What is the SI unit of momentum? +jzvbme(jh fx j1csg,3bt4.,

  When a cannon fires a cannonball, the cannon will rebg0+a xl5v0b b,5z ubqcoil backward because the

  A freight car moves alonj:,5+(gtzsi(wnk b u6 q s2pqeo9ud)u g a frictionless 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+)(ujtku (on,qsi6 dp2 95qzeb:wus g to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hato*a; gs i; 7nxna,7flppan;gfi aost*ln7x7; ,ens to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with o x o yviyt3vi6(n;q+v,.v a0nequal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which object ;.q3ov 0( na+ nv,yovitiyv6xs experiences the greater momentum change?

  A sailboat of mass m is moving with a xi dv ui;p1qewr,ebs*g; +6v3momentum p. How would you represent its kinetic energy in terms of these two quants ;, xvq1v grii;dbwee+u36*pities?

  If you pitch a baseball with twice the kinetic energy y n7mp exr142mio2wc l - .dgq*p4okx x94-hmtuou gave it in the previous pitch, the magnitude ofx-4op k.poi l-wm92q7 ntd urxmhc*x e4mg 241 its momentum is

State Newton's second law in terms e9o-5 v0qgipqof momentum.

State the law of conserv: 8wx,lm-w9u bt )tpxjation of momentum.

  The area under the curve on a Force versus t82du4 mq 7jj4gh z9homime (F vs. t) graph represents

  Which of the following is an accurat16p*jl vpzb2 1e tu0jke statement?

  A small car meshes with a large truck in a il )(filhu0/t head-on collision. Which of the following statements concerning the magnitude of thehui0(lt /)fl i average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from theh7 v9)3x yfire same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitudeh3y)r xivef79 of impulse during its collision with the floor?

  A Ping-Pong ball moviz-x ike4jf: r4ng east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces bacfx:4kj e-zr4 ik 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 a9oihp*6ey2s nnd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. Isi4ln . z6im0ft collides head-on with a 6.0-kg object mz lii.mn 0f4s6oving to the left 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 halfbac8ur+arx3nzy xsk.c5)if9 ql;k i8+ q9k;lczr3afr.xy) us5xnrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which 7u (king ys-n0 /-imewof the following statements-/ms0e wk(uiyi -7gnn is true about kinetic energy?

  When is kinetic energy comwkdr2q6dqxlrai0d ;ufs03*5 2pu x5nserved?

  In a game of pool, the white cue ball hits t- vv+ve5g9f tuhe #5 ball and stops, while the #5 ball moves away with fuv-9+evtgv 5 the same velocity 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 i v6-mqud s;.ygij.vc:)ki ,m f8ay8aheavy exercise ball at rest, the beach ball's speed afteu 8v d-ija8ig6ik)mf,:..y mcv yqsa;r the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right c o7f;bpnpzfel;od(10 67ne fp ollides in a head-on collision with a stationary bowling ball7d1 fep 0 z;n6lp(7p ;ffobeno 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 collides head-on elastt y.i1.oko y4lwp-op5 d/f0ut ically with an identical ball at rest. What is 0 yl-ifo1t.ou /pyw 5pk4tod.the speed of the initially stopped ball after the collision?

  A very heavy object moving with speerc; r)0pa uoi2nuf/o2 :izz5o*i dyx )d v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of theziruc2o 5z /xpd*o )2n: oaur;0yf) ii light object after the collision?

  A very light object moving wlvmvkd+2adcn5 *h+ :fith speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the f5:vdd v*+lak2 mhn+cheavy object after the collision is

  A red ball with a velocity of +3.0 m/s collidiho fj(kfmee:45 36f ces head-on with a yellow ball of equal mass moving with a vei:f653keoe4m jchf(f locity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lightxg lg/v m2zn1*sz y/mr+t6cefri1f ;,dy s(1v object moving with velocity -v. The collision6ryss+ *fntvdlg;1 1mzcixm,z (/gf2y1e /r v 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 collisimh)qg+em 9wi4on, if the momentum is conserved, then which of the following statements is+imw)4 g9qmhe true about kinetic energy?

  Two objects collide and st4jc d/w65rtax8xfvp *ick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pt(in qp z.2,)gav-n zqerfectly inelastic collision witg q(q.zt,-pnni vz)a2h 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 objecfg-ybli3cb89iao9u:c4yfm t6c8yo 3t experiences the larger magnitude of m9fb6 4iy-3ooit:88l c9 bfcyca3ugy momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectedc. 1;a;ov/s t1cjxew a 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.ij,qay,5v1nv Which of the following statements is false5n,i a ,yjvvq1?

  Which of the following is a false stalaqmd(q2-jt 5 tement?

  Tightrope walkers walk with a long flexible rod in orcu7d6prbvxfl3c 5i953 ,rw. puwxg p+der to

  A plane, flying horizontally, releaszly qds* +x8+fes a bomb, which explodes before hitting the ground. Neglecting air resistance, the*xy qlz+f8d s+ center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The co9 :v,uy)e1ebm6d9avjxxsz7 e llision was completely inelastic and both c,vze1j d 6vx9: abm)y97u seexars 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 fg:n; pq qk)a2k )hpih6or a system of particles.

  What is the momentum of amug1b a8 t( drf)ij7k0 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 jcl vaoo1ol:jkky7*ed*0(ui(jr1 1 v-tee 5p m/s. What is the magnitude of its momentt1j* ed yierv5p klu1jc(j-ak: e*oo(1lo0v 7um?

  A ball of mass 0.10 kg is dropped from a hed fl,d)xx md6:ka7z 0aight of 12 m. Its momentum when it strikes the gr d0)adlz,f7akmx xd:6 ound is

  Two identical 1500-kg cars are moving perpendicular to each other. One q)buls9xvghr5 2n.t* f sv;m, moves with a speed of 25 m/s due north and the other moves at 15 m/s due east;2msv g t. bhv*uqxf)nrls9,5. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strike+o*gaenu:;u igm e h)8: fipy2s a wall and rebounds at 24 m/s. What is the change in the momentum of u+2 a*oi8ih :y: mn)gfeeg;u pthe ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/sm;4l2j ntk) myt/5p zk, is struck by a racket causing it tt2mmk;k)jtp5yl /4nz o rebound in the opposite 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) is placed on a frozen pond. T;-kcu cb ly vn.)ls7lj90c-ddhe 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 pitching )l;c.bly ncdl 9-c-us07kvjdmachine? (Assume negligible friction.)

  A 70-kg astronaut is spj (q rq x)0;tnywgn6;iace-walking outside the space capsule and is stationary when the tether line breaks. As a means of retu( 0qq)jnxw;rnyt6 ;i grning 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 momentum8l*b vlx- :3nudyytjnac8;w 6 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. Whn w*vx6u :;3ljtayd 8-lc8bnyat is the magnitude 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 m 1rfz 8yc*bi2yass), who ry12z ifyc8b *is standing 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 right along a level, straight road at a nfdyp75g- i527 rrgjyu 55drs speed of 6.0 m/s. It collidrypf g2 j r-yn75i grud575d5ses directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 5ab9bm g xlve(96 *sek25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of eseb5g *996lambxv( k the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a ltyle 7l- ;kt(hevel 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 y(tt7 kllhe-;the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizod dmo cbtp jrnce )-5d22c((v:ntal 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 c(2 mrtd) ejccn-b v:opdc(2 5dar. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at t((+8w d0fdd6a vl bup 1ohb,wbj d*xb6he rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to thb8o06dw,hd xfv*(dj16b(bu d p+lb awe shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases tof -tzqst se:k.p: 3xm8 15 N and acts for one more second. What impulse was imparted by these forces to the objpez:mtq.:3x- st k8sfect?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whate8e ptii25ycsh y7;o* is the object's change ;i*y7 sep28ht eoci5 yof velocity?

  A 2000-kg car, traveling to the riwihut5*0x : ikght at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the a*tiw: x5hi0ukverage force the car exerts on the wall?

  A 2.0-kg softball is(bse x z5b-xbtmi17s 3 pitched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was -ss3bbmxi5( ext7 z b1in 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 droppop4w3 ,oe9cz1 iek1bm:f dx0g ed onto 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 wxb pmzdc0f 1iok 34o:1 g9e,e0.15 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 velorz+xfmhw pox jz(r2:2o 0(b. fcity of 750 m/s, at the rate of 300 rounds per minute. What is the avfhorz2zwpj(b+rf( mx0x : .2o erage force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to k;iwja 3r 6 o-eojp40u,e di4qnnock 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 doesn't bounce backrdp;03anuiqjo44- jo 6ewi, e?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. msc mv;pn,9n:16j owgIt falls 3.20 m to the ground. A6 :nmp;n19,c gj swmvossuming 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 after 3.0 s, whemujoy k8o2)br 3g0v-p h 8rr6on fired straight up. What average thrust force does the rocket engine exert?uk8pbo6g0ojr 8r2 r3yhmv-o)

  Two astronauts, of masses 60 kg60x wd+-kkvs d and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after s- +k6vd x0kwdthe lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/scz9eg3vnf . 45eun:bk4j hv j.. It collides in a perfectly elastic collision with a 6.0-kg object mn g vzjn 54kcj.4.fhe9b3v:e uoving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object withg5/ij6a zk-*az xj1 1n ,tabrd a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object an1jz,rxkja 5/z-ba a16t i *dgfter collision?

  A 10.0-g bullet moving at 300 m/s is fired i7 + ;x8r3ekvvpxcykxk igv198nto a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in th1k;vcv+xxgx 837ikpkrve y8 9 e 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, w 4e 9aui3pi 8bmrn7 t*zmk(r,s2c:bb is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the colbru psr*anet 743bz9im(2b,:8mikc wlision 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 movin.jr yr:3(1 jvzhz )mvbg +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediatejz hyzvv :mr 3j.(b)1rly after the collision?

A ball of mass 400 g moving toward the east with a syn6 yn-pq(x,t ue:4 ocpeed of 3.70 m/s collides head-on withn p q4eu:(,ncyo-6ytx a 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 s815-f) (n ns ggwmndkzpeed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is per) dg-zfm8n nk ns(w1g5fectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the eaz k y bl/zn/3)negf//pst at a speed of 4.0 m/s collides head-on in a perfectly inelastic e3/z// )yzg /nkbpnflcollision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station zf2s tu9u*f j86ujwh5amv a ,4wagon, who's mass is 2m. The bumpers lock together in thi a, 2fz5tj94*j muuhvfsw68a us head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 3tqyq8k+0t rd *xkskkyq.7b ; m/s in a vertical direction buries itself in a 2.4-kg block of y0 kts.y+3q r k8d;xbq*q7tkkwood 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 r0 c631l a2ur- 6fzupzaslo .la 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 of6r2llc1rlf z0usoauz pa3 6.- the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east coc1sk 2be /tz2a (1itkjllides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togethb 1z2 (ts/kea1cjk2tier 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. hg/3,5p)yirowz5(b *goc k gs Object A moves east with a momentum of 24 kgm/s. Objeh)g3g bi5poy c*so/( zg,5r wkct B moves north with 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 Nor a6piw4 72halhth 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; 4h7ahwl6 ai2p 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 air friction.)

  A 4.00-kg mass sits a addy9n,.4kjrqex *9t rmq j)/t the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of massj qq xd*j9y4 tk ,/9)mnrar.ed on the x-axis?

  The center of mass of a two-particle system n5fq-ivw i w(/is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the w-w5fii q n/v(second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0) (u*a,j g p,gqjt 81x,gppa .9vcqlh1c, 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 11.vg,jq(, 9ag ch8 qlj* ,pu1gxacpp t.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kyn /.sjb y 9mbhc6 dwp0.s(3grx7;vyxc.afa0g, 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 m;bx yxmdw0c.9hyaps.ncr va03sg(j 7/bf y6.ass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.ezvd tf:p0;n )0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center o)pvnztd;0 :ef f 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 whol +/+ojbo53tbdvgk) f we leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tabof)3v gkojwb/ + d5+tll.