What is the SI unit of momg0a h :6hcob w(n2px:bentum?

  When a cannon fires a cf73 mcj0ey h05-xtwufannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad tr;lxbt,/wt mtyo 2sd m+8a9 pja5yg*m3e;eq 9rack at constant speed. The car is open on top. A large load of coal is s5 8 ytxl,oasj a 3y*edmb9;2w tm/9qgprm+t;euddenly dumped into the car. What happens to the velocity of the car?

  A child falls sidewae5smu. q onn cuoqnqy ,60; ;+l2(mpyjys off a sled while sledding on frictionless ice. What happensn0q(l;emysuocq;jnm u. n 2y,p +o q56 to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are th hvnm *+,j5ohdrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hitoh *+5mjvh,dn. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent i)i5rulil see sq.5of g 4/eu+*ts kinetic g *5.oi uqsrs+f 5ue)4/elile energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave8mdp bl ,hfjh5 i niw-,f2e m6s)+p.rw it in the previous pitch, the m di2. 65h),hn bf+ rwmlefi8p mwp,sj-agnitude of its momentum is

State Newton's second law in terms of momez0:d5d2 kbyaq ntum.

State the law of conser. d pkp/nm1cj6c33mvovation of momentum.

  The area under the curvelozhl i/j m)4 .a1d.ft on a Force versus time (F vs. t) graph represents

  Which of the following is an accurat(ze-0*n13 1 kw vm hezn5mawtxe statement?

  A small car meshes with a large truca e.wjf,:mop, k in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is correc,,mepjw o:. fat?

  Two equal mass balls (one red and the other blue) are droppxh8j*)/bnnjd n*:c q ned from 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 impulse during i)jnhnxn8d** /qjb c: nts collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a statilq.)cf+gdef) 1r7h m gonary bowlhf+7f m q)cegg)rdl.1 ing 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 during the collision?

  Two objects collide and bounce off each other. Line,qok rg:l+1fdar momentum

  A 3.0-kg object moves to the right at 4.0 m/s. qnq3q4)1 vz mp It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s1mqq3 4 z)qnpv. Which statement is correct?

  A 100-kg football lins)k9 9kt om3fqs 9wj:xebacker moving at 2.0 m/s tackles head-on an 80-kg halfback ruokkjs msw)3q t 9:9f9xnning
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 folxguq5i+rq4m9x zqp) paa24p(cw(75 nn vz(bb lowing statements is true about kinetic enn+4wp(n x95 (cu25bzbpq4q)vm(7iq pzga r xaergy?

  When is kinetic energy conservpmrt9vt-tsvhf s0, 7qv-5 m:ped?

  In a game of pool, the white cue ball hits9re)gw r.zzo ;0zv s2t the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had orir.gt owv9z2z ; szer0)ginally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides wi.7z c qf9uf8 nmom4h1yth a heavy exercise ball at rest, the beach balm4of qm1zcn.uhy79 8 fl's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right c 4yh/ f4piwep*ly. yl5ollides in a head-on collision with 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 fhy4e y*y5.l4lpw/pi is

  A rubber ball with a speed of 5.0 m/s collides he+y kh.nwzy)y * k-fy;orwhg .)ad-on elastically with an identical ball at rest. What )h-+zgy rwyyw)*k;y.kn .ohfis the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a veri wg(g e9lcp)deelk a)22f7a :y light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light fgaw ()9g7 2aeike)2 e :dplclobject after the collision?

  A very light object moving with speed v collides head-on with a verm17spor9. dft9hfm1u y heavy object at rest, in a frictionless environment. The collision is almost tp m91d 7.um1for h9fsperfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collide4is sw,vavx-1s head-on with a yellow ball of equal mass moving with a velocity of -2.0svxsai-,v 1w 4 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 light 8x rpr183ac4/ s. l gq8njz:kr;shrtfobject moving with velocity -v. The collision is elastic, and there is nx1zkpgrrjlcsr8 : s 8aq3.r; /nft h84o 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 consel01k etvytfu 1jyq57+ rved, then which of the followit f lyu7e5+qt1y1vj0kng statements is true about kinetic energy?

  Two objects collide and stick together. Kinetic energyo5u bu)/ 78w6 cs(ltrc-omjk c

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly ini+bsw y ef jcg/p6ck970-zr 5telastick cs bc i5w9 7-tp+0/zjefgyr6 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 collideq40vkcg 8updp.2se 7zs with a large object and sticks. Which object experiences the larger .kvec7s 2p zq0pgu 84dmagnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and ic 95,+n4b5rn zp qle/ 7ktynqis 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 l5pd 1y7f.qi,cxju b8ac 5rd0 false? 1 q8rlibaufd, 5507cdc.xjyp

  Which of the following is atfk/los60z ew 7ztc* )lon2n( false statement?

  Tightrope walkers walk with a long,bjte8 2qpmoh/s0w -a flexible rod in order to

  A plane, flying horizontally, releasj 8o4zsshg i-x1+bhr2 es a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the b4 orh-j81 x2 shs+gzibomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road5n s8 b,ym pj)w1vt9+4 jnfbur. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true abou4 v8nwt+ bjb15,rjfnsu mpy9)t the velocity of this system's center of mass?

State Newton's second law for a system of particlb )qcbk6zw edfc4,dyh;7 m :5nes.

  What is the momentum of a 2000-kg tru n;j;8xo 0v4zjl /bg(pt5eznick traveling at 35 m/s?

  A 1200-kg ferryboat i*(s uvw(b dtvu w/,0zss moving south at 20 m/s. What is the magnitude of its momend bvw s0v*uzw(,st (/utum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when ( +do11 coiy nrvv(m-b/ j9osmit ss( booi dcmm+1( 91rj vvyo/n-trikes the ground is

  Two identical 1500-kg cars are movingaj auwzo2- /z6p m;l)r2 pvx:d 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 the total/z :d l- ojram;2axpv wp2z)6u momentum of the system?

  A handball of mass 0.10 kg,n 2 mf7ess/b7z traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the b n b7sfsz2e7/mall?

  A 0.060-kg tennis ball, initially moving at a speedklm:; sgp zt8c(sw0y/y-x 1vs of 12 m/s, is struck by a racket causing it to rebound 8 xl-s zg pcvkt;w/y:(1mss0yin the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basebalg; n *k9tzi2igl) is 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 i2*i; tkg zngi9s the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationarynwmuvjuv;z , :3lp(;q when the tether line breaks. As a means of returning3mj;: ;v( uzu,nlvq pw 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 move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object 8srv:,5*fmq n*n pphpk-nf,z k;6uo s at rest. The small object bounces straight b6n* ,p 5pfun:*v ,s-kzso ;hqknpfmr8ack with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on / e pzkldr(+nkjn.8r4ice 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 movee/r+8( d4 l.jkkznrn p off together?

  A car of mass 1000 kg moves to the right along a level, sbf.-/ l .*mej6waoxjctraight road at a speed of 6.0 m/s. It . -w*/cmx bf alj.joe6collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling1ojmkh0lguhm *mj 54 mbnf9 *w57kgj2 at 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 aj2gl0mfbj1w9k4 mn ghu** 57k oh j5mmfter the collision?

  A railroad freight car, mass 15,0- uz;6z-f(.9dxwozcpy+p4l;aeqh 6bwa s k f:00 kg, is allowed to coast along a level track at a speed of 2.0 m/s. q6f- oa laydwuef+s.9p- h;b;zc 4w( :xz kpz6 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 wit/ j-8a tcdu.afh negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt fa./ 8audt-j cman 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-kg log at the r.nl* a f/jmej. l +xj.8pa3dwecd 2d2xate of 0.80 m/s (with respect to the log). With what speed does the d*nje. j a2l/d ljmc328 .dpa+.w fxexlog move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly in.umr+x4 +05npyz0o jzjpgut (creases to 15 N and acts for one m juroj+n u4y5 m+0gxzp.zpt0(ore 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 ob:88ophg1x cdry ,o8ktl 1qg8 uject. What is the object's change of vel8yc ,r1:8o88h pgu glxotk1qdocity?

  A 2000-kg car, traveling to the right at 30 m/s, gn,rq*d b,swqf(5t,.s 7gvxb collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exertbd tvg7f *.5sr,,qws,( bqnxgs on the wall?

  A 2.0-kg softball is pitched t4lfp(arc/o4rx: xrm4jz1e, u7e zq o7o you at 20 m/s. You hit the ball back along the samer7o of xur 4xp4rzma qlj4:ce(,1z7/e 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 onto a table top. d2x/jplx8 , ax,cv0*hv yom,e 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 magnitude of the average force exerted oj,e,xxaly mvd p /hc*2 v0o,8xn the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bull1l,cgigpaa0 /m;i9os ets, with a muzzle velocity of 750 ma9o1i;, g0cs/ag lmi p/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 tr9r*lks;m i8d he door of a 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 minimim *r9;8 rdlksum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at s-cf..mrm+mrc 8l 4d6 nx7qgp the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what.6rcd- l msngf4 mrc+.78 mpqx 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, nw.a(lo x ))4yxry)fi when fired straight up. What average thrust fo4rlx)wax o ( y)yni.)frce does the rocket engine exert?

  Two astronauts, of masses 60 8 0ybjz8)xbyk kg and 80 kg, are initially at rest in outer space. They push each other apart8 xy)zy0b8kbj. 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.lk-hf,q n ff4(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. What il n(,fh-4 fqfks the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head-oe9pmc: xy qtfx*rp*oq 1s+c 38n elastic collisiopp+e9 ry3*s18 q*cqmox :tc fxn with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300rg1lt /u:+1fgpf,brj m/s is fired into a 1.00-kg block at rest. The bullet emerfgr: jtrpb +f1gu, 1/lges (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 reswar1 jr6p3po )gk:jq90gsm,ft, is struck 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 mass.9 oms gr 0gpf)p,:13jrk ajq6w)

  A 50-gram ball moving +10 m/s collides head-on wj3lhy;/zp wy0 ith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisi/0wzh l;jy 3ypon?

A ball of mass 400 g moving toward the east with a speed of 3.70wgajls ;ti 4f +h+-k,:lele(n m/s collides head-on with a 200 g ball sittit 4nj,a; lg-elf (w+sikeh+:lng 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 ofw a52wul/hl 5(mrc*rr 5.0 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 masses after the collir5r5l/mh uwlar 2c w*(sion?

  A 2.0-kg mass moving tei5bo; z,poidvz21qp6xw t ) :o the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost durin p i; e:bo25d)xozvwt1 ,pqiz6g this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station i1mdef 1oy-of9o) u: :cuk/ hiwagon, 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 this collision?uc 1hef9 udofyi/o-: 1im:ko )

A 15-g bullet traveling 213 m/s in a vertical0c i,wjgf)xq7 direction buries itself in a 2.4-kg block of w0jf,c qwgi)7 xood 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 3000-kg car traveling3 z/n0d1i m-noox1 yta at 60.0 km/h south. The two cars stick together/ 13xtzmanond -1i 0oy 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 winpd vw7 p4,ejy f;st49th 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 collisep4;y pw,4vsf dnt 7j9ion?

  Two objects move on a level frictionless surface. Obt zeac(vom;mf 3ha9-ue pr(4.wol2o)ject A moves 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 comf 3aou) eme(.lhrv-o za 9to2;pw (4cmbined momentum after the collision?

  A small bomb, of mass 10 kg, is 6tz7iwb,u5 s *ynl1jcmoving 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/syswtiuzb ,n 5jc *71l6; 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 sits at x = + 21.e,q1l 7zus o +.idk5nqkku -/ibcm --c0 m. Where1q .ose,c-bl/n-i +dmu kq-k5i c7 kuz is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is ldxs 4 s8c)ib(9-exus pzuik (5ocated at (3.0 m, 0) and has a mass of 2.0 kg ikxp 9(-)s5z4scd(e su xb8ui. What 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 at (2cgf20gy d):k 66 x/ohjx /nz2f)ltglg.0, 0), and 4.0 kg at (2.0, 1.0)y) gt/f2l n z)/gdo0k6fg2:hj c g6xxl. 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), (1tbwnw4a 8e) asub;b4 :f5qbr.xn3 7dr .0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the locati;e ) ndn7w fqr:sbw8xb4ta54 rubb3a.on of the center of mass of the system?

  A 3.0-kg mass is positioned e)a pn*nhmy19at (0, 8.0), and 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 ayhenp1)n 9*m of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM mw/g9gs j(npl,tckh ./)8yhzof a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tall8hpmzgwnts., / jk)(l9/ chg y.