What is the SI unit of momen)a31e ws+fzk(wkhyux :k z9w. tum?

  When a cannon fires a cannonball, the cannon will recoil lwf*qjv0 q)1dbackward because the

  A freight car moves along a frictionless level railroad track at constant speeweby1qc yb njx v6wk7 wy-t8qr7*69 q7d. The car is open on top. A large load of coal is suddenly dumped into the car. What happensjqq 7rt6y6qwyy1 cew7bvkb 8n*x w -79 to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionlessqnontib7eg ep3y).k udr0+9* e2y:a a ice. What happens to the velocity of the sled9o2+7yiy: n n te*eku0be r g3.pq)aad?

  A rubber ball and a lumpuk d8c()clc6;qp,lt/ anrkxc- .7zjr of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit(x.r,c)nar uk/jdczlt 7;l6ck pqc 8-. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m ismerc1)s,6 j ,co umy8c moving with a momentum p. How would you represent its kinetic energy in te,1sjy8m o,c) 6ure cmcrms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it*d) 2fwmlxa +-)/ezkbpib,jmi-s0q p in the previous pitch, the magnitude of i2kzbs*e)ip)l,bq w/padixm- 0 -f +jmts momentum is

State Newton's second law iind ;y7z-qv 5qn terms of momentum.

State the law of conservation of momentum.m zoa8ip;jyb(76: fxv

  The area under the curve on a Force versus time (F vs. tyguf0- v(-7j /1mfm)yem eia n) graph represents

  Which of the following is 3r,bg k:wr j7ee:l7 fufqz)(ian accurate statement?

  A small car meshes with a large yxauc nn02;9wy-qzo1 truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force nn09;oy 2q xa-y1z wcuis correct?

  Two equal mass balls (one red and the other m6vbpr:/ra ;ablue) are dropped from the same height, and rebound off vra/am :6 pbr;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 a speed of 4 m/s, collides withawis/e w)k k6: a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to i) wwskek6/:a the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each otheriw3i6 j f:ms ms.;k1kq. Linear momentum

  A 3.0-kg object moves to the right atpa e2m -l71ir jp4d8dson /es* 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 je d s1m /ra8n 42soppel-d*i7m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg b-jcn 1xrvu h2klms m*su (6coro;:9: halfback runningm ;cs-n6rj(1c9xsl:2 kob :r vmo*huu
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, iihbequf; glg 5) ).l)uf the momentum is conserved, then which of the following statements is true about kinetic eneflh ;)gbug5qie )).lu rgy?

  When is kinetic energy consr 9r7:ngtcd(rerved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while tqqk me/1*pfkv 7pvhm,i0.8r(f- rxomhe #5 ball moves away with the same velocity as the cue ball had orig(p mqfe rf8-1r*/q7v p0vmik,.ohm kxinally. The type of collision is

  When a light beach ball rolling with a speed o(,,hyz md d.rmkhql3(j3/qpaf 6.0 m/s collides with a heavy exercise ball at rest, the bdyml, rmj(q33 hdzp k/aq.( ,heach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s tg g/k4pdgr)k6 o the right collides in a head-on collision with a stationary bowlp6k4 )dkg/r gging 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 col7k dxtlz6qr j9uzs;*2lides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball 2t kd6q7 jz uzs*l;9rxafter the collision?

  A very heavy object moving with speed v collides head-on with a very ligh ; kgo:)rcmp fx-+e:x-pgqx6 ur-s0 crt object at rest. The collision is elastic, and there is no frig: f0e;) x6gr-- pkusxmr:c+rpx o -cqction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving wlhs :py;;4.pieo)y b41 kkbhtith speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collisio:o;kb4i ) 1 4lyspe;k.hpb htyn 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 head-on with a yellow ball of eq-v1 zd0tb,i zerh 4ep1ual mass moving with a velocity of -2.0 m/s. What is the velocity of t h0ieb4rtvde1-z1 p,zhe yellow ball after the collision?

  A very heavy object movingzbe.cyrx .0,y with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friyz,y.b.rcx e 0ction. 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, th15 .vulxbj3kn 7*xi qhen which of the following statements is true kv3 x .bx1iuh ljn75*qabout kinetic energy?

  Two objects collide and stick together. Kinetic ener d254pg8klruh gy

  A 3.0-kg object moves to the ri4hvn;da)fm/dk lys .cef;a3a+v 8q g0 ght at 4.0 m/s. It collides in a perfectly inelastic colliac0 qh /8vm3dld;sg f4e y+f )aanv;.ksion 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 wf8 2vy5zroqy +:ivo hcv ck1x8ns/i9,ith a large object and sticks. Which object experiences the larger magnitude of m/iz ov 9v5ivn,c:c+srf8ky ho8yq12 xomentum change?

  In a game of pool, the white cue ball hits the #9 ball and isa9bl0 y*jq)se)vtpz + 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 ofn)2wjglzzw8xqj ,;. c the following statements is false?g8j;xwj ,z).ln qc2zw

  Which of the followins19r gpbz5:imaj;:ev lepo: /g is a false statement?

  Tightrope walkers walk with a lo9 g+-d)pl23ej3 lltnwoh8us f ng flexible rod in order to

  A plane, flying horizontally, releases a bomb, which xf4a c -tpf78)w:d4a ld.znx oexplodes before hitting thea4lz d:x wtc8fd .7-paxno 4)f ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide hea6-n9pmh gytu+ d-on on a level friction-free road. The collision was completely inelasti6y9 + tgphmun-c 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 la 4lkl0b;n 6zhx0pup*a w for a system of particles.

  What is the momentum of a 2000-kg h8twi0kpr8m( v)16r4ethehb truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m1yz/ggi ec o:2/s. What is the magnitude of its momene:/z go1g2icytum?

  A ball of mass 0.10 kg is dropp2jqaqphi g/bnpf4j w6x0;;c:rez 7 h+ed from a height of 12 m. Its momentum when it strikes the ground isb hq; z/n;hcgpr0e2 4fj7:qp6wa+x ij

  Two identical 1500-kg cars are moving perpendicular to each oth0y :o(s;o,ntdycgj603qckrfqy8 j(l er. One moves with a spok3j,o0y y6:c;(fg0 jnr(8dct yqlsq eed of 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, traveling horizontally at 30 m/s,6m53yq5i. zlx tlgfs:q3p o(fyx:f(.fmvmi, strikes a wall and rebounds at 24 m,mflqyf33zxs(.m:5(5yiqt6i o pmfgv :l .xf/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is g:7*z s7kanid struck by a racket causing it to rebound in the oppositei* d z7ksg7:an 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) ivn)k1kp4i d( sclicnnm (nu))iu)6h tx*vn 4;s placed on a frozen pond. The machikn*mu)u ntvn;)14 dk v cinn)((hcp x4 s)6iline 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 thefjj7q5ba:n vcfz hx1an.bz : gc v47*7 space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he :czvq1b :f4 jac j 7v*7gx.na n7hz5fbthrows 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 5.c w9)tnpj. qp80 kgm/s approaches head-on a large object at rest. The small o pqw .t)8p9cjnbject bounces straight back with a momentum of 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 to greet yomlt+(e e1uwd+ ur friend (40-kg mass), who is + (ed+ewum1l tstanding still, 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 rightjr s:my, hq5fend 5l/, along a level, straight road at a speed of 6.0 m/s. It collides directlylnq5sd/ ,: ,yre5fmhj with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling f 2m;u-k xzlcsa50:zaat 25 m/s runs into the rear of a stopped car that has a mass of -0k 2ua ;s:xlazmczf 51500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15, b3a(f )1 kki q4uz4(o et1jluf9+prnw000 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. What is the speed of tj)41 zf w(uk (k9nueb+ arloq1pft3i4he two cars after coupling?

  A railroad car, of mass 200 kg, roclu) 9cdwu ;4flls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-;w9) cuud4cf lkg 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 h(3cgcamv(f5hxv w*/t skf6 1 a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed dvw6a kfs*1m5/gh(f(c v t3cxhoes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increasesy.ub7hbn63bl:, 6u3gi5laaek v i8 kw to 15 N and acts for one more second. What impulse was imparted by these forces to tg:ik iua3bwn6 kbu ll5 ha63,vyb7.e8he object?

  A constant 9.0-N net force acts for 2.0 s on a l4.9 te br, cotowmfmj/z7,da .86ipo6.0-kg object. What is the object's change of veloc,,lboc9aiwz 7mt8eo.r d.ptmo4j 6f /ity?

  A 2000-kg car, traveling to the right at 3hvlld gqz)0- +.02ji+q wabcs0 m/s, collides with a brick wall and comes to rest in 0.20 s.zha)qj l+ l vi0+.qw02-gds cb What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitzu/j fa 3i tlvkiqq7t,d4sy6d6 -61ftched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in coz,sq1-ff k64q6i/ dttt 7dy6v3jil uantact 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 spx, pot wgf93p:hk c49geeds 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 the average force exerted on thtf:4xp9p wok,cgh 3 g9e ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle+bhow p fugg* w ny;/ckb+ci k n/,-:m;i+j6yv velocity of 750 m/s, at the rate of 300 rounds pecy mikg;hbn6 ivu:fj,/-+ykw pw/ c*+ong;+ br minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a vue+g pd x 3o;xk2kb71burning 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 stream needed, assuming the water do+x kg;ex1 v udkop7b23esn't bounce back?

  Water runs out of a horizontal dr/eyf 6r/i3 s awl60ch6c meimmxshvm(;51-tzainpipe at the rate of 120 kg per minute. It falls 3.20 ;r1cw -sy eii6h(mmscet/56/6mzml 3h0 fa xv m to the ground. Assuming 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 afterynt 9h7d 16kjlgv,j+ye8d1jx sci; z3 3.0 s, when fired straight up. What average thrust force does thejlkd8, x7g;j 19yevd+h1j n 6ty3icsz rocket engine exert?

  Two astronauts, of masses 60 kg and 80 amul-: 3fn(y/xuup m1kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 12 1-a/3x(un: lfpmm yuu m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a0q:su7 lu 6o62ti)p+xher l mr perfectly elastic collision with a 6.0-kg ob hi)qsmou7 02er6l6t: lxu rp+ject 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 3tyno-m su nywl) 3/v)+x direction makes a head-on elastic c-nvw o)y/mut lyn) 33sollision 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 m/b8qh6yn5hi block at rest. The bullet emerges (the bullet does not get embedded in the block) withnimh8 /5qbyh6 half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, a y6xd, m+vkr6nsq 6t5ht rest, 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 the collision? (Assume the neutron's mass 6+sr6k5 ntv6ydx m,hqequals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass x v4ka-mt rqsj4),-ok 100 g. The collision is elastic. What is the speed of each ball immediately avx,k krj-4so)m 4-tqafter the collision?

A ball of mass 400 g moving toward the east with a speed k 3 ;mnlghmn-3of 3.70 m/s collides head-on with knhn 3g m-m3;la 200 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 of 5.0 m/s. It collk cl,(/yi3zo*ellfy ,nbsn 1:ides head-on with a 3.0 kg mass at rest. If the colcsl nn,k3 :e*z lyl/by io,f1(lision 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 hq7 j of4)yh- y6bhwhd/ead-on in a perfectly inelastic collision with a stationar/ d- f7bh)hyq4 hy6wojy 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a v6vbkke(nhhypfb *h k fg,thz24l4 :61elocity 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 energy is lost in this k1 z4t 6kkg hhbn 6fl*e:f4,hbyv(2h pcollision?

A 15-g bullet traveling 213 m/s in a njl3l 4ihmx.lp/ zx,0vertical direction buries itself in a 2.4-kg block on l3/0hmpl . 4z,jlxixf wood a rest directly above it. As a result, 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/h east collides with ai)zb pi 9p,d)v1 7b*j pzgg(it 3000-kg car traveling at 60.0 km/h south. The two cars stick together after tb1jip *g,9)(z)p gtdzvi 7bpihe 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 jj *z*vau2bd1z-v zsw,e/s3 ytraveling 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 collisi,y3s2uvz1-zbdsjz / eva*wj*on?

  Two objects move on a level frictionless surface. Object A moves east witf kfij3(n g9c-v/y ii.h a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelkj ii3gfcvfn- /.9( yiastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving to2tchjbx,a98whe: 0. h )zavkgward 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 kvch 0ba.z8t,eaw:h)x9 j 2 ghspeed 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 10.0-kg mass siqz*. t: picfg oaw3.cup wux7,); i1dtts at x = + 21.0 m. Where is thetdc1 ,)to g3puxa.iwp *i:cw7.; uz fq center of mass on the x-axis?

  The center of mass of a two-particle system is at thmqhb +4ydm v(x1u4+l h.yv x0pe origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What xq4+lyphd1 ( y +vmvh.4x mb0uis 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 r u wt8cc7tcut706e/ bat (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cenwc/ 67t 7t 0uce8crubtter of mass.

  Three masses, 1.0 kg, 2.0 8hqns/ded 4;pkg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of ;pq8hs/n d e4dthe system?

  A 3.0-kg mass is positioned at (0, 8.0), 8 hb;l8tsjir3 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 systjir8s3 hl8; btem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg incl :jb4r 6ziwy)duding the foot when the leg is stretched straight out. z4i) j :ywbrd6 Assume the person is 1.60 m tall.