What is the SI unit ofu,v panhx.) dj e/ r.lxcnfnks/, .(8c momentum?

  When a cannon fires a cannonball, the cannon will recoit pa(x e4crnk0qd34; il backward because the

  A freight car moves a7 urinkqf.4tq o6;v6flong a frictionless level railroad 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 velocitqv6fq.6n r ;otkui4f7 y of the car?

  A child falls sideways off a sled while sleddin z7 qh6 bz xqg8+mo, wiogpens;i23.e+g on frictionless ice. What happens tmbo,gq8o6+ qzw;g372.z+xs pehe i nio the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are throk hulpdk5.o910 oks/ei-ik :nwn with equal speed against i-0hn:ike.k 5u9sokdko/ pl1 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. mti(1mxec/wg6x vh(8 How would you represent its kine( 1 xv egmix8mh(t/cw6tic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it 7oqj-iej v d10in the previous pitch, the magnitud-01d7 jiovqje e of its momentum is

State Newton's second law in terms of momentul bbtb6c, 0)lam.

State the law of conservation of mf ,ai2r 8/u currexm-v3u1z 7oomentum.

  The area under the curve on a Force versus time (F vs. t) graph rep ;b u85xnjaa7jqrb (,( b(cd mlto/o:qresents

  Which of the following is an accu z; jeey fy4mbpo-s:49;m,kfm rate statement?

  A small car meshes with a lar mt je;s8+ quc,0bd5kkge truck in a head-on collision. Which of the following statements concerning the magnitude of the average collisd, bmc s8 q0ujk;ke+5tion force is correct?

  Two equal mass balls (one re,x y8wnhbod6gp4 f; z6d and the other 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 impuln;6z,ph84x6bfo gd yw se during its collision with the floor?

  A Ping-Pong ball moving et*(dov/gczl / ast at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces bc (/vd*z tlo/gack 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 bouncev/e 2 1f7jfm8e71fu hms4b wdu off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a-4:pvk(d hkj)a9 ymta 6.0-kg object moving to the left at 2.0 m/s. Which statement is ca9jkdavmyk( p:t)h -4 orrect?

  A 100-kg football linebackl wx-37*d:zd -evm)cjzd7yo ver moving at 2.0 m/s tackles head-on an 80-kg halfback runnd*)zmxcyw- ljo dv3dz e-:7v 7ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisionuga)33d1zif k 9nyvtj*ch )* t, if the momentum is conserved, then which of the following statement*n1 fkz3i3 )adtyjcvt*)9ughs is true about kinetic energy?

  When is kinetic energy consro z/) 8:s4zroy 3xn/l05tvg4zcdq h jerved?

  In a game of pool, the white cue h+vpl5 ikz4av5r73op6 xyg2k wx,-qu ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue b6pi -vvgyq,ax73+r2o55 puh xw 4kkz lall had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 q0(yni ljh+mp,s6ca xl.h,gg zu:w z16 (w u8ym/s collides with a heavy exercise ball at rest, the beach ball's speed aug.+u,qy 6, l s6nxah(pmzh w wg z8i(j1l0:ycfter the collision will be, approximately,

  A golf ball traveling 3.0 m/s t rn+;:qlfsfc 2o the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immcl;nff:+ q 2srediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on ela*kdzt)cw7p5s he kn2+) 8pfyn8c lqrz(t)8 phstically with an identical ball at rest. What is the speed of the initikkw))cfpp hz8yd q *zc 2n8 n8)s+(7 ttperl5hally stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a verye) 5blqgp w.be0 i59na light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the spe.pi0 9 bqna5ble5w ge)ed of the light object after the collision?

  A very light object moving with speed v collides head-on with a vertg z /zm,/8hvwszuw /mf,4to6y heavy object at rest, in a frictionless environment. Thezhmz,tmo z4s/f,v/6gw8 /w tu collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 pi +xxrah1oynr (8b: so+g9 i1xm8 /pxm/s collides head-on with a yellow ball of equal mass moving with a velocity 8rh(8rxoxomppibx/s1 1+ :gx y+ia9nof -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocitv2h.7w 1bdwp)od ds hg)t-.idu5 i- say v collides head-on with a very light object moving with velocit b-d)w -g sdp2.uidoh )tv5 .hs7id1way -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 colladw y g99pp 6qp lh42pjfr-j3nl(g 19uision, if the momentum is conserved, then which of the following statements is true about kinetr(pd g9j9y h-g f4wpqup3 lljnp1a962ic energy?

  Two objects collide and stick togeth. ujaopg-t3y dt ig,93er. Kinetic energy

  A 3.0-kg object moves to theiqww 3321n(llofgc 5wzo c4h .)w wa:u right at 4.0 m/s. It collides in a perfectly inelastic 4( o2 locwi5 g.3h1)wnwcu:laqzf3wwcollision 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 ca 03 uxmez9rbv u52q*:8u etvand sticks. Which object experiences the larger magnituv *u0:ce ar5vzmb9q t 382uexude of momentum change?

  In a game of pool, the white cue b a wdhu5v0dtui9/9cp* all hits 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 masses, M and m. Which of the following stixipv95g;1 wt atements is false? w vtpiix;g591

  Which of the following ispimrb,f-buwb x73c 03 a false statement?

  Tightrope walkers walk with a long fjkhfx1g54:k ziv/ynib,g d3v ajk5t,uy7 q(9 lexible rod in order to

  A plane, flying horizontally, releases a bomb, whh cf5.p*lpb vpy:zn 212fqu9*xzr 8a gich explodes before hitting the ground. Neglecbu*p2hfpvf1l*n9r 8 c x2z:pa yq5gz.ting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Th cxf.aq/ x9qu7e collision was completely inelastic and both cars quia q.c9qu7xx f/ckly 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 y4d(*t2o pgd*qlrvh-tk3pb q(+ 4qnda:qv y8a system of particles.

  What is the momentum of a 2000-kg truck travelingmkzwqsi;w*08y pui f:0im9 7 v at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/gki y ox/+npws74urd83.d +upqf18wbn 0mx-ks. What is the magnitude of its moment0pwrmk374-1 8+puxx /w8idqdkos g n+yf ubn .um?

  A ball of mass 0.10 kg is dropped fribmkf 0ki5mr 9z63m 1w9h99wouzhco 8n5o+ ibom a height of 12 m. Its momentum when it stiomzbhk w5r95z8f m0h9 ub1mcn6o3i99+ oki wrikes the ground is

  Two identical 1500-kg cars are moving perpendica*,y6fat 9zgya sg8+kh,jh:yular to each other. One moves with a speed of 25 m/s due north and the other moves j a g,kfy+ythy*96a z:,g8 sahat 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travf: -ivv4 znvrtni+3cvgq e-e.;h9 /byeling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the changzb 9-;cryfvehvn/+.eintvv4ig 3 -q:e in the momentum of the ball?

  A 0.060-kg tennis ball, initially gn c/e5, (3aqnmmo- nbmoving at a speed 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 m (egnn m3mc-5qano/,bomentum of the ball?

  A 50-kg pitching machine (excluding the v*skesos rh,4aamyaey )q /6+xa. o76baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a spe ak s*oq.r+s)yaaahe6 ove6 y/m x,7s4ed 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- /z: *ybtf3lzuwalking outside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammezyl:ub f*z /t3r 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 qb qzq(s2see711 u r:lg l7fea+b )c,oa large object at rest. The small objb7e )qe2g bc7rl s(q1ul sf1o,:z+eqaect bounces straight back with a momentum of magnitude 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/1xm1pwg7f ka1 ra -n4+knxtu 3o cn1v5) -oxdis to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off tog k -maaxp vt1n xg7+3w nxkou1o)r411fi-n5dc ether?

  A car of mass 1000 kg moves to the right along a level, straight roadg 4yo 06osl0iw at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is toyl040 wso6 ighe total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs int::p-cb4 ytcg y -(byyco 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 collisionbp(yby- y4-gt: cyc:c?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a -8 +kodmzxf /xlevel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest anzx kdf-/8+ xmod with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligibl 2 as*y-sf7qcue 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, and lands in the car. How fast will the car be moving after this happensyf uc2ssa*q- 7?

  A 60-kg person walks on a57 z-accrc kxl izle:yfi*:e744b 0o n 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does th4x: e7lol akeic5cz r c -0*bn4:yz7ife 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 t8*mpo. y3z y uwqu02w15 N ando*02zqwy3w puu tm8y . acts for 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 e4qf11t-zp2pm(w r beobject's change o(-pew1tfb z mqre41p2f velocity?

  A 2000-kg car, traveling to the ri6eu.t ;nh*sxyorhy .e 861wbxght at 30 m/s, collides with a brick wall and comes tohe wx*rts8b 6;yy.x onuh6e1. 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. Youkq /3/ xhy ,)cmj-ntzebki2a. hit the ball back along the same path, and at the same speed. kb/-.yqi, km)/xjn2z ehtca 3If 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 ball riz sov( yfcg: +qsvs3*v:pl z:4ght 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 averagfqvz(+s c sg: lsy::zo pv3*4ve force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, witt lxz ;l4m4 fo*coi.e:3m;id qh a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted o4mtfe 4:iziq.xl;d *ml o;3c on the machine gun mount?

  A fire hose is turned on the door of a burning building in order tue/9m9lorr7.m9m4npy k np4 ro knock the door down. This requires a force rr99n 4em/rky lm7upn p4m9.oof 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 per minute. It f ty:ru2rqw)4 sjgwbsggrl78((;r1d talls 3.20 m to the ground. Assuming the water doesn't splas8 lw)2tj(s; d r(uy7gtrb w g:qrrg14sh up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when he-5ndyt/p7*kr;s+wyh z r+avfr ; 5 qfired straig;y pqwt ;hveh/z5k57sy+a +*r frdnr-ht up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are init-j9xapw-cxm +lbj11 wially at rest in outer space. They push each other apart. What is their separation after j -cx1w9m b+jpl1wa- xthe lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collideb dy1 2,9psryes in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the tota1bd y ,psey9r2l kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/sa3fk0gpxa g ;y360*u c9m*jc wb ougb2 in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. Wh*g c6 aau3ok mbj 0gbwy*32ux;9c 0pfgat 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 1.00-kg block at rest. The buagotme .6 okzpw25:-6cqgc1vde5 x3 rllet emerges (the bullet does not get embedded in the block) with h k eez5c.xt c3g:5apgq1 v2 6roow-6mdalf 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-pf3ijhqvg:eu 2vmine+ s* -8g,article (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 the -i3+muv*n 8 :ehg jveisgqf ,2collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on wi,h(xu6h v5w0 72sio1wcn z ldnth a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the co5ozvis6u7 lxw 0n,2 1n(dh cwhllision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collide(dhzampd7/)dvd7-h5t3 v hz ss head-on with a 200 g ball sitting at rest. The coll d(s/ vp -7d)dza7mtdh vh3hz5ision 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/ ehj:a)acwt(w3; ffmz: t1p(is. It collides head-on with a 3.0 kg mass at rest. If the colli ca;p(a mf (tf:twj)w:h1z e3ision 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 wv. yn7 mpqu/64.0 m/s collides head-on in a perfeuvm7wnq ./y6pctly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagcgb0s8 u( nqkx9tw3h /on, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ener3sk8u9/ 0qwghncx b(tgy is lost in this collision?

A 15-g bullet traveling 213 m/s in a 1nbo( cr ugcj;1;gkv( vertical direction buries itself in a 2.4-kg block of wood a rest directlg1;bnc kugc ;(rov 1j(y 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 travelinteg0 q)2:6cupkzx0 i q18 glapg at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is p0 xei6 q ztaq1k0:u8l c2gpg)the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east cobt2c722x9u g6(,b wxo fw8mqjhjg t6zllides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the co zx9xg ,b268cw 7t ojq2j6(bf2twmughllision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface.0szs9zjqb3h, y3 )fl)vc v jr: Object A moves east 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 magnitude of their combined momentum after the collisionsvs:0b,cz yj3)3 j9qfl)hrvz ?

  A small bomb, of mass 10 kg, is moving toward the No+98z:ux sxoc 2*nepr/ /*jfel w rz;rz:m:zyfrth with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and a toex/lr 2sfzm;x p y::w*jnz9:cefzur+r8z/ * hird 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 sis,j0a ewofu7 ,ts at x = + 21.0 m. Where iae, j0s7,wfuo s the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin.v 34c( eaitce9e8s34l go/qav One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. Whae8 gea3aoi l(4v43c/s9cq e tvt is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (k)wwvu9 b*.xix x1vm 60, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.6*k.uxxv 1 iwmvxw) b9

  Three masses, 1.0 kg, 2.0 kg, and 3.+txt;xy jn5 0w0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of ma 0wyxt;j+ t5nxss of the system?

  A 3.0-kg mass is positioned at (0, 8.0), an4 /84nl up-qr9s/hiog2img .xt (zcp cd 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 beg8/ -2ctp4gnxoq (9mhis4czl ./ piruing located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whol4un; .ga zdfq(ev fe)1e leg including the foot when the leg is stretched straight ozgqne 4.a uff ;ed)v1(ut. Assume the person is 1.60 m tall.