What is the SI unit of momenk0 1mra1w8hg qq 6seh7tum?

  When a cannon fires a cannonball, the cannon will recoil backwa9r s32a-4khbav s -detrd because the

  A freight car moves along a frictionless level railroad track at consrvkk5*,ah/hw8; guma tant speed. The car is open on top. A lar hag,amrw8 k;5v*h ku/ge load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sleulen4x1vvb6(u: 0lc t+ za6ux d while sledding on frictionless ice. What happens to the velocity of(6vl xuxeb:uuv+6l na 0t 41zc the sled?

  A rubber ball and a lump of putty have e l0wx82:zalf-p g ,bkjqual mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty s fka-2bl z0xpl8,gjw: ticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you reps..2y/lf u5 jlw,w irr4emm :ql9(uypresent its kinetic energy in terms of these two quantitip :yr .m(l, suww m2l4fye iluq59j/.res?

  If you pitch a baseball with twice the kinetic energy yog ev5m0)up:6o.c-hwp:khgmq) rz(a nu gave it in the previous pitch, the magnitude of its momehqhup:om6az)(.p-m5 g :rngc 0ev )wkntum is

State Newton's second lyx6q)c*jsex p7ifoiz z lz74o* 5i ,7jaw in terms of momentum.

State the law of conserv:rcst/ ;zrun 50s /0oopj- zmfation of momentum.

  The area under the curve on a Force versus time (F vs.ytzt970i .g3 ;djz*lk vbc(jc f9hz5 v t) graph represents

  Which of the following izvoa62d,6kf3sgp /z e s an accurate statement?

  A small car meshes with ain70 o dw;o9ve+hjq2 d3z/llzxt:6 xe uwgx;5 large truck in a head-on collision. Which of the following statements concerning the magnitude of the ave:u h60owzvq3gitnxx5d7l;eolx9 2z/dj;ew+ rage collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fbd6uib83a* f yrom 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 b*ub8ydia63 fduring its collision with the floor?

  A Ping-Pong ball moving east at a c,lf4 n:bpud8nk 7 fwf(h7. gqspeed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Whic f:gu. 7,kndlfb8qhn 7p(4cwfh object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear momenazaf2g7.t*ewuum )r i ug7 m2(tum

  A 3.0-kg object moves to the3jtf ,xj6 xp8 gw;w:q0h+ags ngh27l w right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 mhjjw2a8x7:sxqwwhn0 ,g6 fg+;pl3 tg /s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 (kceq6-i:2qgkoma8 9 e q5 iiim/s tackles head-on an 80-kg halfback ru -(8mi5a qqc 9i6keeqg2oki i:nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum +(l9 w qx fcujd7agr,.is conserved, then which of the following sta7g jux+(.9lcf ,aq dwrtements is true about kinetic energy?

  When is kinetic energy conserved8t/z ;napr(jcimzmex3.azt8bp m- 6+s c2 jt)?

  In a game of pool, the white cue ball hiuuwu8ie 56sz rwb t;fqsp;j(1a36t h*ts the #5 ball and stops, while the #5 ball moves away with the same h;wp8fu s i3t6(a*u1t6;ze r sbwju5qvelocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 mvwza7/ *g sx gneh.(k3u6pw. ,vw7pb v/s collides with a heavy exercise ball atpp,baxsu k h7 /.( zgvvw736. *egwnwv rest, the 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-ojkrp5+5evsy 3e zx17gn collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfeceg y5sxv17+r j 35zepktly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s cy:v*u(arum9 weo j k*:ollides head-on elastically with an identical ball at rest. What isjwueu9r ayo*:v* m:(k the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed79;gab okkr6o v collides head-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 the collisiona br9kok6o7;g?

  A very light object moving with speed v collides head-on with a very heavy oba,a-f t6 foj53ge0t:dz)f f euject at rest, in a frictionless environment. The collision is almost perfectly elastic. The6aj ,t0a-z tf)fg:udff eo e53 speed of the heavy object after the collision is

  A red ball with a velociqzxdnk k jzkz -h,;qk+0-8,kxty of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s.kzxkh-;-0xz qjkz,,8 n q dkk+ What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocit0,x ods ur.rn5c8wk:a ,t 6wc os8l5kty 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 object after thtu:s0n,, ocol5 .tkr58w x8cs ad k6wre collision?

  In an inelastic collision, if the momentum is conserved, then which of tr :ihq+,vf 4b+b8w ymrhe following statemenf iwb8b:rm r+v4yq,h+ ts is true about kinetic energy?

  Two objects collide and stick together6bkqkek;u zo *1j2v92f/xww q. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a v8ss c,f4qsp4perfectly inelastic colli s8c4fpsq sv4,sion 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 skv0q)2jxj2ry wdd71 m qr1nz5ticks. Which object experiences the larger magnitude of momentzr0q22 ymk1nqd1 75jx)rw djv um change?

  In a game of pool, the white cue ball hits the #9 4ia,i e0nm z9+tav2g1 *d gw(q *vpds5zmkax.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 zk z6ylw;ud6 9b y ym4ful7/;lis falsm zu; kl6dblu;zlfw4y67 9yy/ e?

  Which of the following is a fi/f6tus iz: 8w)gzwg -alse statement?

  Tightrope walkers walk with a long flexib5bupvhrl7y9n: o-d r0 le rod in order to

  A plane, flying horizontally, releac:i. e zuwa(6hses a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb 6a:ez u( .wchifragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision w+cux fv km08.bas completely inelastic and both cars quickly came to rest during the collision. What is true abom kf.+uc0v x8but the velocity of this system's center of mass?

State Newton's second law for a systemko /-+txi,stahh8 *+o:w iljk of particles.

  What is the momentum of a 2000-kg truck traveqwda;x67wqy5yqxcr)* 6 qk z2kd3 de 3ling at 35 m/s?

  A 1200-kg ferryboat is movinr6dry 5ko*ul w;1m,fgb.g 4 fjg south at 20 m/s. What is the magnitude of its momentum?jdw ou5y fg gkfr1rm, l64*b;.

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mo qc*n+0*mgn-nc. a ss:-zkupomentum when it strikes t-:pc0 s c+ng*-znsoamn *u.qkhe ground is

  Two identical 1500-kg cars a27esu*p/h7g a hhl6 r28r fzu0 ls;mxfre 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 2 ;um /f h2lg*lurapsx0hrhef 677 sz8total momentum of the system?

  A handball of mass 0.10 2g; 7kiq5alnwkg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ball qikl; nw2g75a?

  A 0.060-kg tennis ball, initially moving at a speedi fhe 0ll/4pl5 of 12 m/s, is struck by a racket causing it to rebound in the opposite direcp4e /f 0lhll5ition at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding0oj7f:5+thcf tmcqb2irh7e8p o4 4) ttzna6m 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 ohe f:zf m 6acc75qntoti 8t rjm+0 hbp4274t)is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statiha3hg+vy ,,p;o fn9y uonary 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 capsule. A,3h,afy guhnyp vo;9+ t what speed does the astronaut move toward the capsule?

  A small object with momentum 5.pgh5lxj ev-6iahk y1v2z3ojq+4g 9 b40 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitud ha4px1-5vvyzb 9kg2qge i63jh+o4jle 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 fkh6 l 3k4:jromass), who is standing still, with open arms. As you collide,4rol6 kk:jh3 f while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right alono) (w6 vw jx;h(bl,,yzc8)qlzk eq/fi g a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcyclhow ; ,lx (c)6,v)ziqy(lzw j8e/qfkbe of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the regs1, nfe4tv6 sar of a stopped car that has a mass of 1500 kg anv61g s,tes4f nd they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,0laq,:v 1i ocnnh)t5/y00 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 a a1 5:l/oyvi,q h)ncntnd with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls woikdscxt*, 5 htg*+ n7*oie :h kwtu8-ith 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,8hi+:h o*ti sx*kkt 7dg5uo nct,w*-e 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 at the rate of 0.80 m/s ( b3/j (p 7buwx3lo/wr1u5((uderitjuwith respect to the log). With w37urowi j/( u5wxu (1/e(ljudr3p b bthat 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 ty* 8lw) iopgs)o 15 N and acts for one more second. What impulse was imparted by these forces t)o )y8i sl*wpgo the object?

  A constant 9.0-N net force acts for 2.0 sz0+a6xw k8 isx on a 6.0-kg object. What is the object'xax0zw8 k+ 6iss change of velocity?

  A 2000-kg car, traveling to th h99l-jsfmok7 e right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. Whathkl-sfjm79 9o is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Yochm /0tm-5/t fy6imu4tvsl n( 6qvh) zu hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball fhn 6-v4(cimuy6qlvtst5 z fm 0m )h/t/or 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onty3y8v1: w fd uq(add43fqhgr (h m)+yvo 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 the3a4dwf r(1qqv)+:fmu( hdy3ygy8d vh 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 vw)oj v5tu07av4,dqd q elocity of 750 m/s4 u ja5qdt0)d,vqw ov7, 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 al +ep(ih96vwq burning building in order to knock the door down. This requires a force of 1000 N. If the hose deliversep(9+vh iwl6q 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 rat/+ ewg-y kqbb8e of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what qyw /+g 8-kbebaverage force does it exert on the ground?

  A toy rocket, of mass 0.12 v*p:o/eijbz-hs ,4sj6da ) ghkg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exe*h,es-jdbavgi 6 )s4/oph j: zrt?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest x+tk:jta:b p k4t bphr)*u,flk8;nj:in outer space. They push each other apart. What is their sep *t xlbhpp)j8n:+kat: , tkbuj r;f:k4aration after the lighter astronaut has moved 12 m?

  A 3.0-kg object moveo. 0a*f2a2s7o9xuj gme n;rxns to the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Whatm2 0ar e;o. naux9osgjnx72f* is the total kinetic energy after the collision?

  A 0.10-kg object with a velov0o - tbm8b 8lgyalo;:city 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 object af;8 0 by8mtb-og:ov llater collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at g8mf3 ,.1ozicbr)tz ) jsen m*rest. The bullet emerges3ob1 gfjrsc)n,*z i8 mez)m.t (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 gu(c)e9/ g70yrezoxq 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 9 r0oeu)y/x egzqg(c7the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary (v r.- d)g q)xozdav/:6o j5oyas,szs ball of mass 100 g. The collision is elastic. What is5)g .6z:/)vqozdaj,- rdosx (ysvsoa the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with aeqqhk31n-.9eysv p g 3 speed of 3.70 m/s collides head-on with pq9s3y h ge1e3k.vqn-a 200 g ball 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 collide:m yh5c1vwxh vak) 7f+s head-on with a 3.0 kg mass at rest. Ikvxh 1) vc+7amf5:yw hf the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving t, s s+n)pll9xso the east 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 kinex+nl9p ),sss ltic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked stat4)jn6 wdhpq+ vm2uvz*ion wagon, who's mass is 2m. The bumpers lock together in this head-on injvhqdz+puwm 2 *v4n6)elastic 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 b hd gn-k9xuy72uries itself in a 2.4-kg block of wood a rest x 7gk hu2dny-9directly above it. As 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 eastp rqv7a+(xfu4 collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick toge+q7pxv u4(farther 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 twro4g+sr gbbk(/ivt *c2. a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) Whag2 bo(.rr4si / kgcva* tw:+btt is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface./u9w2ua,w(k b +cjikx Object A moves east with a momentum of 24 kgm/s. Object B moves north withwbk u9/uak j2(+cx, iw 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 g:nree5)yrzmefe* h u :,qmy0n ; r k9123jttwof 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a:, rmue*5th9rgn2e1mjqf y0e)rw3tn : z;kye 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 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 2gum-q kd0aiz30w4j x mass sits at x = + 21.0 m. Where is the -340q w0 u zamx2dijgkcenter of mass on the x-axis?

  The center of mass of a two-particle rh/ m5l*+,:4ki zpx *gebgb fm79gqtu system is at the origin. One particle is located at (3.0 m, 0) and has a ma*hb 9mt 45gplbfk+7 gezu,i * rq/m:gxss of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kqit bow-:vg c9en:4* jjj x2/kg at (2.0, 0), and 9ik-:oe4vj /g w:2xc tb *nqjj4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0gx)r2/la01z: :cuhz eqdr(lix ;zin9, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of masl 2 z zxzx:9l1)0n/g ( ;iecqdrhu:rais of the system?

  A 3.0-kg mass is positioned at (0, 8.0), gy( h(6wj (ysxand 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 masses being located at the origin, (0,jy (wsxhg6 y(( 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg incyle02,ofaw 1x5* 1tge3 wmah aluding the foot when the 1 0flg15*t awh,awmyexao32 e leg is stretched straight out. Assume the person is 1.60 m tall.