What is the SI unit of:0iz;p :as*ntw5zhc h momentum?

  When a cannon fires a cannonbx3nye 3ejo:v* all, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant spee m2mdb1m eh(m8d. The car is open on top. A large load of coal is suddem h1m2d(memb 8nly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a82a9o cdt4-(yda2jg xh sc5gv sled while sledding on frictionless ice. What happens t-( tja8c 4ag22gv dyo5dx9 csho the velocity of the sled?

  A rubber ball and a lump of putty have eqg*w /o6 )r1ym4np 0xjvdye1o2ndsf. bual mass. They are 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. Which objects experieny*d n06ry.dmevp1 s/ong )fw 41x2ob jces the greater momentum change?

  A sailboat of mass m is moving zdv+5yb1 *07xybtfei with a momentum p. How would you represent its kinetic energy in terms of thesex e07bzybt1f idyv +*5 two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the w)vm ptr4f0jz9d5 bz(previouzv) z 49pwdfmj05r( tbs pitch, the magnitude of its momentum is

State Newton's second law in terms of mobtym8 43)b-3a0uy taarot 0wvmentum.

State the law of conservation of x0 do.qa 8uzs5momentum.

  The area under the curve on a Forcee 11(wz n.ol kk2n,runcq/2be versus time (F vs. t) graph represents

  Which of the following is an accurated b2u (;2sqzbe statement?

  A small car meshes with a large truck in ak0bw3 g 4ytau-d7) srr ww.eg3 head-on collision. Which of the following statements concerning the magnitude of the average collision force ia 0kgrbu )3wyt-w. dgw7r4s3 es correct?

  Two equal mass balls (one red and tzjw5 /nt5t ni5he other blue) are dropped from the same height,t wjntn 5iz/55 and rebound 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 at ize0w1pn c7ua z. ot*ag*:2 bkuzs05k a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ba2kgna b u1soiu5.c ** ze0wz0kp zt7a:ll moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Lineh lxvdbo+-q30 ar momentum

  A 3.0-kg object moves to the right at 4.0 m/(j:,j oheofy h5*5ln js. It collides head-on with a 6.0-kg object moving to the e yloofh( 5hjj:,5jn* left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles)snrume2f 7cpz xf 407qa01;h 3a proq head-on an 80-kg halfback77xqq1ea0)ou2crp 0s f 4mrf a; 3zhnp running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then whichsi2u d,rbpu ix*9/n,i of the following statements is truexbi ,,nipu/9 *2dursi about kinetic energy?

  When is kinetic energyr4frfz8 3 cb cnm x:l/53u0vfp conserved?

  In a game of pool, the white cue ball hits 7+ 6yp uf v)4x(urggimthe #5 ball and stops, while the #5 ball moves away with the s4 ifg)yxm pg6ur 7v+(uame velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collidesccvy( y qf+an232 f xbqo,0cffh-nq /; with a heavy exercise ball at rest, the beach ball's speed after cfyfh,xcaf2qy+/; (o qq cnvfbn032- the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides ia44z 6qfx(tsrj b8i 7un a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfe4 f7rj i u6(xtq8b4aszctly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collita.o,)7 m: fze rpd4mm gn (4h5fv4hobdes head-on elastically with an identical ballvm4nbm:7a 5hop) m,dg o(4tef.4 hrzf at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with spu i3or*/ bp:xseed v collides head-on with a very light object at rest. T:xp 3/u*oirsb he 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 head-on with an4z ).;x; y7dd8upri z t)cpjz very heavy object at rest, in a frictionlep)zzp)yr x; 84 ;dzuc7dti.jn ss 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+ssw4)mtxt 5a head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What ist) + xsm5t4was the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light ojk k7nvmm: m80bject moving with velocity -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 collisionkm 7nm :0mk8jv?

  In an inelastic collisicwfca ,n:z2 +con, if the momentum is conserved, then which of the followfc+cw2,caz :ning statements is true about kinetic energy?

  Two objects collide abc928/zw., ol ir evxaitiw 48nd stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly (ftx b4fsg *fs j4+/7o2nnh juinelastic collision with/4f jx n b2j7 +s4stof(fugh*n 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. Which object exper gpr/uy/ikwxwq, 99i2iences the la/k9y,uri wx gq/pi2w9rger magnitude of momentum change?

  In a game of pool, the white cue ball hits,jw yr1 ,ijfu7 +h*gjm 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 foll2osgj82jl9cz*j 0le:y4 drymowing statements is falsj2j e gc l0:9lzoy*dmr8 4y2jse?

  Which of the following 9cyl;nv djxi4 .i5rt- is a false statement?

  Tightrope walkers walk with a long flex5 4ghx5ryn gw+oqg- 2aible rod in order to

  A plane, flying horizontn1 11a+gulu fvxc4l1zally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb n cl vuz11x+uf11 gl4afragments, just after the explosion

  Two cars collide head-on on a level friction-freed/ p3t jo210k+ r /of*go7xyz:g yaubn road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of masp 2y fx*/zyo7t:a+n0dbu 1 ogr g3ojk/s?

State Newton's second zo1l skw sayv w ey.:fvk,/u-y)q1)2v law for a system of particles.

  What is the momentum of a 2000-kg truck trz uhj9h)/-d spaveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20r,e8bwf )ke ad66ag -z m/s. What is the magnitude of its momwdekg bz)8,6a-fre a6 entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum wc 0sw, ayn)p6zj*ruolxqy* 1ed0j 0b1hen it strikes the ground 1sp yb*jl*u 1njr6xc0 0dzq ,w)e0aoyis

  Two identical 1500-kg cars are moving perpendicular to each other. One move2.pi nsg /tbp3s with a speed of 25 m/s due northp /.bs2itn p3g 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 m/s, strikes a 6ecfno*u pix (c- 3:bwwall and rebounds at 24 m/s. What is the change in thoiu efn b 6cwcx3(:-p*e momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 8lx63i18n oopyq ulr 712 m/s, is struck by a racket causing it to rebound in the opposite direction at a spe3i6 yuo7o8l qrxp8ln1 ed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is plamq q:) 1q4i8tvye nka-ced on a frozen pond. The machine fires a 0.40-kg baseball with a speed o n-tqiey :q)qvak 18m4f 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 outside the space capsule and is st f d*dpt3ko)s*ationary when the tether line breaks. As a means of returning to the capsule he throw**p3sfdk)t d os 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 5txg unqwl :(8/9nv. av.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum gtwqa unv8n/ l(vx.: 9of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at *wqzvh 9-q*+9zmm5)u ussyno 4.0 m/s to greet your friend (40-kg mass), who is standing still,5sqsz+-z*)v9hqyw *uummo n9 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 right along a level, straight road at a sperby*av-x /0amed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. rmv0a yb/x*- a What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s oo -p1mx28cxr runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What1c2 8-oxmp rxo is the speed of the cars after the collision?

  A railroad freight car, mass0 jbjpt;ul9 y41wa*qv vh6v;d 15,000 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 brakes released. laj9d;p1q*6t u;vvbjy w0h 4v What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictf* flfi5q72a7+zkdek ion on a horizontal track with a speed of 10 m/s. A 70-kg stunt man k*d2ek af+5fziqfl 7 7drops 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 1 y:i3-aiv-vgfnzj,y 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the logi :v -nvi,yjz fa1gy-3 move, with respect to the shore?

  A 4.0-N force acts for 3.0 x)knak25xzxce:v ,mn b2h-5b n8 i.ggs on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to txn 5b2)n mh.: kx,xcvzi be8gk a2-5gnhe object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the obmr n3z6(gmxqxxub i7im+,9e :k v n4r,ject's cgmnxi74xn v,96r+ex:r3zmk, qimu b( hange of velocity?

  A 2000-kg car, traveling to the right at 30 q / jnz0,3ypo)p :qkhsm/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force th zp3p:qos,q/ jhy) 0kne car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit ( h9:zfzfxyao 5ft:wz3u,x:xw5 q;jr the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.1faqx x9z 3::zywzo5f (fr:jh x5u ,w;t0 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 beforo+rdomev/r ge1 0g 9-re and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collisi9/vdg rr0o rg-e meo1+on 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, with a muzzle y z: z45.gsys epw4)vieu; g2xvelocity of 750 m/s, at gusye s )p4exyv5.zgz24:iw; the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in ns* ;m..u9oj+nac q )4zii6r9bs pipjorder 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 watni9+j;z) us 6p *.4b9sqma rp.c iijoner doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute.n 1tvyh)dz:, dwo 2l2vjx3hs* It falls 3.20 m to the ground. Assuming the water doesnzjh22yt * o)vsd3xvwnl d ,h:1't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 ))wl; nqq dc (j16olhom/s after 3.0 s, when fired straight up. Whatoq c ln6d1o );wq)jlh( average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 +jp (la r5gg;b)g. yqakg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astrlbgyr; g5j.qa)a g+(ponaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collidese0wb4si :kiy/ in a perfectly elasiw0s :bye/4 kitic collision with a 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 i ka:.oni9cu nj*+krd1n 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.duikkn9onjc1a * :+. r10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.d g roe eq70fgg+/koye,(u w*4sty;r .00-kg block at rest. The bullet emerges (the buy*.eewe7fd gu (yr +kg0/,og sr 4ot;qllet does not get embedded in the block) with half 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 alpr-j-* viitf(qo fwf;2 r;z 58x is(aelha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed w -2e;rlrfi 5-(fsz8t;jq* f(ovxwaiiill the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/sn. b; b fx*1g h2xs4q-*qoetaa collides head-on with a stationary ball of mass 100 g. The collision is elastic. Whaabxaqq 1-f*txb ; o 4h*n2.sget is the speed of each ball immediately after the collision?

A ball of mass 400 g moving towav 2 boea70r5n1u ttir :z.bx,urd the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting ati1ro0 bt7rb :5uaxzn, u. 2etv 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 with a speed of 5.0 m/s. It collides head-on with a 3.0 kg u9 )d;vzq1o xb+. xomvmass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collisv1o;x u d+b.o9) zmvqxion?

  A 2.0-kg mass moving to6r+o (f+ee jgq the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this co fj6+eerg+q (ollision?

  A car of mass m, traveling with a velocity v, strikes a parked statiqkkl q()lw79c on wagon, who's mass is 2m. The bumpers lock together in this head-(c7q9qll)k wkon inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling ib,,xu (p6-qkl xr j8a5xjek33k c4fl213 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/block combination moves vertically upwarxx -8jc,lp6,fa3i4k rk 3e5b(k xuj lqd.
(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 travelim,vw6pprq): / wsxx**pm+mh dng at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after thep *w wsmh6pmdq+xv,*) mrx :p/ 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-kg car trav uijy i(n.it oi7s1.(8excd6reling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion o .t 6oiy (r7ii1xdjc8eui.n( sf the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east with a4 yhdq8 m01 eww*q)jtz 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 momeqz qhetw0*dmj y841)w ntum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.0g4bu.* a wz6b n.oa2qj 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 of 1.0 kg. What is the velocity of the third fragm2.nuw6.gab 4 *zoj aqbent? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and4giqi +2gp gqc+ qox2b z;,f1y o jj4nxk,c/:a a 10.0-kg mass sits at x = + 21.0 m. Where is the centei1 ck :nf2 4,jaqo+/;zyxqxp4+ 2 gi,bojqggcr of mass on the x-axis?

  The center of mass of a two-particle system is at yy2ls 94zdm l0the origin. One particle is located at (3.0 m, 0) and92yml4dlyz 0s has a mass of 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), 2.0 kg at (2.0, 0) ,h9u0 hk5rgcgq*lsi 2, and 4.0 k,k*rqsc gug2hli 0h59 g at (2.0, 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), (1.0c)rtfx75*p*hj0k ad2kr8gv 38xa4ie dx lw)g m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of twr8xcrji*g30g ad4akd *h2x8 ) e5vp 7 tfk)xlhe center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass isavx qvp) k(d92 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 being lovpdkqx 2)( av9cated at the origin, (0, 0)?

  Use Table 7-1 to calculate the posiyrdo0(j3)b *cquxz5y tion of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.6b5 z )c3uy0qy *xr(odj0 m tall.