What is the SI unit of momen:mk-ol ; pr t0i8kid*d3emq*qtum?

  When a cannon fires a cannonball, the cannon will recoil bat)qrrm* ow40xo92l*m dxy l 8yckward because the

  A freight car moves along a fxh+3olxz ro+vji iu9 2 zt-*0irictionless level railroad track at constant speed. The car is open on top. A lax0i +ojzuixo v+*h29trz3 il- rge load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictif au.we)6q0n+wo3ni6fqb t ; vonless ice. What happens to the velocit;wq tfnvu3o0w )nfb66 i+ eqa.y of the sled?

  A rubber ball and a lump of putty i94ylit1- xhdhave equal mass. They are thrown with equal speed against a wall. 1-yhtl i9x4di 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. How would you repp-q y- mtoy.-vn,3kvv e -mf5f-jd1rtresent its kinetic energy in terms of these two j, .kv-t-v-1f -yr -n5moqvptef3ydm quantities?

  If you pitch a baseball with twice the kinetic energy you gaveo10wv)d jn viw3y y/(t it in the previous pitch, the magnitudeo3dytvi0v 1j) ( ww/yn of its momentum is

State Newton's second law in terms of moment6.tlv krh;uz. 4c+j2 hx1xlgg um.

State the law of conservation of momentuk dwxv(mi6,ki)i*gk.m.

  The area under the curve on a Fbzme+,q-ts6 korce versus time (F vs. t) graph represents

  Which of the following is an acn1wj4xk) e +c)xa0rdccurate statement?

  A small car meshes with a large truck in a head-on collision. Which of q4hju0w5e) y y(.aambthe following statements concerning the magnitude of the average collision force is correct?jy)abumqa yh(e4.05 w

  Two equal mass balls (one red and the other blue) are dropped from the s8 a-e* 6etgf h 8k98qph)lyauzame height, 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 8e8hl h6tka- fqpu9 )*azg8 eyfloor?

  A Ping-Pong ball moving east at a speed ( )p2r3x s-buakxkjr(2h: mxu of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball move-uujxp(3: xmr2a r( hksb)k2 xs very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each o abky0c3 5mi s0+nh,40zju4hq8 phjexther. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. s gci:v+o olut sqtp8)(*a4-r It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement iss pvo4)igq r- s(*:lut8ca +ot correct?

  A 100-kg football linebac0ud0m. qfjh-tker moving at 2.0 m/s tackles head-on an 80-kg halfback runnt0d mu-0fqj. hing
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 folwruk2f yua u j*fz u5*g3*x 1ekm/9oc2lowing statements is true about kineticu9 *ckux*o j15/w2uf kf garmu2*ze3y energy?

  When is kinetic energy conservfek+w2h:,avv 6 i vv*fed?

  In a game of pool, the white cue ba/m d4j6)fjz m2(r d4n;g xjldfmg y-e4ll hits the #5 ball and stops, while the #5 ball moves away with fxj 4jd 6ldd/y n2mm;mg g44jre)-(zfthe same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with6bfsqph l5em r65 1.yd a speed of 6.0 m/s collides with a heavy exercise ball at rest, the bea q 6l1y.phe65mrd bfs5ch ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the righnokw+82:.v(s, if(vpjr aqb ct collides in a head-on collision with a stationary bowling ball in a friction-free vn(p,w 2bo(.cjfq+v s a:k ri8environment. 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 coluvzz l 0 a9 s1:gl7i 7*7itya39b+serze(kbrjlides head-on elastically with an identical ball at rest. What e k+3 izv g:ay71ilj0b 97le(z9ba r7s*u zrtsis 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 obr;77, a gebv z1r yen0ax4nwz*ject at rest. The collision isxea ,74nn * w1yer;z 0br7vzag 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 y9.gmnbmkhb 12c/w6i fq,w x)speed v collides head-on with a very heavy object at .6q/w k1 bc2bhwxin 9mgy)fm,rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3i 6/ophzw8:2 zos;eng.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the veloch; w62ign se/o:opz8 zity of the yellow ball after the collision?

  A very heavy object moving with v-* xomp)v ytj7: s0i7;s iq1slg-gb zbelocity v collides head-on with a very light object moving with velocity -v. Thq;m*sg-yp:)bxtz v 7ij-7 siogs0b1l e 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 collision, if the momentum is conserved, then which of th +pko3ayq(/ bie following statements is true about kinet kb/ip+o a3yq(ic energy?

  Two objects collide and(z 5r0 u9fnwff5ttnp ( stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It cobt q, am6x.px0llides in a perfectly inelastix t60qbmpx .a,c 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 collides with a large object and sticks. Whiug .c;g9 qb:ynaf pg/a zt/0c(ch object experiences the larcuna ; b9:p0(ag /gytzcq/g.fger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflejx: shk 1n 3av8e-x/mvcted 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 ny mnx71k- q;ez9ev/ rand m. Which of the following statements is falseyq -en91er mknz/7vx;?

  Which of the following is a,7 h*ioz.9ot db.oakc false statement?

  Tightrope walkers walk with a long flexible rod in j1yo7h zf78 ltf4tgl; t:h3 szorder to

  A plane, flying horizontally, releases a bomb, lagez:z:8ag q(a d /i1which explodes before hitting the ground. Neglecting air resist 8 i1eq/a:(:zgzdgala ance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a leveojso69e+tyr3.mluxb blz12 :l friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the veloc9xbey u1oj o26:b +tr3s.lzlm ity of this system's center of mass?

State Newton's second law tuz7euw y519 8ai8lqcq4n;axfor a system of particles.

  What is the momentum of a 2000-kg truck tcj i;(ges-m7mt)ye g6 raveling at 35 m/s?

  A 1200-kg ferryboat is moviux 692joxfft8 ng south at 20 m/s. What is the magnitude of its mom8u6 t29ojxfxf entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when itoeyvssib2u n1 g +8ctt8dq)l,2(n (b n strikes the grouny12(ev,nn 28b8gs+)s c tnbti q u(oldd is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves w vxf2v)mc+ko1ub1:lp ith a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum pv)k21fxo1cvm :u +blof the system?

  A handball of mass 0.10 kg, traveling horizontal2l qr)(qodl l08l h4gtly at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of t llgdo2hq )4l(tl08r qhe ball?

  A 0.060-kg tennis ball, initially moving at a speed of)qdprnb300r a +vh r5a6lb;2d fm0snm 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. Wham5n+d6 ;rv 0)0fdq2m nlp0sbhrb3arat is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed ap2vgnt7(sqfhf i;y,jr+44o on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume neglrfasq2pi4(7f ;h,n ovgt +4 jyigible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is station)rjvg*:k 6hescr 9.sqq omo6 2ary when 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 .j*66)he 9rqsksco2ogvmq :rthe capsule?

  A small object with momentum 5.0 kgm/s approaches g8aq e ohj.9z i(e-pg7head-on a large object at rest. The small object bounces straight back with a momentum of magnitude9ee8q7 hzg( i-oa .pgj 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/s to greet your f4whqoyjem96h3- qk3ig 0x* sfriend (40-kg mass), who is standing styqx 6osie43q-mh93fg k*hj 0 will, 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 al2sb;a8 euis,d ong a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. Wasu d; ,2ieb8shat is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stoppe ,,b296etgz x-anhlqn d car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the coll ,x9-qhz 2b,gl atnne6ision?

  A railroad freight car, mass 15,00 .(au5xxkz) ff0 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 5ux.x kfa()z5f0,000-kg second car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with ne +p;mc r, t(io/gcf6jdgligible 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 fas;p t i(,6cf+dgjom/c rt will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of ,c4lxer/k4z5ub+a hse wx; y89edl.c0.80 m/s (with respect to the log). With what speed does the log move, with respect to the sr h9k;el/xe+a bl8z5wxdc4ey. 4u ,s chore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15 Nxg8x8 z 1 cd2qm:y6rzsj*u p(o and acts for one more second. What impulse was imparted by thc:xp1 8xqj6g zmzosru (2*d8y ese forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Wh d7uom4 a w) v;0qy7k4uj8ee,jix du0fat is the objec4ed8wf7 4 qeuvj7 0 odyui;xjmu 0k),at's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, bjm,yrwjj*o:atn )) 3collides with a brick wall and comes to rest in 0.20 s. Whatjt3)y)*:m wajnbr o,j 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 bji0lf 7i w;y1along the sambyw01 ;7ljiif e path, 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 rightp g1b.zxu2 /hy before and right after hittin 2.ypzbghux1/g 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 ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a 8qoe;yk*dga iv jm:i:v- qp1/muzzle velocity of 750 m/s, at the rate of 300 rounds per mijpvagi ke /o8* q:i y;:-mqv1dnute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in zbprolt05kh9x , -qh2 order to knock the door down. This requires aop ,2htkrl hbqz90x-5 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 ,wpt341sudrkbc5m 0w at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, wha1 5wb, p4 rd3scutkw0mt 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, whr ki o2wmu6-s5en fired straight up. What average thrust force does the rockk rm2 i-w5u6oset engine exert?

  Two astronauts, of massesxuw.yig+06 ,v 3wn jzitn(fr /y:okh5 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronn3.hry:n wo /,i zy x0+u5gtivwkjf(6 aut has moved 12 m?

  A 3.0-kg object moves )y;mcl67 ak xvto the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. v6 klaym;7)xc 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 2pdq(xwlt4 t+a head-on elastic collisiod(4 ptl2+xw tqn 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 fired into a 1.00-kg block at re-7b25j7 fl b vqhip/adst. The bullet emerges (the bullet does not get embedded in the block) with half 7bldjh7i b5pf- / aqv2of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is )+)-xy h gcg,pnniyl8 struck head-on by an alpha-particle (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-niyl g ,)y gxch8p+)n the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on wi.uu5iz0 mnt/b; 9butxth a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately afti5btut mnuz xb/ .90u;er the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collip0p*0dhg v/x npzxz3 ya kkk6w ),tvlg;j,x88des head-on with a 200 g ball sitting at rest. The collision is perfectly ela8kplk jp0xtyvgkx6,*az /nghx,d vw);08z 3 pstic.
(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/slsvmlsy-2c6 b6k c,: t. It collides head-on with a 3.0 kg mass a6 kt c,c:26l smslv-byt rest. If the collision 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 4.0 m/s collides head-on yni1t2k9 ej0win a perfectly inelastic collision witkjt 0n9we1i2yh 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 parq:aco: dclcqy( sk, *c:ii 08fked station wagon, who's mass is 2mcf:08ql*qas (y::,i idkocc c . 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 direction buries itself i8, 9rzszs zw pmp+.lj0n a 2.4-kg block of wood a rest directly above it. As a result,ps lzpj8.,0 +s9rz mwz 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/8hh iv0-zff 00,p fhnd/rl;ihh east collides 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 speed of the cars after collis08fnh; h dph00vi- f/z hifrl,ion?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg ca1nf04r3 p 4ydwg pq,l1p dk1nnr 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 col1dgplf4pn41 d0nk y,1rpq3n w lision?

  Two objects move on a level frictionless surface. Object A mo ulg;gcn0(4w qves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic colq (n4cu0gg;lwlision. 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 velocity of 4.0 mb+; vt. ywvj0l/s. It explodes into three fragments: a 5.0-kg fragment movin v0+wb ;tj.vylg 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 fragment? (Neglect air friction.)

  A 4.00-kg mass sits at tdog t rt8f+npq 9+bjt4dk8 :x4he origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centeddjp4q8b4+ftr :t +kn8g x to9r of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. Onzs 9hg:,qds ktq9 : x dfsv*hu1-xj;03-jujche particle is located ath ds;d :uhz19 q0xv-39tq:kxf-gc ,jh*jujss (3.0 m, 0) and 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 kgg1dm1hulb 2ygcq jnf:0m47 6g fq8*sg at (2.0, 0), and 7qfmg*1smghnl6 0gdybq:j2 uc 1f 8g 44.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kgrwjs*)fh ;8f/n*+ut ( vctbml, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of t th;vuj* + ff*bts()nl8m/rc whe center of mass of the system?

  A 3.0-kg mass is positioneqb;xb ib-ow fa36 u q lhgt9s/bh3t7/*d at (0, 8.0), and 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 sbth/3 / w 3;b6uths9 q7 x-*ifbalqbogystem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the posijiy3 noi/l4 uijzoaomtdj2k ; 49d0-(tion of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the;2i(4-0/jmoko d9ajzo i4ynj ld3i tu person is 1.60 m tall.