What is the SI unit of momqwb * r0+5ylhmentum?

  When a cannon fires a cany:jbtwg383jd+ l3.vjsq1mc u nonball, the cannon will recoil backward because the

  A freight car moves along a frictionlehejo:3:u y 3g2 l+norbss level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to theyhl 3oj:eu3bg :r2on + velocity of the car?

  A child falls sideways off a sled while sledding oeokff-ot,j9/:a yyuq bj),- tn frictionless ice. What happens to th- )bk,9f/,jty ueo fq tjyo:a-e velocity of the sled?

  A rubber ball and a lump of putty have ewlrx2zb3:,;xgyox1gch*ds r, t5gl,qual mass. They are 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 objectsl ; oz gr,y:ggxl,*,12trh xd 3wcx5sb experiences the greater momentum change?

  A sailboat of mass m is moz:n*g*8j5rqj3cwgol ving with a momentum p. How would you represent its kinetic energy in terms of the 3*nz* gwl:5 8rojgqcjse two quantities?

  If you pitch a baseball with twice the kinefklg2 wjuo4.- e ty gj0;;9rtatic energy you gave it in the previous pitch, the magnitude of it g 9;-oj2f.teurkta04w gy j;ls momentum is

State Newton's second law in ter q58t uvbx,-zdms of momentum.

State the law of conservation of mouv . v(rr:hhd-mentum.

  The area under the curve on a Force versus time (F vs. t) graph repra: bl 5lhtns8je9tr.2 esents

  Which of the following i+kfixtmuyh.t8xd;sc8+no, m 57 fvn 5s an accurate statement?

  A small car meshes with a large truck in a head-on collision. dvc54cq kf9zv oof672djk5- cWhich of the following statements concerning the magnituf vk zd-2oc d 9f46c5c5ovjk7qde of the average collision force is correct?

  Two equal mass balls (one red and the other bf+:flhjf+7w k/im *my lue) 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 impulse during its colj/h+fm mf+i w lky7:*flision with the floor?

  A Ping-Pong ball moving east at a spj,bm4ep6 4v1y x r,xjzeed 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 slowly ,mjxr4 vp1jzby4 ,ex6 to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce offboo2 :28boz+m2 cqqap each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-t2 5 islg62oegp, tou9kg object moving to the lgge22to56u il,t9po seft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on pl-) j3f 6posfan 80-kg halfback runningopl)fpf s-36j
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which o47h (a+ yqn8jka;xonsf the following stathonnkj84q s ya; x(a+7ements is true about kinetic energy?

  When is kinetic energy co :2.urzhctpe+ nserved?

  In a game of pool, the white f)b*h/iy grsu0*j n 2scue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. Thsj *ify s *)g0b2ur/hne type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a he oqod /5xey(cqv3* l+udcb8w ouh9 i23avy exercise ball at rest, the beach ball's spe(c bdwycd3u 3xq+i8olh/9u voe*5oq2ed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on cola pxeh-pq 0 t(phjt(- e::*gpulision with a stationary bowling ball in a friction-free environmete0-ph*pgh(u p ptae :-jq x(:nt. 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 collides head-on elastically with an:c(: : wu h,ynnc/ubc-zw3m qn identical ball at rest. What is the speed of the initially stopped ball w3z c-u:cyhu: nq/nnc(,mb:w after the collision?

  A very heavy object moving with speed v collides head-on with a very89qg; vg8wo gww7lkm7 light object at 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?g7 o98wvl7kg8;qw m gw

  A very light object moving with speed vuk2sq y6d5) ze-ft+ nw collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision uysntqf62 z e+d-)wk5 is

  A red ball with a velocity of +3.0 m/s collides head-on with a tul)-5oubkc+mh 9 az 2yellow ball of equal mass moving with a velocity of -2.0 m/s. What is t5a2)-zcl+ok thmu9 ubhe velocity of the yellow ball after the collision?

  A very heavy object moving with ve:mzy+rzrjt nk0r g6fzx ;z8 m1h2jy .2locity v collides head-on with a very light object moving with velocity -v. The collisio+ zyjzrrh:zkf6 .x2r8my 1m;ztj 2ng0n 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 momentumfao*p +q21jjc is conserved, then which of the following statements is true about kineticqj+fpj*o1 a2 c energy?

  Two objects collide and stick togethkj(-hi4gf :l ny27vvher. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s.r 64lzvgzaxo/ph :e .. It collides in a perfectly inelastic collision.vroa.:px h6lezgz/ 4 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 objen7 /zaxl-ay p k3z1tvi5 -w7qsct experiences the larger magnitudez z5t--1y sa7qwva7/ix pl3nk of momentum change?

  In a game of pool, the white cue ball hits the #9 ball andv :)mmbsmgw( +godgy1cx*u5eb +9ch ; 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 st9m 2y.vq gshqnrj8 l+2 b:h5+lox/4o-exhcwsatements is falsec8s.soqlehh xr b9 gmylv /42oq2+j-x5:h+wn ?

  Which of the following is a falseoyr o.-*hyf6tj+:i ss.dm*sb-rq u3e statement?

  Tightrope walkers walk 4nt- +yml dat x4/,ti:hwirj*with a long flexible rod in order to

  A plane, flying horizontally, rf w sih;hwmxp55*gn546bd/f , : izkyueleases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the e5hyn4w*f: 5xp, /mh5 d;uigkfiw 6bzsxplosion

  Two cars collide head-on on a level friction-free road. The collisico9si z)4wy.kon was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this wiz)9so4kcy. system's center of mass?

State Newton's second law for a system of par zr*pimf/jq :kc+kl-15v u2g4dq iu/tticles.

  What is the momentum of a 2000-kg truck traveling aty0hc k5fja e7(*ybx5o8f 9lpe 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is thed;emr3 p66vjlg(drn80aq 9o q magnitude of its momentuj(8v qq dn0gr;r366emp 9aodlm?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentuj putoee4 vr w p56 h)5ksnr4*b/3ln(jm when it strikes the gro vbn5ne *4kpjp 6so( th )w/jer43lur5und is

  Two identical 1500-kg cars are moving perpendicular rv.ii5; pr*a3.w::rjpvmpk cj n;ql-to each other. One moves with a speed of 2r.-p 3npk *q:vvap .;cl:r5mjrjiwi;5 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, strikeola7ezmm;pr8kl, y )1s a wall and rebounds at 24 m/s. What is the change in the momentum of thy ;z8 lk1pre7lo)a m,me ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a ra1 8(of+t+sfc 0wfmrbr/ j) qqvcket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the changc +fo/ m1r(qf0 8tv+sj)qrwb fe in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pla acpt.bn9)y /98b taegced on a frozen pond. The machine fires a 0.40-kg baseball with a speed obae9nt a./8gp)9 ytb cf 35 m/s in the horizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spx44 ijx*n:, x:vd s5utm+nve mace-walking outside the 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/x*xn:idx+4m envjts,uv4 m:5s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentudd itxm5: (i9um 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude tmii95:u(d dx 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 t+v9w-xy;jwh k o greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move9yvw-hw; k+jx off together?

  A car of mass 1000 kg moves to the right along a level, straight road at 9 pu) zn:h dw-aby:kg,a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the tot:wk:-du,ahyg b9 nzp)al momentum after the collision?

  A 1000-kg car traveling at 25 m/s runqma4blo r) cjw6/vgmslg8 d;2 1f,j*u s into the rear of a stopped car that has a mass of 1500 kg an*1g /qgdm2 w,avl 4u8;br c)6msj lfjod they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a lev8ag rki+a 7uf)isq)juo 45k3uel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initial3i7u+ ojkqig4a u)as5r k)fu8ly 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 friction on a horizontaw2e -o+ j4wzac3z88ahpych(al track with a speed of 10 m/s. A 70-kg stunt man drops straight down a disw(z a+hpeaja8- zw h4o 2cyc38tance of 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks oy ajp aiizs55+*4mgy er2u1y 2n a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with rs yr*epmgi2yj5 ya 5 21z4a+uiespect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sudn mr r-e/tdnt6v431cz denly increases to 15 N and acts for one -rttvnn 1 3e/4rmdz6c more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force actnkipdbc:)/r+co qha snwl 8 ++at/,(cs for 2.0 s on a 6.0-kg object. What is the object's change ofc+w+dc/ q+rh k bnn(ap)/ic 8tlo as:, velocity?

  A 2000-kg car, traveling to the right at 30 m/s,fnrf+ kx/bn. 4lj ljpa;q 03u7 collides with a brick wall and comes to rest in 0.20 s. What is the aver/r ul+ nj3nf.kxl7ba4j; p0qfage 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 alzrwz 11o; k4u;xl rhhj 3ot)g;ong the same path, and at tj11;oz4 ;hluwxgoz)t 3;hkrrhe 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 exerted?

  A 0.10-kg ball is dropped onto a table top. z; jyw,xoo/*j-/.hqkh.zn a x 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 the average force exew,;hxz a.jkqoxh-ynj /zo. * /rted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle velc mf*rb7 cs;+6u8h46 tfo 7lwohljl)rocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun7o6cohc8twlm j f6srhl4+rlf 7 ub;) * mount?

  A fire hose is turned on the door of a burning building in order tox ;at4ivhc*(0+l yfd oy4 ef*0wzyao 9 knock the door down. This requires a force of 1000 N. If the hose delivers 40 k tl y0 *xowdy;4h avz0ef+(oy9cf4ia*g 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 the rar1zaw v;koe,h )jy.: 4k zh7wgte of 120 kg per minute. It falls 3.20 m to the ground. Assuming theg)47;1z kje,ravhw.z h:kwy o 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 p6e6y++m0ygojelal+tfrp,uj ;fa ts6* w u 5,of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket eng; ,l5e+j0* spp ye6f ujwmaf a6yog6t,ru+tl+ ine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initial4tk atqfahb1+)a.mwl-fq28k/c 4x gf ly at rest in outer space. They push each other apart. What ifqk4 fkl21ab 8wa fmg ca4)/txq+t h.-s their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the righi- cw18kj bejon0vfr-3 bc9fja )k:0zt with 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 kinejbc: jfekc1v8 9iw ra- nbjf0o)0z3-ktic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction n;o, 5sq9un u/ vr)mswmakes a head-on elastic collision with a 0.15 kg object initially at rest. What is thenn quuws rvm /so9;),5 final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired intojbst rv7nk 4 w6rh/f7: a 1.00-kg block at rest. The bullet emerges (the bullet dwfk 4 v7h7bjr/n r6ts:oes 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 headfn1( tuu72j rzzr:5od w35e kz-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 theoj1rw f3 eurz5tdzk7( unz 5:2 alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s couqj vlw uz a3y2c7g(;z9p8z77r7v l vqllides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the spglp73auyc9q8 wj 7vvruz ;z z7(l7qv 2eed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed oq0o:) 1e* s rlltko0jrf 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisio* okjlr0l)s0e1o trq :n 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 /gfp u+jx+9meb6dh2n of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collisioej6+guxdhp /m+92fbn n is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the eas9l9n(c)adc em t at a speed of 4.0 m/s collides head-on in a perfectly inelast lc99dam() ecnic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a vk)en+ fxmk j:jgnp*0;sch *5 lelocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fracti)p nfxkg*k0j jhc;:+m sn 5el*on of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical diai) ,h42jvkpek3r ip.rection buries itself in a 2.4-kg block of wood a rest directly above it. kep.aik v r,24h)pj3 i 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 zxtejqp-+- 0j6l0dcd wy,)v jbjj7 q6collides 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 z+,0l7wy6 c pjj0- )tdj bevjqx6q -djcars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kgv9 au)8ges+qu/t;lll car traveling at 60.0 km/h south. The t9ls teal+ /ql8gu );vuwo 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. Object A moves east with a mo-5) cgm7wyqr: asldb-mentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the m sr-:d5qybmgl)ca 7-wagnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the Nor)f2 mw8+waebq px/5q wth 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 a mass of 1.0 kg. ex+p /f mbwqq)5aw28w 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 a j 8/nm gxl3ziz29f5tqt x = + 21.0 m. Where is the center of mass on the x-axinj igm9ql zf2x58z3t/s?

  The center of mass of a two-particle system is at the or dullafo c2mfp/*j8kt04p:e7igin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the lfao04p87jtmfl u */c:dk epl2ocation of the second mass of 3.0 kg?

  Three masses are positioned as folwi fn )v47q/n v9z,aoylows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0).4w,foann9 ) qziv/7vy Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are loc8et ei8 ef/dtu20gtq 1ated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.08etde20 qfttg1 e /8iu m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1. lu+ls 7*j6ikp) gy:sn4l)dbw+hwd 6k0-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, g6ksl+:kbjh d7)plw+*l)in4 w ydu6 s 0)?

  Use Table 7-1 to calculate the posit07 +oa 9oac pqfef)7/x 2t gt;oue0uflion of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.l)o77f fuqu9ac g2oatp0 f/+oe tx ;e060 m tall.