What is the SI unit of momcpurefo 963f62mw 2 iwv,2btwentum?

  When a cannon fires a c6e( q1 i9zcimeannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track nw ,y+uwihm)uo195e rfsi..x at constant speed. The car is open on top. A large load o1wy uhw5nm, x.)fi r uo.ei9+sf 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 frictionless ice. b yq9xw1f4 (m(d vjox/What happenbo91 qdm xxv(yfw/(4js to the velocity of the sled?

  A rubber ball and a lump of pcl 8vqa0q, a*rutty have equal mass. They are thrown with equal speed against a wall. The ba calvrqa*80q,ll 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. fp9z0 w qzyxj)x8x)u 4How would you represent its kinetic energy in terms wzzxq 9u48x x0p)fy) jof these two quantities?

  If you pitch a baseball with twice the z:q+s3f*prale w6 rztq .ox 4*kinetic energy you gave it in the previous pitch, the magnitude of its momentua*36zq4pq:*z .l wr f+rotexsm is

State Newton's second law kdi-ma:pf.oyw2(z 2 +fn kd;uin terms of momentum.

State the law of conservation of momentumo*lqwum ,b.;j)uxtp 3.

  The area under the curve on a F//nrjm .7 vsz94x 07anfmgjbxorce versus time (F vs. t) graph represents

  Which of the following is mh8r6 be,x ;6e5keutean accurate statement?

  A small car meshes with a large truck in a head-on collision. +ju35oqb wyqc t(uj4, Which of the following statements concerning the magnitude of thejyt, +uujo4qw bc(q35 average collision force is correct?

  Two equal mass balls (one red and the other 4, mfl7pf ew(pblue) are dropped from the same height, and rebound off the floor. The red ball rebep(wlf 74p f,mounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movinlj+a;9ygezaf0 fkfi)0 499lxh iw(a cg east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowlinzff ak4jg0y)9(w h+ae0 c9faix9ll ;ig ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bouncp10wkubn+rp+ofj h +d .dle0 ,e off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides hm:k inu ,c*8tbead-on with a 6.0-kg object moving to the left at 2.0i :numbct*,k 8 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfgby.w:do ln ew,(, q,.etvit 2)vja1zback o1).:,v,tbt edznw,ivy w.2q leg a (jrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum 9 7c.x9g3fo;okeh4k ak yui*nis conserved, then which of the following statements is true aboc kh*99.e k3of;no iagu7k xy4ut kinetic energy?

  When is kinetic enerdtp-ww pz,3duym xq - (6u7t:rgy conserved?

  In a game of pool, the white cue ball hitw 2/vttc;p x280b ivqp)6ryp zs the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. pzt0/ x c8p 2)vy;2prw6btqivThe type of collision is

  When a light beach ball rolling with a speed of f:x2ehry-l( 0) rw xnf6zc:wj 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed af- :2xlryw ) 6jner:fzcfwhx0(ter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right dep di:a:v4 qdf* 0im5collides 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 immediately after the colldv*d0a :i 5ipd:eqm4 fision is

  A rubber ball with a speq7mcqlg w(b3(gg* vy1ed of 5.0 m/s collides head-on elastically with an identical ball at rest. Whg gw 1(ygvcq7*( qbml3at is the speed of the initially stopped ball after the collision?

  A very heavy object moving x (by0i2s ad2gdk1k:o(htrldj c+ g2) with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. gsb2 dl)(gddhc2ijx:+o1k0t( yk 2ar 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 a pwr4 2x1 v0jksvery heavy object at rest, in a frictionless environment. The collision isr 2k04j xvsp1w 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 48 tfv saqn9xfr:ro 02w4swr3with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the veloc 90xo ns:st r4f3rrvwaq4fw28ity of the yellow ball after the collision?

  A very heavy object moving with velocity v colov gj6ufhvxz*1- +gk 8lides head-on with a very light object moving with velocity -v. The collisixv8o g-6vhj +g*kzuf1on 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 coll /omv( e;gg4kwision, if the momentum is conserved, then which of the following statements is true about kino 4mkew/; g(vgetic energy?

  Two objects collide and st+z6yk eg p,bg+qzjc0 3ick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inela 54g1x)63wmq. ju q6 eioljynsstic colliyq .)lo3w 6j 16uq5igse4xn mjsion 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. Which ay 1r,(h);s liaq dj5y.urvj:object experiences the larger magnitude of moment r .(y;lv:ia jqd5jry,h1u)asum change?

  In a game of pool, the white cue ball hits the #9 ball and is defg--1trl x0dg blected 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. Which1 lr/22ykd(4egkq ej t of the following statements is false? dekgty q4l2kej 12(/r

  Which of the following is a 8v45wq; cezerfalse statement?

  Tightrope walkers walk with a8t ndts;s/ 0jxy8-vei long flexible rod in order to

  A plane, flying horizontally, reupearw2,yv; j ;qgcl94 s/y c0leases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the exploc aw;0;2q u4yj ps,gery9cl/vsion

  Two cars collide head-on on a l+rix gd; 0,g*mn 4gtyx 95 yiiuu wunee--8t.aevel friction-free road. The collision was completely w.g *e ti5gux9r,iu a48 nndty ;gu--m0ye+xiinelastic and both cars 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 sysmg1 nrk (6k9,kkzkhm3tem of particles.

  What is the momentum of a 2000-kg truck t r;bz13-e+keteb-ntt)eyq 7 eraveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its nn15:ept-: hy l;ozb-v yd8 ssk0rd*s momentum8lsd;k-:yhpstn5 sv ye* 1n:-roz b d0?

  A ball of mass 0.10 kg is dropped from a height *rkz( x3gsrf5of 12 m. Its momentum when it strikes the *(rxsg3 z rk5fground is

  Two identical 1500-kg cars are movi:y x0q581 k *jbkaezning perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east.b*jk 1zke:xi ay085qn What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes y(0 ,ja*nln34i)ty -scndzz( h wc )aka wall and rebounds at 24 m/s. What is the change iz,)( yk3dlnwtyzcn-a nh0c4)s (*ijan the momentum of the ball?

  A 0.060-kg tennis ball, initiawml6 yw ,)n(pclly moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite directiywnp6c ) ml(w,on at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placqc/b9ehk, v4led 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 negl /4qv9c ekhbl,igible friction.)

  A 70-kg astronaut is space-walking outside the space capsule6dy( ry3 9;cp xft.gbs and is stationary 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 m3trb9ysypxd. cf 6;(g/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with mome sriql)fk+j/ 8ntum 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 tql8 s/ rfi)j+khe large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to g) - hhuoyd 4m2 ptaljg2k5z;/jy.z*mgreet your friend (40-kg mass), who is standing still, with ope2lguzoyd2)y*;.5hthj- / p mkmza4j gn 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,;rigr 3-.yjj6zy /zqt straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the tot.3yri zqj ytg/-6rjz;al momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that hzi1ao)tr/8- jmqwpo6 as a mass of 1500 kg and they stick together. W a-j)zp q68w /oromi1that is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lezd04 oq hte5(evel 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. What itq4 0e(5odze hs the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friwm2le0r7iy) l dn7w8p ction on a horizontal track with a speed of 10 m/s. A 70-kg syr n2l7eilpm)7d w80wtunt 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 respect to thh g, 6fg/jr+u-a:aboxe log). Wiu6ga b -g :x,fhoj+/rath what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s o1;hn: 0v.kjag/u fjj tl9c1qjn an object. The force suddenly increases to 15 N and acts for one more second. What impulse was impa/:a. ng h kc;uj0 flq91jt1jjvrted 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 ism p5y1/c7 1no/wvgl 4 sfy(esy the object's change of v1pngl 5y1ef7/mwy(sy/s 4ov celocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall kdcy y*j3r26n+q60zy;h7vu ai26met8b ngyb and comes to rest in 0.20 s. What is the average force the car exerts on the wa8i66g07y ta3q zcyn;y2hnkm ybevb6 d +2 ruj*ll?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back al2li 7dp+ u/qlmong the same 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 ex mqpdu+ll/i 27erted?

  A 0.10-kg ball is dropped on, zc+f/a 2lot6 kburb;to a table top. The speeds of the ball right 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 theo;bl 62/a,c kztfu+br average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50pxdq:98la )ihsa6x1nxd 6m 6x.0-gram bullets, with a muzzle velocity of 750 m/s, at thna:l x6d6qp8 16axmdxs)9 i xhe 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 burni,:enxmn us /k*ng building in order to knock the door down. This requires a force of 1000 N.u mk n,sx:n*e/ 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 azi3+/lfcn) yjt the rate of 120 kg per minute. It falls 3.20 m to the ground. As fj )+i3nlyc/zsuming the water doesn'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 m/s after 3.0 s, wh och y4 f5ym1o7i1ke;ten fired straight up. What average thrust fitfcy7m 4ye; 5k11o hoorce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at resbz la, mm6 2gjpcn)etv; l(bak-i/v(eh 8 d)1pt in outer space. They push each other apart. What is t,cdmlnpz)(6vai 2g)klpj ( mb-te81v eh;ba/heir separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.07uyg: )o ccw* .hmy:oh m/s. It collides in a perfectly elau 7.*:wo mch oyy:cgh)stic 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 ip 1/eq8;2r)6dpox z k-ryuc kwn 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 w- k2 )/1p6yd;eoqp8uzcr kxr object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-dz 4q50sw 5c29o ebzsbkg block at rest. The bullwz05bbqessz 24d 5 o9cet 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 collision?

  A proton, of mass m, at reho ab3/xx:s.yy 3htmz o84b)ec 5x0lust, is 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 t/s zhb)lox b 8yxh33 0a4oceumx:. 5yalpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass 1 6*nnyjk- -b*,bz wgvp00 g. The collision is elastic. What is the speed of each ball iv,pw6jn-y*g*bnk- b z mmediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.7hudup dl a* b90mpycw)n jw,x;-nx; 0/0 m/s collides head-on with a /a; ,c-j;0umwp*h w90lxdbnupdxn) y200 g ball sitting at 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 ouu lfuk1gyed0//( :w mf 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision iuw1kg/ m(yu/lf 0ue: ds 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-nvwv)3k7 - q.wj.odlqon in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this colliswv 3dnol7-kvj. q wq.)ion?

  A car of mass m, traveling wjxh-ont0-*y8 b d3 de9w4ugtofbu d 96ith a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ener68tdb -9u0egtbohu*d fy -93 jxndw4ogy is lost in this collision?

A 15-g bullet traveling 2g5ba l/ r)r:cs13 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/ s:lagc) 5rbr 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 friwde r.g+;; o16 c.chkz(he 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 collisiono. h+cfd(i1grk.ew 6r;c;zeh ?

  A 1500-kg car traveling at 90.0 km/h eav+b6ka-v 32v6dk: cb3g k hqclst 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 direction v: g3 63akv6lkcbk -2h+vq dcbof motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east wiwaopo+w; . mu(th 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 o.w+m ;wu o(patheir combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towav zs :-ln5q-hhh5 zld 789gtebrd 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/s; a 4.0-kg fragment moving east with a speed of 10 m/s; and a third fragment with b 57g- 5hz:z 8lvde-sltn hhq9a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the or9s72p3p, e(siziyhu z igin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centers27p,e zi3szypuh ( i9 of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle iz vh)4 bxpt99rs located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of 4brzv hp9tx9)the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kghzn;idcfm/.ax a 7nv1 12ho* b at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of massnb; 71 fv.caiaoz1 d *x/nhmh2.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.+bpagh,/ b . y9a cwoz44fl)j u2lqdft2f+4pe 0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of t2o.p44fpe4,gcj uld tz 2w +y)affa+h bbq9 /lhe center of mass of the system?

  A 3.0-kg mass is positioned ;)mos i9+ 3plnvbfy7 wat (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 system of three masses being located at the origin, (0, ny3;wop7 b)sil vf+m90)?

  Use Table 7-1 to cal5m667 q+h.f: l;pwsbzwnl gfjculate the position of the CM of a whole leg including the foot when the leg iz ;fg6:5mlnfspjq 6l7. wh+b ws stretched straight out. Assume the person is 1.60 m tall.