What is the SI unit of momentujt4fgp5 /idxr3j+ / krm?

  When a cannon fires a cannonball, the cannon will recoi26vu 6s0g*jhu:ep4ngzrj iv6 l backward because the

  A freight car moves along a frictionless level railroad track at cons .2a6jdi)yglb brkp-0 tant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocitbg.p)ya ri2dlbj k60-y of the car?

  A child falls sideways off a sled while sledding onsxukh wti52) 9j28hr d frictionless ice. What happens to the velocity of js) hd2uhrxki2w 859t the sled?

  A rubber ball and a w t6wuspt/9js7s/zj17o hgm; lump 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 it hit. 9w sh t1wjuj; t6ssz/m/pog77 The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving ea yc; aw;uh5 n/a6lb 02pbe4tfs y0i-with a momentum p. How would you represent its kinetic energy in terms of these two quant2;iespca -unltwa40y0e bfy;5h6a/b ities?

  If you pitch a baseball with twice thcn 89 dis2svis67o,htx vgeq4 - -whg4e kinetic energy you gave it in the previous pi-g9soi,42t4wih8gh dvev6s -7s cnxq tch, the magnitude of its momentum is

State Newton's second law in termsn)r 8qi /gy7fpug: /ei of momentum.

State the law of conservation 6y3iafuzeea0fz js :k,4p+(*vgye w 6of momentum.

  The area under the curve on a Force versus twqnls l9p3 /foi0l )5zime (F vs. t) graph represents

  Which of the following is an accuratkvgp)99v*2o j*m uaizqkmp8mpq.d/ 3 e statement?

  A small car meshes with a large truck in a head-on collisionhtkuq3/u00f5njuut . . Which of the following statements ct00t5hnju uf quuk. /3oncerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped frab*o st ien6z0;ah06vom the same height, and rebound off the floor. The red ball rebounds to a higher position. Whicz0i6hv6t;*abns 0e oa h 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, collides with a stationabiq* :9ts( evury bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experienuev:( stib9q* ces the greater magnitude impulse during the collision?

  Two objects collide and bou v5ph4 x*5mloa6jipu)nce off each other. Linear momentum

  A 3.0-kg object moves to the ri3 k6,c k qyb:rs0uleo2ght at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correct?2bkc eqrk3y:uls 6,0 o

  A 100-kg football linebacker moving at 2.0 m/s tackles hn scmoq: wo 411r/57t1 ks60byjy uwgjead-on an 80-kg halfback runningy5 y c076uj n:s kb11to 1qo4/jgwmswr
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, vd;ren9 ah*8yif the momentum is conserved, then which of the following statements is true abvr a9y8d*n;heout kinetic energy?

  When is kinetic energy* xfbfug+c.y43o m4uu conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 n-5 yoxcyd :shsd //i9c:lgt0ball moves away with the same velocity as the cue lt inso hdgxy0 5y9c-c/d /:s:ball had originally. The type of collision is

  When a light beach ball xoknhmv;/)b:o ajrnw;dyq/ t / 91k6d-pfwn5 rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, theoovj-naf/ ntk)wk56/dqm9n 1xh/ r: p;dw ;by 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 collal--kx1a r4nuision 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 collkx-a 1-uarnl 4ision is

  A rubber ball with a speed oybmm(f;)ghfk(0nk0y z+f z9 r f 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped b+ (0mzy k)0g9yrhz;mfb nff( kall after the collision?

  A very heavy object moving with speed v collides head-on with a very l(7 +gwt5ogiwi t2s(ac 4jv/ zzight 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 object after the collisionvi( j7goa5zg4wt+ 2 wicz/ts(?

  A very light object moving with speed vtauq upd pjsu( cg0i4/p/r8/ 3 collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of u3ug /p8pt4c/ i/aq0d(jsurp the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on w,6 utvqz, of2gith a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of th2gvo6z,f t,u qe yellow ball after the collision?

  A very heavy object moving whzpuk,gt8u*(k o 1tg +uj6(s mith velocity v collides head-on with a very light ob+t8pkh6u ktg( m*guzsou1,j (ject 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 collision?

  In an inelastic collisiocbz m d:oi(7uab+s 2 :e-(aivon, if the momentum is conserved, then which of the following statements is true about kinetic eneb +-da mob(iiz:v7 2ouec(:asrgy?

  Two objects collide and stick together. Kinnr i (ybaf+ xmr(0qmya8a ,.m.(.x xdretic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It coll mmgr3 vo: .icf+6 *k+afny 0uv 95jy1ajxfr,gides in a perfectly inelastic collision with 9*1,n+k f6my.x ga3ijoy + agfm rf jvu:r50cva
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 w sa9jqes (0:e5bn8tsa ith a large object and sticks. Which object experiences the larger magnitudj(enbs9ast:8 e50 qas e of momentum change?

  In a game of pool, the white cue ball hits the #m9m/l-gm03irn u,vd10xlply 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 following statements d+j3 kg- qmb:xis falsg :+m x3dqjkb-e?

  Which of the followinmsb653gu 8;oaekb c9jg is a false statement?

  Tightrope walkers walk with a long flexible rod in order0yukxx96,: lufz nxfes/6 (jw to

  A plane, flying horizontally, releases a bomb, which explodes before hittinb0) atpd*y.oxg the grou0d )oxp .atb*ynd. 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 collisip d8s/lpsx2x4*j.imxon was completely inelastic and both cars quickj 2xm. /x*ix4slpspd 8ly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law fo.r kvef79g bbt+ao/q*r a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 mf: cxmv0k fn.:.tyc8n/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Wha+qc4yu2iu2 lkcx6 8sovjo)* zt is the magnitude of its momentumcvzcu l2 uji2*)8xk6oyoqs+ 4?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its8 hu*y xbs:)b6kh-o pg momentum when it strikesb hub8)pokh:g y6-x*s the ground is

  Two identical 1500-kg yp9g 7;lbsecj ,e2,it cars are moving 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 momentum of the syyebjp sl 7, gice,;29tstem?

  A handball of mass 0.10 kg, travelinraacc/ rk tbe/583c5c g horizontally at 30 m/s, strikes a wall and rebounds at 24 m/sect8 3cca r 5k/ca5r/b. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball,s ; l+nw9szkz(unw6 4b initially moving 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. W6w+szuln4 ;9 wbknsz (hat is the change in momentum of the ball?

  A 50-kg pitching machine (excluding ifr-b50 g/kkn i *l8iothe baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal dire-gk if*o8 i0 i5krbln/ction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spaceo5v (e skj 1g22g9cdnz capsule and is stationary when the tether line breaks. As a means of returning to the ca gjn ozk2e15sv(9g2c dpsule 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 at j1,1cfeej +qkomuh;. rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large objejjq k+ocf ;.uem,1 e1hct's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to grh:. +qbuqn:8uhpy 8o teet your friend (40-kg mass), who is standing still, with open arms. As +h:8q uynh8q ot .:pbuyou collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along v w.;lief 1tz7a level, straight road at a speed of 6.0 m/s. It coll71 fie.tlz; wvides directly 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 into the rea8 a1 x.gu1tteehk/6 dtr of a stopped car that has a mass of 1500 kg and they stick together.1 8t kee x1gt/ha6ud.t What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed top t *p.qv92npj coast along a level track at a speed of 2.0 m/s. It collides and couplp p*q9.p2nv jtes 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 with negligible friction on a horizontal t+se zfudft*59ys 9 / , zx 25srrf6sbd/at7vdvrack 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 he s v 7z,ds92uz/a9+bds/ sf*d5tft 6rf5x rvyappens?

  A 60-kg person walks on a 100-kg log at the r.z w+pgv 7z5exate of 0.80 m/s (with respect to the log). Witezgzp+ .w7vx5 h what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. 8mkd2y0jcga yr19 p+eThe force suddenly increases to 15 N and a 1g9j0pyky rem8ca2+ dcts 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 ylr - 1us;4w1j(eghyeis the object's changeju-(swl1y1 4erh; eyg of velocity?

  A 2000-kg car, traveling to the right a 84d0bb) r1jauzg5zqkt 30 m/s, collides with a brick wall and comes to rest in 0.20 s. Wkq4rj0 bg8z 1bza )d5uhat is the 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 backkwz qqmm(m4pd hy g54 (oy4oh1-xi7z8 5x y0ch along the s7qy14y y(( z oho-gk4hwz xpqm8 54xmc05imd hame 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. 8xon x9:wv0hsvfn8l2 The speeds of the ball right before and right f 2olhx8nvxwv89s0n: 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 on the ball by the table top?

  A machine gun, of mare th51 9dyoi89ch9. qxrmdk, ss 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average forrdqhx 5oh98 rtdc 199myeik., ce exerted on the machine gun mount?

  A fire hose is turned on the door of a burnindq wf(ts -w9b 3eq9f xj4*tyr7g 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 minimum velocity of the stream needed, assuming thb39sw( 7qtt x*y-qf 9efwr j4de water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate xmf3 (6j 1sr nufx6;kdof 120 kg per minute. It falls 3.20 m to the grouj dk;n3 x (66rusmxff1nd. Assuming the water doesn't splash up, what 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,l;us tei)yq1o2slq)p 7yh;oi y *5xc; when fired straight up. What average thrust force does the ll;5; h)*oi e 1 qtsqyo7is yc2)xyup;rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer sp c iwqtef;y)f7l+*4bwace. They push each other apart. What is their 7i*f b+)wt4;qlc yfewseparation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.ee/ao2wgx-v n(y-y2t 0 m/s. It collides in a perfectly elast gy2( ewyo v-ext/-a2nic collision with a 6.0-kg object 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 hxk1qqr;ff ixb(0gjw2dt9 .q 792wp sof 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 velocitb s fhf9qwi2w(0 xjk xt;g 91.qr72dqpy of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 mjr84nx my,* dbz,/vfvr6* y mq/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in tmb*f vq4z*6rxmr ,y8 j,vny/dhe 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 struk ;:9qvbr bn-f;olbu/ck 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 nb q;l o: b/-knv9bufr;eutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on4mf1lk-d ,.luw5jtr/-tif(bz ( eymsk8l6 d c with a stationary ball of mass 100 g. The collision is elastic. What is the sp u,d8m ckmyfbdfwj(-5l6.1-s tkti4l/ zl (reeed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speedpy+os b 6-vm vuqf/d65 of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisi+sp5b 6 vm/ufoq-6vydon 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 wa1i0 hb;n t(duq .+4tmhj5 tpn.di. rof 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 massern.jd.ab +d0 .i(t41wnmhi h; putt5qs after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collidz9n-u +z0 m idz4ky1czes head-on in a perfectly inelastic collision wi+yz0zm nu 4dzk9z1-cith a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strik f7 e ,5mimru3qkt3lo-es a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. W5i3 qke 3f7umrl -,mtohat 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 in a 2.a mp,3r*p:s/b hsj rhddfe 36g7 dj0.y4-kg block of wood a rest directly above it. As:3hdg,a jyd30ds r 7m /j.efsprb p6*h 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 jrb7*p5jx *cvj,d)zzx ,by5 u traveling at 60.0 km/h south. The two cars stick toge bu,bz5 xd7cj zj)ry,v5*j xp*ther 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/xppv;q00eh*)/9d 4mt ppxua g h east 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 c xvxe9 /a h*mpt ;dgpu04)qpp0ollision?

  Two objects move on a level frictionless surface. Object A moves easf.zqqhaa1w- : uacw7 d k1i8b)t with a momentum of 2:qad7iuz1.bk8wq -acfa1h w )4 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 collision?

  A small bomb, of mass 10 kg, is moving toward the Nh- gcm txh0+zwmx)9.yorth 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 kgx+h m)xyc9g0. hmw t-z. 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 = + 21.0 m. Wh6 :qz b :*ul kpw;sr s6igevedq-og039ere is the center of -q6pvr*qelu s;i9 o 6g3szb: egkwd:0mass on the x-axis?

  The center of mass of a two-pq.za64xt:,wa z/t lz9c*ms ioarticle 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 se zxat:zltio ,q9wz/cm .4 as6*cond mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at 092 a t4ygw 6m6irzfod(0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the co 9wtodzfg mia2y4r6 06ordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatlaf r.28zj3pixi; qh 1ed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the cp2fz3;rqx1 ih8 l.aji enter of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a)u 5u42+c4se2 sn- jtikfixgy 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 o2ts ii5u2)yg-xj+uef44kc sn f 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 leg inclul3g6hz hqc94 p 8mj/ogding the foot when the leg isgmgj4/3h6q zlho8pc 9 stretched straight out. Assume the person is 1.60 m tall.