What is the SI unit of mome*s8u,:ai :gdhpb lnl7ntum?

  When a cannon fires a cannonball, the cannon will recoil backward bec7;snfbw4( l pdause the

  A freight car moves along a frictionless level raox (a32 ,sak,2rw/yql bsr-njilroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped2, s-jw ql a3yrr2ank(,obsx / into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless icas uy.1d- cgg4kw// hce. What happens to the veloc -gukcg /s wd.h4c1y/aity of the sled?

  A rubber ball and a lump of putty have ei/2w dsldgpe0x / /rn*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 objects experiences thedp0 e/gsd2ixw/r/* nl greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent its -bzmplymk5t**i4n g7 kinetic energy in terms of these ty *7bpmmiz5 k gtl-4n*wo quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previouy *sj4rt*nkt 0s pitch, the magnitude of its n y4st*r0tj *kmomentum is

State Newton's second law in terms 7pm, b6-fcv:d+san ts of momentum.

State the law of conservation of moment3bz,e lr/ok:2w6xg ysu 1mk)ium.

  The area under the curnfiv 6pl*wkf v*n.q(p i9w7a 0ve on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate s+m+ :cwq9(pt8 i woebkvct0t(tatement?

  A small car meshes with a large truck in a head-on collision. Which of the folldap a6 rc(z g9b(u-(dlowing statements concerning the magnitude of tdr(( (c6-d9aga uz lbphe average collision force is correct?

  Two equal mass balls (one red and the other blue) jm.0f v3xi-7 nzre7buqyr *7p 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 of7.m*y pbuv3ni j0 fq7ze7xr-r impulse during its collision with the floor?

  A Ping-Pong ball movingt : l,0x/iupwlkwfi 4.1nwc3o east at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounce/ xl 43.:k0clfwuwp,i niwot 1s 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 othq3a fa-nhj/ws4as z 9xz45,zq 1vghq)er. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collide(n d.9i 3mwo o/ /qvopweeu.(ts head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is (mtw/o3e vo nedpwi.uq/9.(ocorrect?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on anxyf1 4vh ++y*(rcr jkb 80-kg halfback runninf r1c+x4 y(rk+y*b vjhg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, t z: 5hw s1rp7eq35/ywu,w m;gui*fa1 lib j9pahen which of the following statements is true about kinetic ebu;7ipw:1 wlawz asyhm3 u/ 5jrf5*ip, 1gq9energy?

  When is kinetic energy conserved?9wki j*1c ;iia

  In a game of pool, the white cue ball hits the #5 ball and stops, while t(m-. )snu7(rd 0*tnbw miqn ephe #5 ball moves away with the same velocity as the cue ball had originally. The type of colin*b(7u)0w (et prmns m.nd-qlision is

  When a light beach ball rolling with a sp(tt(jl3e rq,zy; )y pqeed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's sp;(ry3et,)tqjq zly p (eed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collid;o r: a/d5kglles in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed dg5ol:al k /r;of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elasticat()u lvy:m*ef zvc3k /lly with an identical ball at rest. What is the speed of the initially stopped ball aft :*zv kelc/)tm3(fuyver the collision?

  A very heavy object moving 5iovnw7 j 1yb1dt xj14with speed 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 o1dt15n4yv7ioj1bw x j f the light object after the collision?

  A very light object moving with speed v cocj8;zxq,uf39wa kj4h llides head-on with a very heavy object at rest, in a frictionless environment. The collision is k ax4q j3 cf9;8hu,zjwalmost 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 4npsh/.i w2u(ae-,mhh nq1)szlk g2va yellow ball of equal mass moving with a velocity of -2.0 m/s.2gnkpn2w h/vzqhslsm. ) 4(i, he- a1u 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 1 v6,ux-rz bbelight object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows d ,ru 16ebb-zvxown. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which ofiz6i.d-co ifp)1(y,dka fi;d the following state)d d. zfi(pi c1,d -of6ik;iyaments is true about kinetic energy?

  Two objects collide and stick together. Kinetic ener.dqz0v8ha979oh 8wsm3um hd qgy

  A 3.0-kg object moves to the right at 4.0 m/s. It coll lp l0xo;ce1)uides in a perfectly inelastic coll xplc; ole)0u1ision 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 4eps7ez/b4lf8 kchu (a large object and sticks. Which object experiences the larger magnitude of momenh lsfzcub7 4/ (4eek8ptum change?

  In a game of pool, the white c)*w)6dxpd:5mi b mfks0sljt 0 ue 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 the3(rxus sh,l1b following statements is false,bs1 3xh srul(?

  Which of the following is a false st 4bd*now 2a:soatement?

  Tightrope walkers walk with a long flexible rod4gtd6mpx :puf8 e(mh (erwee b*kw4 8. in order to

  A plane, flying horizontally, releases a bomb, whichxci2jm i/2f, s explodes before hitting the ground/22m cisx,if j. 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. Thecd; 7xc85dfso+9 cth g collision was completely inelastic and both cars quickly came to rest during the collision. What is true about+g95;f7toh ccs d xdc8 the velocity of this system's center of mass?

State Newton's second law for a system of particles. shr /tb1izz2z(j.fpc y.5ql 1

  What is the momentum of ay yvra) nr 13kzk+j7ajxm.;)z 5 cfc0f 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. ado;2. hx6(bul/2 tdevd4ag nWhat is the magnitude of its momentnxgt aed./2d;l 2hu6bo 4( dvaum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum whenj11 ,avod nwoas,3a*fse0f2 a it strikes 1*fea3s s2,o0nvd 1 aawoa,jfthe ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One kuehv: zi75-axi8vi:c kq2*w moves with a speed of 25 m/s due north and the other movav5iihv*:2u e kq8cwi :k-7xzes at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travel. nw1oaj x rm3om0v.r*(isv8k(( nnp x2spe7zing horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change s.a0* . 8pz1 nvsinon23xx(o(7( ke wprmjmvrin the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s:3 rqrj1h, yzw h2zcvxf4 a3q4cog.u:, is struck by a racket causing it to rebound in the opposite direction at a speed1q43,rzw4rocgjfzavyx32 q u: hch : . of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the vu: yv6gaik)w h-038vhrxcy( ih .rs+ 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 directiou 3y wc-y0hv:av .)i+(x hki8hsrv rg6n. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spacz u5b ok8*xd)j) lblowg1ht( 9e 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/s away from the capsule. At what speed does the astronaut move toward thl gu*d)x1o(kltbwj 9b)hz5 8oe capsule?

  A small object with momentum 5.0 kgm/s approaches) kxd7z;9k l)rqi4k( k8hk hyl head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitu;4q8k )khzkh(dl) 9 r7iklkyxde of the large object's momentum change?

  You (50-kg mass) skate on*w)3 cfmazrf 9 ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while hom*fawr f3z9 c)lding 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 roaw uq)5xceip* v9:/sa md at a speed of 6.0 m/s. It collides directly with a stop:amxi)uwe s95*q/vp c ped 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 stoppebtl9p s vay(kx-a5,i3 )hrc 3sd car that has a mass of 1500 kg and they stick together. What is t- a9tr plshabv, k33scyi5)(x he speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to cqa-djjl 5/ek;h df)5s.iymlq:zpa0)oast along a level 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 brak:eqmdzj.-5 ;)k aps /ijyq ll0fd5)h aes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horgp3 : my0u 5)sn:gfqcgizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of5pguf:3 g:)ysgn mcq0 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 at the rate of 0.80 m/s (with respect to th*r76aq rm pvx xwf+0*le log). With what speed does xlr fwm **0a+rvqpx67 the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an obj6. n g9 dh23twhlvfmsx0me; 1;y b 8z1oz3jabmect. The force suddenly increases to 15 N and acts for one more second. What impulse was impdtahzm jeb0m 8f3h;zsog3 .n69 wl v;yx2m1b 1arted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s o+ czb-raw4dp,n a 6.0-kg object. What is the object's change of vw+,dpac- br4 zelocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick( pgcwwz+ .t2cgl;1tt wall and comesw(l+2 1c cz.t wttg;pg to rest in 0.20 s. What is the average 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 along t auhnf2/zzddu.wo u-2 6e:0rd he same path, and at the 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/r-hzd f 2nu6eu:o.zwu20 dad exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of tx8 9 pj7p1pvs5o 7)upie zoy/khe ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, rex z yi1k 8pop5opu)/se 977vjpspectively. 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 kg, fires 50.0-gram bullets, e *s*o p nn5xk-e4vjqt-ggs8q) .y9eswith a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mountk **etse9vsg) pn nqsy4-.q8 j5-egxo ?

  A fire hose is turned on the door of a burning building in order to knock 9 iwu n+yrhgv/n1 u96sthe door down. This requires a force of 1000gnuu/ vis9 whn6y 9+r1 N. If the 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 ku6tt;4u r6 xywg per minute. It falls 3.20 m to the ground. Assuming the;t 46xuw6ry ut 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, when k d:tyqdt 7v g;po4)mgm,p/e+ fired straight up. What average thrustt7mpmo :gp4 g+ke d,dqy;)/vt force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outerm.( l.ypm tr/i xo(s dsm,o, 5bmvma(7 space. They push each oth ivx,slr . t(b ,a5/(d smmp7omomm.(yer apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to thwp+k ) xhzk4k.e right 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. Whz)4p+ .wkxk khat is the total kinetic energy after the collision?

  A 0.10-kg object with a velocityh aba njn i/-4/-cuu2o of 0.20 m/s in the +x direction makes a head-on elastic col/ac 2n4j h-uu-oia/ bnlision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving-v m)lyzykqo vq4 rzl91c3 ;1x at 300 m/s is fired 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 block right after the 4;3) 1mlkzlox vzqvr ycy9q1-collision?

  A proton, of mass m, aohb)+ -v)xz..cths1jk k,pb et rest, is struck 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 will the alpha-particle have after the collision? (Assume the neutron's mass equals the p.-vh)o+ j )ec sxtz,k.b kh1bproton's mass.)

  A 50-gram ball moving +.l:33ktay eez0 5bry t10 m/s collides head-on with a stationary ball of mass 100 g. The col0ke .5 bt33lrzy:at eylision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward th t m9i*s(d.mkee east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfetei* d ms9m(.kctly 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. l67 yy dm:e/bmIt 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:yy/d embm67l the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collicp6,kuf bu :n;des head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How mf;:up n,c 6bukuch kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes m0bj q/3n pxe9h,(mc5n5 ijyu a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinet j9hmimn/q(pcyx550b3 j, e unic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2ts6beq,lp )pw3lb6h:.4-kg block of wood a rest directly above iqelpp66,hs3: b )lwtb t. 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 car traveling aw qu/(wf it)1at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1)t uwfaq /i(w1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collid.8q )p:25+qds zrc grerlci+yes 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 direction of motion of q+spqr 5 c.gr+drz 2)yei:lc 8the cars after collision?

  Two objects move on a level frictionles3 gezdx0ezwj0wb. hr ):+ac5zs surface. Object 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 isz0w) er+a.h z :zj3cbdg0 e5xw the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving tob, 74mjw ;tt8-w t .ffsqenv3fward 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 4.04sm7tf 8.bfqtf jwe,-t vw n;3-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 at the origin, and a 10.0-kg mass sits at x = + 21.0 h .ql a 4 qefga2-gbyg-,s;0wgm. Where is the center of mebwgq0.l s, aaq2gf g -gy;4h-ass on the x-axis?

  The center of mass of0 oragms a:l+8 a two-particle system 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 second mas:a+alsmo8r0g s of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0z ej ko;w,*ysb+ui*g5, 0), and 4.0 kg at (2.0, 1.0). Deter jwkuz5i,oy* s+b*ge; mine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located a 5w sr4+tiga;,bpgx eit4r9 6zt (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of t; 64 trw4 5tairgxz9g,ipe+ bshe system?

  A 3.0-kg mass is positioned at ck q/e *js 9+ec7f+xmsqy* *zt(0, 8.0), and a 1.0-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, 0*9*qjsy x cf e*ksz/te +qc+m7)?

  Use Table 7-1 to calculate the position of the CM of a whole leg kpt70bt6 7e teincluding the foot when the lege7p et06b7ktt is stretched straight out. Assume the person is 1.60 m tall.