What is the SI unit v 3/ un 2/nowblhn db/th:v:u,of momentum?

  When a cannon fires a cannonball, the cannon will recoil back gzm(809ou -suwvvsm7n 5ew0nward because the

  A freight car moves along a fr g,g4vrmtftk epo )puqf)) *7.ictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What. 4gf)f*uetpvm))k t pr7qgo, happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hapbfqlyf -;rok,ekz:fl ,*+ qd5pee;qrffk-5,zy q ,f*d obllk:+ns to the velocity of the sled?

  A rubber ball and a lump of pu,sxxj e0bi)ten) i5,vtty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same s)n b ,ij ix0)s5ev,extpeed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m iwsw7nl5w43m+ncy t 1 ds moving with a momentum p. How would you represent its kinetic energy in terms of these two quantit7w1 w+cnnwl y4t5d3s mies?

  If you pitch a baseball with twice the kinetic energy you gave it in;nz8j*vb5res7 w0 53evwgjh i the previous pitch, the magnitude of its momnwv 5er jzews7g83i5h; v*j0bentum is

State Newton's second law in terms of moylv)* q,f22g6bacx j 5-zw czwmentum.

State the law of con 5)n7x.ahex,np. zq 5 4ajwecrservation of momentum.

  The area under the curve on a Force versun-)x p 9lhcre;s time (F vs. t) graph represents

  Which of the following is an accurate statemente(qhvoi0g0 *;i8 kjzh:rub -f ?

  A small car meshes with a la4(b j qpn3yc9nnz-9iyrge truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is correc(c j n-4yq9pz bny39nit?

  Two equal mass balls (one red and the other blue) are dropped fromt. t8ic4-. wo/rq(bztue w ,rr the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude ofrt(,ze cwt b/.-ro.8tqi wr4u impulse during its collision with the floor?

  A Ping-Pong ball moving east at a sq :wdw8 +ve;bxpeed 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 mad + :8eqvw;bxwgnitude impulse during the collision?

  Two objects collide and bounce off each other. Li dye(m;h.q g.k( k2gpdw14 tqvnear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head.gyea r o1at(;6l9mx h-on with a 6.0-kg object moving ;lye6ta mrxg9 ho1a( .to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebackera. c5t rkz hg5dalczlu7 yea4s.06z ,ohih1.( moving at 2.0 m/s tackles head-on an 80-kg halfback run5cockr za .gt 40izh15 lahye, za(h6udsl.7.ning
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 ;p oi tg5vnx*m/vr+g1f the following statements is true about kinetic energy?5gx; on1v*iv+ p/rt gm

  When is kinetic energy conser 6,jq16on8 oqdrhwld *ved?

  In a game of pool, the white cue bamb xrd.evz,dg +w:-;kll hits the #5 ball and stops, while the #5 b+dk e-w;m :.b,v rzdxgall moves away with 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 witf.nekj( e90p xh a heavy exercise ball at rest, the beach ball's speed af fep0k.ne(x9j ter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collms.0 cifssgw8-b n5*fides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the spewsm .ib5 s8 -0n*fgcfsed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with an idenh)hjk2 j z,kx3+i)z oatical ball at rest. What is thexzhh,2jikk)jo3) a +z speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v colli1ojmxro*wy,vk w+ i2bmbfem:))tf 59des head-on with a very light object at rest. The collision is elastic, and there is no fotxjw em1k5m)fovy *m ,b:rf)b29iw +riction. 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 u76pc;ppn rr7head-on with a very heavy object at rest, in a frictionless environmenr6c 7pnup ;7prt. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collide1 w vqu0+*zapcs head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collisi+cuw0 *v q1zpaon?

  A very heavy object moving with veluz/4 5pezec( xe ob,,8ihhp b/ocity v collides head-on with a very light object moving wbz,/zb( e x,huiop8/ e5pec4hith 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?

  In an inelastic collision, if the mofsh8*lmj0olk b/+l 4ymentum is conserved, then which of the following statements is tro+y lhj4b*fm0l lk /s8ue about kinetic energy?

  Two objects collide and stick together. Kinetrm07 1+qhnn nce 9h0tlic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfmx8*s:b 3s- + ukpcjveectly inelastic collisi-8sc:*jub+vm3 espx kon 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 andbzd35/ mvte 6i sticks. Which object experiences the large /vedm3i5ztb6r magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflects1y)k.w /o ltfy:d xe-ed 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 following stb, 5mhy+zhj l2atements is falshhy+mj5l,b2 z e?

  Which of the following is a false j;my; juepsx(l 7:pb/ statement?

  Tightrope walkers walk with a long flexible rod in ojs7m(su.a vuf)7h7b k7j 04s-aefmx q rder to

  A plane, flying horizontally, releases a bomb, which explodes before hitting msipsop 2rk:9,.*iby the grokb.ysp,ri msp9i * :2ound. 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. The col w6ypd( q:cho2lision was completely inelas 6cwyp(qd: 2ohtic 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 system of particyjtc jpf-m;rf.:;f e 1les.

  What is the momentum of a 2000-k) dt0edvgp(q0g truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of itqxzg mr,65pci jlu/69 s momen6,czl6 ur9x5 q/jgi mptum?

  A ball of mass 0.10 k0r;r jy2 df*q 6ugbjo7 u2feb*g is dropped from a height of 12 m. Its momentum when it strikes the ground gqr6b2 *uej*ufj;7dbr2 f0oy is

  Two identical 1500-kg cars are movryg5::8qyka a ing 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 i yq:k 58aa:rgys the total momentum of the system?

  A handball of mass 0.10h/o+ mo5 4tvqwzagk;xhk f 8+; kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is8 ;z mokhg5++/qaokv 4xhwft ; the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is st 2sqe3-h5kp2xk) lv pyqv.ps6ruck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of t6 h3q vpkks-.ypeq x 2l)pvs52he ball?

  A 50-kg pitching machine (excluding the baseball) is jbzv7dxoj(v;a0 , j*khj.q(qplaced on a frozen 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 the pitchin7v(0;o ja qdqjv bjzjkh(,.x* g machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space 4z5)l a.tuuslwox u9+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 toww zul+u u4ao.)s9lx5t ard the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object atf p1xjhm- e p(d)emgmid)+7; t rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude 1e g(xet;mdpf ji mpm7-)d) h+of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friendi- 2v (tw:fusi() d/rfeu dit/y2hp m, (40-kg mass), who is standing still, with open arms. As you collide, while holding each othii,f2d ime dst/p /uyu:)vw t(rf h-(2er, with what speed do you both move off together?

  A car of mass 1000 kg moves tgz+kqd hw)6t b vn f:r:7py(1io the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the totald: k gv1z)pt7: bq w(rhnyfi6+ momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs intow17jzk(b x.st the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars aftk7w(1 tsx z.bjer the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alo c9hafai8,/nsj xhgqz *i;;t1 ng a level track at a speed of 2.0 m/s. It collides andnzac; 1; s *jiq/hiahfx9,gt8 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 fricti ) uuez+n mhy9;1j 1hf9mm9ncion on a horizontal track with a spe c m ;1z1n9hmfjmuy+u)n99 iehed 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 moving after this happens?

  A 60-kg person walks on a 100-kg log at n :8.h mo, hsdgm 15e*h.wescrthe rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the sho:rh.ws1e 8cm. do, sghenm 5*hre?

  A 4.0-N force acts fqi du45x((ov+v qedrs3h3 4moor 3.0 s on an object. The force suddenly increases to 15 N and acts fsd umri+( ood( q3v543xqvh4 eor one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts d+dqzh.ve2 t jx4fumma4s88 6for 2.0 s on a 6.0-kg object. What is the object's change of ved44v.j t 6afz8m+qh2sm ud xe8locity?

  A 2000-kg car, traveling to the right a, d.z2oggnkzla (y;6 ut 30 m/s, collides with a brick wall and comes to rest in 0.20 s. W y.(g;gl,z6uzod 2 nkahat is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s.6va7x k -r7rlaz)(fa z You hit the ball back along the same path, and at the same speed. If the bat was in contact wf -zrka6lv) a (a7r7xzith 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 ball righe eq oe:1 4d;p5jdxi;ht 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 04ioh;djed1: 5exqp ;e.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 bu (,kck4buj j9sllets, with 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 mkk 9jc,s(ujb4ount?

  A fire hose is turned on the door of a burning i- 31xquaw i*zn f4i n.5 t.vhcym4h7gbuilding 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 then* 5-hwv4ni7u 3ma4 .giqcixfth z .y1 stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at th4ir/szf*1 upc e rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming thzpus*if1 c4 /re 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 2iub kcx)96 :e nxbq(cs, when fired straight up. What average thrust fqkc:( neb9i6b)2xx cuorce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are xp8h9g:wbr w: initially at rest in outer space. They push each other apart. What is theiwp9 :hg b:wx8rr separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a xvzrc nj 9i-01speed of 2.0 m/s. It collides in a perfectly elastic collision i9rx zv10-c jnwith 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 09cmt jzcgpqk+4 y/ d65.20 m/s in the +x direction makes a head-on elastic collision with a 0.15+ zc 9jk4y/pq6d5mtgc 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 1.00nspk, .s8jrs b4,7vy3oy t5 oy-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 blocnky 3o5y8psts,7 v,yors j4.b k right after the collision?

  A proton, of mass m, at rest, is zg5:yqfn;01)iau ge/e g- lx zstruck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) movingx 1anly:fge qe)i -/0;5u zzgg 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 proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a statiuv:j8xwyzv s4w*0t1n4m hqv0 kyhm,4 onary ball of mass 100 g. The colj zh4,8w:w0t*kv4snv0 umvy1y q4mhxlision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward tu. rr,ha76+feuld x3ah8+i ev he east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at h+u r uvl .7e3e8dx6ar fh+i,arest. 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 wi7c /axa vs/mg4cnqr*a5a3 iu;th a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic ugar;a 5cniax*q//4vs m73 ac, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of u(ipi0 r//+yotr* zkn1)azfk4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this colli0t(kyuoaz/n)*if1r kr/ + ipzsion?

  A car of mass m, traveling with a velocity v, strwa q7c*a(e+xa ikes 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 col(ea 7aq*+cxwalision?

A 15-g bullet traveling 213 m/s in a vertical direction buries6 o .alicg9f i3wcby,6 itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullo36.w6cb i9gc ,ifaylet/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 /9z ai qa.g3yna 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 colli9y / qn.aazig3sion?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg 2u;c 0iumg 9vtcar traveling at 60.0 km/h south. The two camc0; 2i9vtgu urs stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a leves l3 d eg71s(8.ashgp0z f;vyql frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make avs(e 3lqzh s10 g8as;f g7dp.y perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towaxirb.m, *981z qwvvm crd 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 4.0-kg fragment moving east with a speeqxzmir 8bc.9 v1v,m w*d 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(ie;z,ql 4ht o 56in nw-ary:r)z5pob.0 m. Where is the cente) p65 zh(znoq:-5tnaebl ,riryi;w4or of mass on the x-axis?

  The center of mass of a two-par(m 6y0uzr )8b. +fjiw mlkrc,yticle 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(8)w rkmb.y0+m6y ir fuzjc l, the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 bqz6 -p-.kerskg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the ce--s 6p.brzke qnter of mass.

  Three masses, 1.0 kg, 2.0 kg,z3cfocx4 c 0t7 and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.c0 3cofcx7z 4t0 m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0)1g av l omtk)kr4:t ;nnl c+1sh0o;x5f, and a 1.0-kg mass is positioned at (12, 0). Whh k+1; vt0)cf lt5m:4sn kon;oa1lgrxat 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)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including the f t d6./8dwpkhyr 8wm-foot when the leg is stretchedfk-dw6./ypd8t8m rw h straight out. Assume the person is 1.60 m tall.