What is the SI unit of mo)gycy+u )xkfstl4i ,g-wrjm2 /)t x9amentum?

  When a cannon fires a cannonball, the cannon will recoil backwarc m -w;jqk* f,1en8ouud because the

  A freight car moves along a fric73.awjoip3 ir84;e nfw qdvqtz2 h6c4 tionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into 3 w .h7i4zinv84dcq;p2qej6wt3rf ao the car. What happens to the velocity of the car?

  A child falls sideways off arv4u4q.( ilo0a3 y g+bwjras2 sled while sledding on frictionless ice. What happens to the velocity of swa 0ivyrqga job 324rl(.+4uthe sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equa+7 (falquovc)u5u f9ol speed against a wall. The ball bounces back with neoc(9 v7)+fu uuqfa5 olarly 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-im*wz 1/feo 55 udvwm2f e;pzv 4cnzd :3bt8i is moving with a momentum p. How would you represent its kinetic energy in terms of th 4 m*1-bm35vw ezztd : niuidfef;cz /p82v5woese two quantities?

  If you pitch a baseball with twice the kinel2 c5suy24gi jtic energy you gave it in the previous pitch, the magnitude of its momentu i5ys24glju2 cm is

State Newton's second lawtxi i;begi0: j: (svh7 in terms of momentum.

State the law of conservation of momen3ocf 3u92o8q r1rwjvg tum.

  The area under the curve on a Force versus time (F vs. t) gr) k-n zc-va)rkaph represents

  Which of the following is an accurate statem, ahixqjyr e5e9u3xjw.;5 h465kknlcent?

  A small car meshes with a large trucwl.xvwuybsb0 92 pd 3+k in a head-on collision. Which of the following statements concerning the magnid 3w20wb+lu9spvxy. btude of the average collision force is correct?

  Two equal mass balls (one red and the oywvbtazv 7( s7 5b/lp)ther blue) are dropped from the same height, and reb7 7l bpswv5yt(vz/a)bound off the floor. The 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 at3i m0 pro9rco08x 4pnm a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and themnpoirp9 c3 80 0r4omx bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear m *6z+k/ve0lko 5 bs2ttu eg1m*wvtft1omentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on cc)r 8(o y5u;zsc ebte/) cay,with a 6.0-kg objecyy)cceus /r atb( zoe5;c)c8, t moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football lineba t nb6a(n:uuska6)dl.cker moving at 2.0 m/s tackles head-on an 80-kg halfback r utk)a6las6: n(.bnudunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is 8m2a(ildr w2aconserved, then which of the following statements is truldriwm(a8 2 a2e about kinetic energy?

  When is kinetic energy conservedr ;i-khrr,4hgo0 13rc:d v ddy?

  In a game of pool, the q9zjs2*a 9* ykdxt.z11rx vss white cue ball hits the #5 ball and stops, while the #5 balyx19 qsz av2xdkj*t 1sz9 *.rsl moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball7jo 0al 1tfe2tdkl. 8yw7pur : rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision willld jr.2laf: 0tk7you wp7et18 be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision withooo lbm4 22py( a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, theobloom(22 y4 p speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides hea -) 95eawryyyu+9tqa wd-on elastically with an identical baru a-9w)5 y9qy+eyat wll at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light objeceb(n(i t /fw;st attb wi/(ef;n(s 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 collision?

  A very light object moving with speed v collides r.a (6oe.ub/dvf clz5 x1qqjc.f8fc; head-on with a very heavy object at rest, in a frictionless enz8f6vo u/ qcfbdfx c;.5 .j(1r.ca leqvironment. 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 with a yellow r3dtchys g;qm6*p-n, ball of equal mass moving wit h;g cn3qy-,d6sm*rtph a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v col/o +jt pr.3dzw6 *mqdclides head-on with a very light object moving with velocity -v. The collision is elawqdp6zrmc.j t+3do* /stic, 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 collisiongky+o 7f*pop5 , if the momentum is conserved, then which of the following st+p7fyook p5g*atements is true about kinetic energy?

  Two objects collide and stick together. Kinetic eno, w; gv1-sw5rjxxe(t ergy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly ine zuohr,de9ff5) 3 jw2 5qnc.trw ypt5+qm6.zxlastic collision with5cz,nqyh+q.2 om3)z.t wfujwe 5 d 69r5pfrtx 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 c;x;adv;x9hi+x z ds6/h yb(le;8feo large object and sticks. Which object experiences the larger magnitude of momentum sel ;;xa6; x e(ioh/xc9yh+df 8dbv z;change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at a wa(yawji6 0rl;4f tj4$35^{\circ}$ 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. vzij.7/ - pnjow6nemc, h ggj ;l-6jz7 Which of the following statements is falsn7phjv6-jc j w nzl6 ,jeio.gg;7zm -/e?

  Which of the following is a false statemenv+mj*wa9(d 2jxj m5ght?

  Tightrope walkers walk with a long flexible rod in7 i 8ix ajsw*b;zot*,tx3.p mw order to

  A plane, flying horizontally, releases au f)q -d)alo8w bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just afu )8dawqflo)-ter the explosion

  Two cars collide head-on on a level friction-free rx3cx/ )ljbz2moad. The collision was completely inelastic and both cxl3c 2zmxj) b/ars 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 sy j2ax5h vk 0*qqj2,xwwstem of particles.

  What is the momentum of a 2000-kg tg6.p )v:zi9pnepx8 bcruck traveling at 35 m/s?

  A 1200-kg ferryboat is molxo84k,qilp,,6 s ldj yp ssrt);gv 7)ving south at 20 m/s. What is the magnitude of its mom4 qd, o;6r)lgkjplxi8ss7),t ypvl,sentum?

  A ball of mass 0.10 kqyx 9 6+fag/7pqqhs5 kg is dropped from a height of 12 m. Its momentum when it stx5/9qsf6pqg+aq yk7 hrikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each otheryx+)p0d4h ,lzmp, epi. One moves with a speed of 25 m/s due north and 4ix0z+d ,y,ep)l h mppthe other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, spn(p.uku*4 ekw)g1iq trikes a wall and rebounds at 24 m/qnk).pe kp4uw(gu *i1s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, in,vwsfovj;c61 s(t ac2itially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at tavsc ;w(s6 2,1fv joca speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding thh(5,aq:rq x)8ak trdze 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 dir a,q rx)8 5:daqtkhz(rection. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is sp6)iu*c / zdxwpace-walking outside the space capsule and is stationary when the tether line breaks. As a means of returning to th* /zwcu)px6d ie 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 momnztvwjxk 5h4(v) gx)*) .ztlgentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. 5.hk)z4*t gv(n xl zxv)gw)tj 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 frien0v,1bfz z lt+kd (40-kg mass), who is standing still, wi lzt,0+fvkb 1zth open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kgorjg.e k,;h8g t8v rc1 moves to the right along a level, straight road at a speed of 6.0 m/s. It collides direch,ek1;tcv.ggr r88 oj tly 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 inthc,g v7 j c5wqz7lz*t5o 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 collisiotjq ,5zw 7l5zvcc7hg*n?

  A railroad freight car, mass 15,000 kg, is al)nqgpx(ns);mt1y -y .bo-rfw lowed 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 resty;myo-tqg1xpfb sr n ( w.-n)) and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible fric8ze: b qqw6t.rtion 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, zb.q:8 6erwtq and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on9yba, 6y0d mic qwx0h*(ay:fg a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what spmc9hfy 0(b0:dw* yg6xaiy a, qeed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s o*:1p+3 fdwzqftfy yxvo(h h/7 n an object. The force suddenly increases to 15 N and acts for one more second. What impuls+ozfh(/1vyfy* d 3x q7tpf:whe was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 sk bb*eh4y)3l 5ss+e naeau 6e; on a 6.0-kg object. What is the object's chknb e)e*3 s6el4sa;eb+ y uah5ange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a f5qjcaf:((jp brick wall and comes to rest in 0.20( a:(qcffjj p5 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. Yo x,b4ml-wubi *u hit the ball back along the same p-*mub4,wibx l ath, and at the same speed. 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 table top. The speeds of the ball right bef b d 3h0*y(tk(eoz4 vvxr9:isgore and right after hitting the table top are 5.0 m/s an9:gy(x(t0 szo ivkhd4 r3v*bed 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 average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bulljav-7)x,cccgx 0alz 5 mq0aa ;ets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine ;zc amvc,0j q5xcaxa-0)a7 glgun mount?

  A fire hose is turned on the door of a burning building in order to knock the zq.6,naki.vk.s*zs odoor down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what i *ksz6n. kv iqo.saz,.s 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 1v yk e-n4s:ppgi 0/ 43 .whp0lxr)rffk20 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average for3 w 4pxfn /vsi0k)pr0fh.rpy-4:lge kce does it exert on the ground?

  A toy rocket, of mass 0.12 kg,geql7/yfif1 r thg-h5b*z4( i achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What averagefhg 5tig be*qfy 4 z1hi-7l/(r thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer s): gd 7t5k ;hd1r2vhioq-yvcudczz6; pace. They push each other apart. What is their separation aftiq5 hvdc hr go1kvc:;;zt2u-y 6)d7 zder the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 +fyl*txuv.+ j8- h uvq9wo)wmm/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 tow.jto m-wl h+yq9v +)8*fuvxutal kinetic energy after the collision?

  A 0.10-kg object with a veloci3g 3fl.9ouvw49b horgty 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 after ofuh 9r43govb. lg3w 9collision?

  A 10.0-g bullet moving at 300 m/s is firedszpik+babb dxx 06,qe5 +fv3: 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 right after the dk:ae6+53p,+ isbbfx0zvx qb collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which cons- kygqex(/(n2cdf96 u1 oyy le 85gnyzists 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 neutron's mass equals the proton's mass.)ey-9y d1lf6( c(gxezy q u/nkn2g8oy5

  A 50-gram ball moving +10 m/s collides head-on with a stationarvz iaez/zia r-r2 : ne6m.iqq +u0z5q2y ball of mass 100 g. The collision is ev z/me5:- nr+q6i uia aq22z rzqz0ei.lastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 mi6y mr/nixpu ge+-m x6 f:0* in5eqd/i/s collides head-on with a 200 g ball sitting at rest. The collision isii*:n6xu +nm5q /d 0igrme pi/f-6yxe 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 co* 5e9m g1h2xua,,h bkl/olpws)e9 -(r h amqspllides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses aftb5e (mpp o)mah,*k ,/sxsgq1hu r9 2l9elwh -aer the collision?

  A 2.0-kg mass moving to the east -r9 e noqnn3p;at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a station3o-;p9 nq nenrary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velo/e,mkupv4d)q city v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. v4pked/u,)m q What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling oh6u8wthua i;v(u ) ,dk.fw0j213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/b(wui6 juh8vo0h w,uk)dfat ;.lock 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-hyb r+(ml*q(dvf6 m/ mkg car traveling at 60.0 km/h south. The tw/lmf dmq(y (vb+*6 mrho cars stick 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 kfv-sp*)qy1/ kj2.y 2incwxju m/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two -fyvjisj x)/ ycwuqn1 2*.k2pcars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object Ab (zl kz kc3-yv+bg(7l moves east with a momentum ofzv zlk(g+ly (-c7kb3b 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 collision?

  A small bomb, of mass 10 kg, is moving toward the North with a veloc*g fk (pkw nd lxg x36z/kaatq.-7*+psity 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 third fragment with a mass ntsg.pkx*kxaaw 6 +kl(g q / *zf7d-p3of 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 sitt35 xs mjifdgnt t0gn.f9+dmi k)c.,6s at x = + 21.0 m. Where is tmdig5k6g n t+3.09fcfx.s d,in j)mtthe center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particlev8hwt888h jt* dqht4e7. o wfh is located at (3.0 m, 0) and has a mass o788hvtqw.*h toj8edh4 8w hftf 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), 2.0r1 bko. ,0zydpbtv 4.fd*:li c kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coo 0zbib.:,cd.rf loy 1k*dptv4rdinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, 6 u roech9mi; f,yp6+rand 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), resrm,ec oi6+9y r;uhp f6pectively. 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;6b/;h) kei-za.bhynpsh:d h is positioned at (12, 0). What arp; hyd;h/k-b)z6i.hhsa:bn e e 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 CM oxl8ue v2v g*8m83qx6dpmmj:k f a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60g v3m88qpe*28: vd ku6m jmxxl m tall.