What is the SI unit ofazqkir7t1hv00g;o g4m , w2qm momentum?

  When a cannon fires a cannonball, the can7:39 ksruae1x ahcks82i ye y.4rc 1ginon will recoil backward because the

  A freight car moves along a frictionless level railroad tra ).m7 :l2xybyzxr ylj,ck at constant speed. The car is open on top. A large load of coal is suddenly du27j zxb. y)xlr,lym:ymped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on j. fa2oas8 a 6j7,vhhpfrictionless ice. What happens to the velocity of the sle,pas7j fj 6ha2o8 vha.d?

  A rubber ball and a lump of putty have equal mass. They z :dlh ce4 02cu,ku8sc)ys(oyare 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 ly 2s8u(sczh)o :,uk d4c0eycthe greater momentum change?

  A sailboat of mass m is moving wkfy.h l6z6 8*0q99hiez phxiqith a momentum p. How would you represent its kinetic ene9zh 0fx6h*6iz q8 l he9.kyqpirgy in terms of these two quantities?

  If you pitch a baseball with twice the au6 i5ud718d)-g gehef r1f fwkinetic energy you gave it in the previous pitch, the magnitude of f5 f7) hrd uag6g1e8wuf1-eidits momentum is

State Newton's second laq(gc;evtjl (*w in terms of momentum.

State the law of conservatio g5)a )nbjas50bq*cnvn of momentum.

  The area under the curve on a Force versus time (F vs. t) graph represents w 6l)zk70mgayi .hfr0u3y 3hy

  Which of the following is(e //o* hpdnbn an accurate statement?

  A small car meshes with a large truck in a cj0ga:(-nxyg h.e8d r;y00rze2 v fty head-on collision. Which of the following statee y x(2zcr 0jtyyg:e fg8vh0.rand-;0ments concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the othern,prplim 1+y/p w7iv v7cl ..n blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected t ppnmvl + pvryn./77wilc .i,1o the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collideypq+x.wo ,wu+8u si3(ez u1y vs with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slo1 yxp+w.u 3 vowezsu8+,uiy (qwly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce offuefqe8.9d8(tpxa f x 1cjwwgt6+)k d5 g:v8ko each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a7bc drdq 9s (+pepb;x)oy//uq 6.0-kg object moving to the left at 2.0 m/s. W(by7br+cud)edx q9psp /;oq/hich statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles hea3msgi(qd afp4/mq a 9:d-on an 80-kg halfback run/afq49aq(3 ms dmig:p 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 of 6qnc lw6x:j8(9vuuauthe following st(waucl u6v8n9j: xu6q atements is true about kinetic energy?

  When is kinetic energy copxtog-zb ;(:ij (2ci nnserved?

  In a game of pool, the white cue ball hits the #5 ob3 u:bwom -e1ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The typuob:wom- b3e 1e of collision is

  When a light beach balmg ou 8cxs k*5-ny8q8m ,yx+nbl rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, appx8sm*,uqyxk cb 8m58n+yn-goroximately,

  A golf ball traveling 3.0 m/s to the right collides in a headia(j (5nso)gh-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball nh sai(g)jo5(immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elasticalaqjzi v1z0d +q5b. 461w /frmqjoeb5 ply with an identical ball at rest. What is the speed of the initially stopped ball after the colfqq wvj1zai b/dqj.5b 05 em6r+4p oz1lision?

  A very heavy object moving with s pvryu8y *j11g )+euoqpeed v collides head-on with a very light object at rest. The collision is elastic, and th yyv8*pqj1uu)or+1egere 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 yegym)lu3 p.0f*,a .bb9v snha very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of th.) by9mu*beasv.f3 h yg pn0,le heavy object after the collision is

  A red ball with a velowu u 4v+8z3agjcity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yel3g aw+zju4u 8vlow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lighx vaxfivn0oam4m6gt idq 03;+/ks)m 0t object moving with velocity -v. The collision is e6 0vq)4x3dxgmi;foi+ma 0/ mtkv0an slastic, 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 consezx7m-m y5ol:,-dn xri rved, then which of the following so5y-,d-7l: nz rxmximtatements is true about kinetic energy?

  Two objects collide and stick together. Kine 8qgog,di d3tah8 d:cue0fza84 0ei1ntic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfrx.:0,mji q );ivuyewqr t ;+nectly inelastic u.i+v;et,0r w;jnx )m iyqqr :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 orpjsq9 tm)8b 3bject and sticks. Which object experiences the larger magnitude of momenq3rj ts)9 bm8ptum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected8mt9ru pt 0z:b)l5rkr 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 statemeb;pt8jb:u3 qobj s m63nts is false?bt8;b j3p6j3b suqm: o

  Which of the following is a false statem q 1/aq,3w rqmyup/,6ia,r sydent?

  Tightrope walkers walk with a long flexnxz /) eq-i0fa/v.ee lible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting theds,2,hbh, yk. cyx i;3j0iqvuzzw3x qx5cc/7 ground. Neglecting air resistance, the center of mass of the bomb fragments, just after thcx5 qukxc,yi;sy3.0b, hc,dq 3 x vz7zwjhi2/e explosion

  Two cars collide head-on on a level friction-free roadj 2pfax-db :,+uod.yd. The collision was completelyd.y2 +j,o- d:aduxpfb inelastic 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 p76wev ubhpcmx,73 5ssy0/ eea articles.

  What is the momentum of a 2000 t2wm2gpk g1qkg05q r+-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Wh+l zr h5ae0tv*d+kqc0at is the magnitude of its momentua0q 5 th0vcdekr +l*z+m?

  A ball of mass 0.10 kg is dropped from a height 1c7m6kt qtp6)e t hv 9g9hn4)vjhhb8rof 12 m. Its momentum when it strikes the groundej64qg1v 89t 76k)9 hh nchbmrhvt)pt is

  Two identical 1500-kg cars are moving perpendicular to each other. One movesjsgf 7rlc; c6 7ffic(c*sd,*t with a speed of 25 m/s due north and the othejifc fr;s(, s7 t6dcf** cg7clr moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling hoh7 (5qi(g vx3pjtut: prizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What ii3 p(5g :x(tqvth7puj s 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 ,u)abfz;k gt0-x m7jgracket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the c7)t-0f k;agxzgmju b ,hange in momentum of the ball?

  A 50-kg pitching machine (excluding the basebt, 0; nas6+q ozpky5 ld6r5vhyall) is placed 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 n6;syd5h0 +pyrtk o 5 vz6al,qthe recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spa7 u*yt*9ql pd1zce a2b (lvjf4ce-walking outside the space capsule and is stationary when the tethlda*7vcq z1tl*f b(ue42 py j9er 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 toward the capsule?

  A small object with mo(w(ds3r: ol +ggdtsz +mentum 5.0 kgm/s approaches head-on a large object at rest. The sm3tsg (+(gdzs+wd :rolall object bounces straight back with a momentum of magnitude 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 fr+ r j:-6kbp j3a 0zxagqd0r1csiend (40-kg mass), who iszg06rj+ c d bj3- sq1akxp0:ar standing still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a l wnylh+9 0c,zu7i stetw82 h5cevel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of m07ic+s8znl2 u5yhthwc e, w 9tass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelie*2jn adnq2p gso9a3scj ) /,twa*/ llng at 25 m/s runs into the rear of a stopped car that has a mass o/ jl2n9o3d2/j )n qswap *t ,eslac*agf 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mapfd75 j9p+rwp, fsk l3ss 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-k3kdpfwfls +79r5pp j,g 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 a horizonta6q* 8.4hra47yp3a67z gltewal*k 3hk gyapwml track with a speed of 1z4*rwk8y al364 e hp*g6a 7qalw.a ghm3ktp7y0 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 the rate of 0.80 m/s (with pdc1en7-e i wxt-+i;bj3k j6/ey , xqprespect to the log). Withpin+ c1wp3, ;tq -dejyx76k -iejex/b what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sjt d(.ga.cq qbb (x1dc50phqz945nti:vg )y suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to 0g:nc91z 5iytv(qgdhda.jx tq c4b .) s5(qpb the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is tn) cq5zm2 ces388isr nhe object's change ofs853mq28ce iszc rn)n velocity?

  A 2000-kg car, travernofrfw (/.j 0ntik05ling to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the w5tfk r.or/wj (0nnif 0all?

  A 2.0-kg softball is pitched zi:.f jen* nlh.c6 4fsk.7ult to you at 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 is the magnitude of the average force the bat exerted4il76 f.* nful:.s hetnz.kc j?

  A 0.10-kg ball is dropped onto a table top. The speeds of the bojp2ovz+kx-**t z8cute: bz8 all 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 lastsz8bozep-uo2+ czx *tv jt8k*: 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-grc2gls. evk .i5am bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds e. g25vi.sclkper minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on a0fuum6d ;w)g the door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 w a 0;dg6ufm)ukg per second, what is the 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 per minute. It fs xn62ag4-g(yk* 42ovaotkii* sy t x;alls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does 4(skt*go*ok-2at 2yyin6;a xxsi gv4 it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when mh oyf.pe7m78 fired straight up. What average thrust fm8eo.myph 77 force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, arli /k 8rnf l q99z q+xtg+e(5.iro1rcqe initially at rest in outer space. They push each other apart. What is their separation afteriirflxnrkr/g oqqzel989( 1q +. + ct5 the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right1nv8 9mr0vrg u with a 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 after the collisiogvn90uv 81r mrn?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x directiony-0qmoea 6yc , makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of ,a eo06qmc y-ythe 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg blockdhxgpci w);9u0p+s,h39t +ld hi q9gd at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. Wha+ixl99ph+dpg)w3; 9 sdhhq0c ,ti dugt 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 (whichd;4m*j6g. u8gbppqrl:pg v0 ffptq+9 consists of 2 protons and rpvu jdfp*gq8 +.fbtqg6;pm90l4:g p2 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 equals the proton's mass.)

  A 50-gram ball moving +10 m/s k86,(foue aerl)kdg,nagj 3(q/x *locollides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately ar*kjollg, 8(akgde a)/,( 3uxe q6f onfter the collision?

A ball of mass 400 g moving toward the east with a speed of 35j-ugy, iflr-6yv0hw,y-bivv . i*5npr *bdy .70 m/s collides head-on with a 20.vy5 nwbyuvjfrgiy5 i -y**l,b0 vh--p6 di,r0 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 withbl:0pxyycrk/c 2w x (( a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. I:lkp bx (0rwccyx/2(yf the collision is 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 collides head-on in a pvn)x9d --bxx qs,gc))3ej : mqu8gaoserfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this colli xenm-c),9oq xx) gqjv sg-bdu3)s:a8sion?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon,5ii* zi* r):yfthi4z o who's mass is 2m. The bumpers lock togeft4izi5 ho r)yi:*zi *ther in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 21dv w .dsb /3x1s9hky7e3 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a yh v1dd/ 9ex bw.7ss3kresult, 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/hf(z icmkq7oc .0-xc 1z 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 collision?-cz07qi k f1z.cx( moc

  A 1500-kg car traveling at zqd79 .vp4phs90.0 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 7h q 4ppzvs.d9is the direction of motion of the cars after collision?

  Two objects move on a levet 1t20 7t9bvw+oells qllca2,l frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make ac212t+qo t9sv e ,ll0lw l7abt 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 with a velocity of 5d*feh0o4u g ns18 b2 rwhivd(numw644.0 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 speed of 10 m/s; and a third fragment with a mass of 1.0 kg.m owu h0n*4dri8d4w 6 evgu1nb5sfh(2 What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, an*sl a::ds18yu3vvrbv1go u 1gd a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mar o 13*gus: 8slyvva:d1b1vugss on the x-axis?

  The center of mass of a two-pa-253 k,a rf kwkz qu)wdhch 4-m*joyj4rticle system is at the origin. One particle is located atwd3hhkjkkc),r- jmq 54*42uofy z- a w (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 positioned as 9kncli f1o))e follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine then l)ok9i1c)e f coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 s3n7sun) 4w c l1i/drf:bc(wem, 1.0 m), /:n wc7il4fw3 sdc)(s1 nurbeand (2.0 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), bf/v xh aao81) y41xdeand a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will 1a4b dv/fohax81 ey) xresult 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 inclu t ta+sb4:6xqil vh:udi6z* 1vding the foot when the leg is stretched straight out. Assume the person is 1.60 m tall.: l* :6ta dh61u4 vtvqsxziib+