What is the SI unit e.;osza+ks(3u wz,xr hw* 3yqof momentum?

  When a cannon fires a cannonball, the capzdru58t(+dsz hka3 j ryv9q,1+uq )jnnon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constantiy6,wu onl,b 2 speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of to,,6 w nulbyi2he car?

  A child falls sideways off a sdvkj3j7*ej (z led while sledding on frictionless ice. What happens to th*djj(ejkvz 37 e velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with eq(rtig )p fpl6b ehk;4;ual 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 greath(g4p)6b tikref; l;p er momentum change?

  A sailboat of mass m is moving with a mcrpvoq).w 9v3h vgmpu2/n2a . omentum p. How would you represent its kinetic energy in terms of thevr v9haq.c3 u mgpv.2o/wn)2pse two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it iy(49p akk o7m-l2f fr8ht,oeln the previous pitch, the magnitudekfrk f(9-yhao llop2me748 t, of its momentum is

State Newton's second law in terms orl0lelk5ac 43f momentum.

State the law of conserva:.(av 8bkeo) hyj dhf2tion of momentum.

  The area under the curve on a Force versus time (F vs. t) grwf+z)o- jv0 av.) xg jy/6fpjgaph represents

  Which of the following is an+3:s ()hw)/5q 1viry4okpcrl p fycwtazl3t* accurate statement?

  A small car meshes with a large truq.dsx8s vz+4-):pyyzv3w ovd.;ip kock in a head-on collision. Which of the following statements concerning the magnitude of the average collision forp+ k x8. -wsyd ;poiv.yzq3v:d4)szovce is correct?

  Two equal mass balls (one red and t,/uosig,,-o f 47 ouuij 5z hewo6bkz4h,v2fghe 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 with4f k-, uohz/,g4uv e2o75 iisfh jo6woub,gz, the floor?

  A Ping-Pong ball moving east at a speed of 4 m/-n kl4fr o(4dif5;ws qy s.;tps, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to ; fsln pk- 4rsy;dowif5tq (4.the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear mo*v qid13*w baomentum

  A 3.0-kg object moves to the right ad.e u7 e srbsfky1862 rpn.t2at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement .u86 s d f7se2e2ar1ytkpbr.n is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackleqf ;czq,be -4f:ihm z1c3 fak 4f-nr0ws head-on an 80-kg halfback runnikaz -14nfhmfz;crb wfe:qq4,30 f- cing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is cons/ v */nu0gno3tmq7: gy yizc+nerved, then which of the following statements is true about kinetic energz3 i7nmu: /gocg/+q nytvy*n0 y?

  When is kinetic energy conserve+l.poykql + xeg /+l2bd?

  In a game of pool, the whit iyhto31g-lam rzt ,),(sx1qh e cue ball hits the #5 ball and stops, while the #5 ball moves away w,rxhg m,-lo3iq1 sh (a1)zyttith 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 m/s collides wi s;y4/r xg;rkhth a heavy exercise ball at rest, the beach ball's speed after the collisiykxgr4;;/ hrson will be, approximately,

  A golf ball traveling 3.0 m/s hx cn18m f0ui)w( of4gto the right collides in a head-on collision with a stationaryo0fw8h)(gfmx1 uinc 4 bowling ball in a friction-free environment. If the collision 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 collid1k on(v un-rb)/9b zqyq-zlx2w5 l1 btes head-on elastically with an identical ball at rest. What is the ql-bb-k9 xb) u1 l2t(15yornzq/vwz nspeed of the initially stopped ball after the collision?

  A very heavy object moving with speed v colz6:n 1.vs0xfwq p b6rulides head-on with a very light object at rest. The collision is elastic, and there6v0q wb6n.p:ux1fszr 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 speed v collides head-on with a vv b0)op,d i2ihery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision i v2hoi)p,d ib0s

  A red ball with a velocity of +3.0 m/s collides /+gy . .smjf vdh9pkaoy, 6pk8head-on with a yellow ball of equal mass .g6hpp /9ymk vokdj 8,af.s+ ymoving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving wl4l(-s/ 1**xdi( uolr prgzt iith velocity 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 li/i*(* pr r- dto(uz4lls1xgdown. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserve5fkl9uuna:0k- rah o8d, then which of the following stakln:rha9-aufk0 85 outements is true about kinetic energy?

  Two objects collide and stick together. Kineticf- gi6*ypz4tm energy

  A 3.0-kg object moves to the bsk sd( t,buqa(/i i,sl4g.ac6u ny0(right at 4.0 m/s. It collides in a perfectly inelastic cusagk6 /,(a s4( tbids0q cnlu,bi .y(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 ob/rno: z ;ckg-yject and sticks. Which object experiences tr/gk-;z ycon: he larger magnitude of momentum change?

  In a game of pool, the white cue ball hits fahcw/ m)1*mxf 8 ef4bv jo;r: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 the 5hd) jrn6lq1)hrjh* q h+gb; zfollowing statements is falsqz5qh6n+hhrjh1bj rg ;)* ) lde?

  Which of the following ug d,z0c( t)oz e6-6by wg (gg lb8ksll276urgis a false statement?

  Tightrope walkers walk with a long flexible rod in orde7 mdsu4rxi (s3 p7o5nar to

  A plane, flying horizontally, releases a nxewa,tlg3gnd8 1s/ :qv4uh 6bomb, which explodes before hitting the ground. Neglgslh1 d e:68xnutng 3v4a,/q wecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head1y qvgr0:(gire wr5x7-on on a level friction-free road. The collision was completely iner7r015geqx ry (w:ivglastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a 22y-6z6dy:e tv1nbg 2ufmsq g system of particles.

  What is the momentum of a 2q0ky)xvny62. 9lvr 9mam0 n jjy6sk3y 000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of itghd*l 9 zmk lrv:9,o 0e.f5o:yn/qt css momen 0e/kgthodq o5ll.fy,rvnm:9czs *:9tum?

  A ball of mass 0.10 kg is dropped from a height of 3x0u)9cgayf tn4*xqjvto u m xa)( *)o12 m. Its momentum when it sta9 yvxucq(x*ou)3omn tf)0t 4gj*a x) rikes the ground is

  Two identical 1500-kqk o*0eg.unjxq6e 1e -g cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momenq.1u-eo njegxq e0* k6tum of the system?

  A handball of mass 0.10 kg, t 3;v/z8rjy -s*j4oegb p ok0obraveling horizontally at 30 m/s, strikes a wall and rebounds at 3r*gz8s -e0o/4;bbvp ojjyko 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a+uyb x8/z ttt( racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum t/(bzt+ yxt8uof the ball?

  A 50-kg pitching machine (excluding the bdx;vihf2c 35b aseball) is placed on a frozen pond. The machine fires a 0.40-k;3bcxdv5 ihf2g 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 spq ;knl9rj:pqio .s7g9 ace 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 .j q7g:n9 rqsoi kp9l;speed of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with shzha2r,y77lhlng2y6 :w32f; mj )ygfv y :qzmomentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude q m)ahn2,rz l27g h zl:yhy: gf3yfvy;76j2ws4.0 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 yq f.ngbf bt j78k.d8lv2 yi0d,our friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed d f2 tbv88qk.ydfbj7,d0 ln.g io you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight lp;dvre n/34zroad 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 the colli3nz/4epv l;rd sion?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that g44 vsqo58 xgvhas a mass of 1500 kg and they stick together. What is the speed of the cars afterx4voqg84 s v5g the collision?

  A railroad freight car, mass 15,000 k k i*y3pqphb,5 cz7k+og, is allowed to coast along a level track at a speed of 2.0 m/s. It collhzo pyk ,+5p*q3bi7kc ides 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 coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on 8l qrp cff .8ckzro9.um1rx1.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 bo qfk9r1rpr.1z x88lc.mf cu.e moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/sijtenc5s8j- sbq:08f (with respect to the log). With what speed does the log move, with respect to t8se -it: n5cjsb jq0f8he shore?

  A 4.0-N force acts for 3.0 s on an object. The 3ulw, 5mmxg-ngnl69- :cao anforce suddenly increases to 15 N and acts for one more second. What impulse wacln6xgnm 5mla:o3gwu- ,a 9n-s imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s h dte.t-cy-*xe om8 rk:znqw, j.kg 4/on a 6.0-kg object. What is the object's change of velocito4ed wx.z n/-*8j kc m-e htygqt:kr.,y?

  A 2000-kg car, traveling to the right at 30 m/s, collides wit.n*;jma;l q hnmq8 gj+h a brick wall and comes to rest in 0.20 s. What is the average force the cajg qhnm;n8m+ a*j;lq. r exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball baccv8a.cl l5dl e* ,irn4k along the same path, and at the same speed. If the bat was in contact with the bll, .4i5*r vdea c8nclall 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 bas yv urjmh 32,-/wdwfb4gg,e7ll 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 lasts 0.15 s, what is the magnitude of the,2- h 3gyuwf/bwdmr7g,je v4s 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 velocitd j 6wb497brz3m;laaiy of 750 m/s, at the 7 b9ai; rza3d wblm46jrate 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 burc6po)1ckmex)u9 0ou hning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is th6eu1c0uhm p)) xcoko 9e 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 0 z3t/d02; xp(udttm;tjkd xq per minute. It falls 3.20 m to the ground. Assuming the water doesn'ztptmj 302dx; xu; tk0(dt/ qdt splash up, what average force does it exert on the ground?

  A toy rocket, of mas (c d-bgbte ag2giq(mm:7g)fmz(ti+) s 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exert2i:mb id()t+)gg-z (7t mmcqga e (bgf?

  Two astronauts, of massewr:- o(m2vbjr3j+; wewzoh j.s 60 kg and 80 kg, are initially at rest in outer space. They push each otherjmww3b jweojr; zv(: 2.hro-+ apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a g:zunbrb 6hllsn.*(2o pv35u 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. What is the total kinetic energy hsuo6lnuvb3 g (:5 *2zr bp.lnafter the collision?

  A 0.10-kg object with a veloa 6o0 7+vxbsff) pn*gvp9ll33la woo/city of 0.20 m/s in the +x direction makes a head-on elastic collision wit+ov*nwaoov)633lpa 79f0llbxspf g /h 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. g 4t orctj jz580sm.a9The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is t5t09 g 4.c jrzjtosm8ahe velocity of the block right after the collision?

  A proton, of mass m, at rest, is strucj 99 i6xqx0cab+wuq+ tk 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 eqc q06tb+a9j9uix qx +wuals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on,zmaot x06n:vw5 k1jn with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediateo xwj t0 m:,1nn5kv6zaly after the collision?

A ball of mass 400 g mov3w:3 pies(w xxing toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is pee33(wx xi wsp:rfectly 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 ofgpuzm qtq1cdkzt :0o6 (4t ,(l 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly0q oqcgdttu(4,k z z:1p6tl(m inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the eofk3*o69 g6 vz ug1qrkast at a speed of 4.0 m/s collides head-on in a perfectly66g3kguov z9*qo1r k f inelastic collision 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 .snad)owksq ) dry(94a parked station wagon, who's mass is 2md)q(k y.a) dorw4ss n9. The bumpers lock together in this head-on inelastic 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 burieswqgm+o/ nfyn:w p 9mi m;,f/a+av 2*hr itself in a 2.4-kg blockhfi/mpf w;q na my/w:mr9 ,a2 o+v+*ng 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 travelin4 r.x3 5dvxckxg at 90.0 km/h east 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 speed of the cars after collik cxd43x.x5vr sion?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car traveling yjntz k xo+hs3s295u 2at 60.0 km/h south. The two cars stick together after the collisij9so hn3 ux5ztk +2ys2on. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frhklg gi600l3 bictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfech kgi3l l06g0btly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is movi.pkr08et)s tj ng toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fra) r8.jsettk 0pgment 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 = + 21.0 cee89 3xffi5-qs7 q)eefvx1 p m. Where is the center of mas31exqix)vs c 7q9p58fef-e efs on the x-axis?

  The center of mass of a two-pam ..ls ltb5o5bu7;mk brticle system is at the origin. One particle is locl 5to 57s;bbukmmlb..ated at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positi 00mp (mn5mux l*x/4emc ,ymploned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determmu(xm/lc0e*lp,y 05x mnp mm4ine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, ef2tg/qg i))c 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 locaqgg tci/2) )fetion of the center of mass of the system?

  A 3.0-kg mass is posiy9 l1falj;uw8 tioned 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 w8lafj91wyl ;uill 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 posi;kop cpg ;(f8( iwjk6ition of the CM of a whole leg including the foot when the leg is stretched straighjwg 8(;kipoc 6kpif( ;t out. Assume the person is 1.60 m tall.