's momentum change?

  You (50-kg mass) skate on i+okra : glhpq)y1g7z3 ce at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off together?azphl g7rq:gy)3 k+o 1

  A car of mass 1000 kgz/v h:9/j/8.gfzuj p49 p/kbhsuek ir moves to the right along a level, straight road at a speed of 6.0 m/s. It collides direc/ikjefv9ukj ph :h9 sz8//.p4b /ruzg tly 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 inton5raj wk1 bw u(p3:m8f the rear of a stopped car that has a mass of 1500 kg and they stick together. Wb(:3wrk 1pmj8u f n5awhat is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, ):dfkwcs/k;(.vpa pn ep) 2o qis 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 of the two cars after coupling?)cw/ns v2. k :edppk p(;)oafq

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal5r0rr44t jxbd 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 car be m4db 4 rrx5rjt0oving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respect to .(qjnr;jv :/ frs4nvcthe log). With what speed does the log move, with respect to the shore? :rncsv/4q( ;j fjrn.v

  A 4.0-N force acts for 3.0 s on an obl +zdorc2u zs)a*3 m2sject. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forc2*d 3omaz2 srzlu cs+)es to the object?

  A constant 9.0-N netb88 z :qedrm-d( y dlef-4 08fh3r 7g.bshnvbq force acts for 2.0 s on a 6.0-kg object. What is the object's change of velocity0fe-l7ed(3 h d 8-qrg8szn bhvdbqfm yr4:b8.?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick h/gd5/pedul2 wall and comes to rest in 0.20 s. What is the av d/hgdpl2/5e uerage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along6zv(7pr f8m;nnq :uug the same path, and at the same speed. If the bat was in contact with the ball f6n(zgm ;pf7r vu8qnu :or 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 speede6h 00 yo u+io0be.cxes of the ball right before and right after hitting the table t0+ece6 x0uyooe.0i hbop 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-g/6li8bv b14 y.-dci wwto+mikram bullets, with a muzzle velocity of bd-6k.lct48 wii+m/biwo 1 vy750 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 the door w.0lgpk7f1t vof a burning building in order to knock the door down. This requir fltv17wgp k.0es 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 bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg ht6rcpk 1 7h9yper minute. It falls 3.20 m to the groundpr6k7h1ty9c h. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.1jlg1 cda)op ))xj tg6q,wqofs 82:h xv6)kjw:2 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does tlqqo6 x:okt6:1)jwxjd ah 2gcwj 8pgv)f,s ))he rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiacod8.b4x96v u(fycuwlly at rest in outer space. They push each other apart. What is their separation after the yw.649vf (odcuxubc8lighter astronaut has moved 12 m?

  A 3.0-kg object moves ty ( t8/ry ypsp9tw9le1o the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s.y pe81w/tt y(rpy99l s What is the total kinetic energy after the collision?

  A 0.10-kg object with*fac-l ia-/n7r(ggrf3- zw;5 p qk *ogno ibe- a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocit--/5r7- ck-i3oepoqg gfn az( ;fwbln*gi a *ry of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s 9z c6hr. qw5h mscth.8is fired into a 1.00-kg block at rest. The bullet emerges (the bullet d tcc8h 56h.m .9qhswzroes 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 s7f d1fc;p39 4wn lwqb;/lpqiwtruck head-on by an 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-particle have after the collision? (Assume the neutron's mass equals the proton's m n/;9 q1 w b3c;lidl7qfpwfw4pass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass vc8mt2rf d(u)nlo9 qg.-v5i l100 g. The collision is el9u v.q8 -2lrg)ndtiovcfl 5( mastic. 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.lh/3wa-.n21ri 4xw7/snxditep t c5r70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elath-x 3n51a 47x rrcw /dpei/n2lit. wsstic.
(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 h noj wv8p1rd.ih+iabw+t ) m:i1 eh/1eead-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the spei+:h+.d rv1ahebi w)/p ijot18 nwme 1ed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collid7uk8rurbw h.nz3miys-w 833t w1 xnk0 es head-on in a perfectly inelastic collision with a stationary 2.0-kg masnhku0k78.wwyb3 m- 8w zs3n 3xr1iturs. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parkc3uru2*olt 25yqe *poed station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in th 3*rc op2q5utuo2e* lyis collision?

A 15-g bullet traveling 213 m/s in a vertical direction buriesa wa+ 2cdnix2z456tgxcki/ - b itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically uiicn b 5x/a22zg6xt+wkcda -4pward.
(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 a nokck*gz07 93000-kg car traveling at 60.0 km/h n 7*ok 0cz9gkasouth. 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 with ah2asz j hhf8m3ue4;*i 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Figa2feu;mj3ih84 zh hs*. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Objec1mywi q+2 td,rpib-o0 6+ -srhpjgz:st A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They makgmis+-tprpy h+ q20bisdz- j r:61o,we a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward w rvej 3npi61,lkb 72kthe 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 8.0 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? (Neglect3l2k,7 61 njrbpwekv i air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits a+ bqxqa7bc4jg 9.y ng-t x = + 21.0 m. Where is the center of myn4qgca.-jx+qbb97g ass on the x-axis?

  The center of mass of a two-particle iw*9 lihzp-2 *ecybkle6r ;(isystem is at the origin. One particle is located at (3.0 m, 0) and has a mask9ehr*- py ilwlbz2; ic6ie (*s of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: cc*n(7se)ura yl 4s t2uy 40zg 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine thcay( 7tyz2l* s4u)e 4suncrg0e coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and )ext mvm oi+.vcn(0)-- hkqbz 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is thi vo+k-(bm0c) q ) ve-x.tnmzhe 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 poi: 45sr; hbfpf 0qi2svsitioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of fbhvi2 0q;fss4 ir:5p 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 a whole legcd.lv ujs * cl.fnn;h8y,b 6)t including the foot when the leg is stretched straight out. Assume the 8vfn)ll;nbs*.u ,.y6c jdh t cperson is 1.60 m tall.