What is the SI unit oe.g( )saiu8pf f momentum?

  When a cannon fires a cannonball, the cannon will recoil backw9p i3hbtsf-1mard because the

  A freight car moves along a frictionless level railroad track at constant :x2-sbh3zzx0 h kcxg+ speed. The car is open on top. A laz +gx xhcxbk0s3 z2h-:rge 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 5ec(h 5sugk+s on frictionless ice. What happens to the velociuscesk5+ g5(hty of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with ek3uhlzy3) f jv+tga7 6qual speed against a wall. The ball bounces back witv7 h+a6tgu f33j)klz yh 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 would you4dc 9oxzrlq :u n-w9j9fb:0en represent its kinetic uqx9 d4-w0c : eo9zlnr9f:njb energy in terms of these two quantities?

  If you pitch a baseball with twice thempo2+tyfp apw fhxc+ 9)0g4+b kinetic energy you gave it in the previous pitch+9mpby+ow24gffpp h)+ cx a0t, the magnitude of its momentum is

State Newton's second law-ibv v81,::qkajwzb c in terms of momentum.

State the law of conservation of :fxbiundyss08 a+8hij97 r(jmomentum.

  The area under the curve on a Force versus time (F vs. t) graph rriy mg)v2sgo i rpsw)l-p,,2, epresents

  Which of the following is an accurate sfgs8 e yf,safsm)46 x1tatement?

  A small car meshes with a large truck in a head-on collirj lc a-f+ebl-rf dii9 q /59h3zqf42ision. Which of the following statements concerning the magnitude of the aver ljah453f-r eb9lr-qzfic +qiidf/ 29age collision force is correct?

  Two equal mass balls (one red and the other blue) are dropp /j26kvkkg(sr*+2 sepn2 gjjelfx* yh 7idk6( ed from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater sjekr 2(kp*k* jnv2f 2 +gxl7dyhe/k6j(6 gismagnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bom-3 i3)d:tsdi utg, xrwling 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 impulse duri-dgs )3tdm ,3riitu: xng the collision?

  Two objects collide and bva89; yvzoi3sf -v, vsounce off each other. Linear momentum

  A 3.0-kg object moves tkzp) w9jm 7jl2o the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to thez ) pwjjkl72m9 left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/sohb tx 9,zp-g- tackles head-on an 80-kg halfback runng,h9-b p o-ztxing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which o)wduh.uwds, 5 f the following statements5.,sdwh)uud w is true about kinetic energy?

  When is kinetic energy col,tcr/k; n-w dnserved?

  In a game of pool, the white cue ball hits t-6memj.c7 bxg gp1 (hvhe #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collisio71bgpcjhv m-( g6mx.en is

  When a light beach ball rolling with a speed of 6.0 m/s collides with kx6quphnpq5rd8 9,2y38 q+w 8or1rnz+b fuofa heavy exercise ball at rest, the beach ball's speed after the collisioq86k2f ,y5 bf8nrd9 pq 8o puownxzh qu3r+r1+n will be, approximately,

  A golf ball traveling 3.0 m/oy+v.6f8 mdnne*5 ioss to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is an8m6 o5nf. e*yivd+oslmost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s9 9ea2mvtuf,y:lpb1ga. 1 mkc collides head-on elastically with an identical ball at rest. What ieg.avpy 2km 1cbmu :l,t991fas the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides hea7m ax3 j3euo(u yckt:7d-on with a very light object at rest. The collision is elastic, and there is u :ajcux t33ky (7mo7eno friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with spe8/uq nxjj bjcqo2 gln38qa69(i0v.kued 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 heuv.9xckj0o8 g( ln q 3bun8q6 j2ai/qjavy object after the collision is

  A red ball with a velocity of +3.0 m/s collk yeva 7n59kk6ides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the ykv7 ek956ank yellow ball after the collision?

  A very heavy object moving with 56k : s)8cf ksfuur7zxvelocity v collides head-on with a very light object moving with velocity -v. 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?)7s xr sk:6zf58fku cu

  In an inelastic collvqaguzdrg ):sa v-0w- +kp74oision, if the momentum is conserved, then which of the following qd zuow )4+7gr-ga-v:a0 kvps statements is true about kinetic energy?

  Two objects collide and stick together. Kinetic + y fyq9vv96ofenergy

  A 3.0-kg object moves to the right at 4.0 m/s. 6 sljf 97hk2n+ u;razo It collides in a perfectly inelastic co sruhz 7fa6+9jnk2l;ollision 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 expo u4.g w3kg8kts:j yh+eriences the larger magnitude of momentum changeu tj83s.+ :wgykogh 4k?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at axub:f-lmih g8v gc* +6 $35^{\circ}$ 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 o mof 0vn kz)gg79:i4msf the following statements is false?f) zi:s go74v0n9gmmk

  Which of the following is a false svgyxq:13yvu 0 tatement?

  Tightrope walkers walk with g( ;rvjt(uzbat/nb ) f97gw/ua long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitti.yd7zxx2e t(84hlykmk t2j7zng the ground. Neglecting. h 72d e2 yz8(mkzt7ltjkyx4x 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. Th un-sad-3jw)g e collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the vel-3jaud-nw sg) ocity of this system's center of mass?

State Newton's second law for,vdlnfaloz) 3mf( *. w a system of particles.

  What is the momentum *x5egy yxz fcrc/):u+of a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its c k+kf*w06 (iiz/avravog,m, momentum?a,ir,+ f wc *ik0vz6gkam(/o v

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it nh5ux- -i ua:vstrikes th :nuxv5aih- -ue ground is

  Two identical 1500-kg cars are moving perpendicular to each other. On )a:vnbojcg :7s4ae;eyc ,8uze1aq f6e moves with a speedojfubeeaya 6c, :4c7 q8a ;:zn ev1sg) of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travelinglc7 bsx-i-+bv horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is s+v -7-xbclibthe change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a 1b(x0*gq*8 vcfpq(* jl wagz6hig c4h speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speejq1h 6gghx (40(8a c*vi*qzl f pbcw*gd of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machiniit3xsz 1no))3v op;ye (excluding the baseball) is placed on a frozen pond. The machz 13tnx)ioiv;3spo ) yine 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 and is78fifuq00vd:iv8evi;wi 6 /y7oaw pi 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 ;a: f8 puw ii6de 7yv87/iqwofi v0vi0toward the capsule?

  A small object with momentum 5.0 kgm/s ap 2(trkl *kcr.rew(w9bproaches head-on a large object at rest. The small object bounces straight back with a momentum of magn*(b(r e9k rkr2twlcw.itude 4.0 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 friend (40-kg3ra ,wlepk2e mpl(9,y i3-wxn mass), who is standing still, with open arms. As you collide, while holding each other, with what s,ile3w3 2 -prl9m wk,x(yapn epeed do you both move off together?

  A car of mass 1000 kg moves to the right along a levi9 x(56mt rzmk9l bom(o1/w ciel, 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 aftex 9kzow6 (l5mm1ibcr9o ( i/mtr the collision?

  A 1000-kg car traveling at 25 m/s uaev+,8nl ; ixruns into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the ,naxv+8ul ie;collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along as bzb+e 0k wbw9y(vq,) level track at a speed of 2.0 m/s. It collides and couples wi s)w+y9(v0bzebqkw ,b th a 50,000-kg second car, initially 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 negligieok/b3bhr,2-a, l mipble 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 2/,ibk pr3boel a-hm, fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at t;v hjstfl -0kms/s1(p he rate of 0.80 m/s (with respect to the log). With what speed does the hs spl0v(s1k/;-mtj flog move, with respect to the shore?

  A 4.0-N force acts for 3.0 s o26m ldfmm7 ;syn an object. The force suddenly increases to 15 N and acts f2md;my6l 7msf or one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force 9)x(,yptq ;1wvd mhsm acts for 2.0 s on a 6.0-kg object. What is the object's change ofx;hmq(tpyd)v91 m,ws velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with;3b,6 mkdwvj;k.ow y x (v.j*kzz6fts a brick wall and comes to rest in 0.20 s. Whb v zkkw;fkvjox6w3.;d* j(ts,zm6y.at 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 bex dnb -zw53a .p5ajhr0f1 eh( bk*2dthe 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 is the magnitude of the averajhbzd ewk. 5 a3f( h5px*-ab1n2 be0rdge force the bat exerted?

  A 0.10-kg ball is dropped onto a tab0rdm/(au ic 4r;lyj -7mixa9cle top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 cja4m7rc0a/irlyd ;- 9 u(im xm/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 kg, fires 50.0-gram bullets, with a muzzle ve piib,g/p;u tn)9ds0 vlocity of 750 m/s, at the rate of 300 rounds per minute. What igsdp; v)n bi ut,ip/09s the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildi/ 4h q3l7tkhtzwt8l v)ng 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 stream needed, assuming the water doesn't bounce back?7ktzt w)38hhl l/q4vt

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. Ibb0x gkfwj a--g*(g-bt falk0gb b*ag j --gbw-xf(ls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0. a.jsiljrbzoh3: p.(, *ewu3u 12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force j3 u. :rjz.oe*( ,pib lwuhas3does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially +t irpi, *cut/at rest in outer space. They push eacit*ru /,+pctih other 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 c9djm+dv/i r s3)hh fp,ollides in a perfectly el3/rh,p+df vji9 mh )dsastic collision with 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 t 6nn1bma4so/;ks fzu1k:(qb usl t5dl3d x ,d(he +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the bu /do3d k 561qm:(fdl,;ksabnnsx(41 zstu l 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a x1kd l ,y0w-vq9ji.riu. 2iyp1.00-kg block at rest. The bullet emerges (the xu-wplvidj9i.01.yq 2kyr , ibullet 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-on by an alpha-particle (which codwv0y *it0p ge)r )s .,akj;ofnsists 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 )gwsy 00f,jrtkv *p;).ea idoequals the proton's mass.)

  A 50-gram ball moving +1;ul7s l bmitlt*zmo78 ,z. ba/0 m/s collides head-on with a stationary ball of mass 100t;z8s7amt/7,ibl mlo z*l.u b g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.a8+,;e0pzqj hvwzw .r 70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasz+pqa; 80wr ,zjvwhe .tic.
(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,x*f;ny oq rr8 ;hmhswvo t+5/yx1a l-. It collides head-on with a 3.0 kg mass at rest. If the collision is yxoa;ow,q rhtvhfy8;n+-*lr1/5 mx s perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s 65lzuvj: xd o;collides head-on in a perfectly inelastic collision o;uj 6d5lx z:vwith 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 p4bl2w o:1ad uwarked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kowwlb 2 1u:4adinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical dipszjd() ab0 4frection buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/bljs)af( b 0z4pdock 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 travelingfdy-yz9tb ixs .m.r9/bts 6t2 at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed /m.rt 9t9.s6zibdy2yxbt -f sof the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car travelg (8nuka0l yw6ing at 60.0 km/h south. The two cars stick togeth8ny u( kagl6w0er after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frdhue,re c7f/ q)afj1 ev;6s *nictionless surface. Object A moves east with a momentum of 24 kqe7vn1jrf/s*e6),huc af; d egm/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 toward the North witl:,z4xfwtfox9+jw1 h(*wurp 08 rqag h a velocity of 4.0 m/s. It explodes into three o 9(0jx q :hrwz4a *rwwgxpf,+fu8t1lfragments: 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 a/-gm7/zsje hnzuopjya .i. 08p v ;e,bt x = + 21.0 m. Wherz8vjo7y/i . .0a /uz-,gem;bjpehnp se 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 l81vlorxlr 4b ;:zi to,ocated at (3.0 m, 0) and has a mass of 2.0 kg. What is the locatirr,i b 4zol:lotv18x ;on of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0)cl ,5ewes 3.ml, and 4m. s3 e,cl5lew.0 kg 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 locatoxycc2/ qq3 h4ed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is /cqyhx2 43coq the location of the center of mass of the system?

  A 3.0-kg mass is positioned awy3u5swrar gmj273:+o rcco/ t (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 w3uao/o 5wrm2s +yr7j 3crgc: origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including th9gnah im7fs 7sc;(f xv/+hx( te foot when thsfctxnim77( 9avgf;+x h/h(s e leg is stretched straight out. Assume the person is 1.60 m tall.