What is the SI unit ov/a+ uzq.hv;of momentum?

  When a cannon fires a cannon*;qb/t gi eq(zball, the cannon will recoil backward because the

  A freight car moves along a frictionless level nuts j)cz2h(; railroad track at constant speed. The car is open on top. A ln)s( cu j2zht;arge 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 sleddini (:bp4dpp: dwv xqa56g on frictionless ice. What happens tvxp:pw:d5 dpia(b6q4 o the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equm3p-5/dky s sha 8n3dpal 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 gr5dapm3 - 8sh3ksdy/n peater momentum change?

  A sailboat of mass m is moving with a momentum p. Hv: vm:0n2u nidxp9+e,-on uos,1k zofow would you represent its kinetic energy in terms of thesmnknxn ,uoife09s o2,o u:1 :z+d v-pve two quantities?

  If you pitch a baseball with twice th reiq08 noot2-e kinetic energy you gave it in the previous pitch, the magnitude of its momentum isqr o-toi0 n8e2

State Newton's second law in 1r rr 4)/ nautrdqlpxf6lh4;( terms of momentum.

State the law of conservation o;3x kupn) zg2k mmdy y,.ewp*;f momentum.

  The area under the curve on a Force versus ox a k:591yvmndezlf/upd/ 75time (F vs. t) graph represents

  Which of the following is an accurate statemxzwstjn5m, d2697,otz*i7i r hl1od e ent?

  A small car meshes with a large truck in a head-on colly* dj v jjm9j6/sa*1niision. Which of the following statements concerning the magnitude of the average collision force is cos/*jjijajnd 1y 9v*m6 rrect?

  Two equal mass balls (one+-endjyqba9t b7a,/a red and the other blue) are dropped from the same height, and rebound off the floor. The b-/9aj, te +adnb qy7ared ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides withqugs:+d9ho( brq:g+6aw 2h r e a stationary bowling ball. Th2w+h6(u+ srr:qao 9d :qhbgege 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 during the collision?

  Two objects collide and ol2zv(v(cf-f zmz( + lbounce off each other. Linear momentum

  A 3.0-kg object moves to the rig7op7(k mk4pcjht at 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 is correct(k pmck op7j74?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 8u(zj5,zk8o9x x qpzf 60-kg halfback runn9zx8 (q5zu,k ox6 fzpjing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then whic.(uq4 ;f41*cznkonstsria7 vh of the following state7ri1t4n(.;akc o*s4uz qfnsvments is true about kinetic energy?

  When is kinetic energy conservedamy: c88ynmw jh67qw -?

  In a game of pool, the white cue ball hits the #5 ball and 9luhtoiq1r-kka f i7y;0;w (5qg b 5dostops, while the #5 ball moves away withy i5ai105 o ;;gdbwh9k(r-kquqt7lo f the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling vlir*g 91v;d4xuolrm+3: jzv 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, approgz :4 + 1*lorxvdjivr9vl3u ;mximately,

  A golf ball traveling 3.0 m/s to th/05mcyg yit p+z7:wtq e right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the spee +g5mctqy/:yt p0w zi7d 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 v3:vut p)hd k9 (i 1n+9mn uyhj9ok0sgan identical ball at rest. What is thyo uv9 dmn:kp0sn9gk1 ( tj3i)u+h vh9e speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light obj *yj0fcp,kn/p +hvw2q ect at rest. The collision is elastic, and there is no friction. The heavy object barejknpcp/,*h+vw2 0 yfq ly slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v coiuj; i++5m h xrd runhub9l0-)llides head-on with a very heavy object at rest, in aulrx;umi dn5rbh 9-u) 0hj++i frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocityu0ylwx)1 x,j6. dy txx 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 thtuxlxx ,xj w) d06yy.1e velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light ob2cy /vm mh.omh 5:3vmoject moving with velocity -v. The collision is elastic, and there is no friction. The heavy :vhc o3vmm5m2 .o m/yhobject barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if ther gfq.11*u9bxk 2e-hj roqcmw89-cms momentum is conserved, then which of the following statements is true about uqbm*-c99m h8w sgof e.kcjr-211rqx kinetic energy?

  Two objects collide and stick + i3vvqpw1i3w together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It colb7m/: h op fq+-mhupxkv4 rl;*lides in a perfectly inelastic collision -v 4+hlf/qb ox;: pp hur7m*kmwith 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 collid qao2go;kjt)r*6 k(jues with a large object and sticks. Which object experiences theg to(k aq*k)6j; uo2jr larger magnitude of momentum change?

  In a game of pool, the white cue bj9q2 tarvzm*1s6oz 0mt9 9eqdx2hm6call hits 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 th t.fqg:9j.mu ie following statements is falsit9fuj m:..qge?

  Which of the following;)5 cm6xchxe(h qejny5 :o2t y is a false statement?

  Tightrope walkers walk with a f2am oe9+.hjuce:q5xlong flexible rod in order to

  A plane, flying horizontf o(4hbe4) xccx/b6nk ally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the )cc6(44 oxbebkn /hf xcenter of mass of the bomb fragments, just after the explosion

  Two cars collide head-6 oq /*1do werv+f8 rvmfwss9.on on a level friction-free road. The collision was completely inelastic and botrw./+6rm *q vf os eo19dwsfv8h 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 f4if /oo0p 34 dsjffmuayr(6u )p.7eh particles.

  What is the momentum of a 2000-kg t6.a h9*ba gj8d5fai e yptdqg:njyj -wh54;:truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What ius8, /lbi b56c 6rtcbo co8cuq3w*oc)(ydr n2s the magnitude of its momentumr*q3c6 uw)o2c y8bdliuc 8bot(bs/ 6n,c r5o c?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum whentd434 uhrtnuu p:- t*n*naubn 0y q rqzm1s44+ it strikes t uh t zp140a3 nr:d4buts4 nnr -*u+4tu*qymqnhe ground is

  Two identical 1500-kg cars are moving perpendicular to each ot8solli9 xyp1,her. One moves with a speed of 25 m/s due north and thop,9 81ylli xse other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, +vwm( 8vczqh 2traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change imvzwc8q +v2 (hn the momentum of the ball?

  A 0.060-kg tennis ball, initiall.(;0zf3w.iszon 6as q o .oewxy moving at a speed of 12 m/s, is struck by a racket causing it to rebound.q(ooe0ws f3zsa. xo.z 6nw;i in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a vh 73)vuh +pqnfrozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the 3p+7)hh vqv nuhorizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the sn 5ptm+u/ iy.lpace 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 thetp/n.+ umyli5 capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s appsqj39 ;4t avziroaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is th;qia9ztjv3 s 4e magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice q9og. v3 su;q:/ym0wlen5 b emat 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what ys:e0 m9 wvo.5qe 3m;/ qbunglspeed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, strai -+)a.za v s6xm+h9ykceqdge2 ght road at a speed of 6.0 m/s. It collides directly with a stopped motorcycly+9 e2-mas6 kvd)gchz+.ea qxe of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs intopc0t(fnlm/3r jlt tn:iigis8), ;or 8 the rear of a stopped car that has a mass of 1500 kg and they stick together. What istn8oit) jlmtr,ngsrc0i; /:lf(8i 3p the speed of the cars after the collision?

  A railroad freight car, mass 1y))xdjpf70(dkl bi( a5,000 kg, is allowed to coast along a level track at a spejk il0(xfd)pb 7(ya) ded 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 cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible f x:u.ibia5cac l7 d15lriction 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 :l1u cla5ai.ic d 7bx5car. 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 respect tb*nq l4khc36 ko the log). With what speed does the log m64hkk b ql3*cnove, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly incret*f rdvz y +n)5.ii/ck ;nfpy0ases to 15 N and acts for one more second. What 5 f; y+r/ cviz0)y np.k*itdnfimpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is+vjz v/)g6dc(nbn w /k the object's ch/d(6nv wgcvz b+jkn)/ange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides 2kkp* a*uy(adwith a brick wall and comes to rest in 02a k(u*dya*k p.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 2j5;cop4l v 81gzv l;uu0 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in coguv zl;j ol15p;vuc84ntact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dro r0kj1 z5n/pir6oblz,pped onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision between/zb z1,l50onijkpr6r 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-grams.wq a ,45faub bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exertea5 awf uqs4b.,d on the machine gun mount?

  A fire hose is turned on the door of a burning building in order toxlg6j0ark oz).5+t diu p, sj. knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per secon xsu0ipj )zajd.o.+r6 lt 5g,kd, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at tc/ gsc.l;cb 9lhe rate of 120 kg per minute. It falls 3.20 m to the ground. Assc.lgb9s cc/l ;uming the 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 s, whenx2:2atzl4 xuqbxg.2e8 . wr vf fired straight up. What average thrust force does the rocket engl8tfg qve 2x2:x uza2.r4. wbxine exert?

  Two astronauts, of masses 60 kg and 80 kg, are u:uto8)eq(*l ezo+t c initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has met8):zul qt o(oc* +euoved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. ubc 3/n /nein0s:j r+ecen 7p7It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.c0 +e3i 7nspjeebc n/nu:r n7/0 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 the +x direction makes a ho qb*k80nn(pax (nay. ead-on elastic collision with a 0.15 kg object initially at rest. What is the final vely (*(.xkqab8aonp0n n ocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is firhwyvf ;5uo60 ced into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half o;h 6vwouf c50yf 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-partic:i9v/nn1xx48ey eng j le (which consists o:nng8/ 4e vx1ni9jexyf 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 equals the proton's mass.)

  A 50-gram ball moving +10 m/s n (7m wsd 7b+ r-npqwey8ylt4.collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the sp dn 7.p4-mybnwrq+(ey8s l7w teed of each ball immediately after the collision?

A ball of mass 400 g moving toward thjqvpo vm:vvly)* 248 ne east with a speed of 3.70 m/s collides head-on with a 200 g ball s4o:2vp vq8n*) vlvjym itting 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 with a speed s 2b5jk8vn 8s 2 qch5k(n+iyhnof 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. Ifnqv5 y+2 k hns8jn5si8c h2(bk the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to y)1 fd/y,flou3x um4kthe east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a sdulf4f1 u,mxy3 oy)k/ tationary 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 parked sm a; taulgsq4s)1hf93 tation wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial ksmfa1gu4)qs ahl9; t3inetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.5n-owym3vsjk,.n 0k p4-kg block of wood a rest directly abownsnpo -ky0km,j 3 5.vve 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 travelicy 4 t/po31ssztl/5 kjng 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 speop4c3z /tj s1/kt lsy5ed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car tra; .y ,)ut2arcw bd;tq p9s+ziaveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7 zwap 2;)braqs9 utc;tyi,d+.-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictio nyjf: szu5-m ( 2n4lq;ldxdh;nless surface. Object A moves east with a momentum of 24 kgm/s. Object B m;hd:nd n;fz (q4sll52xm yu-joves 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 with a velw7 don0 ,toet v:0ztg t,(t( 3tcl2ccyfx3ak)ocity 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 4.0v7d 2cttc:oot ak3ewc (3xt0(tf,,g znl)y t0-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 s+8 f*na / j l8la6 :iqaq(4vxj(zvsyemass sits at x = + 21.0 m. Where is the center of mass on the(4n 6a :(8y8 qvi+j*/zaafl sjl vsxqe x-axis?

  The center of mass of a two-particle systg(d fj(oi:xh m2(lr:tem 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 the second mass of 3.0 kg 2:xod fh((rt:g(jiml?

  Three masses are positioned-d;s;l9v aqwmez : uysfy/ :,c as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (v; ;e-:zadywyc:fm /lss9,q u2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg,f/s2+rchshz ; 2.0 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 cente2 fh/+;sch srzr of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kgbf4l 8qc( 7hsx mass is positioned at (12, 0). What are the coorl(h 7s 4fb8qcxdinates 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 t38; wd+mbirm9 yxbg8jxi9y 0 a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m talb3iy9y 9jmr;8xd+i gt8wm0x bl.