What is the SI unit nd; vmd .(p;bj w.,8pperpx -* spsr3xof momentum?

  When a cannon fires a 5o:*aszk4 t ik3emb. jcannonball, the cannon will recoil backward because the

  A freight car moves along a fx dgnhmfraa, pm:sa /6,(8pd- rictionless 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 to the velocity of t:ng fp6da-a8am/ (srmx ph, d,he car?

  A child falls sideways off a sled while sledding on friction swy:3g-;l0 knkaz2nwh uy0 ;wless ice. What happens to the velociwsl ya: y20z nk k3guwwhn;-0;ty of the sled?

  A rubber ball and a lump of putty have eqg , +xt07al *azw8azmtual 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 the gretxa zwmz*lta + 7,0ga8ater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you rsltr;) e5y lt2epresent its kinetic energy iny ;s trtle)25l terms of these two quantities?

  If you pitch a baseball with ;,y2 xhzmtb 5k- 3ktaixomj0;twice the kinetic energy you gave it in the previous pitch, the magnitude of its momenx25; mk3azokb xjt hm-yi; 0,ttum is

State Newton's second law in terms ofkobt gga- 9 hm0/za0dw/e:)zt uefh5. momentum.

State the law of conservation of momg y3v95svd l7centum.

  The area under the curve on a Force versus time (F vs. t) graph repremq kumgp 8ou.ri3 4/+dsents

  Which of the following is an accurate statementw miy61 fqw+)e?

  A small car meshes with a large truck in a head-on collision. Which of the foll6+xsnb )ur91i8s +tla+u /r srig,pceowing statements concerning the magnitude of the average collision force is cor/ls18e )sa cgpu+ixtb i+ +r,s6u9rn rrect?

  Two equal mass balls (one red and the other blue) are dropped from the yigd8qu1y0 -b,*d p:vq0oqvksame 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 th-ydvq* q v:,gdb01upkiy0 qo8e floor?

  A Ping-Pong ball moving east at azes/af8 2k,r e speed of 4 m/s, collides with a stationary bowling ball. 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 8f2re ksaz/,e impulse during the collision?

  Two objects collide and bounczkf-t07 x, elxe off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides he2sd6 br(2rwxtad-on with a 6.0-kg object moving to thew xdr2bt2s6(r left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving awax1jxp14m8bauisl*z; 5 y3p t 2.0 m/s tackles head-on an 80-kg halfback rsxu3;8p4 1abzlyi5* p1 xamwjunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the fol1ba31 f*rqb r:meg n9slowing statemeqf9:1*rgba3bmse1 n rnts is true about kinetic energy?

  When is kinetic energy conserved*acx 4nwvl u+*?

  In a game of pool, the white cue ball hits the #5 ball and bd) e xcgfmjja9u3)9t. 2kwe5stops, while the #5 ball moves away with the samx 2ajt9.jf5wg3 bkm)eeucd)9 e 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 wir /ie4-8l axsbth a heavy exercise ball at rest, the beach ball's speed after the collision wileri48sa b-lx/l be, approximately,

  A golf ball traveling 3.0 m/s to ths;3c nej6a gu4e right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almos6s en3ua cg;j4t perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a spe l ;s6l85pdrxoxp/6aked of 5.0 m/s collides head-on elastically with an identical ball at rest. What il656 r pp8alsdkx ;/xos the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v cow+1wj e7ta(x illides 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 xti+jww7a (1eof the light object after the collision?

  A very light object moving with speed v coljt1r** ;wn5* o0-2p yfzjwr v7ismm) s4zpreh lides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly ela*5nw;1 t-jrzsmm ozf2ew*h4)p*rs7 p0jrivystic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on wi).v6llyki( d3 y5yhmlth a yellow ball of equal mass moving with a veldh5iv)my63ll( y kyl. ocity 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 :qp s20ojd /yivery light object moving with velocity -v. The collisio :s2yp0 iqd/jon 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, (yyia l0 ppc8 )ym(6piif the momentum is conserved, then which of the following statements is true abou8yyypp (0ac m pi6i(l)t kinetic energy?

  Two objects collide and stick together.t b7a gdpxrx*l8g3l i9l:ago, nfb//3 Kinetic energy

  A 3.0-kg object moves to the ri1)wre1zjw ga uuvze/nx;-ei 8qd)(l*ght at 4.0 m/s. It collides in a perfectly inelastic collisiwxg 8uen1u*(/zjq r zidl ev)1 )a;ew-on 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 exper2enc, iw p-mud)z59wjiences the larger magnitude of momentum chang),enwmjp2z- du 9ci5 we?

  In a game of pool, the white cue ball hits th4+rf)u bzl5 ;ibh wi3hn/daeyy919n m e #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 massd,(bs vs+,t mjes(d-f es, M and m. Which of the following statements is false?b,fjdssm d +t,e- v((s

  Which of the following is a fal v bsxtpdm73ff,a(7e8se statement?

  Tightrope walkers walk withl(,4ym*wry bo a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodp* 0 a auda9 k ikm(ntyd0c*3um0x-n3ees before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just af0duypmka0a-m 3nd ax*3ki9 (*ecu nt0ter the explosion

  Two cars collide head-on on a level friction-free r .bb-95 cxamuhoad. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this syhb9b .- x5macustem's center of mass?

State Newton's second law for a system of particl3e ov* xrc1y2wzv6g (4 ldu8xaes.

  What is the momentum of a 2000-kg truck tju:d,a f-m-g n7j 5jpuraveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What iss o/tl.c stum+9j:83x qs8g nc the magnitude of its momentu8l/ocn 9qu msjxs 3sctg8:.t +m?

  A ball of mass 0.10 kg is dropped from a heighzdgt,wm,-n6qp5u,w3dp b :oe t of 12 m. Its momentum when it strikes the ground is,,bqnzt 3wp mgew 56u,do-d:p

  Two identical 1500-kg cars are moving perpendicular to each othe)oq c**daq. z*uyh ;oir. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the.dc)q* ;uoh*oz iaq *y total momentum of the system?

  A handball of mass 0.10 kg, travel1v34bhgb/dcl n0s8fz-b :fc y ing horizontally at 30 m/s, strikes a wall and rebounds at 24 m/sb f yv-s/hgnbl3bf 8zcdc410 :. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially cs5c0,/ uygjpen: z 3rmoving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite j:3suzr/0ne5, gcpy cdirection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machinwewxbdtix .8h7 n-0 4ge (excluding the baseball) is placed on a frozen pond. Thhtw4x8 0 xnbi dge-.w7e 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 machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule anpwck se+;u1pe6s1 (dpv9s j0ld 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 suv s (e+l; edcw10s6skjppp19 peed 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 largm -51nvej (nno6buvx2e object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of thebx265 1( v-ev njumnno large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mav;+ zly):0wc se:s *m3nw eyxnss), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togetherel mn*szcesx+;ww 3y:n):0vy?

  A car of mass 1000 kg moves to the right along a l,; bkpcby4mxeq jrco27/ (l o.evel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after 4ol /pkjce;r.(2c,bm7yxqo b the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that ;h- 6 sqo+-nwfjfk gwfknn4zu8.o 12fhas a mass of 1500 kg and they stick together. What is kn1nfs6qw.o-8 j- gz2k o ;fuhnfw f+4the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is5 3ptr1ws+ xbowd7en h heg616 allowed to coast 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 brakes released. What is the speed of the two c h h7d1es6wrgt16op nbx35ew+ ars after coupling?

  A railroad car, of ma .scbx v1vz9t j6)xbb(ss 200 kg, rolls with negligible 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. How fast will the car be xj.6zc1vt (b)9bbxsvmoving after this happens?

  A 60-kg person walks on a 100-c 4nm)f6c6 zewkg log at the rate of 0.80 m/s (with respect to the log).f cwn4m)6ez6c With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an obje6x.nta*0kzee. o1 eg1o zlkw*lrn7:ict. The force suddenly increases to 15 N and acts for one more second. 1t1ag*.eonwzek l:0k6xl*roe7n . iz What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 g;6 obskvt yt8-syv0 :s on a 6.0-kg object. What is the object's change of vel sbty6k-tyo08vsg:; vocity?

  A 2000-kg car, traveling to the right aez8z z1t,b.;s z4nostkb4 l5y(e 5 cqmt 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exe( 4nt4qzzc.55yz8 1ebtz slkmeso ,;brts on the wall?

  A 2.0-kg softball is pitched to you dvo .j k y:b.w5nm16hpat 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 0.10 s, what h6dv.oky5m:p1 b.wj nis 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 right beforu1 mnl+:5mhb ee and right after hitting the table top are 5.0 m/s and 4.0 m/hl1mb5 m+ue:ns, 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 kg, fires 50.fq ad3 0uua -omlrxn5f1ak f;/e9zb980-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force 3;-f 5 rndf9eafu/ az8bk9qu 0m xao1lexerted on the machine gun mount?

  A fire hose is turned on the door of a burning - y*obw63xkawlf+75zr0w wttbuilding 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 twlrwox0ka* b7 5 z y36t+wf-wstream needed, assuming the water doesn't bounce back?

  Water runs out of a ho qc5/hu8mv f1xrizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splaqfv h8mu 5/1xcsh up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velo.d2il7tfgaa u3e,:d cr/xvb ,city of 40 m/s after 3.0 s, when fired straight up. What averag3 xr g.fu7vdct,,da/eali: b2e thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are init.:hrm 6,num.m*.ooclz/r o3vvy,ee u ially at rest in outer space. They push each oo omu umvy/n*.:zeh lr3v m6.e,.oc, rther 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 collides in a pe2 ttxzthz+m,b;:lya7 rfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Whztamtb7+t ,2 ; lxhz:yat is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/slo1 c1c dw9/7eaoyuy/b b9 zh8 in the +x direction makes a head-on l1h9a7e/z 9 81/bobu dwoycycelastic collision 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 at 300 m/s is fired into a 1.00-kg block at rest. Thu) w9ely 4eba0e bullet emerges 0lbu4e y 9ew)a(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 struck head-ondqnlo h4* y82c) m1qlx by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is complet84l2q*qx no 1lmd y)chely 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 moving +10 m/smay 3auga9hluyx*0uh +sw.2: collides head-on with a stationary ball of mass 100 g. The collision isyaa.h:m0 xgs lh3w u2y9uu *+a elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a x ;k,htgqa ,gli-4zk:speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic.xg:-, 4kg;i thalzqk,
(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 * n3 -2cf zy+,b)j(zvdj jnhly5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of y b-d)j2zn(jy* l+z h3cnjf,vthe masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on in a en()3k(u ggekfm32boperfectly inelastic collisb(g)kf o(2gk3 3ee numion with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocinkhst e: 1wzg26v55 ttty v, strikes a parked station wagon, 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 this gvs5e1z52ht n tkt6: wcollision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itszf4ho.5-vi ep :dtn 4pelf in a 2.4-kg blot 4pe4 zdi. nfhp-5:vock of 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 car travelingh,js(vjlr. -,zq 9/uh(r umvw at 60.0 km/h south. The two cars sti l, vv-z(u/mq.rursjw ,(hjh9ck together after 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 r1h;k ij68z-qj /tj+ato *bhweast 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 the direction of motion of the cars afth/bjjwa;io6k+jz tr*8 h1 -tq er collision?

  Two objects move on a level frictionless surface. Objecrmyokt8e46k4lx pa 5(t A moves east with a momenpyk kl864(tremaxo54tum of 24 kgm/s. Object 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 towarp(hg+ zj ls-) fx,bz -p5cojd2d the North with a velocity of 4.0 m/s. c-bx f-j zzj5(pg )2hls+,dop 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? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = kij8ayoibvj1/ t 6 r6/+ 21.0 m. Where is the center of mass on the x-axis?aoy v16 ti //b6r8jjik

  The center of mass of a two-particle system is at the origin. One particlcqpb2n7u6 / ub1r m ,aowm 0j*m3mjpi+e is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of t+*/6umonp wj,jmq 1mmp7i b b02uac r3he second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (,3 ci as5fr8vd2.0, 0), and 4.0sv8 3dicaf5, r kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.1ozdy;nq, duwz+kp (wkmo)/.0 kg, 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 mass of the sdu(o1k+dqwzk,/z n.m wy)p;oystem?

  A 3.0-kg mass is positioned(g-jkteu 2 zd3 at (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 locatejt -z(3ugdk e2d at the origin, (0, 0)?

  Use Table 7-1 to calculate the positiobo fce8*5lrq (n of the CM of a whole leg including the foot when thefr5l8e*b(qc o leg is stretched straight out. Assume the person is 1.60 m tall.