What is the SI unit of momentl9+ia 4g:,zt u2j jgfyum?

  When a cannon fires a cannonball, the cannon wgk w90yta : k4/3ltvmiill recoil backward because the

  A freight car moves along a frictionless level railroadcy6)va ;uldej jh8 khpefla 9z*+64d0 track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the ca0+6fcujjlhz d a9 pedl6 aev)4 ;hy8k*r?

  A child falls sideways jro6fom7p*, d uw+ if81vzs, loff a sled while sledding on frictionless ice. What happevldzo7 jru*o1 6m+ff8 s,i,wpns to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are throwz(gxz90kco p*n 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*z(op cgx 9k0z momentum change?

  A sailboat of mass m is moving with a momentum p. How would youxu2xsr+-6g23iitf x6fki-r81 sxhub represent its kinetic energy in terms of tr2x6xi2ih1bxt-fg ss 38+k furix-6 uhese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in t8uygb33;l5uwo)c zpm he previous pitch, the magnit;83zy bup)5u 3lgowcmude of its momentum is

State Newton's second law hgi.y9f4f v-9budb)u in terms of momentum.

State the law of conservation of momentqv8qtfu45s k qtxgu;q 3enj. )2fjf,u*ok1w1um.

  The area under the curve on a Force versus time (F vs.oxph9g8cbkh- i6- fc n*w+ dj. t) graph represents

  Which of the following is an accurpmi:p+, 3zzzqnptpdih3n /(u. e*oy5 ate statement?

  A small car meshes with a large tr-8atona7 uy zq7i; w6a/r)nvsuck in a head-on collision. Which of the following statements concerning the magnitude of the average co )usyv 7q/-tio86waaz;7nran llision force is correct?

  Two equal mass balls (one red and the onls+ :zvb,d1 du; q7kgther blue) are dropped 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 its gl+n1ks ,u bd;d:zv7q collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary boa5l x vti(rg-nxb07 2cwling 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 ln- 0c(xixvab2t7r5g impulse during the collision?

  Two objects collide and bounce off e(8z2g p:cv-vw zhw/36 jpog vwach other. Linear momentum

  A 3.0-kg object moves to 7ztk ,1 bveot yz.re62-cbot7the right 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 statemen,z2tvt.1bet y -o6r 7ozkbe c7t is correct?

  A 100-kg football linebacker moving at 2.0 m/s 0jg-an dly 5gia//vu6tackles head-on an 80-kg halfback runningna- j/ 6va5gd/0gly ui
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 t) mcl ;d1-x6i enns0r,wjx uj;he following statements is true about ke us;ln;mdrjn 01-)x,6 icjwxinetic energy?

  When is kinetic energy ca2:oei o9p x4uonserved?

  In a game of pool, the white cuys a3 ) f2emgek ;,avza9t)x 4ix(qu+b4s,xsse ball hits the #5 ball and stops, while the #5 ball moves away with the same vexaes uza4);fmk a(xi s9ysx,s4e2g )q+,3v tblocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a sp0(-trsl jf (k. kt-gu-zz:j/i2 kwcf aeed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed aftet zk(gk :iuz-kwf2aj0s.-f /jl(-t c rr the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-o5n++xc koox qmkrk*g5,y56 cen collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf rx5 6 c*5xoonkc5qmgk+e+y, k ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on (xfrqzpw1vh(ij1s)4 elastically with an identical ball at rest. What)z1qf( s wjx1 irv4ph( is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides 41if9g8v xmf ihead-on with a very 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 object after x48fmg19ivf i the collision?

  A very light object moving with speed v ql*, )9-miu rni2tlmwcollides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The sti9l-mw *m q)iu, nl2rpeed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head+tbi 4golcnnv)0 (.yl -on with a yellow ball of equal mass movi (y0+ibcotl4nv)lg.n ng with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object ax69 x5wsh1 +zvf(ob jmoving with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. Thewf 1bxoh9s 56x(jzv+a heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the mometym07(b tosj7r3z7x x bqzrwycn(:r /, ko,4intum is conserved, then which of the following statements is truexintk3bo7q0jos/r 4t(,rr7zb yw :,mxy (zc7 about kinetic energy?

  Two objects collide and 66*2qtwlh 5fpkf+ajq stick together. Kinetic energy

  A 3.0-kg object moves to the righa5zj1u+ubdt ; vk lb 2e;uftm/s*5j 7nt at 4.0 m/s. It collides in a perfectly inelastic collision wnd*vtu55 tuk;+ube1szlm2 j7bfa; /jith 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 and sticks. Which object exp79kacfu0l;m e eriences the larger magnic7mel f;90uka tude of momentum change?

  In a game of pool, the white cue ball hits the #9 ballb ;5byjpi52zmo,y hh3 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 follq oz6:i;n+bb;k8va q4.mlsn0,zk0/v igp ly sowing statements is falsvl k6 b;:zq0 z, bvo p4lyn;aqm/sg.ik+s8n0ie?

  Which of the following is a falsez1-wdw 0know4 statement?

  Tightrope walkers walk w1,zco hjmv t4,ith a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitti;ejh 1l1c;gtjng the ground. Neglecting air resistance, the center of mass of the bomb fragments, just1j;;t e g1jlch after the explosion

  Two cars collide head-on on a level friction-free road. The collision .4c 5. izq1qbvbs3lk cwas completely inelastic and both cars quickly came to reikz3csb.lq4.5c1 bqvst during the collision. What is true about the velocity of this system's center of mass?

State Newton's second la z ui6gfot-;9ubg-k 3zw for a system of particles.

  What is the momentum of a 2000-kg truck trav tmuxir2+j-x1 eling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mag adzr+5d8up9b nitude of its momentu59r uzdpa8db+m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when ,8cp)mz k ykk76mw *xcit strikes the ground 6cc*pk8)mmw,zy x k7k is

  Two identical 1500-kgccs5yg.a* yx/c2is 8f cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other movca 5*.2 yyxc /8icgfsses at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling hor gn.8 uvc2cbyg 6z0j:eizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the moz0ce b2n :8.gvygu c6jmentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spe yz far5.4e xy/of4/vbed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ba x5 ey4b zff4.vay//roll?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pondmxs--v4 x.ri*v 1ace k. The *k sxvmc-.rx v e14a-imachine 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 negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule /p 3j3o9u6pbrmg,p er l( zs*yand is stationary 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 14 m/s away from the cpor/,9my j p3(geblzu 63ps *rapsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5csj2mrtl a3a2.j70 3g+lmsq sz gq+g6.0 kgm/s approaches head-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 ob m 3z+js3 sq0m2a7agcgslqj.6rtlg2 +ject's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg ma.vr (ir+cxoo+jd) r3pss), who is standing still, with opv.op3or )(r+ j+crxi den arms. As you 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 a level, strai ej+ dk al(og4(ljou:6ght road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle ofjeoogd a6ku l4(j+ (l: 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 c1 : agfg,y)hi )bmgtv-ar that has a mass of 1500 kg and thbhi,1m gagy)-f: tvg )ey stick together. What is the speed of the cars after the collision?

  A railroad freight c .3kwwjsfd,1 har, 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 with brakes releaseds .,wkhwdfj3 1. What is the speed of the two cars after coupling?

  A railroad car, of masskj 03xt udj6pp*f+8v m 200 kg, rolls with negligible 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, an f3*+xmtpd8j6ju v p0kd 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/s (with respect to o t*mvshw9k1 4the log). With whatvm4t*91khwso speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15 Nw7m akl-u fc1ov66og0:6b bxi and acts for one more s oxm vubcwf67 iako:66 gb1-l0econd. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts kg5,:.uu3 /r tvv5fvk 5u+renzke l-pfor 2.0 s on a 6.0-kg object. What is the object's change of velocitykkkv5-5z vul3:nt frueg.e+,u5/ v pr?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bj;yq7a-3w wgb rick wall and w ybgqj7 3;a-wcomes to rest in 0.20 s. What 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 back along theyuf* qyk;3 e1l same 3 k1;qul ey*fypath, 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. The speeds of the ba7a )ksk2w 9sg-g )cwrall 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 tab )-72gkraw)ag9k sscwle top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bulletswxm/kz6()b5-4z k wk uob3eeonk m8i7, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What i 7 zo3x6 /ki4z-eowkknu58mebw)bm( k s the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burningh f.a+7i b u(/ahdg uu61d0etl building in order to knock the door +7i /ae al0hhgb tdu.(uu61fddown. 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 the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at th/y 648iv to 7m;rkcbl;uwsr6kvz:7yq e rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on tzv kryr:66iw /8 ;7t;7vq4ymu obc lkshe ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when iuxaa6:3lrgs7r (unt* zrr 3) fired straight up. What average thrust force does the rocket engia ):7rtxuur6 r(*i3 alrsn3g zne exert?

  Two astronauts, of mx b ye4usg.-oq ;h qr(af7*j:basses 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.y j(oe hqr: as7g;* xqbbf4-uaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in i5-bi7n*;bof0bfkcj a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. - 7b5n*k;fb0jfioi bcWhat 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 makes a head-onnzln vlc/ -:j8,2rzk7e-v,vht ycb 2r elastic collision with a 0.15 kg object initially at rest. What is the final velocity of :zr- 2 khvvn7-8rjzlvtcc , 2ybl/,en 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 bu p7qf 38)r9;yclouvtjllet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity;ouv fcy3q9 lrj)7 p8t of the block right after the collision?

  A proton, of mass m, a.aa82eddjbs ) wwr1m52 ; liuyt rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) w;au 8a5e rl) .yds djbi2wm12moving 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.)

  A 50-gram ball moving +10 m/s collides head-on with a stationaryk0g1tz.sg9 e sl;5 )ppmbx2 fs ball of mass 100bsp0t).9mlsf1 ;gsz5kg2 ex p g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moc. hxr+vv fgt8 i;0nq:73dlv zving 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 per3vd rz ct.h ng8:fqvx0 +7;livfectly 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 an-q 7d )urtnkl cks490 3.0 kg mass at reqc- klr70us n4d n9k)tst. If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collidesn:k8)7f-*/yolr n5bgg admhs head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during -bnos/8*7:)mkhl5yd f nrgga this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wai3 xvkx )eq:/g;kx)vvgon, who's mass ig /x)xi;e3) vq:kvkv xs 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet travel 551*s pkkzi6vdut2lt ing 213 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 bullet/block co*ktpd 5szv6 k1 l25utimbination 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 a0vwz 7 xrke g*(d5sf*mt 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togethervmzdr5f0w*k sx7 e *g( 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 309)h 0 2w1 hmhjizio/boyon5 g900-kg car traveling at 60.0 km/h south. The two c hm0 y/b1oi9j)2ogh95 nwzo ihars 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 .ohx+7 pneb(p east with a momentum of (bhp .+oep7nx24 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 North with a velocity of 4.0 r.cyiu2q e wz(* mlf8: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 withfmc8(r2elyzw uq:. i * 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 xl0ro w;oyomdj7be:+ r5 +j6b p = + 21.0 m. Where is the center of mass on the x-axis?orm0bjr+ 7o+oyw5 6pdb :ejl;

  The center of mass of a two-parti1cg2o v jbbk5)cle 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 o5 )c1 2jvobgbkf the 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)*zyq8o /il-i q.a ,cyb, and 4.0 kg at (2.0, 1.0). Determine the coordinates o. b,yo*/8zl- aqciyi qf the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, q7)k4h (us;8cs:s drht k1sdaovm7v/1.0 m), and (2.0 m, -2.0 m), respectively. What is the location k)qh7h s v4sk:r1c8udd7 a / sos;v(mtof the center of mass of the system?

  A 3.0-kg mass is positioned at ajrq cb1 yk+j veu3c2mcp,-90(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 of the system of three 9p1kc-aej2 0 c,bmqj3yu vrc+masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the posita;xssm,2plmo llg9kzt+1 p4 7erpv,8ion of the CM of a whole leg including the foot when the leg is stretched straight out. Assumx8mpzl t+7p9r412k smv, g ;l,paelose the person is 1.60 m tall.