What is the SI unit of m du/-vxgf 7kkx3:6ufpomentum?

  When a cannon fires a cannonball, the cannon will recoil baty5e2 d/s a hed76elk3ckward because the

  A freight car moves along a frictionless level railroad track at os/ye5-i00om6sx5 jsf g.tax constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of.ai j xomg0t/565- fsy0oexs s the car?

  A child falls sideways off a sled whileq. / ;phlpt6yo.bxa *0zc19tr jbv no5 sledding on frictionless ice. What happens to the velocit y 0nbcappvt9. o.xrz1/bhj65 t ql*o;y of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown ws r+xg0o bd/6yith equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. /6 groysdb+x0Which objects experiences the greater momentum change?

  A sailboat of mass m is moving wi4d ysro- hv.d(:qeg +ije1 f*fth a momentum p. How would you represent its kinetic energy in terms of these two quasd4 i(y+-1v d : .herfjeq*fgontities?

  If you pitch a baseball with twice the kinetic energ0jy q hjvf .jrk12u7-lltv l,*y you gave it in the previous pitch, the magnitude of its molrv-kj2lu,. qh vt yl7*01fj jmentum is

State Newton's second law in terms of momentum:igft ihe3 g e(gn6:0ld83ti f.

State the law of conservation of momentuob 1 zxb.5qh*zm.

  The area under the curve o3+ 1tyfoyr9vf n a Force versus time (F vs. t) graph represents

  Which of the following is an,y9s5vaud u 0qt9 dcv: xj,ru6 accurate statement?

  A small car meshes with a large truck in a head-on collision. Whiyvl8mi +36 upcvnz8)gch of the following statements concerning the magnitude of thpc8 lgvy 8)iv 3z+m6une average collision force is correct?

  Two equal mass balls (one 2lwv1 .rt1quhzh c7e/red and the other blue) are dropped from the same height, and rebound off t.1 thrz ec 17q2wuh/vlhe floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a sbba5s .phb) dtuj+b sry)- 33dpng;+ptationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which objt3 su.gbahb+d bp+bj)n) d5yr;s-3 p pect experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other.def 2)v2dgl8n) )1, mxqabfel Linear momentum

  A 3.0-kg object moves to the right at 4.0 1t79cfi h: hyub-q;hcm/s. It collides head-on with a 6.0-kg object moving to the left ;f9 1cq cb-:h uhh7iytat 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 halfbaz )*/(vc5mu8 pky gner69jory ck runnin*m86y5g ckpy/u v)erznjor (9g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, yseu4w5rlbj.4q g*f3 if the momentum is conserved, then which of the following statements is true about kinetey4rq3jwfg5b* 4s.l uic energy?

  When is kinetic energy conservx)3vcnu/s;q med?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 12l/phh hzyst kq9 h8t1 +ev7sball moves away whstvqy h/h18 e7t1spl29hz +kith 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,k d809dg)ewm 809pwz)iq knz c vlv5m m/s collides with a heavy exercise balle0dkn))l pkgqi5d vz89c9mwvw, 80zm at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a 2)bykd.i qxmud 4izw95aqq9,head-on collision with a stationary bowling ball in a friction-free environment. If the cold q9.q54w za bx uki9d2)imyq,lision 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 wit 2(qcsnk:z:g rh an identical ball at rest. What is the speed of the k:n2q : cszr(ginitially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a vy:aop88xf6/5k y+k p l aoec4xery light object at rest. The collision is elastic, and there is no frictioayalp4+8o y / :xkp8k5co6e xfn. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a vi;2p3*;dpnja zuj r.fery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object aftejn;;z j2pfdra .u*3pi r the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with ((djm 4dhh. 8g+nxtt3 nb ee7ba yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the colt(4( n.t+ hxedmb37egdh8 jbnlision?

  A very heavy object moving with velocity v collides head-on with a very ligtxb r-62k3ow k( krw1jht object moving with velocity -w btxjk(r-k or36k 2w1v. 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 collision, if the momentum is conserved, then which of ty k6aqrls ;34g v4frg9/kzn(the following statel4a6z gt4s9 kr r(nf;ygq k/v3ments is true about kinetic energy?

  Two objects collide e; phdt4j b:-oand stick together. Kinetic energy

  A 3.0-kg object moves to the .)hd z 8jxwv-pnc75qx right at 4.0 m/s. It collides in a perfectly inelast d85qnp)- zx 7wxvhjc.ic collision 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 s e16w .cs3nbgeticks. Which object experiences e6c b1n sg.ew3the larger magnitude of momentum change?

  In a game of pool, the whit nr1 qk0u5./8e-5jfaycdzze ue cue 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 lmpt( *2hdg 5mmasses, M and m. Which of the following statements is false?p*dt( 2hglm5m

  Which of the following ,,cl uy, a(tf 2gc +esvsgf;s9is a false statement?

  Tightrope walkers walk with a long flexible +w kxmj-t5i.grod in order to

  A plane, flying horizontally, rele : f,13ge cqbqmz;c -strwwkx u37h),rases a bomb, which explodes before hitting the ground. Neglecting air resistance, the centr7mqz3 -rwx ;,k3c,qsef:wg t)1 bh ucer of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The3 hwipb(cs/ miu7:z g-9b(mle collision was completely inelastic and both cars quickly came tbig9:uh- 7/(3imze w (bpmclso rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particlerp), hc6 ul8*5ey eesr1 j6nxbs.

  What is the momentum of a 2000-kg truck traveling atpuu2fn + jo1n0svm71e 35 m/s?

  A 1200-kg ferryboat is moving srbdsn+z(i :g /tfhn:;c +jkq1outh at 20 m/s. What is the magnitude of its momen(; j++d/zfnhgtcq bk1sr i::ntum?

  A ball of mass 0.10 kg is dropped from a henk t12fz7fh x9dyo/d8 ight of 12 m. Its momentum when it strikes the ground i2/dnt1xdhz7ofy 89f ks

  Two identical 1500-kogak;d1s )t2 yg cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north an 2k at;yog)d1sd 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 horizontalryqv- ,wti;: ,9cydi lly at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in tcy dl ,qy;9iw i-rt:,vhe momentum of the ball?

  A 0.060-kg tennis ball, initially moving at rzyq28a : rys:pe(v czyox;4;a speed of 12 m/s, is struck by a racket causing it to rebound in cq:82 :e ozaz;vysy;pr 4(xyrthe 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 fsnbezu2 jns+ler/3 6g)7hp 8wrozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of thhj r6+z2b83 p)7 snusng/ewele pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statc axvj-pa v7tng xn ph-72r-+lh)t 8(rionary when the tether line breaks. As a means of returning to the cap) gh a7xvtlrv r-an +h8-px7j-n2(tpcsule 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 ladqeh qn 4ig7+ur-nuzm ;*(e5nrge object at rest. The small object bounces straight back with a momentum of magnitude 4. m 7rdeeqh( +n *nuzqgui45;n-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 to greet your hxk:pu u6d o wn5-(xb6friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you box ( uh:w66npk5uboxd- th move off together?

  A car of mass 1000 kg moves to the right along a l qmpvmgu( jtlo6j02 twk/4.u9 u :tu-level, straight road at a speed of 6.0 m/s. m-pju: lgttmk(2v q4lut ./0 ujo 6uw9It collides directly 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 4/ gxopor :k(dr2xcf; *qknh2-5v ;8 zlxpno xruns into the rear of a stopped car that has a mass of 1500 kg and they stick togetherzvk8* pxxnpokq-nf;cr2hl4dr2gx5; x :(oo / . What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level ax)q m,lq2l z-xx2 ,ms :rlt0otrack 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 the speed of the two cars after c lxtq,lx-), 0oxqrm s2lz2ma:oupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal 3g* 8+x onc-oa tq ayol7*xoa**tpby)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 y*ct - axtyx3gn +abq*8oo)p lo*o7 *acar. 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 respect1q f w nr, ng-pyswy7*;4,ccqd to the log). With what speed does the rcf7;s,4cyqd*w1ngwy ,p qn- log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Tl8t adp; l:;bghe force suddenly increases to 15 N and acts for one more second. What impulse was imparg;8;da lptlb: ted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg objec5t l:q7abayx -t. What is the object's c ay:xt7-al b5qhange of velocity?

  A 2000-kg car, traveling*mi -,l (t0hl *mgpvflb6ei1w to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the avft*p0wlv h lg(i6i mleb1*m-, erage force the car exerts on the wall?

  A 2.0-kg softball is pitchg77 eugxd2 l(bed to you at 20 m/s. You hit the ball back along the same pathb(7g7 xuldeg 2, 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 exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ba vh6: yw6mxg3ux:u49by .h6gbe/wxjull 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 vguwh4xe:/ 6j:6xub.y3gxub ym h69wlasts 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 bg lp 6u9c*vkuq05ch:g ullets, with a muzzle velocity of 750kquu pvlcg:c*6 5 g90h m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in o+04mu0dph 4 mb31zvj3iwn bh frder 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 water doesn't bounce backhw4b bdip4 mfh10n jz03u m3v+?

  Water runs out of a horizont)mrh hhtyl,38 m 11heual drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming3u mh eh8 1hy)1lhrmt, the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mas+*2hiv1 yaa+-ov rnp ls 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust forh n2 a iylv*+vp-o1ar+ce does the rocket engine exert?

  Two astronauts, of masses 60 kg tl. (-r;:xhino n3sawand 80 kg, are initially at rest in outer space. They pu w a;.rx3(hiot-l nns:sh each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to oh )xd e4k2gx,wtj4 -zrxx3.fthe right with a speed of 2.0 m/s. It collides in a perfectly elastic collision w 4)2xk wxh . ,3f4zxjetrx-godith 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 make/j98l,p( kh p iih)kn1hzf)wg s a head-on elastic collision with a 0.15 kg object initial nk(9phfp, )gh/jk)iizhl1w8 ly 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 37v7ytk7cppg9*1m vr o bfma,is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get7 rvpty7vp 7g*k 1 aofb3,cm9m 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 head-on by an alpha-part*8tvogf 3 cgz*icle (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 ne3gf *v* zg8tocutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a statiz83u-xvl)w ea 7rcr/2sp 1vc honary ball of mass 100 g. The collision is elastic. What is the speed of ewuper-vlsa) x/c 71hc2 8 vz3rach ball immediately after the collision?

A ball of mass 400 g moving towar(16z wist+puad the east with a speed of 3.70 m/s collides head-on withas ip6+(wz1u t 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 speed of 5.0 m/s. It collides head-on with a 3.0 y/lyc3e1 kxu6:as, k rkg mass at rest. If the collision is perfectly inelastic, what is the speed of the masse:r3yu/ e, ky6al xskc1s after the collision?

  A 2.0-kg mass moving to the east at a 8h0stai1e -m :in;xx(j0 lbhrspeed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lo s- 8lrt1:ixhhi0xe(;nab0jmst during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagoql xfv - n)e(+r(dj.mmn, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in thierqf( m+) nvm.d-xj(ls collision?

A 15-g bullet traveling 213 m/s in a vertical direction bur+d 2jf15 ok.zfjfk4mwies itself in a 2.4-kg block of wood a+ ozw21f5 . 4fjdfjkmk 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 oozmrw + :c0x atrs.0/3000-kg car traveling at 60.0 km/h south. The two cars stick together aftw+x.r/azrt mo:o0c s0 er the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east: ju/j,9kzne:um/clt (4t0 k; rtyh eo collides 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 thonlr9zj/ ,tm;yt40(e/ thj:c kkuu:ee direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A movesu xhs7;h;/fv.afj w 0svv;yg, 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 magnitude of tvfvw;s u h /ayj; 0g7svx;.fh,heir combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving lh+z2v* k8bmwtoward the North with a velocity of 4.0 m/s. It explodes into three fwzm8lhv+ 2 b*kragments: 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? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at t c 2-.,vq)hvte(qgq 8.dhze9knb q3g x = + 21.0 m. Whereeb29,) n gtq v3.dt8c(hq-qehqgz k.v is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is k.ub8,jrd:l35 fop8( om egos located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 .g:5osd3roml(uj ok8ebf p, 8 kg?

  Three masses are positioned as follows: 2.0 kdc( 5pe3,g.st y0pph kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg cpey dpk50thg,p(s3. at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located a786h(c7bexbhh fik 25l* eef ;ubcqyt di/ l1;t (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 eq8i;bk7 2 l6 ehf*cfy7x( ic5ud/b t1ehbl;h the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at f(jue12e dy msd ,k(*c(12, 0). What are the coordinates of a 4.0-kg mas*k( ys( jfcm1ed2,e dus 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 position of thfe 6e:.iy bz.ne CM of a whole leg including the foot when the leg is feb : ny.z6i.estretched straight out. Assume the person is 1.60 m tall.