What is the SI unit of momentugjpu55d9fus 2 m?

  When a cannon fires a cannonball, the cannon will recoil backward becauszy;7 zq9 /p ub.ca2adye the

  A freight car moves along a frictionless level railroad7 +zgwxb( n.aa,o6k au.nhk ;c track at constant speed. The car is open.k +g.6naxu;hc w,za (kbn7oa 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. What w ep3 /rk7y6lehappens to the vw6ke /7p 3erylelocity of the sled?

  A rubber ball and a lump ofj4yaho4 x29 9,usmzuli2x 6 rh putty have equal mass. They are thrown with equal speed against a wall. Thxz92h mu44296oxajl uhysri,e 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 a momentum p. How woul kn60q fps;w;cd you represent its kinetic energy in termqp;0;fsn6kcw s of these two quantities?

  If you pitch a baseball with twice the kinetic enero 3b ur3o1o/)tcrqh7igy you gave it in the previous pitch, the magnitude of its m3q) r/1oio o7t3ucrbhomentum is

State Newton's second law in terms ou,y cq a6zuu 3dga9 w*p0js,n:f momentum.

State the law of cons 3d q4y4hr-,piua2oti,tu: k6g1lf kkervation of momentum.

  The area under the curve on a Force versus time (F vs.*oms*i:z qa0r t) graph represents

  Which of the following isl0a yt-a,xgp, an accurate statement?

  A small car meshes with a/ekf 9jba+ebc*d2n 3g large truck in a head-on collision. Which of the following stat*ng/3db j ekea+9cb2 fements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one r(.kvi a 39co0(zswnz wqeps i915y4gl ed 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 impulse during its collision with the 59.wz4w( 3 syzsvc9(k0iino g q1leapfloor?

  A Ping-Pong ball moving east at a speed of 4 m/sa3z+vvpl.ij: ,i9d w,uj js:e, collides with a stationary bowling bavi39pwje :ui+jv d z:,s,laj.ll. 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 eacf3o,0 vw 5rcr8:mohpwh other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. I1pw h b+atyz5;-v)c)xp),faq vbjj:pt collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is-v pcxqvjz)bwa p);,: b j)p+at5fh 1y correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head- jy*- n,t37 g;pockpxzap3gg-on an 80-kg halfback 7,*-czggoa3tgpkp; p-j3xy n running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is:w):d0q hxkj,0evgt k -sac3c conserved, then which of the following statevqa): wcdgk,-hkej:st3 0c x0ments is true about kinetic energy?

  When is kinetic energy con,7 pwi ia or5homft16.served?

  In a game of pool, thsum6d.e.tm gn,n2)of e white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of comn) e .,sgfudo6.mn t2llision is

  When a light beach ball roll(eh 5t (vn. uxoay;:asing with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the nu :(5 esa vtyxho(.;acollision will be, approximately,

  A golf ball traveling 3.0 m/s to the righ tu1t)u s95cahb,(ci s+e1ny bt collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision t,1iu (9 tscbah)cy+n eb5 u1sis almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed o1lr*ir j8cl,d f 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stoppe81jcir l,*d rld ball after the collision?

  A very heavy object mov4ud-abbv2i 0o9rk9e *4yj dqzing with speed v collides head-on with a very light object at rest. The collision is elastic, andyu dbre* j-b944k 2a0z9vidoq 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 spe4xum*r 0jl k3xed v collides head-on with a very heavy object at rest, in a frictukl4xrm03*j x ionless 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 yellow ball of eq y7n hr.1(. 8l3kf a0altewyagual masfl a. ly(3ay0we7kr. g1t8anhs moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object movim,425d7(vzk8/ rgciv on o;fffm2ejy ng with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastice; fdo ,5cng2f4m/i28rkjo7fmv v y (z, 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 momentum is conserved, then which ont+ ;q liqe22l6l f3rzf the following6t lize 3rf ql+q;n2l2 statements is true about kinetic energy?

  Two objects collide and stickkykf+6xp 5t5 v*1xsjv together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in uy pt0*xr b5/)c2ieh ga perfectly inelastic ctue *0hi/ 5bpcr yx)2gollision 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 rozpp1ozdwr1p 6*m m wneut ap+tzt+b; ( :-6.object and sticks. Which object experiences the larger magnitude of momentum ch e6;d z pr r(t+1tnt*1pm+z -.6wp:bwomzpuoaange?

  In a game of pool, the white cue ball hits the ,vy9fus3ddy 8 #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, )y + rrnvv:c d2b,kje8M and m. Which of the following statements is fals:8vj2 y,eckr)b +rd nve?

  Which of the following is a false sti6/9hs5d,e b mxlilp2atement?

  Tightrope walkers walk with a long flexibleg)2uq.dghx b tv:bp:7i zmr6jpvx.77 rod in order to

  A plane, flying horizontally, releases a bomb, which h+7c05zpe r miexplodes before hitting the groun mzi0erh p7+5cd. 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 owb:k4j. y, owky4wm :/alu v3collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mas :lo.yv k /wm y:awwkj,u3b44os?

State Newton's second law for a system of particle njd-tvu(yqvt9 c 2oi 5:l0qc,s.

  What is the momentum of a 2000-kg truck traveling0use*fa -(eom at 35 m/s?

  A 1200-kg ferryboat is moving south atln0 6cyx l-h9u 20 m/s. What is the magnitude of its momu6xl9yc 0-lnh entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it sx f q kx)zx w-w m)2tlazd-e4w04kb9*wtrikes the gr0t)-w dqk mx44f9 wwlw *xk-bzze)ax2ound is

  Two identical 1500-kg cars are moving perpendicular to each other. O p8b65s duturw q96ymu 4v81seos cw65ne moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What msdept4yo56s8qw1v6s86bru u5c uw9 is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally atprwkyoy95n -9+ g qeq* 30 m/s, strikes a wall and rebounds at 24 m/s. What5nqoe p9+r-g9wy kyq* is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving ah s)1fj2(pp iw3 m,c*wcdjf (vt 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 balc( f(3*cv2i) m1hfs dp ,jjwwpl?

  A 50-kg pitching machine (excluding the baseball) is placed/p x tpeob2 aqa*od9-a 5(9ytc on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. Wha9c2oo e-p(xaq bt5tyap a/*d9t is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space caps o g,v9s:e ds 6ncvlq8q5wz(.nyfn/ q0ule 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/s away from the capsule. At wh /y06s8.ze 95wqnqf l(cv,dnos:qnv g at speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a largeo1 6fzc4 wga0h0;zwtlkmcu9(.mjiq( object at rest. The small object bouni1 . k60( jaz qth4mlwwug(cmzof c90;ces straight 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 icqzqt0 k5jgwif;) 25xm e at 4.0 m/s to greet your friend (40-kg mass), who is standigt5 2 z qw5j);kfxq0imng 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 q oi/3pn4aia6)de:55ku eep fa level, straight road at a speed of 6.0 m/s. It collides directly eedqn) 5/5 :k6u4faioipe3pa 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 stjc6 d*xp;5/i iqvq*y mopped car that has a mass of 1500 kg an;5 *qji*y cvx id/qm6pd 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 l7au d5iixd;pe-d2h2 x evel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initia p 2x5 -7dei2d;xhdiaully 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;t/ck* ry8dsgkuh2+ x friction on a horizontal 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. H tsky/kx+u82r ; hcgd*ow fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kgf oyxg64tx.b+vy6 2 5goo d5nd log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, wo+dg5xvgx6o.t 54 2 do6nybfy ith respect to the shore?

  A 4.0-N force acts for 3.0 s on an objecio4/7bua(v c0kp pbj/y3 xhf m*l.1v nt. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these f/ob* c(0pvun3fi7 j1amk pl4 .yx/bhvorces to the object?

  A constant 9.0-N net force acts for 2.0 s . paw 9s/c phqc/:*nonon a 6.0-kg object. What is the object's chang*:9.apqhwn/ pnsc /o ce of velocity?

  A 2000-kg car, traveling to the righhh3 q:zterdy0wk2 d -2t at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exer rh:dqyw-z0e2t23 k hdts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Y.m9sflky)h giwgmy5 xsy 8i)3x, 1 q0jrt+9 crou hit the ball back along the same path, and at the same speed. Ij3ymsxg5r mtgfk)cs . ix,ir 99 hyy+)8q1l0wf 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. The speeds of the ball rodp . mb(3h.qe(x :bbnm 2c(xnight before and right after hi .bhmx.nmbq ((cobe(n :d2px3tting 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 kgn3/r sqvk3 /tz, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at r3/3s k tz/qvnthe rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned o ji5+x+cy 1o -9a 6koq eg0rok3mcrqm+n the door of a burning building in order to knock the door down. This requires a force of 1000 N. If tymciqoe0 c+arkj - 3g9xmk+6o+5 1orqhe hose delivers 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 drainpipe at the rate of 120 kg per minute. It fu,q awiqww +28alls 3.20 m to the ground. Assuming the water doesn't splash up, what average foru www82+qqa,ice does it exert on the ground?

  A toy rocket, of mass 012l8.zbv9z bm.us gh u.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What avesv9.z2.b8u bml1g hzurage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initial 5p,h-x7d .uy0po e35 negxwljly at rest in outer space. They push each othpee0x7h 5jy ln.5xpdu o g,-3wer 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. It collidj -qzu8p(nn c0es in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Whn z(nj-c 0pq8uat is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.28du3 cf+ 8pvmx0 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 aftxf3up 8c+dv m8er collision?

  A 10.0-g bullet movin9jbc z( /a2bfxjen5 9qg at 300 m/s is fired into a 1.00-kg block at rest. The bullenj2aezb/9( 5j cbfq x9t 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 struckeb1.ujiy3 ey5 head-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 wiy.je yeui531b ll 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 collides head-on -ii l23u j9 butmm/u6ewith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisi/i ulmeub9-6 2miutj3on?

A ball of mass 400 g moving toward the east wn0iq.yd;pnujy;) l* d ith a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The colqnd.uy0i yl ;d*); pjnlision 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 col *(c;kk7k jfoc ml:cgs5w18 bqlides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what ism5jl (kkcfwcbcq sk8:g ;o7*1 the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m3:texb8(rzhv8r cr y3 /s collides head-on in a perfectly inelastic collisrr:8 hx c3vr bzet3(y8ion 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 u91 n-ftmab-q sqwt** parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inela1uqsat* --*tq9 nwbf mstic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itse5 afzfqjk.)p0lf in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination movfj0qpafkz5) . es 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 2jx zpr2 bd0z,cmbn-*3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. mbb2- ,cdjpz*2 xn0zr7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 kglvrv,b.hu* ( nu/m-am/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. g ( h-anlm/u.v rvb,u*(See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. O-m4s rwqj ax*;9+ iraxbject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magr;rqi 9 +4x* xa-amswjnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North wita4m wuaw8vo/od-5z (nk qt1*qh 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? (Negleq(k/-*18n4w5vtao uwaqm dz oct air friction.)

  A 4.00-kg mass sits at the origin, and a 1rj8k42wl6 tqrp;b; k gx afv750.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axvr; l72t ar8q4pg6bkw fkx;5jis?

  The center of mass of a two-particle system is at the origin. One pa( c(sjm*6o, ysh:ucdyrticle is located at (3.0 m, 0) and has a mass of 2.0 kg. What y cud 6:*j,(mycsso(his the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 e5 izb:rg7( hekg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the centg5 7ie :ebrh(zer of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3z)) : shql8qocq0g9d q.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is d)8sc): oqqh09lq zgqthe 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 (12v 4sxum43z 6slu evwzy 3-hs+v38oe: p, 0). What are the coordinates of a 4.0-kg mas sl33e+vvp4:-y8ov 4h6uzuswm 3s xzes 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 posfocwn )g 8qz9 w:f*7fh. 6wktxition of the CM of a whole leg including the foot when the l7thw nx of:f*w9)8.kgcz 6wqf eg is stretched straight out. Assume the person is 1.60 m tall.