What is the SI unit of momqxg9z0( fsf d:entum?

  When a cannon fires a cannonball, thvr(/baa9 : baa ;vcjwqx4z -s1e cannon will recoil backward because the

  A freight car moves along a frictio b) (klmbi /c(ofabw:,xtqb ay+-(q8onless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happe:tw- + q/x(bm)b bb(8colai(,qko fyans to the velocity of the car?

  A child falls sideways off ayd;5tkp n+digl2y/p( sled while sledding on frictionless ice. What happens to the velocity of the slytpd ig52 d+/l;n(kpyed?

  A rubber ball and a lump of putty have equal mass. They are thrown witd- zjrd.n,44k,n foq(f ,ustoh equal speed against a wall. The bkd,4 , jorfq 4tsn(dfuno,.z-all 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. Hd 5du43 p1 *gdxwae*0s:tscwuow would you represent its kinetic energy in terms of these*dptegswudc: 3 d a40w5*ux1s two quantities?

  If you pitch a baseball with twice the kinetic energy you gave ikod2v9n +haw9t in the previous pitch, the magnitude of its md2wkho +a9nv9omentum is

State Newton's second law in tescqm.j5n sfpn g9o+y h, 5p31tm0qa4u rms of momentum.

State the law of conservation of mxo5mj .ii em4.omentum.

  The area under the curve on a Force versus time (F vs. e w f0h7 e1q .i-jd9kd(x(xibqt) graph represents

  Which of the following is an accuri7p9j q(+yspgh/w e1t ate statement?

  A small car meshes with a large truck in a head-on collision. Which of72q,n2m8j k*wm n 4xshqnoj;h the following statements concerning the magnitude of the average collision force is cor nhmjq qnjko w;82hm4nx7* ,s2rect?

  Two equal mass balls (one red and the other blue) are droppedd83gw do:1c8kihvy i h+pgth 9si343d from the same height, and rebound off the floor. The red ball rebounds to a higher position. 3wdts i vhd18o:c34i+iyd39hkh g p8g 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 qex la svgk8ci8l xi1.8e)g(4of 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. Which obje)c8q(s. ali8g4 x1lie 8xv gkect experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each othufu/n xhu z y0ydo wcl2: j-/u2kxu8nq(8;a5oer. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on witm/ qqth,:.ml ch a 6.0-kg object moving to the left at 2.0 m/s. Which statement is q,/mh .:cqmltcorrect?

  A 100-kg football linebacker 4gnol.;mmoxpml* t udwm3k3yx +;6, xmoving at 2.0 m/s tackles head-on an 80-kg halfback r4g m*,x;3 3tkx+u6x .ynl pmodwmmol;unning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which ofio*cr sk) r i1,dctn/; the following statement1o*;s),c t i/ crknrids is true about kinetic energy?

  When is kinetic enerk1lhok ,jjql9jn0/7 / 0,tlktg din/sgy conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 ( c,*a/ do/xeqjv9wef ball moves away with the same vel ,wej a/v*cf qdo(/9xeocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a s46ubpsn-( . lmrqxi+fpeed of 6.0 m/s collides with a heavy exercis6num+sxpf 4-(.qiblre ball at 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-o (v7 gsx- qfl,6x,sequn collision with a stationary bowling ball in a friction-free environment. If the coxe ,-uqgf, lv7xs (qs6llision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0ts0/p y 4d2xp6bu 0i(c5duixn m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball 5cb 0it dxi ps204xpnd6uyu/(after the collision?

  A very heavy object moving with speed v collides head-on with a m;mew /us8q) lvery light object at rest. The collision is elastic, and there is no friction. The heavy object baem )wlm uq;/s8rely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides yiuq624ddg+6f z)ngphead-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elad4uzyp)g 6+dn g6 qfi2stic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s col.b :cmzv d0t9tt,lw5z5uhgn/ lides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. Wha5wzd,gct.b5 z/u: m n9 0hvttlt is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocb-jv z-h nb037 q7it/ykt9h jaity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and thernt-t-zi h q3h0v a/79kybj b7je 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 which of the fo )obuf fpq8pv. 07c-collowic fv o-u.b7p8)focp q0ng statements is true about kinetic energy?

  Two objects collide and stick togethe8b zfyxme r 4t;pbib3,/41jfur. Kinetic energy

  A 3.0-kg object moves to the r/f 7r8; r +vhzg lnju:hiy/df8qx/k1oe2*cub ight at 4.0 m/s. It collides in a perfectly inelastic colri8l1u8//h khnyg;xd cerzfuv7/j +b* :o q2flision 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 alhpnuw.( +4r/r+nu i1uu.m jl large object and sticks. Which object experiences l(i++m lp 4rw1un. /un huurj.the larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 bf)5 ws *+0uwnm/v+vam rqlp )oall 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 unequalug o2asp 9:b+czqi,bu6 ;bx6w masses, M and m. Which of the following statements is fals+,uq6b6;9og 2iza psb ux w:bce?

  Which of the following is a false w1bb1e px8+yw,9a, 5xtmn jfa statement?

  Tightrope walkers walk with wcppsmz, , tpu(j+bjhlf:o7 ;hh yh (s9-m2.ya long flexible rod in order to

  A plane, flying horizontally, rethsfb1 f e,03mleases a bomb, which explodes before hitting the ground. Neglecting air f,1 tb f03emhsresistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road.z:lokn/hxo ek:u( (k3 The collision was completely inelastic and both cars quickly came to rest during the collision. What is k: (ozl( /kh:k oxenu3true about the velocity of this system's center of mass?

State Newton's second law for az-;7z seruy3q system of particles.

  What is the momentum of a 2000-kg truck trao z lo-g0(ciofo 1-j5 xffv*)nveling at 35 m/s?

  A 1200-kg ferryboat is moving6+r)chdi8y xe*3ihpd south at 20 m/s. What is the magnitude of its momentum3p8c+hyrixdd i*6 h)e?

  A ball of mass 0.10 kg is dropped from a heig +vgw 1b+cq4m*mr qj,oht of 12 m. Its momentum when it strikq r,gov++*m1qbw4 cjm es the ground is

  Two identical 1500-kg cars are moving perpendicular to each otha* 4)0pjns,kdat6khuej3 r)h er. One moves with a speed of 25 m/s due nok, 3r4e0shda6)*jatpk hj nu)rth and the 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 mbg8n76m0yjh sdd, je9dosj9: /s, strikes a wall and rebounds at 24 m/s. What is the change in thejgj9ed,m9 d6s7:ojb0sdy 8 hn momentum of the ball?

  A 0.060-kg tennis ball, initial:jvxpocof8 88 f qg(iyi88 y6tly moving 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 momentum of the balltp8i y:6y8f8( if8v qo8j gxoc?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pwknwm ;gp+x)loo )9:q ond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizon)kn9;low): wgo+ pxmqtal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spaceind7fw 0l jl99-walking outside the space capsule and is stationary when the tether line breanwfl97 j0l9d iks. 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 momentuh-ai8 m iag3v,o/uq9gm 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. What is the magnitude of the large object's mq9i/ au,8g-hvm3o ai gomentum change?

  You (50-kg mass) skate on ice at 4.0 m/s sz,ttwcqhc;a1 )+ci;tu rq9* to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with qt* cs+rhtuzw t c)aqi;; ,19cwhat speed do you both move off together?

  A car of mass 1000 kg moves to the right along a lnek 8np380eof1e 0qm.y7dbrnxi/: soevel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycl/e01qbkf 0d pxnn .8smi: no8e7ey3 ore of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling 1ai(qqil3h az hl 8+x(at 25 m/s runs into 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 collisihl3 l8 qiqha(xiz a(1+on?

  A railroad freight car, mass 15,000 j t8 :jlc5opdf/x l9xjcz 7r8dxki+. *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 and with brdfprz 7/xjjcx+9co8jt5 k : 8ldx*il. akes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizobgiui3-gtu hilpc d. *:ms3u-5s+-k mntal trausu3.phg lk d c-i-u bt*smmg:3-5 i+ick 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 happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with res/ i(yw*o2 jqzu6 ;ivfupect to the log). With what speed does the log move, with respect to thzu(/*ofjuvw6ii;y 2q e shore?

  A 4.0-N force acts for 3.0 sq7.2jy vl(d(ef k8vyrckko 3) on an object. The force suddenly increases to 15 N and acts for one more second. What ie) v87j3drk (qokc.y2fyl(v kmpulse 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 ob m::0v4tv mrg4i g9wxcject's chang4wiv g:t49xg mrv:0cme of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall and ;tgf8: ptq crukng22*comes to rest in 0.20 s. What is the average forceu k:2 *c g;t8rnpqf2tg the car exerts on the wall?

  A 2.0-kg softball is pitched to y.u((zq1w :k tj-ief g:wobgut 4a4yl-ou at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was ww g4t -.jy ki(g:l1f:4qo-uezua(tb 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 before,qlkz wmt *ge7v 9vuyn18b1 1d 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 average force exerted on the tlg9u w1d81e vny v1z 7b*k,mqball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets,thdc j1164u ddkmt)t1 with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the avera)tjh1d t 61tukdm41cdge force exerted on the machine gun mount?

  A fire hose is turne e bp(h9dzse3)d on the door of a burning 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 hp) bsez d39(ethe minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate om fc2zk/b.qt 1f 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground.2f cb/qmzk1 t?

  A toy rocket, of mass 0.12 kg, achieves a v9hg(usfvd0+ (qr.f3nafasq c5.7ez (z+qwpuelocity of 40 m/s after 3.0 s, when firerg nzqs3. eszfu7.u+q cw9v0f a( (5(a q+dhfpd straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, ar aqav;ogfj f25 ,dy3zr4 t:6eke initially at rest in outer space. They push each other apart. Wh;kqtge z4,f 5vay3of6j:2adrat is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of ey)(ao;wwe,wzr)dw y1jl;+ 9v , fgeb2.0 m/s. It collides in a perfectly elastic collision with a j e y;y(wflowvwew1d )r9,,ea+b) z;g 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head-on7b3sf + ;zfgrc i8(irf:busjpxi 89,a elastic collision with a 0.15 kg objecf9 ra8,uis 8 pz fibsj f:cxbr;7i3(+gt initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving d:j4gh d*w- fnat 300 m/s is fired 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 *fd:- 4dhjnwgvelocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which ++e3a*xnsnz hbh):1zzfm: -obzd46 c5qxcswconsists of 2 protons and 2 neutrons) moving at speed v. If the cez3zs z 5cb -zw4n+omsdac xq1 )n h6*:xb+h:follision 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 movingtki2 dljd . 96q hgwh)3rd9+feih(m y: +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after : i9q)twr(ilyd hh edm296d f3k+g.hjthe collision?

A ball of mass 400 g moving toward t j20e4kpbeqj7c0zen ggm .-a5he east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectq04z k25 jneb.e7pcgjagm-0e ly 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 53ta)3finiqz;b)vo7z+5 cb eq .0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, wq )nc3o+iiz)z avt 3b 7qfe;b5hat 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 fd1,.vdr w 9kv ds1av)6-gvzo collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic ene) d,k.oavf9r- 6dgdv s1v1wvzrgy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked rl;xk opv 7v1aogor; q; 3isp64ubz 78station wagon, who's mass is 2 7okorq4s;;vu3 vp7br6a;i oxlp 18z gm. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical directig ,k k akwt9 a7br7 uin25ois1fl+g)z)on buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combinati9ikgg s5 l)kfra27 1o) ztnk+,ub7awion 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 3000-7q)s*.1 p .mwi dyzgnwkg car traveling at 60.0 km/h south. The two cars stick wndg )mq *7p.w si1z.ytogether 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 3000-h2a u6 wi .e7ag;eojr9kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7.a9io6 a;eruh7jg e2w-1.) What is the direction of motion of the cars after collision?

  Two objects move on a leve,0r;i 6q0x ewbnd5 cc cmeg27il frictionless surface. 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 th 5wq0i7dre;encmxci,2c 06g beir combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving tov slp2wvdx.z8, 0ymi8vb)r9t ward the North 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/st8bm.l2) p , yi89d0vxvvz wrs; 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.ql300z6wp-hq na;rosid-mi 1d *5 lmp0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axis?ia6r 05*qh qdmw3o-- 0ll npmdi;pz1s

  The center of mass of a two-particle system is at the origin. One 7fx+r/ll8t(ez,0zpow g )q0w* o ertj particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0toe*,qp lg 0f+7 owz)t/l0xerwzjr 8( kg?

  Three masses are positioned as follows: 2.0u3kqaa) 8t mo2 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determim2q a83u t)okane 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, 1mra- bdgns9- t4su5q, .0 m), and (2.0 m, -2.0 m), respectively. 4rbtng-9 s-mus5qad, 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 w7rcn 5pxm.j( l3/zgais positioned at (12, 0). What are the.pn(rxjwma3z lcg75 / 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 r6ilear k04 kes0b-k( the CM of a whole leg including the foot when the leg is stretched stra k-sbr6alek 0 i(k40eright out. Assume the person is 1.60 m tall.