What is the SI unit of momeubu;x+w0i5a7t )i rnoj g o9r:ntum?

  When a cannon fires a cannonball, the cannon will recoil backward beca)q mqsklim.2tl8 8q1o use the

  A freight car moves along24a su+ xxx9kxa 8k1nj a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dum9xu j24ak8sx+ axx1knped into the car. What happens to the velocity of the car?

  A child falls sideways off:s7ym*b; ( bj 8hb vrw8zexbt( a sled while sledding on frictionless ice. What happenh e7bm(vz88 w; yrxbb(sb:tj*s to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrownt1xv6jca cb,c8q+ t z* with equal speed against a wall. The ball bounces back with nearly the samax,1 tq* zc8v+cb6jtc e 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 yoj5ozh ) ;uy ,+uonw1sdx)t5 enu represent its kinetic energy in terjyn huo )dsxu5z )5n,1ew+ ;toms of these two quantities?

  If you pitch a baseball ex+av.9 y+gzx a2t17 fhl p+bncc 93erwith twice the kinetic energy you gave it in the previous pitch, the magnitude of its momentum ish+f+av e2 1cb eyczg3.l79rx+xa nt9p

State Newton's second law 5t ,z 8cpgvh6pin terms of momentum.

State the law of conservation ofi1(mku1h)mx et: lf*a momentum.

  The area under the curve on a Foru75 ry uypj-c3 s5rlk;ce versus time (F vs. t) graph represents

  Which of the followinr4lc ,lrmkk hwfj ,a8u/me*jf;*m22 pg is an accurate statement?

  A small car meshes with a large truck in a head-on collision. Whic9gt .gwiiot9 p 3p(,)ahqg*sbh of the following statements concerning the magnitude of the average collision foros9g3giat.it q*,)pwp 9b hg(ce is correct?

  Two equal mass balls (one i,s3/ gv4v8x bcocd u4red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulcv oug4v,4i /d8x b3scse during its collision with the floor?

  A Ping-Pong ball moving eas7 +ivh6*inft w:o//owfbqp5 z t at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very s:5*w/pn zhb+ iw6ioftfq7 /volowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off)918ji e6umx*w6um, f a; l 3mfdeiglo each other. Linear momentum

  A 3.0-kg object moves to ,fmu m x/crb(*u5( s8rt5ywdy the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which sta yrd* umfb5y(u x mwsc5(r8/,ttement is correct?

  A 100-kg football linebacker moving at 2.0 m/s +a3 :krqop-9jn9dmjo tackles head-on an 80-kg halfback run radop:9o3j jq-km9 +nning
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 followik4 rkefw+a vlr; 5:wdm )t-tcqf dor 1.*vc+,gng statements is true about kinetic energy?fv1: w) rgcd cmr4lodwkt ++f,rt-;*qkv a.5e

  When is kinetic energy consulo4bt 7sg 5s f,+ t,lsqzj7utn.2l2xerved?

  In a game of pool, the white cue ball hits ,eo9z)h1pv am the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ballz v)hm 91,paoe had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy ex4vx/dtwi:.o 9dj krg w0e0v0d ercise ball at rest, the beach ball's speed aft.gdt0r 0/ix9jd0dvwwe: 4vk oer the collision will be, approximately,

  A golf ball traveling 37 -yqd e-x3 .nwnncgj4.0 m/s to the right collides in a head-on collision with d4nj --ynq 3.egn7cwx 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 collision is

  A rubber ball with a speed of 5.0 m/s collg0eu3:6v +sa 8za /ptheje 4jqides head-on elastically with an identical ball at rest. What is the speed of the initially stopped uja eztq0gjhse +ae84:v 6p3/ball after the collision?

  A very heavy object zls-oke)e :lxxb*1sq)a b wl29b/ 8gbmoving with speed v collides head-on with a very light object w:e xgzklb o8)x1s)l2l/- ba se bq*9bat 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 collid/ 0q86ngm (pxwyacdznuv) +ya b:;xt;es head-on with a very heavy objecpa/6gyqcd )+x; zn xwut8vy:(m;ban 0t at 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 +3.0 m/s collicf5,xxo p5y1mj0zd, u3c ddy;des head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the 55c x md,1,yyxopufz0cj d3;d velocity of the yellow ball after the collision?

  A very heavy object movin2 z,dbyjm:gp87bjj6mf y08fm g with velocity v collides head-on with a very light object moving2mj08ybbzg fpy6,fjd: j78 m m 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 collision?

  In an inelastic collision, if the momentum i5vm(f ;dgyc5q diw+o d8v,bf +s conserved, then which of the following statements isq5do+ cm,wv(i v8 db y5gfdf+; true about kinetic energy?

  Two objects collide and stick togethes,h tc wzz*ous5.s7s0s3b8 vhpf;of-r. Kinetic energy

  A 3.0-kg object moves to th/*u:a vc d8()dluxgex vp w6q/e right at 4.0 m/s. It collides in a perfectly inelastic collisid( lwx)g/ *a:c /8dvuu6evxqpon 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 sticks3be: p gtj(5jfuvr1z6. Which object experiences the larger magn :u frz16b5jjtvp(g3eitude of momentum change?

  In a game of pool, the white cue b vcle4x g*xgl.n,5 i9eql 60yxall hits 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 unequalmh+4dd- -jx lgve f26ka7w ya) masses, M and m. Which of the following statements is fals --jw 4d6yxk7la2) fhdemvag+e?

  Which of the following is a false statement 1rcq:, dh3msh?

  Tightrope walkers walk w*rfep: )yuuf:2k5r /bz *.cyqozk hg 4ith a long flexible rod in order to

  A plane, flying horizontally, releaseajmnh 8jx7 )d7gy- - 9owf.eqjs a bomb, which explodes before hitting the ground. Neglecting air resistance, the cenje)-jx-d mwg j7.78fyahn 9qoter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The colvfrrod(b(x h pbq h/(jr.eem42)r26r lision was completely inelastic and both cars quickly came to res (r4bx2rebrq (r(2p ohr./d6 jvm)h eft during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of p5h di17zhwf, farticles.

  What is the momentum of a 2000-kg truck traveling at 35 m/s?so(* wlw nw4zw6o7vv4

  A 1200-kg ferryboat is movimvd( appbcf)bg3ebt 6c7m 450f)hsl3ng south at 20 m/s. What is the magnitude of its momentum?43c7tvmpf65g lcb ef3( )) mspahd0bb

  A ball of mass 0.10 kg is dropped from a height of 10t wqm l jwa)m4,0ug chrvu, 4 lv:*;t/aexjd+2 m. Its momentum when it strikes tu4vqjlt 4a h+* cl,vt/rm0):jm gawwx,d;eu 0he ground is

  Two identical 1500-kg cars are moving perpendicular to each fnjl50 )9ruo z7btgj7ydw2z /other. One moves with a speed of7o72j90zb/nt)fjzd ly 5 rgu w 25 m/s due north 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, traveli4*rj oe 1xk9yung horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ba1 youx *j49rekll?

  A 0.060-kg tennis ball, initiadhm3jxed58p8 0v t y8llly moving at a speed of 12 m/s, is struck by a racket8 p85x 8d3v0 jtmelhdy causing it to rebound in the opposite direction 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 pla mxtujyy1 9f1v8ph9du))8mu4: ekoxfced on a frozen pond. The machu1yxm889fum pd) fkot:jx1huy9 4 )veine 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 negligible friction.)

  A 70-kg astronaut is space-walking outside th:m0 eq l8 eusz(ji5/z-jmru1re space capsule 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 m/s away from the capsule.z05i qzjsj- erurum8e ml /1:( At what speed does the astronaut move toward the capsule?

  A small object with fckgld5-4j( d momentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum 5 c (lj4ddk-gfof magnitude 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 tobbyyw wkk 5a.2/hp)(j greet your friend (40-kg mass), who is standing still, with/y 5bwykjp.bkhw (2) a 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 ,m*rsdm4iprnf8s i70a level, straight road at a speed of 6.0 m/s. It collidessn rmispmd0,ifr 78*4 directly 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 intvr9n :z8;bftm o the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of 9nf;rmvbt: 8z the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a le cv8 jh.9sc;rzk;vw 6vvel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, wz; sh vkv86.cvr 9jc;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 negligible frhdz,++vv hbv 2iction on a horizontal track with a speed of 10 m/s. A 70-kg stunt m ,+2vdvvb+hzhan 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/s72q t67 9lmf zpykyf nau.;6dc0dzmm ) (with respect to the log). With whamm7lf fqyz0nm9d6 z)6 c yup.akt72;dt speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 150a ahsx z 91u9().jd2yn iswyb96upu v N and acts for one more second. What impulse was imparted by these n yi9a 9pux)2aus19ydjb .s(0uhwzv6 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 a9yl /ltet5e 86edcpo hon*):object's change of velocity?9tol5lnp6ot c a )yee*ehd: 8/

  A 2000-kg car, traveling to the right (l5u: *l6ukh8rz nr tudw5x/h at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average zx /55 ( 6tn*:dukhuruhrlwl8 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 along the x)g5cphn 6rhw4sr 99zsame path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the h h9zrw) 9rgx5spc64nmagnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a wgcs +z0uq5nnmu(h3by;k* j4 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, respe4 *umhc+ygk3uqjw0 ; 5zbnn(sctively. 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 50.0gil +;+m:l (/ubm glzi-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machinigm+ u(;l: bz/+li lgme gun mount?

  A fire hose is turned on +h xl7kak88bvx2 l uj.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 the minimum velocity of the 8 lk7lvb8u x+kha.xj2 stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. jv85*.ysbir s It falls 3.20 m to the ground. Assuming the 5sr8js .*v yibwater doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity 8 bpj 4ulb2fuoww7q cs u 5 b0zi0m1e.beoz;(7of 40 m/s after 3.0 s, when fired straight up. What average thrust (wqb07u0 8fweb5s iz7m; co2juzoelb.b1 4up force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are;j.6 h-zylx d8vz egh( initially at rest in outer space. Theyzhl.6j8edz vy gx (;h- push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right jua+ 0co;fh.84 a q 8exke5dsbwith 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. What is the total kinetic energy after c asub5o ;jae 8.08qdh4+kefxthe collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hes- ncr)dlc *a)ck 0vr;7lk6i cad-on elastic collision with a 0.1kc60clsl )ri-) ;k7*ncdarcv 5 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 in93* sq0rx2m o ,pqlgcito a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedo 09crsq3 qmlx*ig2p ,ded 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 brj am9 wka(j 8m.0u-us z*c;rjegpj(s5) u.a, 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 alpha-particle have after twus(.ar5amj u(8;bsuj k* . jgrca-9z0jmep)he collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/sm*y/9rqy (btb collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of eacht*b( mqy y9rb/ ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collgek: 3sel8xq64r5w1 v*jtmlbides head-on with a 200 g ball sitting at rest. The cmvxbt8srl6 g31:w e jek4q*5lollision 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 gon; y2qr3 j -ipga6ws bhn19-k5 f-xawith a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the m 9 wg a-3okifp52bnrxj-hn gs ;a1y-6qasses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-6xlv j9banhhd u8 c3*4on in a perfectly inelastic collision with a stationary 2.0-kg mass. How mucx34ucb9hhvlj6 da8n*h kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, wh :r+6 +upgt+es, yj.rbaej*j co's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial,ayc t6 u+je:bp++*sj rjerg. kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in -80),cu d a owt( gfsbk;nh4qg.4fltua 2.4-kg block of wood a rest directly above it. As a result, the bullet/block cg;),qska480ou4h u( ntfctfd-bg. w l ombination 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-kg car traveli q+s)sm6q jmowo u h/ :1e/glpx-s:xn5gg 5g+lng at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.l+h)j:+s gon5 qeoqgxm/ gp:6sls-5wm g1xu/) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east co5r31 5s zbtfe/no x.kjllides with a 3000-kg car traveling at 60z/5 f1n.kseo b5jrt3 x.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 collision?

  Two objects move on a level frictionless surface. Objec06 yals 0g8(quaau2pht 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 th0g 2s(a8 uula06aq yphe 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.w:8qn jxc-1pi 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 of 1.0 kg. Whatnqcw p8ix:j1 - is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg cg/( dpdrb 3h-+uwzjlr +ge: 0mass sits at x = + 21.0 m. Where is the center of mass o+h3w/errj bd+- :p gc0dl(g uzn the x-axis?

  The center of mass of a two-particle system is at the origin. One particle 8p kxpctw/1c,is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the ct1wp 8,p/kcxsecond mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0.bvxxg3k 6 a-x2+up wy7il(b h), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.vk(bl2wp7hy6gua b. x3+ i xx-0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are l v3o7:ov7pdty ocated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. W7d:3tvo7yv po hat is the location of the center of mass of the system?

  A 3.0-kg mass is position3(tb snpv *l0hed 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 inthn0(3slbv *p 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 5iv gf xs2j.ea7zln,5 - ,1u:mndiuln of the CM of a whole leg including the foot when the leg is stretched straiguxi1l,d j5:-ne m vz i7n l2,nsf.5aught out. Assume the person is 1.60 m tall.