What is the SI unit of momentumjfd1/q.c b(n ;f p0utj?

  When a cannon fires a cannonball, the csjt (bjj 8z ke+191odxannon will recoil backward because the

  A freight car moves along a frictionless level railroad track atzh (fbexmm ,i w k2ju17*4rxr9 constant speed. The car is open on top. A large load of coaleb 1 mxzjx,m9r(4 kr7i*fu2h w is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways offm3)yi +x4x yzc i8q(1sa2 cwxd a sled while sledding on frictionless ice. What happens to the velocxac+m3id 4 y2y(sz )18xqx iwcity of the sled?

  A rubber ball and a lump of putty have equal mass. They acfu: /+vfutb(9dpe 5ure thrown with equal speed buu(vtc5/pf: +ud9f eagainst 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 momentum change?

  A sailboat of mass m is moving with a momentum p. How would you repres 07p ws/.uc y.zyglqwln/fft di6861 yent its kinetic energy inys/yq/0zc8f7l 6 tywl d.w6 fpu.ni1g terms of these two quantities?

  If you pitch a baseball with twice the kinetic energyl;a02r ty1jskd;ib0t7lf* g y you gave it in the previous pitch, the magnitu2rfi*07s1 dg;b tyaj kly; 0tlde of its momentum is

State Newton's second law ajg:vvr.eg,a(/2g k g in terms of momentum.

State the law of conserva1j5rxygcvai 3t h o+;j-j*cz:tion of momentum.

  The area under the curve on a Force v ; iqoay+ln: vhp:eez,0dm9 e/ersus time (F vs. t) graph represents

  Which of the following is an accurate statement?un8f8ohvb)q4 ; kmls 8e fsbkq);jv/;

  A small car meshes with a large truck in a head-on collision. Which of the folls+tfob2-/14(gdqzu * gf k aatowing statemen(ffsgg4zt*b 1ao2- u/t kadq+ts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the otheezi in-+bz5sz4+iu nud p: m92yab6-ur blue) are dropped from the same height, and rebound off the floor. Th-6a yibb+isz n2 z pudu9i: zn+um54-ee red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed ofa,z41 c2 zjcmctp4qks/)(g y k 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 /j,2ca1pqk s y)ct44 gm(zzck. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear mbm bjcd1:k2b :omentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-lvp7gku+e; 2 pon with a 6.0-kg object moving to the left at7l2; upk pv+ge 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m 8f8s6bgsm+ 3;jfo90 epkwx pz/s tackles head-on an 80-kg halfback run x ps;k 08b3o9f 6ew+psf8mzjgning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisiy4n-eak x)ns gy9 ;mkau8(7bt on, if the momentum is conserved, then which of the following statements is true about kinetinku;- (ynm) 4y 9aa7bsgt ek8xc energy?

  When is kinetic energy conserved?cqw,zu qig54hl)o) )a

  In a game of pool, the white cue ball hits )gnna/5c u2a5c b h,ljthe #5 ball and stops, while the #5 bab/l,ccj52nan g)5ha ull moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling*t l 94mcvp:zs with a speed of 6.0 m/s collides with a heavy exercise bv*s9 clzm4p:t all at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball travelingdip(t6b t1h z ta0eqeho7 2:+wlxbu15 3.0 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision isz +2(pwea6h:o i0 qx5tt1belbt7du 1h 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 head-on elastical bccnv.j;8k037d *vzrg0cr9 h 3osfvtly with an identical ball at rest. What is the speed of the3svtzghc 098rrdo. kjbvf3cc *7 ;n v0 initially stopped ball after the collision?

  A very heavy object moving with speed v collid) g*b ii+3 uhmn+lz/eruia0x5es head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slm +nxuri*buh5 zgei+i3/l) a0ows down. What is the speed of the light object after the collision?

  A very light object moving with speed v du l62oxw*:wq h+k*hohs:;srcollides head-on with a very heavy object aw6xqs ls2: h;+ w*duho hok*:rt rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on withsprq.jge0.ds+ /*ausny o /)h a yellow ball of equal mass moving with a velocity of -san.*ypsgoe/jrqd s0 h. )+u/2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with x t ewxmewl4 wi7b.39wy)s3 y5velocity v collides head-on with a very light object moving with velocxl5.7yyx4)e3wb tmwiw3w 9se ity -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 collision, if the momentum is conserved, then/tl b21i ho c/l/vr;mn which of the following st rm;t//ov1ic l/n2l bhatements is true about kinetic energy?

  Two objects collide and stick together. Kinet40qfv8sowsc h ,i,2 acic energy

  A 3.0-kg object moves to the righr6- z 0cxl-j9 vua- h5,yiaucrt at 4.0 m/s. It collides in a perfectly inelastic collisjhu-cva-ux,lca9i rz5 r-0 6 yion 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. l7e5cxe* d ;ul Which object experiences the *x ll;ecud e75larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is d3lf.thhz00.b8 yith8h22zyeo hb3hp+m a l6neflected 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 statemegw(hv v vvw,7/ln lf57nts is fals(v/f7 h g 7n5vl,lwvwve?

  Which of the following ij ho dq0bj21t:ht7bh, s a false statement?

  Tightrope walkers wae pa owrl68mf3o an 7laa7-t;/lk with a long flexible rod in order to

  A plane, flying horizontallycd imce7 18g b(t.ucp3, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmeng1ietc m. p8dc 73bu(cts, just after the explosion

  Two cars collide head-on on a li-j iqvj6 * ochx,sy45evel friction-free road. The collision was completely inelastic and both cars quickly came to restoi*ij yhxcq4j-s5,6v during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particle )daot/ yu7fp ,jqz: evvr26y-s.

  What is the momentum of a 2000-kg trukjc/*n)2 cq 9dqv7ri3.zfiekck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What iaorofa q8*: p(s the magnitude of its momen(oaf raq:8p*o tum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momen9,a1*y p zdwqt-o w t1alelu57tum when it strikes the t d *1l 1u9awo5- tqlwap7ey,zground is

  Two identical 1500-kg cars are moving perpend1s .bnr v6n; qejw-hq-icular to each other. One moves with a speed of 25 m/s due north and the other move;1 ebq swjq--nh6v.nrs at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally iygr fc4bq8 osh.q:stanzd2)7t( , v0at 30 m/s, strikes a wall and rebofo70n2baz 4vsd. y gq(t ,c:hq)8rtisunds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spe v;84za yagaja j:y4)sed of 12 m/s, is struck by a racket causing y8 j ;): 4gaza4jasavyit 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 the baseball) is placed on a frozen pond.; /yzcx5ai q(x The machine fires a 0.40-kg baseball with a speed of 35 m/s in the hori;x/c( yq5azxizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationaryrhc-zkp8ksjky-06 -d whh- s ykz0--c6k pjdrk8en 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. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a lar6afl;iyp n v(0ge object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the mali0;f v6an(py gnitude of the large object's momentum change?

  You (50-kg mass) skate ono5iu; ftus,: xm*8tia ice at 4.0 m/s to greet your friend (40-kg mass), who isimutax5*f :o,i 8 ;uts standing 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 rightii 1zk l7 (hso8yl ywld7jx.(9 along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the col. o978y(ws1 7lidlli(jz hxyk lision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a o1bwu4 n 54pu2s ,gxctk jm,7lstopped car that has a mass of 1500 , 4 l4 c7pn5mxjkwgb,sou2u1tkg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a levu ::x-q1cgzmv1rmhz- 4wt u r3el 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 tz-:mc3-1z1 huug m:wx v4 trrqhe speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible e4tu3 jg)krln 9k3: vifriction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight do j43:klr tnguk3i9)evwn 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 at the rate of 0.80 m/s (with respect to 2dt(ta yt e6pfv/j9d,the log). Wdtp v6e,j/ad2fy(9tt 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 force spkapebk )rj5 :cwb3 49uddenly increases to 15 N and acts for one more:pk5)krwe3 cb p j4ba9 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 is)c*k/bmikxf7g :7)y2 cn ;ex r3ldsul the objectnel :3gxid/c7rub2y) *)xs7fkl; kmc's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/e/wc:+w ztn1zy0quz.nk k.m 1s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the caw/ 0wmq tzez:zcyukn. n.+k11r exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball 67n bjrebw -t0e5x0dv back along the same 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 a7vedx6j b0 e-0 nrbw5tverage force the bat exerted?

  A 0.10-kg ball is dropped onto a tab29ptp2wpc/ su le top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/spp922 pw t/scu, 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 mass 35.0 kg, fires 50.0-gram bullets*: xkuty+ rbq8, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on+:*ukt8rxyb q the machine gun mount?

  A fire hose is turned on the door of a burningymcfp/ a(0 p+ty *qvq7 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 bounce bfq*( 7q pv0ay+tycm/pack?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per am. o;g ( u;eupp3u4vzminute. It fm uapgv4p.u; 3oez;u( alls 3.20 m to the ground. 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 veloc5bh*p rj . aiyi9ht05jity of 40 m/s after 3.0 s, when fired straight up. What average thrust force *a 0hijp9.5hb yjtr5 idoes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at red8:n+vcrv *wk st in outer space. They push each other apart. Wc* w +dkrn8:vvhat is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rjoqz 0y5 h3-5u4irr)j8ozjw fight 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. What is the total kinetic0 54oq)i wjfo8jzhu jrr 3y5-z energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in theji/ a*3wyp lfpq.pd9( +x direction makes a head-on elastijad9ly fp/wp ip* .q(3c collision 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. p8)9dsfqhr 5t h:;gan y+bkh28wk;kg 00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of thbhp8fhty k :k5+ h2 kq;89gr)dnwg ;sae block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle ir (ed-+ k9zm48zg uhf(which consists of 2 protonsz(9- hg+fkmzu8 idr4e 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 neutron's mass equals the proton's mass.)

  A 50-gram ball moving 8n luyjp -4o1+ykt 2ta+10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. Wt-p4t ju+ynak 82yo 1lhat is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the x./ exe)n,s81duon6 mv zo;cm east with a speed of 3.70 m/s collides head-on with a 200 g ball s8o mcxdn; en/v 1zox6u.)e, msitting 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 wi .f; 7 pby)6)fdzk ogmet6ni-kth a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collisiok 6b)in)-kd fymo.fgp;76e t zn 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 collides head-on in a wl87zphx7ity y ul c1(8 iorb4gu2u-)perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collisi48ipz r l -yhuogu)(2i c8ubt1lyx7 w7on?

  A car of mass m, traveling with a velocity v, strikes-l y:9lfihsjuhsh02 n 0hi s9- a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is los0l20n lhhf:u9shjihs9 -i -y st in this collision?

A 15-g bullet traveling 213 m/s in a vertical trnpsq4acv(6//mg / adirection buries itself in a 2.4-kg block of wood a rest dirp6t4 cs/ qn (ma/ar/vgectly 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 east crn:.bk,6- adkf;egdvollides 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 speed of the cars afvn.rb; ,f-d:6e kgk dater collision?

  A 1500-kg car traveling at e-q,gmwc *7o8 3wyrum90.0 km/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- ,7gw *yeouqcm m8r3w. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves e c7l,jn6yk+*t 8,vb d7fmrvv yast with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the, mjdyc 778,yv6n*+rk vflbvt magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North withj1 j.4fke ig/j/q vi5q a velocity of 4.0 m/s. It exploeijgvjj5iq/ f1 kq4./des 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 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 szzr isf:m 8x b(r04n3nits at x = + 21.0 m. Where is the center of mass on the x-axis?(xnfn rb834mz:0s izr

  The center of mass of a tws9r wr;gvpep78i2 is697oge 5 ) glxsio-particle 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 second massgpgs6 w9 2 ;ol59)rxsg pi i8vere77is of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0) 4mb4q* 9:m nbtzcryafbx2 47+ k3ugyx, 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates o4ynb7f32qz xb9utm:rgcm*4y ba x k4+f the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate0 kfv( l;/jkp51lm1 bli. dfcqd at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whatp1k5cld1 llf/ij 0kfvmq( b.; 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+u duxnnr4+v1-b1wlm is positioned at (12, 0). What arb+u11 4v xu +l-dnmnrwe 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, 0)?

  Use Table 7-1 to calculate the position of the CMazwu9 sh 7tb- x3x)pr dw54fc2 of a whole leg including the foot when thh - x9f2wu4r3sw7dc) 5btxz ape leg is stretched straight out. Assume the person is 1.60 m tall.