What is the SI unit of momentxrwuzn5 h l btv*0 *whd13+cx1um?

  When a cannon fires a cannonball, the cannon will recoil backward becl 9e is h5dy bi(c:wv9:pjl5-rause the

  A freight car moves along a frictionless level railroad track at constanr5mt6:oxf u1pc4 iztb7 .a(fnt speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happeom5 t1t ( pnf f7ab.64czxrui:ns to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. jhj 6oye 71 t-mch:i2m fc:6xnhq3 8xj What happens to the velocity of the sledjh6qjyix 2neo7h: jtf c6c8 3 1m:-hmx?

  A rubber ball and a lump of putty have equal mass. They are m sbdt)ia /,ynlromk5,z86w up j/5(f thrown with equal speed against a wall. The ball bounces back with nearly the same speed wt(yja ds mkpro,w,8f6 55z mi/bln/)u ith which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m i*re ex e34,snvb)5 oiy6au3jc s moving with a momentum p. How would you represent its kinetic energy in terms of thejyun3s 63bor4),vei*a ex c5ese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave 48wmm;yd 3 2ppo ean5rit in the previous pitch, the magnitude ow;nm8d3pper 4 ym5o2a f its momentum is

State Newton's secondm( t47n a.hgka law in terms of momentum.

State the law of conservatio,uxq(u, frn:cm8 /oc s c)qs8qn of momentum.

  The area under the curve on a Force versus time (F vs. t) graph rep;kf s,3 7le-nohk9ugx resents

  Which of the following 1ni:djjgy0/n qn y4-)3ojt fyis an accurate statement?

  A small car meshes with a large truck in a head-on collision. :x9 sevsbo2xkz*;)2 nbz0rnh Which of the following statements concerning the magnitude of the average collision fokb :;*2rnvzh so09snxz be2 )xrce is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sametxult-km2 +:h(izn7 f height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with tkt:t-2 ifzxlu+nhm7( he floor?

  A Ping-Pong ball moving east at a speed o, .v nr 5,o:pdux3puwag5x /aw7os*u rf 4 m/s, collides with a stationary bowling ball. The Pingrpdu,rxspuoaugwn 7 53 /*vw: a5,o.x-Pong 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 eac 0h,0zj 5mfc),f gsequh other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides xr83opx ud dygi3c vb*g 1mt1j1)nz .2head-on with a 6.0-kg object moving to the l1t u3d13x* 2zrjvyxod .cg81)p bnimg eft 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 tl+bi mg18+m-ik ;dp9+ tksufhalfback run1if ++uk;8m9+-btmtsdkp li gning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if thevnl/h, x( sj,l momentum is conserved, then which of the following statemn/xj(l,lh vs ,ents is true about kinetic energy?

  When is kinetic energy 85k4h :fljdvg conserved?

  In a game of pool, the white cue ball hits ulzy27v mir:1u*vht,n :9eam e v;-ybthe #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The typetv :*rhb9e uy 1mzev:7; n2u,ami-yvl of collision is

  When a light beach ball rolling wit2dmu.;,m eb7 (2hr tzxk9kqpsh a speed of 6.0 m/s collides with a heavy exercisek 9 z(7ux,.sekhmm2dtb;2qpr ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision w1)difiwm,ie 3 ith a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is f1m)ei3i,idw

  A rubber ball with a speed of 5.0 m/s collides head-on elasticall t n+ t-(+5tzzfy97nf n,srxnyy with an identical ball at rest. What is the speed of the initialtzynr,fn(y + xtn5 f+7szt-n9ly stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with2mzutvj7s7n 6kjm2. 2 uwmx0w a very light object at rest. The collision is elastic, and there is notvm.mk wz7n0 mju6x22u j2 w7s 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 with a very h 6bmhilo6.0zg eavy object atm 6lizohg.b6 0 rest, in a frictionless environment. The collision 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 2o2qossm 0 1p+g8 oa;at(thhxcollides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s2ag ma xs2tos q10 (+ootph8;h. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velbj,itdsta9fkoi- k5 v- jj8dp4x22a:(zp f7socity v collides head-on with a very light object mod8vias-xz,-jot jk4f5s9t b ap 22pkj( f7di:ving 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 collision?

  In an inelastic collision, if the momentum is conserved, then which of theqyia i)4:p ;jknx r29c following statements is true about kineti9;2n:c ypxa4 )jirqk ic energy?

  Two objects collide and st/q sm-. c oc,u2dkmy;zick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly ine1-p)f wm f 1+yc0fnlx8 ycdud0 j8.mdylastic y fdfpyy)f8n +md-m81wu.c 1j lcd0x0collision 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 anrr)wdoa+yqu.* )zai1 ;a ,fawd sticks. Which object experiences the larger magnitude of m.i a)a uof r qwa;,+wrd1a)zy*omentum change?

  In a game of pool, the white e :lo ,pvr+kbmfbx7le,y.b:hplw 65uq4b4(lcue 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 thtmbf6.8;t2:schk b* kt4 pc ihe following statements is falsc8ht46t2: bti f *pckskhm. ;be?

  Which of the following iohl3yx)3,y 3r. *d gflsejxs,s a false statement?

  Tightrope walkers walk with ag,sae4 9h0 881jeiug 5pufyuqvfz 7l1g*jh:w long flexible rod in order to

  A plane, flying horizontallyt 0x* 1kl:nddt, releases a bomb, which explodes before hitting the grou*n0 xktd td:1lnd. Neglecting 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 was c9: )0 b aba69u eqju*8q zcqsgaswjeguz )b,39ompletely inelastic anqu6aauq)eusc)e b*j gq,3 g0bwa z9zjb:98 9sd both 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 for a system osf8tng* 5 4db3j4wqjsf particles.

  What is the momentum of isld* z + -lgtpp(/hj;a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat i wa xkf;+tqf0t:yn. ,hs moving south at 20 m/s. What is the magnitude of its mom n0h fwykqf: t+,.a;xtentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its my4dfj)408p;wsb2 s fpitnr 8d /b v)jdomentum when it strikes th4bp sdfr2jds8;) vpy4d/j8t )nfw bi 0e ground is

  Two identical 1500-kg cars are movinbf o)):yp +nkvg 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 is ty )f)pbv+n o:khe total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 3 1bg o+2)xudld yl3a5r0 m/s, strikes a wall and rebounds at 24 m/s. What is the chrd o5+b 2dlx)gla 31yuange in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is stqp / ,lvyac,o1ruck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in p avc1/ql,y,omomentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placke+ nolzi/23q 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 neli2zoq e/ +kn3gligible friction.)

  A 70-kg astronaut is spacaf:q8mh,,unnk 9fn i5 jr 5;rre-walking 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 fi,njh8u; k5nrr ,faqn m5:r9 space hammer at a speed of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-1uaoi3r.f9w30 oyn sw 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 object's momentum changw.w1s0u or y3i9ofa 3ne?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kgbov+ doa,a dl+ym(. u exo0-g+ mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off together?gyeu+o odalvm+b0a+- , ox d.(

  A car of mass 1000 kg moves to the right along a level, stra+fodra1gk3 -0hv/9re,g nsm zf nzn:4ight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is thefz rnh1:on9 fk,ged0 ranvs 4-+/3gzm total momentum after the collision?

  A 1000-kg car traveling at 25 zkeulwb1w7-q uc h5kx +t 75,cm/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 the collision?bw7ckq 1-hue xt5,kl5u+ 7 zcw

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lewg*d9 y zfo37jvel 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 9gj37fo*zdyw speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible fr5sz lj, g rzrj9-l;w7iiction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight95,7gjzzr; wsr-il jl 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-kg log at the rate of 0.80 m:dwa2h28h (jgqr, h mgsd*kg,/s (with respect to theh8 ,2a gqjs m:,r*kgwdhghd(2 log). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The forcevlu69m0.e/mhfv hv, c suddenly increases to 15 N and acm0,uh6fe hclm.v 9 vv/ts 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 object. What is the obje1 e(vpgilf b;-hym9u 8raj6a ;ct's change of1ep6h ;v rlaau(i9y ;-gbj f8m velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides withw2**szke;i 4yvh:3s u zhci+e a brick wall and comes to rest in 0.20 s. What is the* 23kc;ys vszhez ew* :4uhii+ average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball baok vlf4 hx1h e+cr 5lpt/128jjxc8 an.ck along the same path, and at the same speed. If the bat was in contact with the ball for v a4lhoj/1c 85c .thf lxxr8pej+k 2n10.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dr 7 nuq:ejn3g,mi+kh1y7 hhb3 30hsjw3hz u p7mopped onto 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, respuw 0k,e g7hhb37mims h3:j 7h 3+ zhnnjpuqy13ectively. 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 velo z +np7klh bteenu45wgs-)xd:gi)4 0riz62m u city of 750 m/xg4up:zw + ht0nem-d g2)4l6r) sb5ei7ku nzis, 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 of a burning building in order to knock the dn +v8q j-zgebn7,;x avoor down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the streazg8+ n,nqxv -j7ve;b am needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minubys.5qv/q.v mz dnyz hpt- z86;9fkjsw13*zfte. It falls 3.20 m to the ground. Assuming the water doesn't splash up, w9ypshyzf v1b5 -*m / ..3 qnsq8zjzk;ftwz6vdhat average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, ach 1 10 k7 2+tt0amrccghk2x rc1wmlyew-ieves a velocity of 40 m/s after 3.0 s, when fired straight up. What ave 1r7gl-mc k0202wt a y1+xccwkh tmr1erage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are inhi2m1 3ubg:0mq c eb4qf-5d waitially at rest in outer space. They pi :dq3bw02b -e uhcfq45a m1mgush each other apart. What is their separation 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 conapo 9s i zkrb(+o;;go i+964u1tf rhzllides in a perfectly elastic collision with a 6.0-kg o+fnh9 ;z ugbii+1p;ao4tk rr9zo6(osbject 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 velocity of 0.20j58mpyw-gkd:v1)a8 0zyjo b t m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. vkzmtj8-)j05 py1yog:b dw 8a 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 bloloijbgpt*f,-,(qhi5 0 v bwi8 ck at rest. The bullet emerges (the bullet* w,iq-,gvlboh 5i 08 bf(pitj 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 heads0cp16y* d mc0l0frt g-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 n0*c d6grly0m0csp1t f eutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of l5j0 do pe m,,x,nz/gdmass 100 g. The collision is eldl,5g /n,d0om,zjpe x astic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moviacj/i4(4dts35a;ygjc cqzl )uvs(e *ng toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasticsg cv*sl;(q4d5)/ a(z uc3j tacie 4jy.
(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 5.0wtkh ),5s1 qanfn2lx 2 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the massesq, 2)fnax kw521hslnt after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in1kar4qe:1f*nd xb,shdk + ; qp a perfectly inelastic collision with a stationary 2.0-kg 1xenfd,*a sqbrp+:4kk q;hd 1mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, stg qft 8yivyt6j a*)i,y8(sn)irikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of they6n gj 8q*s)iy(it viyft8 )a, initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical directi+e w5)94ixnt avke ;wvon buries itself in a 2.4-kg block of wood a rest directly above it. As a resaewt4v;9 ex)wkn i5 +vult, 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 g; .orae; hzs;/oi/gg(l to-t90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the col. a(s -g troz;//o;ehg;toglilision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h e,c7.-2sfvuj4cy /ahl j3bskvz:7n kcast collides with a 3000-kg car traveling at 60.0 km/h sou ssycajz72f-7 b,uhvk nv3/.4cl:jkcth. The two cars stick together 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 mo+8m w (ln-mvm jhtl.,uves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their m-m u(n w.lt+j,v8hlmcombined momentum after the collision?

  A small bomb, of mass . ;;4 rtk*cfqpv9tbo+l. yezk 10 kg, is moving toward the 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 velocie9ykqv* 4pbf t+.ol r;kz;ct.ty of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 2adlfh((3eh +4 a;8 7we1dwniwmret1 c1.0 m. Where is the center(1 ;a7wwilf3 1 ach4r endmhewdt8(+e of mass on the x-axis?

  The center of mass of a two-particle zn4qqjf o(lq 56:iif.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 secoif(.q6 fq ozq lj5:ni4nd mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0,rwjmpna vho j16ah/)* lt t.s:p,jy44 0), and n l a*)4ptjr1 4vysj p jh,a6owmht.:/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, 0), (1.0ibac7v;,) snph4zs, jrja( * y m, 1.0 m), and (2.0 m, -2.0 m), respectively. Wha s,;)v,b *n7spiar hjaz(jcy4t is the location of the center of mass of the system?

  A 3.0-kg mass is positioned ath1z;b0x fj+-fb i+d eam; ,cyv (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What evmxh;;-+cj d, ab zff1+0byi are the coordinates of a 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 omv mm h4p/rr.5f the CM of a whole leg including the foot when the rpm.m/4rv hm5 leg is stretched straight out. Assume the person is 1.60 m tall.