What is the SI unit of momem84r qmxxq ;c0 -7a6 yju, bwg5(chuointum?

  When a cannon fires a cannonball, the cannon will recoil backwai4g p-m5 o o,rd2sb jf.se:jfxtd.j75rd because the

  A freight car moves along a frictionless level lpobdb,(f0* q railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped intobpq*d,0bl(fo the car. What happens to the velocity of the car?

  A child falls sideways off a sled*tr p7riepd.(l4r :pv while sledding on frictionless ice. What happens to tplir:t*rr.p7 dpe (v 4he velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They a94uj5 cttc ii,re thrown with equal speed against 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 moit c45,c9itu jmentum change?

  A sailboat of mass m is moving with a momentum p. w n 5oh,xvol64zky,i 1 How would you represent its kinetic 5 xn o ikwyhz,4,6lo1venergy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic p6 e;y,ah0qr,pg3.kk 8+ x qujjwy(tb( f(wuj energy you gave it in the previous pitch, the magnitude of its kqkx(ey gf; 0a (,pyh.qjjw3(wjp6b8 , uur+ tmomentum is

State Newton's second law/u ue5.j r3aej in terms of momentum.

State the law of conservation of momentum.z;f)l;wlty07e r l 2m2xvno-ex px/a 7

  The area under the curve on a Force versus time (F vs. t) grapd 7s/sgc d;cl1h represents

  Which of the following is acwelz29)uh.p p4 0yqa n accurate statement?

  A small car meshes with a large truck in a head-ok +pu dx**mm clgf342jn collision. Which of the following statements concerning the magnitude of 4cmux2+ * mldjfkgp*3 the average collision force is correct?

  Two equal mass balls:twcamxd-. -mjs)ji3 - 1bhs b (one red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebouba)m jmhc-x: 3 sdjtb-s-1i.wnds 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 with a +y1e8v9s.k)pe av+x b 0( tqcrn vukj8stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves vern cs.+p19vb ) e8vx(j ekav8r0k q+utyy slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off eadgkqw mq3ty6fqx ) z95ew8 r29ch other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on +v h+* irh4+amasq4nywith a 6.0-kg object moving to the lrsma h+h+qy n44v *ai+eft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker mvnd8o8 11)jx 7l 7zbd5 jga0rheewmt +oving at 2.0 m/s tackles head-on an 80-kg halfback runn8 tjvx8hr)10degb 71 zd5 je7nma ol+wing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, t*4hn.t0yy ka.,z oo:re(a(wmwm 2 mtdhen which of the following statements is truwmr 4aho0yy* .tmaw, : ek2(. d(zmnote about kinetic energy?

  When is kinetic energy+ udu6rqr inqg27f 0/b conserved?

  In a game of pool, the white cue ball hits the #5 ball and ston et0(bq*yga(jmw/ t)3b yoo2/t,frdps, while the #5 ball moves away with the same velooryt emgq(dw b )t0/yo ft a/*(n,23bjcity as the cue ball 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 extqe vy2(16ac l k(q,cxercise ball atec lav yq (2k,c(x16tq rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides i.k2:t+oj)c n .j nrq 5 letsicz5+lj6on a head-on collision with a s)e. jtl5i snzc l.rntjqo256+ j+:koctationary 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/cmg 6- )ozq+fedeyqv)0i8 do(s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the+vqd)-d0oy6q 8 m (oec)gezfi collision?

  A very heavy object moving with s2-lyb:gl/q w:p7ue wnq)p*zi peed v collides head-on with a very light object at rest. The co2iy:gw /7qupp b):l -zq*e lwnllision 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 collides head-on with a very heavy obje0ymq39x7z-k abzjit 5ct at rest, in a frictioaj kbz tm-9zxq7035y inless 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 h /aszyt(e*1u2 m/yv pa yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity ofhust* y 1vam 2/ey/z(p the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a veryc ;6czhon bem n.+.( gt;wkx-y light object moving 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 co cynk(6g.; ctomh+x.e;b n wz-llision?

  In an inelastic collision, if the momentum is conserved, then which 0rgrr7s( +ji1xen fa1 of the following statements is true abou1 sa 17jrx(i0fg rner+t kinetic energy?

  Two objects collide and stickr rckivnt;0 .y68nw* d together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfet ilgh+ k.jg p991pma8ctly inelastic collision with a 9 9gtip1l8p.hjmkg +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 lar x p2xy(n*/bzhge object and sticks. Which object experiences the larger magnitude of momentuxy*2/nz x phb(m change?

  In a game of pool, the whit:zd qtg.9uz+h8 zof,a e cue ball 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. Which of the following statements icch((3hsyj m l/ m,k;zmkts97/+s d:za dkb(cs falszjmc((smkbyd c, :s7a(sm kt+ c93/h lhkdz;/ e?

  Which of the following ia;6d5anw8xo i s a false statement?

  Tightrope walkers walk with a long flexible rod in oxcbomo ;riuypf16nb6 -(6p h)rder to

  A plane, flying horizontally, releases a bomb, which exc2u;r1c9ig dvplodes before hitting the ground. Neglectinr1 ;cdiu92vcgg air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on o.ze :t/9u+ce w -sxfm:2agvi yn a level friction-free road. The collision was completely inelastic and both +9w i/v:amycuz- f.2:et gxse 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 sm 8 as71erxo))m:w mri(+hxsdystem of particles.

  What is the momentum of a 2000-n95vu34o * uztan-gpocnb b4-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mands7+6gk ;k m8g la(argnitude of its momentum?8+g6sd angk(a7krlm ;

  A ball of mass 0.10 kg is dropped from a height v(jnku6nzl8h xlpz1 e*k8t.: of 12 m. Its momentum when it strikes the ground ik x.*v8k lzupn6 ht :zn(l8ej1s

  Two identical 1500-kga32;+fw vvnnnbu5b c: cars are moving 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. What is the total momnawn2nc5 bu 3+vb: ;vfentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wal8 uzze.)em4hrfw su91 l and rebounds at 24 m/s. What is the change in the mo1frsw9.4mhu)e zuez 8 mentum of the ball?

  A 0.060-kg tennis ball, initi)v tg+* mlktq:ally moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the )l ktm:+qv *gtball?

  A 50-kg pitching machine (excluding the baseball) is plhu(mc*(tr - rao9fj+waced 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 ac tfuh+rwom(-r*j9 (pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spacdnqyw,)ws2 / xq;c7aqe capsule and is stationary when the tether linycqxq/w ) d2q7,; wanse 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 momcdnuf;c /ajb)r zyr.4(v /i: zentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces stra bj /.dnyufrr)z(i;azv/c :4cight 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/si2 :ryt,jkf(2 1mwx zc to greet your friend (40-kg mass), who is standing still, withy2 c rwzx(tk,jm:1 2fi 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 a level, straight road att2uboc(o mro5- zm ld9t)4e ;x a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the col 2-oemt5 4mcb;o)dtrlou (x9zlision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stoppu(g oevxeo :.3ed car that has a mass of 1500 kg and they stick together. What isv(oexo eg3 .u: the speed of the cars after the collision?

  A railroad freight car, masy; lxgb; uf7qy/xd*2 ss 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a uxyyq gxs*/2f l;;d7b 50,000-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, rollh1j:jmi; ccu ve3;w*)+ehz ses with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man droc3;c)* ehis jvjzuh1 eem:w;+ps 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 l*k wlo;rw9 ;; z,zkcryog at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the shoreroc9zkk wywr*;; lz,;?

  A 4.0-N force acts for 3.0 s on an object. g4s9 jm 0di-kdd yfimuets:n1 ;-vv4f u-0px,The force suddenly increases to 15 N and acts for one more second - gd;dmtsp0vv0uimf,e9 4j u-f4: in-sx1ykd. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts f4.ozd ;jxfq e1ewuu- y0h8rov; dbc).or 2.0 s on a 6.0-kg object. What is the object's change of v-e;1 fx h .0obc).rzjdew8quyvud; o4elocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wrh hs (az8:xk;ith a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wall?;axh:r skh8z (

  A 2.0-kg softball is pitched to you,tgh36kpw -l r at 20 m/s. You hit the ball back along 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 - rt6hwklg ,p3of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball .l d1qs py7* w24) yg)kgyagh1wsmb t ))s0fsyright before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collisqyt)w2g* s sgyhksp7 )md)y1fgs a.l) 1 0wy4bion 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 muzzle velocity xed,0:kn6tuyzd1/ zx of 750 m/s, at the rate of 300 rounn1yz0 xdut/zx: k6d,eds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning bl s)9sran*f) 9c( mj iraa; o5a1lfb/duilding in order to knock the door down. This requires a force of 1000 N. If the hose defm l5 id)99ca*boa 1ssnrj/r( alf)a;livers 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 drainw h:o(q8p ah+ppipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force do8(+ pw :ohpqhaes it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 3ppzlr,;9 g3px jdn b,s, when fx l9d3;r,j ppz ,ng3pbired straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in ou ogd2 -em21qgcter space. They push eacgc212ogm qd- eh other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. goyv*n0-n 0r,tn 6bk2fdf 6bcIt collides in a perfectly elastic collision with a 6.0-kg object moving tr,6- tyb02b nk gvcdoff*6nn 0o 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 +x n:m+qr,a bm81y1mmt;h vvc;2qgz u6kdirection makes a head-on elastic collision with a 0.15 k, t zrv8 +anu16y ; 2mhqcm;gvbqkm1:mg 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 rest. The buspvaq.gr -hi 1o35fl6* b5prglle -sh rg1*p5fbv 6. 3roqglpa5it 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 rest, is struck head-on by an alxc 3pho),,3kub upb/ drxmu9:pha-particle (which consists of 2 protons and 2 neutrons) moving at d xup3r,uxo: ,c hp)b/k3bmu9speed v. If 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 m/tm(0 2)jfyjbunbj)p4s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the spen bt j)buj402)y (fpjmed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.700n ye c;3 1ilxr*ngn;w(8rb;yuru2ua m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasn 0lxr in(2*;bwy1 y;a;r8cue ru nug3tic.
(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 speew)k(di3fwva0w(q9 g i d of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the colii9q f a)(v30(gd wkwwlision?

  A 2.0-kg mass moving to the east at a spe dw0+4odk(syqx6bwancirr/ai fre r2 731,y+ed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during tn3ryfckd+/q2x7 (i,rsi w4aod+ rewyb6ar 01 his collision?

  A car of mass m, traveling with a velocity v, strikes a parkey/ 2yrb ny9enh;cj76 :c wpku5d station wagon, who's mass is 2m. The bumpe 6 rn hyy759pw;jcb2c: /unykers 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 213lm;hf+nj kh ;* 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 mnlj+;;h *hk mfoves 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 k98ugn1bv3 bptzdw wg /kw) 3)bm/h 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 collibdwbng8 p33 t1wwz)g)ku /9bvsion?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car )3at;s9zqprxwh54t a traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the dw39a h)tpa5q;xs t z4rirection of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A movghd c097z-6sg u/ tqbbes east with a momentum of 24 kgm/s. Object B moves north 0u9 zcdbt- /h7sgq6gbwith momentum 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 w5;am) pnls:x3db/ .5 rcivsy;mf r/g xith 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 a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect a5an)s.m vi;cx:x /fr5bgml p;3rsyd/ir friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sitspr ,a/ argjv/mq0 * -y9 c8*jcdm4xsgv at x = + 21.0 m. Where is the center of mass on thmcms* j 8v*, c-4p9qj/vdrx g0aga/ry e x-axis?

  The center of mass of od d q4gp4*3v4;nrhs ja two-particle system is at the origin. One particle is located at (3.0 m,vh;4sd* o4dgn j rpq34 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 (0x ea 72-b/cy1xgmtuncvc5 x9 +, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass 9 x+y2cn5vt x7cugbe- /cx1am.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1bapk28n8etaof 0b97 e .0 m), and (2.0 m, -2.0 m), respectively. What is the location of ea napeb8 o92k bf078tthe center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass ogygykk5/ a4;v0c5 iru nts 2)is positioned at (12, 0). What are the coordi g2iy;n/g40rsvoyu5ck5 ) a ktnates 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, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole z( cl bvh+c5g7leg including the foot when the leg is stretched straight5 lchvc7+bzg( out. Assume the person is 1.60 m tall.