What is the SI unit of mome.+/:3fv j (jfrafixwijo(xe. ntum?

  When a cannon fires a cannonball, the cannon will recoil backward becausawwa 8ssa0yof4 i1ms oqc 2/xqb 52l lwf84,/fe the

  A freight car moves along a frictionless level railroad track at constantqvjy.gi:fe:* ; (kajryml1l2 speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the vele: g1q.;( viyjly:mk*lrfj 2aocity of the car?

  A child falls sideways96cktkn;))vowrohhz)z/ v7 bzms 7o, off a sled while sledding on frictionless ice. What happens to the velocity of the sled,)w bo z)/)oc hkrt s 69mzkznoh;v77v?

  A rubber ball and a lump of putty have equal mass. They are thrown with3bb)l 7aba5ti b m4td/ equal speed agains5b) 3tdaa7bmb4l/ib t t a wall. 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 e wv+;)pryn:+1q) (b0app kbv *lvgbva momentum p. How would you represent its kinetic energy pw( :;yag*pbk)0bvqe+vr p +v)l 1v bnin terms of these two quantities?

  If you pitch a baseball with twice the kinetic ener 0dz p:c9oy6d84j7rrpdcxbxx c,)ux* gy you gave it in the previous pitch, the magnitud4d od: x ,9u*pzcxpx0 )d6r xj78ycbrce of its momentum is

State Newton's second law in terms of momen5f iww5.xms, td/2k7q x gwsw-tum.

State the law of conservatioce (lainkn...e65 ob qn of momentum.

  The area under the curve on a Force versus time (F vs. t) graph 1vn qg i+w*j8arepresents

  Which of the followinfh 1;-uj 0v1mik,b:ypwbo ) teg is an accurate statement?

  A small car meshes with a5b9x 7ag j*us/kemd8 j large truck in a head-on collision. Which of the following statements concerning the magnitude of the av js9xe7gbj85 mduak /*erage collision force is correct?

  Two equal mass balls (one ro7)z isiri/j3 7.j woned 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 izij i/n.iro3w 7osj )7mpulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed erj,/phqs0l.j70m4x4qr b )u /kysm n of 4 m/s, collides with a stationary bowling ball. 7pm4q)4e0sku q,.0jr/mlr njsb/ x hyThe Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bou h9sg/+cd6.pbd; m kipd (cd3vnce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. +f41j ladd1ebsufn 36It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which staje1a f fb1du46sn3d +ltement is correct?

  A 100-kg football linebacker moving at pv 8sra,h)d 1s2.0 m/s tackles head-on an 80-kg halfback runnivs18ph,)r ads ng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conse9p1m 98p18 fyhdb 6r6dofzmunrved, then which of the following statements is true about kinet8dufbh8om6z rd 9169pf m 1pnyic energy?

  When is kinetic energy cog zzy)yp16m )unserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 v i-i xw*q4af0neh,n8 ball moves away with the same velocity as the cue ball had originally. Thexqaw-*0fh48i en nv i, type of collision is

  When a light beach ball rolling w2 (uvj:0pkvw++oh+2se( e.s-kl p oyswr yz0bith a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's spe v+ozy wjv+k(s 0ohl02+ s.e2k yb-s(:rwpepu ed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right colli14)lg-khfp i6u q o7 qsghc69zdes in a head-on collision with a stationary bowling ball in a friction-free environment. I h-6q 4)hkop 1ug qfzsig9c6l7f the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a sp9qe5 o tife8:s,-jmp ly; /wjteed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped/; p ij8te:-9wt oelmyf5,j sq ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light obj0z(qm0ev3u x):iqdjject at rest. The collision is elastic, and therezd0 qxej(i )j:vmu30q 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 aowf ocu*5(vgf( xyz ( wg. -msi(4.zib8xk0hj very heavy objectgjy*w 8 u0 zhio-im((. bcvkxzo(fs4fg x5w(. 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 collides head-on with asa8 (dfb2d1ci yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after thicb fd (1ds8a2e collision?

  A very heavy object n7r l76qws 6a;jlcjq .0g0u fymoving with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The gq60wlqf7; ljn7.a u0 6cysjrheavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momecnj ;4 t7e5uowntum is conserved, then which of the following sta uc5nw 7;e4ojttements is true about kinetic energy?

  Two objects collide and stick together. gf c1jh;/wrr2 Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It5)o ,x mp9nejt collides in a perfectly inelastic collisi 9,ejt n)x5pomon 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 object eakzf :-wh9 .a1bzxl z5xperiences5zzh a:91bl a -x.kwzf the larger magnitude of momentum change?

  In a game of pool, the white cue baldht5w7lq(4 zt arhy-/l 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 unequal masses, M and m. Whicr 7ty iw5 fdq b/pv-4bp4k(k.zh of the following statements is falsp .(pr-v b/y tiz 5qkkd74w4bfe?

  Which of the following is a ftqj+1sxtgo mp f*;t,2alse statement?

  Tightrope walkers walk with 0a+wxshhht4 ro393 t ea long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittab)+ g ht6ip*fing the ground. Neglecting air resistance, the center of ma 6f)+gtapb ih*ss of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-fre9 xervchui(l.3 n933af m6rpye road. The collision was completely inelastic and both cars quickly came to 6uxv9c . mh3fn 3laye3(rpir9rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second fe pjbjci -sm6(m o2,v5ffh8.law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at *trpdn zm;xi; d8u;z/ 35 m/s?

  A 1200-kg ferryboat is movb3 l(8lc kau d0:e2u(orr i0xoing south at 20 m/s. What is the magnitude of its momentu0: drauoe( o0ilkl8cr xb(3 u2m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum whenlo-a: b4x60b+ gqlnub it strikes the gr4lq+ nxbb:o60agb -l uound is

  Two identical 1500-kg cars are moving perpendicular to eal xx 8sdvya3*4qi)na/d 0 dul,ch other. One moves with a speed of 25 m/s due north and the other moves a/xudad8d q, x4y3 s0an*)illvt 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,qty3fajj4+ya8kd/ k 7 strikes a wall and rebounds akkt+3jq/j7 d 4faa8yyt 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially+s(qga hxnryb aw:)0/ moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the op(0yg/ x+shwaa :rbqn)posite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basi ,22/cl;i)yvx xo)sn ah 5twyeball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontsx)5, ca/yytw; lh nix)o v22ial 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 s s 9c351gle8o z)vilvv4zbhei /u63cstationary when the esbi vsicg3vh85/leo61 z9 cz )ul43vtether 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 the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a sjy;9 e0,b+tqij(mr fj1fru 4large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude 4jj90jq rfy(s+em,ir fubt1; of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), who(:*qv4 xne vvn is standing still, with open arms. As you collvv* vne:nx( 4qide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to t4b 1 *akpku0hbhe right along a level, straight road at a speed *hb0bk pkau4 1of 6.0 m/s. It collides 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 into the rear of a stopped car than17qz wymdi4pj2 casa3m 2(w. t has a mass of 1500 kg and they stick together. What is the spee2 42aqjznw iadmc3psm(1w .7yd of the cars after the collision?

  A railroad freight car, mass 15,000 kg, cn5kr 2-brho1x1(4o6nylskf 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 sper1 obl4h-csn(fk25 nx1k 6 oyred of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a holp3f -2u.nqe tyy 4vg*rizontal 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 -yl4u2tnv 3*pqgf. yefast will the car be moving after this happens?

  A 60-kg person walks on a 108j6)o cefxhqr;0m t po;v60vd0-kg log at the rate of 0.80 m/s (with respect to the log). With what speed doesoh6v0 )mr0 x;cdo6q jv8pf;te the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on ac4u gh x/*8kbmn object. The force suddenly increases to 15 N and acts for one more second. 8 4/gc m*kbxuhWhat impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.c6:ucev+wo u40-kg object. What is the object's change of velocityu:+ 4ocvuw6ce?

  A 2000-kg car, traveling to the right at 30 m/s, collides with rui5 id:wm8xioam 1(6a brick wall and comes to rest in 0.20 s. What is the average forcea uwd8:imr 1i 6mi5(xo the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back al bt y41cxsts-,ong the same path, and at the same speed. If the bat was in contact with the ball for 0.10x1t- ,btsysc 4 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 t gcuzg/ /4a2abd/nb(dqk u7/phe ball right before and right ang/ 4ad7/qkc/(2/abup u d bgzfter 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 the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullei3li345gjc2 mjyo;s pts, with a muzzle velocity of 750 s 2p5ijlm34jgi3;cyo m/s, at 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 order to knoci nvh3cz+qr-d5uvt 5it/. bb5k the door down. This requires a force of 1000 N. If the hose delivers 40nv35 qvdci.brh / zi+5-5uttb 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 at th +.f ;8qa0f-z0 znhxv v.fki37xv odppe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it e f0p3ndzffvz;. h.v a -+i7xo pvx0qk8xert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s a m 5pviu;jy* 0temi o;e6k.jg6fter 3.0 s, when fired straight up. What average thrust force does the rocket engine exert?uj5met ijpke6v. gm*;y06;oi

  Two astronauts, of masses 60 kg and 80 kg,enf2t/qypuh584q pbh n8 ig); are initially at rest in outer space. They push each other apart. What i;gh pnnph58eu tq2)bfi8 y4/q s their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with aq3rh323hkry7n pc ihp8v4e b2 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 ae 3n2y8 bqphcp3r 4v72hkr3ihfter the collision?

  A 0.10-kg object with a velocity oa*5p 3cshc ngdc80l: of 0.20 m/s in the +x direction makes a head-on elldc0s:hgp85 nc3 oc*aastic collision 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 intat z4( m9:uuefo a 1.00-kg block at rest. The bullet emerges (the bullet does tfu:(9 umae4z 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 alpha-partiu7u)6 islgokt-teux: ice) 5 9cle (which consists of 2 protons and 2 neutrons) moving at speed v. Ifeo 6 -t)lgi:7t)u9su5xue ick the collision is completely elastic, what speed will the alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 mubdls y*..qy2ormah-0f xj4f(1 5 z(melfc 0k/s collides head-on with a stationary ball of mass 100 g. The collision is elast-(l .f dkxy(a lr45*sz.1m ey0f0h2o juqmcbfic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 8o u17ty(yrvj xc7m-d4hyl/d e 42 fzo3.70 m/s collides head-on with a 200 g ball sittcy-vy mzxd4uhofr7 (8eyt4 o/djl7 21ing 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 collides head-on with a 3.s1 -u4qez7bzt 0 kg mass at rest. If the collision is perfectly inelastic, whazt4q -7 1zseubt 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 in a ve i+e;c(sea, 9lanj*y pfjw*r80j)a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost f0ps+9neaar(e yw8j)jvc ie*l;*,aj during this collision?

  A car of mass m, traveling with a velocity v, szn1l 0trp kpu1l9vx( (l5de;yye 1 z,ttrikes 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 i ve1y(e0lu1pt znz; t 5,rlyp9xdk( 1ls lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itsea1 dlir29r8 frlf in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block comal9i8rr 2 1rfdbination 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 tjh/(jp )0icq at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/qp j ht)c0/(jih south. The two cars stick together after the 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 wnhn :u8 ,zj.t okips55ith a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fisk j5pn hnot8,5:.u zig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level/ rvh pcv7s7(8vhum;:hyk cz ; frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with mr(skhc:7hz;8y v/ m;uv hpvc 7omentum 10 kgm/s. They make a perfectly inelastic collision. 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 p cza-g )ge.d o4rq/d1velocity 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 withc1-aeg od4 /rgzd).qp 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 the origin, and a 10.0-kg mass sits at x = +3kh6hhrkjj e2 r./tzk3 c0k )q 21.0 m. Where is the center of mass on the x-a h3)/ejh 0k3kr62zj rcqkh .tkxis?

  The center of mass of a two-particle system is at the origin. uhsf(owiy, );2u k hs3One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is tw 2uofh(, k)u 3shisy;he location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2hr5 ke 4nbyo049vepslm0 0xj9.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0)04romeb0y pj95n9evk4l 0xh s. Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located a15dq in: ar(vqt (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the centqir d1q( a5vn:er of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is t: ijkaszjg 4eh/j7;+68vtggpositioned at (12, 0). What are the coordinates ofj8a+h4 kj6 g:s ;g7vzj/teg ti 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, 0)?

  Use Table 7-1 to calcahunm20ne e+h tvb9 .5fam h7;ulate the position of the CM of a whole leg including the foot when the leg is strhfm7nu9m 52+b nehv eh;a0a. tetched straight out. Assume the person is 1.60 m tall.