What is the SI unit o )kkhudesmg4l, b4f:. f momentum?

  When a cannon fires a cannonball, the cannon will recoil backw9i vp w7jyo(cge- 8r3card because the

  A freight car moves along a f u 2up.,fow.ltrictionless level railroad track at constant speed. .2olp utfuw,. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. Whatndt9qk qhwqw r9 s*,py:k)n-) happens to the knq p:hknqy st,w 99dr-qw))*velocity of the sled?

  A rubber ball and a lump of putty hav.eno9dkq3.8co5 gpe52czca * y ixhm-e equal mass. They are thrown with equal speed against a wall. The ball bounces back with near cc* ox y a.9m-eko5gi2qz8cndh5 e.p3ly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass mn3 r3wm, 1zkwtbm,;xo is moving with a momentum p. How would you represent its kinetic energy in 3wtr3,kxw,m; n 1zbo mterms of these two quantities?

  If you pitch a baseball with twice thevj3)95uxajr)ctuj g. kinetic energy you gave it in the previous pitch, the magnitude of its momentum iuj3.c59aju )x tgvj)rs

State Newton's second law in *a9b g y81fq-vu: d yky70qg sd/h4q+dfofdq:terms of momentum.

State the law of conservation of mo4t n4 49pcqwlhb8mgcs ake.84mentum.

  The area under the curve on a Force versus time (F vs. t)a*g-(gmw *y abbb2nn rm7 r7f6 graph represents

  Which of the following ismeanyvh.dx*l52 4o l) an accurate statement?

  A small car meshes with a large truck in a0uw( mu*j.hnv 13uyg.u,9ckwxk) y oa head-on collision. Which of the following statements concerning the magnitude of the average collision force igum cu..k(a )uvy oj*k w13h9nyx wu0,s correct?

  Two equal mass balls (one red and the other blue) are dropped from okzyqn//( d25x:ilgq the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitudeg dox 2y:zk/qin5 lq(/ of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, col12s1d pe0 ljqwr0ut+j lides with a stationary bowling ball. 02pd1j0swjuqtle + 1r The 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 bounce off each otherskm )8t;bhcuu *4; sra. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-onqxhu sy -syq3l /z:o/l6q,kn9 with a 6.0-kg object moving to the /6y ls,o9zql hskqn:u/q 3-xyleft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbacku1s /wgeju rtu1-z g wuq;p+ zn9*4ol- runn g41utn wzuezo+1g -q-r9wp/ u*sujl;ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved,xlzga+4ukxr5 mud/ 9t, ui;( v then which of the following statements is true (iu4um/d+t,v59rxuzkx a ; lg about kinetic energy?

  When is kinetic energy cos uk / npsgp;6pn .h)rk+jdv93nserved?

  In a game of pool, the 8(qjthsnuf 4ouij/ b 6r9 97yrwhite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originallrt4 b 976h(/jqf o nr8y9uiujsy. The type of collision is

  When a light beach ball rolling with a speed of 6.0 ( uqid co:5bgk knj q8385*mgam/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision wilumgdk bg8o (kcq*jan3 8q :55il be, approximately,

  A golf ball traveling 3.0 m/s toh-,(:nck /f sd* jqtnd the right collides in a head-on collision with 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 i-d nc,q*(dhs tk/: fnjs

  A rubber ball with a speed of 5.0 m/s collides head-on elastically witxijy f+--8 je1vhnw+kemid (/h an identical ball at rest. What is the speed of the initially stopped ball after the colliswfm- k+h xied/vn- i(je1j+8yion?

  A very heavy object moving with speed v collides head-on witkt9 ymaz:-7hc rv5,mv h a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows dmthr ,vm -5:y9akcz7vown. 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 objecp3xp6 l7 gs5a3dsu)/ o7osxcit at rest, in a frictionlessxuooixdp37c s5s6) 37 als/p g 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 a ye0e+5kgk :fs+ clen 2e4 nnwx8 .wtb1jellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the e+c2:enebn0jw l. kxf+kn5 w4 t8 gs1ecollision?

  A very heavy object moving with velocity v collides head-on with a very lightr o, i)fvq9snqkds-fj.(3ow8 object movijw9,.o8n ssv rf q3f-ok(d iq)ng 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 colli sop /0(u1 t9gf)kvkww1lw+sgsion, if the momentum is conserved, then which of the following statements is true about kineticgl) (w1k+wf0u 1o9p/ stgvwsk energy?

  Two objects collide and stick togep-lpjj sk6nq30 98qrk ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides 24:o yocrpc4w6mxpd8 0:rljp in a perfectly inelastic c6p 4c0wm2pl:jrdcr4op oy :x8 ollision 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 experiend kh2rlz3*5w mpd00o mces the larger m 0d*l pw05mzh3mkrdo2 agnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectsws 2 p(tq)j5cbn h8 opyk8a/*ed 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 isr7p fg 30v7d9sl lp7se fals30d9v7 s p gflse7lpr7e?

  Which of the following is a false s 7n*ltoc w4r8btatement?

  Tightrope walkers walk with a long f5;nacu4dhd j/ /etm4 5q-rj mnlexible rod in order to

  A plane, flying horizontally, releas,e+t+zkia.d c es a bomb, which explodes before hitting the ground.d k+ eazc.t+i, Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisionia(e(r2.v 1rh dzpzw 6 was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's centerrz6 h(avd i2e.rz(w1p of mass?

State Newton's second law forjk2jr (buo,5ps43 xz c a system of particles.

  What is the momentum of a jquv5kz:jlkd zp;),z+ m2z 6 a2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of iirq+c *g( e2htts momer(+e 2i *hctqgntum?

  A ball of mass 0.10 kg is dropped fromogedej r))x fcf 199qiq 3m7z+ a height of 12 m. Its momentum when it strikor397xdf gm1qc i 9q+fe je)z)es the ground is

  Two identical 1500-kg cars are moving perpendicular to eawd+seb wi4c/8ch other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Whats 8cib+w /wed4 is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wa-hib .ow ;geukvz 9x21ll and rebounds uvk;.wx1 ho2-iz9ge b at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ba2 yid5q fl09twll, initially 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 momentumdy q95i lft02w of the ball?

  A 50-kg pitching machin*9qj3)scjkgdgxu.fw 9d, il +e (excluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal directio*s k 3f+jj.9gx dd,wl)gu 9cqin. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space c8 xy2 :artgqh+b avy*+apsule and is stationary when the tether line breaks. As a means of returning to the cy*xbq+vr h+aya2 8 g:tapsule 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 large object at r)bf vgf +h+;fmest. The small object bounces straight back with a momentum of magnitude 4.0 kgm+;m+ hff bv)fg/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate o,4rh9yi0obsx /9cj(i.hoch u peon .9n ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while hol9c99 e(.hycr bpushjii o0xo /4,n.hoding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the rr*b 4r8qbl3 6 mlo6pnuight along a level, straight road at a speed of 6.0 m/s. It collides directl6 qobp6*ulnr8m 34 lbry 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 t6ej wq(c* i k).wbe13e4yjxf *ak/ey nr7p n9ahat has a mass of 1500 kg and they stick together. Whaj*qpr9w awkck.nf/ e *)14(bjnyee 36 7ieyxat is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level tfuvbw0 rez/7;rack 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. wr/0;fbev 7uz What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with n bf 9r.jq.ru (dgnm)sfel- -9cegligible friction on a horizontal track with a speed of 10 m/s. A .n9e)u s(q ffr-lr d9b-.mjgc70-kg 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 a 100-kg log o2xefd7k3tn42 8oy-* elsi asat the rate of 0.80 m/s (with respect to the log).os2k4e3sa -l 28nf7yoixtde* With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s o1ix j1c78.qt2k oi zxr)i bxb/n an object. The force suddenly increases to 15 N and acts for one more j bixb2i zioc17 tkx8x1 .)/qrsecond. What impulse was imparted by these forces to the object?

  A constant 9.0-N netdv 494 b ;wnbfckl*r0f force acts for 2.0 s on a 6.0-kg object. What is the object's 4vwr*l bc ff904kbn; dchange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick waln8bj*r 2wpv:al and comes to rest in 0.20 s. What is the average force the car exerts on 2r*bvw n:ap8jthe wall?

  A 2.0-kg softball is pitche; m7kl svz8sv8d 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 contact with the ball for vm 878;klsvzs0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped oqx 3zxp8bewl1f4 )8 vdnto a 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, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the average forw88 d1)zqx plfv3ex4 bce exerted on the ball by the table top?

  A machine gun, of massg.) 6 /bstzyv*bz khp; 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds gs6y* .;)/hzbtkbvz p per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burnianv)qp.4u k z9ng 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 wq) zn4k.pa9uv ater doesn't bounce back?

  Water runs out of a hohlas nx2sx8// rizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, wh/a/s8snl x2 xhat average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s aftuv5i2lxk, .jv: 4c looer 3.0 s, when fi xv.jlc2 ,vuo l:kio54red straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of massh+/huf rlpu/2yn yo70es 60 kg and 80 kg, are initially at rest in outer space. They pusy ul0huforhn +p//7y2h each 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 speo )0rel4- ul/ 6-u nupjli3joeed of 2.0 m/s. It collides in a perfectly elasti l/-ioj lr46-nue0ue o)lujp3 c collision with a 6.0-kg object 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 +x direction makes a he::-r c;d+lkv 4ugxby ead-on elastic collision with a 0.15 kg o; lku: +ge:yrdc-bv4x bject 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 firezfnl i-r/* 9/i qnc,tcd into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the bloc-9 ltcir,z * /cnin/qfk right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (wgv,qafo9k 21* mr7x jahich consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elasticg2m ,q7ok1 xar v*fja9, 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/s col37lacq:exv 2w4gs 6;4is+joq r( j iaqlides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immedia6(vwjq72 lgqr4c;seai3a:sq4oi x j+ tely after the collision?

A ball of mass 400 g moving toward the east with dsfk-+by4iua yg +oc/z, g* 7z(2riaya speed of 3.70 m/s collides head-on with a 2dk+o /-7 24a*(ybs a+iyf,zycrzuigg 00 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 collig sys iq5ir66m.acid t/k y81*des head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the spe1csy6 q5 i/8rk gi.*tm6d asyied of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s cd9 a lukgxsk* 5)-ym*gf* 4wdzollides head-on in a perfectly inelastic collision with a stationary 2xsdkzy5*9f- 4lkw **mgg)au d.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strike r,r0tx0lrn8, jbo3 ) + )pulcms+amnws a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of tw3,mjnr)rbal tu0 rs 8mo+c0lp ,+)x nhe initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in midzmhk08j.9p n lx4 7,t2.kf 2zxj pia 2.4-kg block f.x24 pdk,himx0t 9kp.jzjnm l87z 2iof 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 a 3000-kg l wv+iukb) g1)car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speeu)+ vi1blgwk)d of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with xd fy+-8c mxa28u+*i do8enws 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 directim +e - di8xnwyd*aucox8+8sf2on of motion of the cars after collision?

  Two objects move on a level frictionless oc p2ec3iqhop:y18 /y surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make ay o pqo2i:cyph8/e31c perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward aeezz,oyb1 ( )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 speed of 10 zze b y)(oea,1m/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, an(qf. 6ww7q) t8pscpxvn 2b(eb -nt4 zjd a 10.0-kg mass sits at x = + 21.0 m. Where is thp x2ntnp(-cqj 6 bzte8wf ws bq).v(47e center of mass on the x-axis?

  The center of mass of a two-particle system is at the odtiic. qtlr *i4i;0q/c+ ,c,lfrk e4erigin. One particle is located*cl/ qte 0,irk,cr+ed .tq44;lfiic i at (3.0 m, 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 followf9 unfc9t 6 :s7glm8oes: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the 76 c lu:8nfft9 9gesmocenter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are l8()b7xhfmykfl + dvj(ocated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectivelyb+d8y m(vk(ff lx)7j h. 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 1.0-kg mass is positioned at s y*sh5a-1 i+vlwc.nu(12, 0). What are the coordinates of a 4.0-kg mass which willc*1 un wlh5.vi-assy+ 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 th r:t c1cyx *a8z:,;s/xsp hjete CM of a whole leg including the foot when the l1tc r*pex;hxz:t a/yss8 ,:jceg is stretched straight out. Assume the person is 1.60 m tall.