What is the SI unit ol sal4:0dhs p0f momentum?

  When a cannon fires a cannonball, th7g7vyt/1nya kz dp8s(e cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at )yada 9/c6b1lh bz bwn(r2o9aconstant speed. The car is open drbanlw)y6o(1/z a9a h92bbc 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 sle6 f pfjyh6g)xwftc0 c8 5u3ouamr48f, d while sledding on frictionless ice. What happens to tf 688 muyctfxaur 4 wp50)ofjfg,36hche velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They a d+ i9hl2cr4gzre thrown 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 l9d+2rgz4hic . Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How p7+vkuh wph*iq im4c6 :hsr8*.gpj9lwould you represent its kineti * .mi:gplchuhkwj sr6p * q7h+v4p98ic energy in terms of these two quantities?

  If you pitch a baseball yzq t0h97xuq6with twice the kinetic energy you gave it in the previous pitch, the magnitude of its mo6qt9u7qh0yz xmentum is

State Newton's second law in terms of momentum yxi)akgfl(0 t2tsdi(g4qhv6 j+f+.d.

State the law of conservation caf6gw- ig78/ rl wiky)*jk1sz9 g5 i4vebql8of momentum.

  The area under the curve on a Force versus time (F vs. t) graphjwakw bw.8 j(6 represents

  Which of the following is :2yl55 b+f3adbdc aqe an accurate statement?

  A small car meshes with a large truck in a head-on 870nbm tp7lf zcollision. Which of the follow7bzp0m7f ntl8ing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red4/e qv)yjuh9x gq.uxm8h -.nr and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. xj rm.qhux4)8e-g nvy9u/hq.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 of 4 m/s, collides with a stationary vgr jo+q)r,y,-cr4il bowling 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 magnitudijrv+ lcg -r,qyr)o4,e impulse during the collision?

  Two objects collide and bounce off each other. Lipyda zc58es;)lnc()i03 fzh t5 q,kebnear momentum

  A 3.0-kg object moves to the right8bg;ip1;)fee ,x ;ur bfpu+wg 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 statement ;brupgux,; 1ege 8)b;+f ipwfis correct?

  A 100-kg football linebacker movi8lkj( +8wn nv jghqp-oq, i ao0v15cf2ng at 2.0 m/s tackles head-on an 80-kg halfbacki8 w2v1 noj5+ qhcp(lgvf jqk-8on,0a running
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 the folggsj2st3+ /7 ) ef. m3,zcqhszi r guzcw2u.y*lowing statements is true abour3* q/z2 tggm7y+2ghzsf.iswc 3e ujsc ,z)u.t kinetic energy?

  When is kinetic energy conss3d u(2p jki*werved?

  In a game of pool, the white cue ball hits t m-l (hek.o* kxbhmk.6he #5 ball and stops, while the #5 ball moves away with the same. hbm(o.k*- h6e mxkkl velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with ysoa5gu, -k7 pa speed of 6.0 m/s collides with a heavy exercise ball at rest, the bg75op,- suyakeach 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 colli;eg, *3jgp 4 k(lq kadrs3x2musion with a stationary bowling ballkr dja4gp*m3xqe,(uk; 2 3g ls 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 head-on elastically orlu .bglo72,with an identical ball at rest. What is the speed of the initially s2gru, o.7l boltopped ball after the collision?

  A very heavy object moving with speed v collr+;cxw. vb hmi h9h0:/ihc-igides 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 .wc/g m0 chib 9h+hx:ivr-; ihcollision?

  A very light object moving with speed v f* + la4ox jhreyzkp7e,r4/3ecollides head-on with a very heavy object at rest, in a frictionless environment. The collision is almo e+/ pklr,fra o*jh44ey7zx e3st 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 with a yellow bal v1.x;. eetoa wjabqa/t-dy f:h3o,6fl of equal mass moving with a velocity of -2.0 m/s. What is the ve.1f tt3qayfw6: ex. /ea-ja,obodv;hlocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on wi)bvt;7mxk h1jiz7 h 42ny 8,lbon uh;ath a very light object moving with velocity -v. The collision is elastic, and there is no ,y1 nmjlo)z7i;;nh2uh 4b b 8tkh7xva 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(5cvyqyn /.jgdd)1x w, gqk)e conserved, then which of the followi ekv cq,xj1d )g(dyn/.5)wyq gng statements is true about kinetic energy?

  Two objects collide and85oe2/mf r inj phsl)co*lg10 stick together. Kinetic energy

  A 3.0-kg object moves to the right aevyns q*1fs i/)*99;fbwvm ek8bmw;pt 4.0 m/s. It collides in a perfectly inelastic99vw*m)ispn ywek*b; /v1; fbqs f e8m collision 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 colliu5 h-81ro h3nuf ymce:des with a large object and sticks. Which object experiences t5 u8rh1n3 :fohymu ec-he larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at a 6n ev zeq6,q:x$35^{\circ}$ 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 ancc,qt1pr s.doh k1qx,yc: c9-d m. Which of the following statements is fals,9c1 , sc1cqkhx. p- ocdq:rtye?

  Which of the following5far+.tbo gdjk:14swr 7t 3zp is a false statement?

  Tightrope walkers walk with x/h0dbfk:4 .gb pan;r a long flexible rod in order to

  A plane, flying horizontajl1 g +apkp2-blly, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb f b2p- 1jplagk+ragments, just after the explosion

  Two cars collide head-on on a level friction-freeo9 i ;i3rov1rz road. The collision was completely inelastic and both car 1 ro;oir3z9ivs quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of1trh1b.oa 4rp particles.

  What is the momentum of a 2000-kg truc6*k kpcm o9b6fk traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magni81pds7 q*jaxya2 s6igtude of its momen16gs x2pja87qi ysda* tum?

  A ball of mass 0.10 kg is dropped from a heighlmuhs j* 1eh,qi5f 6ch9w8u(v t of 12 m. Its momentum when it strikes t1uq6 w (e v8su*f9i,hch5hjm lhe ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wit rt*ugk5:md k1h a speed of 25 m/s due north and the other moves at 15 m/s due east. d5um*k: 1gr tkWhat is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally a hxxm.c/w6lm/t 30 m/s, strikes a wall and reboun mwl.c h6mx/x/ds at 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 str,:hz pbnvz +h4uck by a racket causing it to rebound in the opposite direction at a speed of:hph 4bn+ vz,z 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the bsu( vnwtm9+/z3)o t mvaseball) is placed on a frozen pond. The machine fires a 0.40-kg basebt3 (ts mzunv/m9w+)voall 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 jn dax1sb t0of.ic3./outside the space capsule and is stationary when if 3./oa.x ntbdc01js 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 appr*bi+ ne+jc ;azoaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is t;nz ai+*b+e jche 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-kgmmbz,9 ix l-xvh6gp 9 vv:gh)- mass), who is 6ghvv:v b9xz l-hmxm g,9 i)p-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 m7b j ahr(zz)9o3wwp .loves to the right along a level, straight road at a speed of 6b. ozz93a (jwlh7) wpr.0 m/s. It collides 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 into the rear of a stoom ls*jqj3;(h t86 nrhw5, (fgx b3ujkpped car that has a mass of 1500 kg and they stick together. What is the speed of the cg mbt(jr* lxq5shh,o(8juj6 3w3f n;kars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast a6(hzdt, bhwk0 long 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 released. What is the speed of the two , w(hdh kzb60tcars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction onsos8n*rv-c 7 xgv+(nj a horizontal track with a speed of 10 m/s. A 70-kg stunt+ gss cvnro*-n v(8x7j 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 at the rate of 0.80 m/s (with res xvp 4 i+w,kb.cayg1n1pect to the log). With what speed does the log move, with re,iav +b4kyp xcn1g .w1spect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly incrslub.3 paghgh) b:k98eases to 15 N and acts forah hbbu:p 89 ).sgg3kl one more 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 the objeg5d6yd 7sm /xh*1tfkhc vwt44 ct's change of velocityxw g4/5cm74fhhv* tsy6ddk 1t?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wa:v7kbqwz9 * ,m kf2bkhll and comes tbw:m7 v 9kzk, fqkb*2ho 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 the 83 ormnkqc3;f ckiq naan*767same path, and at the same speed. If the bat3incnn76qam8k q;7 *rkoafc 3 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 ball r jr zceh +xbwm81;-it6dm5;uq ight before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision between zdr;-5 um1jx ;bcq8imwht+e6the 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 masg9ip ;l) xi8sbs 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted opg8 bi9lxi;)s n the machine gun mount?

  A fire hose is turned on the door of a burning building in order tbd.9wcvs, 4mho knock the door sdhvc,w 4.mb 9down. 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 the rate of 120 kg p/*f 8ezgv.s l 2 9zja.rogwis0er minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on thei0 j92.g*oseg8z/vraf s.wlz ground?

  A toy rocket, of mass 0.12 kg, achtf1; 1p(c qsys fgv-yq/ga93cieves a velocity of 40 m/s after 3.0 s, when fired stract;/vf3sp9-y1 g y1gsqa cq( fight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are in6gel x;szoan4,vudh1 j( .e ,oitially at rest in outer space. They push each other apart. What is their separation after ,n1s,gd(ou oaz;6jh. e vxl4 ethe lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It6x5 2g8q8 sb4 dctm2d7 6qfs wubgn3ah 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 kine x2g4 hb3f56q 6qasmus7nwdg8 c8t2bdtic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 mfgi -7f ltf1mm3r,ypp(k e9f//s in the +x direction makes a head-on elastic fg91mt fp -,7fykpre( mf/ l3icollision 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 00pc/3i+cyboo/w u xwfired into a 1.00-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 the block righ c0x3u/0ocpw/ +ybowit after the collision?

  A proton, of mass m, at rest, is struck he.;dz8ycot tzy*rn9l- dhs7 ; lad-on by an alpha-particle (which consists of hzyd97-y*ls dnz; oc;8 tt .rl2 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 neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary bavcyca.0v z 70hll of mass 100 g. The collision is elastic. What is the speed of each ball immediately a0vyczah7. vc 0fter the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s,96gn3r/6c qhr t nozp collides head-on with a 200 g ball sitting at rest. The collision is perfectl ,o9gt6 /rn3hq 6nzpcry 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. f)wv ;;wmxcr(mbw z( am(c;u9 It collides head-on with a 3.0 kg mass at rest. If the colmw;z 9fwr;vu; (ccm(x) abmw( lision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spee4o evj1v5yuw /d of 4.0 m/s collides head-on in a perfectly inelas4y5uvje v/1 owtic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling j*n,y 8u-2inlckxb;ncw40vfwith a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fractionxyjb;k-n ccvf n2nw,* 4i 08ul of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries its(d9)qs5zc;bevoe0 nq kp*sj 8 elf in a 2.4-kg blocsnbdp vejs q)k(*850z;q9o ec k of wood a rest directly 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 collides with a 3000-kg car travelix7pg+ i+jwet 85cha u/s:vr(sng at 60.0 km/h south. The two cars stick together after theu:sr7cj(+ e i5s8hwg tp va+x/ 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 collidca/ rpw2j* odwj.3* ppes 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 direction of motion of the cars after colli/.pw2rjj3p*dp a* owcsion?

  Two objects move on a level frictionless surface. Object A moves east wih a luc15g ;z:wrk7a4xsf(p:fth a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What hspxwalfr1c: z ;45(ku :agf7is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity o 0pk:ux+v7h3mp4mt ao,pg p3cf 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s;o4gmc3+xp h p3:a mku, 0pv7tp 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 qkh3uzx7x4,m:i x1v0 0n 2ii 2otad ywat the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on theoz 34wyvmuikx,7xnht 0 xidi212 0q:a x-axis?

  The center of mass of a two-p ,u8* 6e x4nr;sj:/i+- soaqlsbtpiddarticle 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 n64:t; * arsju/xioisp-,s+b8edqld of the second mass of 3.0 kg?

  Three masses are positioned as fop6ls5p.dzx3 pllows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2d35lxp s .pzp6.0, 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 (0, 0), (1.0 m, 1.0 mgrj9pz+15r dwb j3(hsa ts,ftl7 6)yk), and (2.0 m, -2.0 m), respectively. What is the locatio,z) p61 tl+js3w b(grr7 9ajf hsyt5kdn of the center of mass of the system?

  A 3.0-kg mass is positioned at svsci04l -i s8(0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.08 i-sc sliv4s0-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 tha f;;sq 16 s kml3z*nv3uzkirx,e5s m8e position of the CM of a whole leg including the foot when the leg is strefx6snkz;5*i3 3l ka e,vus8mq 1rsm;ztched straight out. Assume the person is 1.60 m tall.