What is the SI unit of momentuaa4px(h1l96- mfk7 vlbtae6 f m?

  When a cannon fires a cannonbal tz1xh,q4;8.hfgx lyfl, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad trar;c8-essko.+ nll+zvamt m, 5ck at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car.e,8r-+mnam 5ov+ks;tszlc.l What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless icep jhvll*9 g);n. What happens to the velocity of the s*lnpj;vl )9 hgled?

  A rubber ball and a lump of10 e4jbvj(kjozsjk 6;uu hrb5o m4-z 5 putty have equal mass. They are thrown with equal speed against a w;uj0mu zj4 ojre4j-6kksb zb5h1o 5( vall. The ball bounces back with nearly 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 momentum p. How would you represent its k:tmxf. ,l0z dy1,i krtinz. ,1tm:i,lkxry0tdf etic energy in terms of these two quantities?

  If you pitch a baseball with twice the0g;21dz0c ,obkrvlr j kinetic energy you gave it in the previous pitch, the magnizl,br; g1r j 0v0dok2ctude of its momentum is

State Newton's second ls)ezuv d1fjq2n03 mt :aw in terms of momentum.

State the law of conservfhe,p9w0 t bs,ation of momentum.

  The area under the curve on a Force versu4pp t8dyx.4)9h uy vjms time (F vs. t) graph represents

  Which of the followi5s *dq 9 x62.nlculxbzng is an accurate statement?

  A small car meshes with a large truc+uz5l+bzv) ,j uz(k dvk in a head-on collision. Which of the follo+d+)(z u vzuk, bjzvl5wing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls kwg5; pk+tfxir (f95adaa9()haya /ik ;xa/j(one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher posi/jrw9( y5akx (fa ;iakf+ih/p g xtak;95a) dation. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, pivrg:0 7ydu0 collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the v7p u:d0 0igryeast. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide fg m yvo9g7*hq)znj o7-yb 7+oand bounce off each other. Linear momentum

  A 3.0-kg object moves to the right atg54 c4a uyu4iap)c(r p 4.0 m/s. It collides head-on with a 6.0-kg object moviu4)pyag4 i(urc54a pc ng 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 h3;nhuzz d3: t8lnjld.iwoe.9alfback running .9hwt: dnl3e; z.8unijd 3loz
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conse(x++qaj; dsk yrved, then which of the following ydkqj sxa(++; statements is true about kinetic energy?

  When is kinetic energy conservbbk3dt+qz))mh6 dd b0 ed?

  In a game of pool, the white cue ball hits the #5 ball and stops, wl4t .f4udbll iccr uvw)755.xhile the #5 ball moves away with the same velocity as the cue .l l4t7.ib 5v rdu ucf)5lc4xwball had originally. The type of collision is

  When a light beach ball rolling with a sp* a e;fdfwm/e; 4d:jskeed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed afte4 ef; d; fdj*kwema:/sr the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on colkr q1cgkye 5)1gzoe *:lision 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 yg* :e )oq1gzrc1e kk5the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with ervr9sw )8o-qan identical ball at rest. What is the speed of the initial)9qw-ros8rv e ly stopped ball after the collision?

  A very heavy object moving with speed v collides he ziwk) e /-9s9 k*n/2pewqbi0sqd,z obad-on with a very light object at rest. The collision is elastic, and thzqe /nq ibwkdz9ew p* o)-,k/ibss2 90ere is no 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 c u::ktnq 6:v..gt nsjwith a very heavy object at rest, in a frictionless environment. The collision is almost q.6vg:stuknct :n.:j perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocq8x n+.)nrof:tent+v7* cv eyity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the colli * tr ne:tfyv7+xecn) 8n+q.vosion?

  A very heavy object meb buzsg1fo*e,t4u c 7,bi:8 doving with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there ib,:ei c81szeug 7ftd,ubo*b4s 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 coaiuq/:)z fff df,fi 0c mi)dp9 t8l9k7nserved, then which of the following statements is true af:liit890f/k9f uqdfz)pdic m 7af, )bout kinetic energy?

  Two objects collide and stick together. Kineu ebkfusm e:8mf3;;i; tic energy

  A 3.0-kg object moves to the right at 4.0 m/s. u/.+,r(ykbynnk95p;z gsv ly It collides in a perfectly inelastic colpyzng b,9y n.s(5v/;k luy +rklision 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 obje1(zk/egbm.69 t,ss g uxd+nmc ct and sticks. Which object experiences the larger magnitude of mome mmxb1s9k6(e z, s g+/tdcn.ugntum change?

  In a game of pool, the white cue ball hits the #9 ball t.o.+ej peqozn5ebw0 62x: rx 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,,n cvra/t w*q zj28xf1i97m6 fklotw. Which of the following statements is falsxf*1r ,9n,jm/lo kf 8it 6 wzct7qawv2e?

  Which of the following is a6- yhi7-lp1qek q q(pd false statement?

  Tightrope walkers walk with a long flr(p ujs0t* j5gexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting thex. pkfw 7g(kq- ground. Neglecting air resistance, the center of mass of the bomb fragments, just f-.w p7k gx(qkafter the explosion

  Two cars collide head-on on a level friction-free road. The c4do9u 1xwjnsp 4fe4c(ollision was completely inelastic andf1n( u e44 dx4psc9jwo 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 of particy+ v r6a* ;/g( jb4wgnu:kxx)cxm, sozles.

  What is the momentum of a 2000-kg/bi:ytx :2opb truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving so tipai;a ix9+:j6j uc)idiv.4uth at 20 m/s. What is the magnitude of its momentum?u6+i icda)4pvj ia9jx :;ii .t

  A ball of mass 0.10 kg is dropped f6 ce71 kikv7ogb rhx(hko03y.,nn3 qkrom a height of 12 m. Its momentum when it strikes the ground isg7 6bk(rhyqkiv kco nnx 7h0 eko.3,13

  Two identical 1500-kg cars are moving perpendi*5ybwt h7xpqyys7s,b;7+-ctqzo 4 tqcular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/sq t+7y7z5qo*tbssqy hcx-4bw, ;7pyt 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 an1njt y,5outh4 +wtg: a q1b5uzd rebounds at 24 m/s. What is the change u,1at : 1yu5th+tjngq5w4 zbo in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving a*4t sj z5(mg3huv-rdam8 5 jant a speed of 12 m/s, is struck by a racket causing it to rebound i*u z3n(tdaja5h vsj-4 5mg8mrn 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 baseball) is placed on a frozen pond. Thu h61 1ldwhsk;i/n3*al zwc qe6,fv+oe machine fires a 0.40-kg baseball with a speed of 3 dq os3eiacw6 1 wf v+l,6nhhk/uz;*1l5 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 f)3oq wvlze 9y9,r +dbstationary 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 ,9+ drzyqve9w flo)3b 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/i2qbrjjt2ntb5 .b*/ d s approaches head-on a large object at rest. The small obj*rqj.5 b b/22tnidjbt ect bounces straight back 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 ri:ys.azk5 fp-a.tge td 91q:4oefm8 ice 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 mmas :y81d9git ekp.tze 5a-f q: o4rf.ove off together?

  A car of mass 1000 k j 88d(psxjox t .*q6ks5zi5vag moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collisj8i.8pxtd q ja* (55skvxs o6zion?

  A 1000-kg car traveling at 2f0swf* mj)rr-gtw4 e5 5 m/s runs into the rear of a stopped car that has a mass of 1500 kr 5-re wmjff4w)s0gt* g and they stick together. What is the speed of the cars after the collision?

  A railroad freight car n jhtfyj2;j4am9a8:u, 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 w829:j; tha yuf4j nmjaith brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligc 85c rgcmly-u -jhkm*)qrxl h7u*4y8ible 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 car be moving after this ha7h 8myuq**8)r4ll- c uc-xhcg5y mrj kppens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respect to wo.w-1;9+8iurxwyh d8me m h2brj 0de the log). With what speed does ; 98dmh.e0ud hmw1 8+ ywrwbj2x -eorithe log move, with respect to the shore?

  A 4.0-N force acts for 3n:m/p54 icryn.0 s on an object. The force suddenly increases to 15 N and acts for one more second.p /5y:i cnmnr4 What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2l jn)e)5+p.nc /5vz yff-i9nhlufzj9.0 s on a 6.0-kg object. What is the object's c+)ny5fcfzl-f 9 5) 9pjve.iu/z jnhn lhange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick9o7o,5 sk el+zmuayh: wall and comes to rest in 0.20 s. What is the :alh +, mke7sy 59ozuoaverage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Youb:p 4tfl8g akf,om37 q hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the l48 ,fam7: b3tgpqokfmagnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The c7z fb*b vq y6 lnw.k,kd9lv nxo,l772speeds of the ball right before and right after hitting the table top are 5.0 m/s anyl b,v9l df*n.z 2v kkl bxoc,7q7wn76d 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-gram bullets, with a muzzle veloci 2)kd sevt6(vcbx+ s:a)e 7phfty of 75vs:k+a(p62 shvetbe)) c7 df x0 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 of a burning building in order to knock the :en* :uqwct *wdoor down. This requires a force of 1000t: eu* wcwq:*n 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 k c3n69n(dolt6e:(d w c hi8mrtg per minute. It fd:(om 9i nc3twec(hn d r86l6talls 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 0.12z bjvw,c:s/f0 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the b/c :,vwz0sfjrocket engine exert?

  Two astronauts, of masses 60 kg andgqrgto8:- gl b j4q,(v 80 kg, are initially at rest in outer space. They push8gb:govr4 q,jq glt(- 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(fz *q3rur8kxnbh7h6 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.86r*x37 h(fburzqnhk0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makf:l5r/*-owrje 5i vbparw/m *es a head-on elastic collismj/*w/i5 folr*b:raevw p5 r -ion 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 dy3j:u p6w+1tqh9m 7 rlqhi d(300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet do m7rhu+( jtlq 3pq6yhidw:1d9es 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 h/g rxk a5,)v5 qpxnry(ead-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 con, 5xy5kxgaq( /rrv) pllision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball o/u, q lcubjlid9cpq+) 5kr: f9f mass 100 g. The collision is elastic. What is the speed of each ball immediateluf)9ll: u qpkidrc+c9 j/bq5,y after the collision?

A ball of mass 400 g moving toward the eoh4y+f xpcc;auh k913ast with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The 1x;p4uh3 cachyf9k o+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 *5tnk1a w:bt ld.tob8speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collisionw:tt5t1ak * dbo.b l8n is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east h/ *2r)tr(*ggsy(g 553iyd ja.l qkekaa pd7k 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 during this c*g/hal )5atky3rdrgk*kaqsdi g.57(e (p2 y j ollision?

  A car of mass m, traveling with a velocity v, strikes a parked stationl/ +:izgn/b49sn gd)p-pwb eb wagon, who's mass is 2m. The bumpers lock together in this head-on inelastes-:z+b/p4 gbpn l/dbnig9) w ic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 21d sfw+e h4/.kd3 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullete/+ wdhf4dks ./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 c69yqb9jmnden42 wz1 esbf7 ;oar traveling at 60.0 km/h south. The two cars stick w17e9ynsdomzfen j6bb2 94q;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 9q5czv 09bz vwel77u.c ,3kzehxk:kh 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 z0zk uch7 b.q3:ekxv9vewh ,c579zl kthe cars after collision?

  Two objects move on a level frictionless surface. Object A mofydt1t jbk 93kh, cad-+sos w3a39-muves 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 combined momentum after the collisiobwfjk--d3aya3 9 tt d9ku s1,hm +c3son?

  A small bomb, of mass 10 kg, is moving toward the North with a 6/+ g/ vwb8az3hpcg)7 ih9hqx/npr myvelocity 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 bxi96/mnh /gaqv7hc+3p)pw8zhy /rg 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 rk6wnlhj+7+ f mass sits at x = + 21.0 m. Where i jkh6++ nrl7wfs the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One para 3m8d(gspuj3ytk ;q 1ticle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of k stqa1m( duj38g;p3ythe second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), ar( 7e snz8/b)k8 has;by4 j.y)fvi tkynd 4.0 kg at (2.0, 1.0). D)t/47kaz fvbsh.k yeji;(8 y s)yrn b8etermine 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 qc3co q- 7jc1 :aegc;mm), and (2.0 m, -2.0 m), respectively. W1mg o:j-cq7qc ;3ceac hat is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1. c l2w/.,bgh:ljmk3n s0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will rel/sh 2,w.k cgjl3nmb: sult in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate thejysaosc25nh y :,-6nh position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume th s,5n6h-n yy:jcs2haoe person is 1.60 m tall.