What is the SI unit of p1:uf1 j )vfzsmomentum?

  When a cannon fires a cannonball, the cannon will z /wugkqbi2-1.tnl+ l) d fj(wrecoil backward because the

  A freight car moves along a frictionless level railro--q35 v6ubb7apldoljxy o op vq1*-.gad track at constant speed. The car is open on top. A large load of coal is -yu6pojog*qvabx5l3boqp --vl d7 1. suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a ..ocvv0k mkp87 +ruhl sled while sledding on frictionless ice. What happens to the velocv.klo hv0+mpkc .8r 7uity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thr boyf* *ed6-5hp cp9 j-mdnr5urat,8m own with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentbn6 m**f 58e jdmu5hprd- -o9pa,tcyr um change?

  A sailboat of mass m is moving with a momentum p. -mlq r: m-(wmmHow would you represent its kinetic energy in terms of these twomq :r(wm- -lmm quantities?

  If you pitch a baseball with twice the kinetic energy you e8oscnwfz;t5 ( :p7x wnx-f -ugave it in the previous pitch, the magnitude of its mome -:;w87 znnefoct 5xwsfu-px(ntum is

State Newton's second lhb 9xg8jx5t ql8() xvkaw in terms of momentum.

State the law of conservatiw cj2z(lcbo5 *zn +ba+ ,d731 .arfnm .bnvakion of momentum.

  The area under the cuq hho *up1ev6o-2bx7m ufiym ) 0tzo*0eg6+eurve on a Force versus time (F vs. t) graph represents

  Which of the following iidk53d yo(8s0jz r2ers an accurate statement?

  A small car meshes with a large truck in a head-on8cpr i9/w+slo/5l m )pcr hzc* collision. Which of the following statements cocl)h8s5 /zw pcm9+r l*ri/ pconcerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other bl k 9hu*xs32lssue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to th kuslx*h39 2sse greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides witdd6xm 3zrj4.j h a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slo4j x3djz mr6d.wly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and j7 fsct:fw0 )zbounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 im g7)pxc1(no m/s. It collides head-on with a 6.0-kg object moving to the left at1)mox7ni(cp g 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80sgsz;+t :a;8a4m (mldi6j x +zsdh8 ut-kg halfback runngsd8st jh+z;ma4(dz:8 t+aui6 l ms;xing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mo-12 8zm 5tsy (vvfcqhvmentum is conserved, then which of the following statements1vzm f8v5 2hcvs qyt(- is true about kinetic energy?

  When is kinetic enernao f9 p*f(rinnz(hjo+mt: c .hy +h:6gy conserved?

  In a game of pool, the white cue ball hits the #5 ball an7 1;ewgyxztt qg:s 40wd stops, while the #5 ball moves away with the same velocity as the cue ball had origingw:gewt;y7t xzq0 41sally. The type of collision is

  When a light beach ball rofogk+trq 6p(331lqzy lling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the + 1r3y tzgkpq 6fqlo(3beach 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 cf c r;2pr9rks/x ie8y)ollision with a stationary bxe)rk9f8/ riy2 srp;c owling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides jeaa4:pa 4xco)kc 2nt6requf4c;m o00j: - dj head-on elastically with an identical ball at rest. What is the speed of the initially stopped4:p0cu ceo-adjx at4 qc;fnm):e kj2o0a6r j 4 ball after the collision?

  A very heavy object moving with spe;nquah m,cf )yn4ia 54)qyzl; ed v collides head-on with a very light object at rest. Tl4 ) hn5y4 iq;,zcq n;uafyma)he 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?

  A very light object moving whu try7u5d3yd89phh) ith 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 the he9h3y rytd)7dp85h uhuavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow b(dp(fere0foz s,5vfg1*c p/b all of equal mass moving with a velocity oefgfr ps5 vb0/ *cdp(z( e1,fof -2.0 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 lww; +x6s-2komrb*r psight object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object ;rrm 2*ow-k bs6psw+x barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, (gnz(ci;xuow:)u5o f qv r7ku,9slp 5if the momentum is conserved, then which of the following statements is true about kinetic ener; qkgc:(lzu9p uv)5fu57sxw(, noo irgy?

  Two objects collide and 7up yse*53 6,l dhjhpgstick together. Kinetic energy

  A 3.0-kg object moves to the right 36(ay h9zi g ugbcap79y3q ek9at 4.0 m/s. It collides in a perfectly inelastic cu 96gy cz93ypaa k9gqe(73bhi ollision 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 collilx )vyle qus22(q t;).cs bku5des with a large object and sticks. Which object experiences the larger ma s2 )(qulv)5sucq;2x ekylb t.gnitude of momentum change?

  In a game of pool, the whit1dgziu 1 4q4;oy-dnlfw r)7oye 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. Whj31pzh4fekfm1h 45(z 7gdfar ich of the following statements is falsehda543kre 1j1hpg(f7 4fzzmf?

  Which of the following is a false*j8v p r+04h.lekdxmb statement?

  Tightrope walkers walk with a long flexible rod in or 5wv5 k4s r9lsknq/wb77pg:jpder to

  A plane, flying horizontally, releases a bomb, which explodes before hoyf8tm 7er3sge 0 a7h5itting the ground. Neglecting air resistance, the center of mass of the sr t7hymgf 3oa 75e80ebomb fragments, just after the explosion

  Two cars collide head-on on a m v5cf/,o2 zxwlevel friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about thmoxvw z c2,/f5e velocity of this system's center of mass?

State Newton's second law for a system of particp4ho 4ra 1 -. j) jipsyhjun+thb::n5fles.

  What is the momentum of a 2000-kg truck travelina)0*s:ldo3af n7ly ft g at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mag)5k ,3s/m: mphuqn lhgnitude of its mommh5gh su/)qp,3 km:nlentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m.4-: +ymn83 lxxfome ar Its momentum when it strea4l+ynx- 8 :f xr3momikes the ground is

  Two identical 1500-kg cars are moving perpendic*ak*35g0gujgf u g 1j 7og6xvcular to each other. One moves with a speed of 25 m/s due norg6g*ou3c5fjkuvax 0 7 *gg1gjth and the other moves 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, strb6pmc0fy yn4/ l06jcq ikes a wall and rebounds at 24 m/s. What is the 60 cf/cp6bjqym0n 4 ylchange in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving a .(c3sr9w0z 5ysnhwyrt 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.y03w9rrh sz y w(5c.ns What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a fo hn.j u;y/a5trozen pond. The machine fires a 0.40-kg baseball with a speeoh ujya/5. tn;d 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 ou3.m8fazs9.d1-h hl s n gb+8+sw+ atajvi3kcmtside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throwhh-m9bvnga+lz31s.8f it8+ c a.d +3jkws sams 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 approache* mce)nomnk4m9w8 7qh s head-on a large object at rest. The small object bounces straight9mhn) eqwmc8*n4ko7 m 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 ice at 4.0 m/s to greet your friend (40-kg mass),wpp w) lze5-b9zc/t 9y who is standing still, with open arms. As /t 9c5p-w )p9zlyzebwyou collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to3d :c)e.oj vjqau1*giy)hds5 the right along a level, straight road at a speed of 6.0 m/s. It collides directly wi:haei1cjydg d.3*q) s )uojv5th 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 rear of a stopped car j(vm:u9w g 9lrthat has a mass of 1500 kg and they stick together. What is the speed of the cars after the 9(uj:lrw mv9 gcollision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along awgn* rs -hx4yze5)6jg 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 ceny h6 r-g54jz*w)s gxars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictio:kb19ur 0fny.lmi 5oon 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 lands01no9y romil.5bu :kf 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 v 1lzle;l 6xrd k- c5nvj)5qt40.80 m/s (with respect to the log). Wdl)vt6lqx vej-zlc5;5k n1r4 ith 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/uz:azrx4 (k1oqu ( wtrj(tezf o3t50 force suddenly increases to 15 N and acts for one more second.o3 ftt uz( 4wtaxj5kezu 1(0r(:qr/zo 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-kgbtfpf.) jk(p8 object. What is the object's change of veloci8jt .k (ppfb)fty?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall and 8 tsd d8qy 8br/zxydt;39g4m fcomes to rest in 0.20 s. What is the average force the car exert/b;98ysrd yg dfd8mx3 ttq 8z4s on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the b7pj0fj+s2 *.8s gprix ycax.x all back along the same path, and at the same speed. If the bajj7s2yr i x+ x8.0 pcagf*sp.xt 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 drnl2 /0bg)s ntqopped 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, 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 n)/g s20bt nlqtop?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle velocit:d ht o.b vusdr8r/e84y of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the mac d8 vu48trobehsd:/.rhine gun mount?

  A fire hose is turned on the door of a burning building intvckwdx6w 4uzp; (8g) order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is 4kcdxwt)p8 ;zug(v6w the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rat(y8 neyy;xm83 1akrz re of 120 kg per minute. It falls 3.20 m to the ground. Assuming the watz1e 8yn8r; kx3yramy(er 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, wkc1gi:pivr+ 3fk 4h 1es0jhd(hen fired straight up. What average thrust force does fdk pi( 1shc1rg:v +4ki3 ejh0the rocket engine exert?

  Two astronauts, of mass pn2 5f /di xejxo*c/eg3ft+u)es 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astron*ic fe)j+ tx /xupdn35 /2oegfaut has moved 12 m?

  A 3.0-kg object moves to the right with a speedtof .u:zur2 *c7xi:iq of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the leftziuuq 7* frco.::tix2 at 1.0 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 directh,zd6j9 e0,qclx4 7pntne3 kdf5tw;s ion makes a head-on elastic collisiod6, th7, p0elnd;k4e wt 9cqx n35jsfzn 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 300 m/s is fired into a 1.00-kg block at rest. The buliyyw9/9y9fy 3r3n4ovn6 a tv elet emerges (the bullet does not get embedded in the block) with half o393 9ayevn9/y6 4yryitnfw v of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-partilg-es ui)5s(j0 oyu7ncle (which consists of 2 protons and 2 neutrons) moving at speed v. If ths0ug ( )s5i juel-yo7ne collision is completely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/i6.k v04n6 bsgtuk6lls collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball0b6t6k.4k lv6s lunig immediately after the collision?

A ball of mass 400 g movin1.o1jn owf;wkskas 7 -6qn2qt g toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The cowknfqj.q 7 tow1noa12-s ks ;6llision 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 of 5.0 m/s. It collides head-on with a 3.0 +maa;( b 1hh44jlyi3hkrpxr, kg mass at rest. If the co4 3h ara(i+ hhxlj ;k4,ypbm1rllision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east ab,)ge +dwj s9mt a speed of 4.0 m/s collides head-on in a perfectly inelast , ejb)9mgswd+ic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a vezrwk )zkeo37;locity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock te3 w) o7z;zrkkogether in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itsel z pusd 9(at6(5s0kusnf in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination movn ( k06zt5usuads9 s(pes 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 aml4w gg;trnri 9- k3a-( alrp1 3000-kg car traveling at 60.03 atmp149- rg -nl;ikwlar( gr km/h south. 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 a 3000-kgln-o. 1txa a+c car traveling at 60.0 km/h south. Tl.1na+aco tx -he 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 moves east with w,3cmfjr;q3 i(l.sdlbn0: j da momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a pd3nqjcf 0(dsl: m3,i;lb . wjrerfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward 8d0eb2 f:ob 86k exnwgthe North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed ogd6bb8 eoe8xn0kf :2wf 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? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 2s*tk+ uet8vyd g g0*;3qy.agi1.0 m. Where is the center of mass ona3y tt *gksi+ d8geu qy*vg;.0 the x-axis?

  The center of mass of a two-parti/cn3 r,7 hczojcle 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 3z/hc,o7jn c rof the second mass of 3.0 kg?

  Three masses are positioned w kv; vinhb1a(.shv/t( bb) 1jas follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0/ vba. bw hktv1h vs;bi()1j(n). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.py*ev5cmk. bt( k47u t3qf5ps 0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whapc 47f553p qbt* y. eku(tsmkvt is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at1who qt 6+caw+ (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of tq6a+ otwh+c1w he system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a who o.k wvgd8b,yvldz0:v wh)y);le leg including the foot when k ;)lwb v0dv8).z:,hyg o dwvythe leg is stretched straight out. Assume the person is 1.60 m tall.