What is the SI unit of momekwvdz8: ujv8u ri.; 1dntum?

  When a cannon fires a cannonball, the cy:x*2g;zv :oykcyf 5rybs y 1;annon will recoil backward because the

  A freight car moves along a frictionless o0 y73y7zydi7qqurv f8g+8sp2zm 1iklevel railroad track at constant speed. The car is opeu sy rvdzfm7q8g7k q1y 0yopiiz7328+n on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionlesjwivxe59 yia,:)y* nes ice. What happens to the ve9 nx:y* ev),i eyaij5wlocity of the sled?

  A rubber ball and a lump of putty have equal mass. ok(wuj-mxc)b68 o**wfmsmry h4 f j)a gp)0c;They are thrown with equal speed against a wall. The ball bounces back with nearly the sa-h(o mcr)80*4sag)w xmjbcfkfm 6y* up;) wo jme 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 momen 2lc)(a cfn5h:,xef sqtum p. How would you represent its kinetic energ) ca,2xfel:(5 hncq sfy in terms of these two quantities?

  If you pitch a baseball with twice the kinetivg+t-lit ; 5 /bdgmj,bc energy you gave it in the previous pitch, the mlgtm ; b5ibtj/-+d,v gagnitude of its momentum is

State Newton's second law in terms of mo lov:ef rzf09:j vvj97mentum.

State the law of conservation oo7s*h4wh wpu qa6i9mz81e)y z f momentum.

  The area under the curv8/ujue7 ftni-k6*ys ee on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate statement? uz:r7e-4m t8c vi7;crepv;mu

  A small car meshes with a large truck in a head-on collision. Which of c.fc0a n -k;2qm x xy/: *pug;lyula3gthe following statements concerning the magnitude.x ;l* alkgfn 3:m cqxcg2yypuu/-a; 0 of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fffwti1ju+p0sm 3ju (y (lu.* 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 collisfmlu jt0u(y+pfs* u1jf3w(i.ion with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationarqy5 . 11mto qe0o6 sescta4:sjy bowling ball. The Ping-Pong ba60soqtm 4 15ety1e cqsaj: os.ll 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 eaju:s;egoam0 /)v5 p;/xs9mjdcx2 ondch other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It col .1 4 o6idoja738pncyjj -mmyzlides head-on with a 6.0-kg object movin-m7pdm6.83y coao jy1n4 izjjg 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 hp2 kjy3c2n/dp alfback runninpp23/dy2n cjk g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is c1e )erj-uif5jc4bc/ donserved, then which of the followin)51-/cb eijrcf uje d4g statements is true about kinetic energy?

  When is kinetic energy conserve/3,h .nujkpbqd?

  In a game of pool, the white cue ball hits the #5 ball and stops )6e wgndkty 39kta4;m, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision i);9kmka ntd3yg4t6w e s

  When a light beach ball rolling with a speed oyw6. e .abt.mv2hf4dpf 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed..bw6 afpmdtv4ye. h2 after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on cijw7hge9ce 0set *n mm))ps33ollision with a stationary bowling ball in a friction-free environment. If the collision is almoc3et 9je)0pg )*smhsi n7w3emst 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 head-on elasa.g9t*si 8 +//lio zds/hlwce tically with an identical ball at rest. What is the speedi.wga zlctes hs8*l /o/i 9+/d of the initially stopped ball after the collision?

  A very heavy object movinx)afax6 df+0r ng0tolzqh 0 85g with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. )tlar6 gxff580qazo0 0+ dn hx 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 collihspk.)ve+s7 (14qubpv zh9pwdes head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after t(vbw )9khqpv4s +7sz.1pph euhe collision is

  A red ball with a velocity of +3.0 m/s coll,m jv9b6( yxtyides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the vbyj xyv 6(9mt,elocity of the yellow ball after the collision?

  A very heavy object moving wh:dy o0b2s e 1mkm*+fdye g:;cith velocity v collides head-on with a very light object 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 d* 0m e1md+scf:yb:ho2ey kg;object after the collision?

  In an inelastic collision, mteb3) a6zwjl6 wx0zq; zaz3, if the momentum is conserved, then which of the following statements is true about kinetic energy?6a3) 6w 0zqxj;be,zzmt3wazl

  Two objects collide and sticqp,d cj z.q/ry +*nqn5pp; 6cjk together. Kinetic energy

  A 3.0-kg object moves to the right at 4.)zkrh.bazs y -26ss2u0 m/s. It collides in a perfectly inelastic colauszr-sb k6s .2)z2 hylision 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 object and sticks. zr.d6ei s fc+8Which object experiences thidcs.f6 +r ze8e larger magnitude of momentum change?

  In a game of pool, the white cue ball 7 ii:l5 jtbm4wi3+lpwhits 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 mass7o3k3ie+vt+9cp l nraes, M and m. Which of the following statements is false?k +73c v pt+o9aeni3rl

  Which of the following is a fd uzl(); xg+2n 5cg e)vxcrn1ralse statement?

  Tightrope walkers walk i hpkc))qj ij+xcih*o0 ew01( e31xjywith a long flexible rod in order to

  A plane, flying horizontally, releases in1uin 4fl4y /a bomb, which explodes before hitting the ground. Neglecting air resistance, the cen/ n4iy1f nl4iuter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was como0 v 6.oihcnih,9)bp7v or*v tpletely inelastic and both cars quickly came to rest during th*bir6.hv 907vpcnt)vohoo , ie collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of pavwx- lh0 *dwgum0t i4-rticles.

  What is the momentum of a 2000-kg truck traveling at 3*(*r -izff pob5 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Whz 76iytfk qu(-at is the magnitude of its momentumyu6q -(tfz ik7?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum /8c*jymmqfg0c p 2cj gje 5s.2when it strikes gm50ccj*m2 jpjcfq y8/g .e2sthe ground is

  Two identical 1500-kg cars are moving perpendicular to each othxs jao3c87ij cxpe)6ttq0q ,4er. One moves with a speed oftj4) xqeq,3o76 s x8ptca0jc i 25 m/s due north 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, trar*zd hym*(-t cveling horizontally at 30 m/s, strikes a wall and rebounds at*-rht *(zc ydm 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struckny;4o6 t/3mvv( 4efkot*k gcphv5e4 z by a racket t g *3m4(khzv6 ;kvo5yc/nte4efpvo4 causing it to rebound in 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 la15jp s-2q/pwnu;fmae/ro7 the 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 direction. What is the recoil speed of the pitching machine? (Assume negligibl1 j/l ;5onp-rf smpae7uqw/2ae friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is hi t,h5dv)fzs)us5(p:njwm 3 stationary when the tether line breaks. As a means of returning to the capsule he v t3mpzuhfi5: ) d5n) ,jhwss(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 o2fpvluo9.xj3wf 50oskt82u a cb j03a 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 objuos22 j8fpvxju3 bc wta309kl 0oo 5f.ect's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your nl2 wft *nj2mjvniqug7 zr6 ;rn5b62) friend (40-kg mass), who is st 6g ujmrjq2v6f;7 zn 2b)2nl w*rinnt5anding still, with open 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, straight road at a speedlj3u a 0xr8,:sm:bblibjr n.b6ms 6gq .1(qxw of 6.0 m/s. It l 1sijxmj r 8b3b:..6(,6ql ugxb:bn 0qam rwscollides 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 irno2 js. 3ep1cnto the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the colli re1jp3o2 ns.csion?

  A railroad freight car, mass 15,000 kg, is allowed to cov-g gw5oy o:s- * 2g1hkuv*zaaast 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 brake52 w*1*ysgko- v ogzag:u-vha s released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligd q1dvp/y;ci1ible friction on a horizontal track with a speed of 10 m/siq1 /;c1dpvdy. 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 happens?

  A 60-kg person walks on a 100-kg log ald i25y- s ,rq:n2nuust the rate of 0.80 m/s (with respect to the log). With what speed does they:n ,r5n2udu si-q ls2 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 4g+m g e4 lhy7w-aq6dp*n+mdq N and acts for one more second. Wqq 4a-hg ep4nmyd+md +g *6wl7hat impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a trechyg3 bi,6 -z2( 9yonr/sg6.0-kg object. What is the object's change of veloc,-gegr z bro(y3ty6 c92 ihn/sity?

  A 2000-kg car, traveling to the right at 30 m/s, cra)r7 e4 dogm++ lw:zeollides with a brick wall and comes to rest in 0.20 s. w7g)e+zer4 :dmola r+What is the average force the car exerts on the wall?

  A 2.0-kg softball is ps dz 8o9cn4)j/s3tyzwki q40mitched to you at 20 m/s. You hit the ball back along the same path, and at the same i ss38ywo94mzdkq tz)j 4nc/0speed. 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 tayu1l3cmr pn*u pi+; q3ble 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 +ry lp*c;iu1qmp un33 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-oo ooou.(dr aot(96(i gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force eto((uoio raoo 6do9.( xerted on the machine gun mount?

  A fire hose is turned(,l */xkqco d( w.u p+v2/pr-b bishey on the 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 minimum velocity of the stream needed, assuming the water doesn't bounc+u rev(hxio( *- by. /,/pds2wlbkc pqe back?

  Water runs out of a horizontal drainpipe at the x9,lt hxs *xpaj44r*prate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what a*l ,parp44 htxxsx9* jverage force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of l dxmkoq,u e mlnn:4:9)zn /:e40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket en9luoln )d4nmm:kex, nezq : :/gine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiaz kze ;(tju q6(rnqrfigm 7)h- :/e9swlly at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 12 mi:r;hwqze- mrsj /gk(96f t(uznq7 e )?

  A 3.0-kg object moves to the right with a spee14sa ra86k c sjt4hct;d of 2.0 m/s. It collides in a perfectly elastic ct6tchkca4 sas;r 41j8 ollision 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.c:s3xsbp04fx+ou o hfm. oj( velocity of 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 velocity of the 0.10-kg bof3f:sxhxmoco+u0.p( 4s. j object after collision?

  A 10.0-g bullet moving at 300 m/sqn6 hkbtt8x-; is fired into a 1.00-kg block at rest. The bullet emer-;h ntt6qx 8bkges (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 rest, is struck head-on by an alpha-particle (which coml s,u +95wwf,lup imt4u/9s ansists 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 neut ut mplsiu wa959,/wmful4, s+ron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on w)-( p/qqheit iith a stationary ball of mass 100 g./)-teh (qpiiq The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g ng ; (3c+onraemoving toward the east with a speed of 3.70 m/s collides head-on with a 200 g ba;3r cno( +ngeall sitting 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 of 5.0 m/s. It collides head-on with a 3.0 eu uajame;4sa1 3ux6(kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses a43ax (u ejeus16;a aumfter the collision?

  A 2.0-kg mass moving to the eastnbj,i6v o6cr 2 at a speed of 4.0 m/s collides head-on in a perfectly inelastic collisiov obrci,j2n66 n with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocityzree6g09ii cr+cu9 0p5)ekjh v, strikes a parked station wagon, who's mass ishe 0ue9kr)gjrci60ec +i z59p 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 traveling 213 m/s in a vertical direction buries itself in a 2hdnd fyk x950g(re +n-.4-kg block of wood a rest directly above it. As a result, the bullet/block combinatigd9+ xfe nhry-kd(n05on 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-kg4 sdpf 6kfu( 5r/ni+qa car traveling at 60.0 km/h south. The two cars s/dpruqfa5n+fs ( ki 46tick 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 0o hi0 v. 1qa;grhds7qa 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is th07hq 0. ;g1sivardqoh e direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east wg 4fa(fj 8 of hzhkq36-blz/+eith 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 comlb zz/( fek4fajh68f g o+-hq3bined momentum after the collision?

  A small bomb, of masvuir6: 5rl1ezs 10 kg, is moving 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.uv6 i: 1re5rzl0 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 = + 21f*4xrvacnd9 bx(od 95.0 m. Where is the cenoxr*4cx9bdd9 nfa5 v( ter of mass on the x-axis?

  The center of mass of a two-particle system is cio l7,b-;brcrj(ing l or-+:f y.+jaat 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 second mass of 3.0 l+,ir;y+oagn rljj -bc(ib.rc- f: o 7kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0)/5a6 l wlbbv3p ri6qn3 u)v:in, and 4.0 kg at (2.0, 1.0). Det6b3vu3pbrnv w /)laqii5:l n6ermine 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.wkoy+*4oao wp,6 d rb7no7qv.aa 8lo+0 m, 1.0 m), and (2.0 m, -2.0 m), respeca o l,pod 7vrwowy*a.7k ++8bq4oan6 otively. What 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 at,k6hrq(ptju l* bg+33o/ly la (12, 0). What are the coordinates of a 4.0-kg mass which will rek gllyo( 3atb/,qr 3+l*6hjup 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 tag2ys( ,t6hr0k cgbytgyn(3 ( he position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume thys btg(ngayhtk6(c ,(g3r20ye person is 1.60 m tall.