What is the SI unit of momentoo, 2piyh5iphb/(+ k8pjdr5or kbs6 6um?

  When a cannon fires a a8q2f ma9 1(e n1xxw i0ujwfj;cannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at ua,qk-h t *e5jconstant speed. The car is open on top. A larghj* k5equ-at, e 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 on frictionless ice. eo;d1s 4vsk/o What happens to the velocity o s;e4okvo /sd1f the sled?

  A rubber ball and a lump of putty have equaoyx 1heu k8)a+l mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with whickuyho x 1)a8e+h 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 you represent 0 +3zsvmch5fs; w-(jznxju7t its kinetic energy in terms of these two zuxm 5n s(-0j+vf7 3zh jwcst;quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the pre ( ydu6a, rbtro;wj msi22svjgj+6m:.vious pitch, the magnitude of its momen d 6smiw 2sjj6 g(a.2r: bt;v,myuor+jtum is

State Newton's second law in terms o:+r (zdn 9sigwfmp*c6 f momentum.

State the law of conservati7u5;3 zi, b:h v8kcahhbzjg *ton of momentum.

  The area under the curve on a Force versus time (vy:khlj):x40tpyxtg+ 7 4fasF vs. t) graph represents

  Which of the following is an accurate st.:tzyy.1oxr9 .csqw ww 3.az katement?

  A small car meshes with a large truck in a head-on collision. Which of the folpa8.p; iefwx: lowing statements concerning tpi;xp.8 :fewahe magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fjxw.mn+vft t553c 55;2.dkp vfq mze arom the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected toc 3ef ttmax+ ;v25.. qmk55vw5pzdfnj the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east w5+ nbf 6qezv1at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves vn+fb6 z5 wq1veery slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each otheryh88e;jbm og1d2kimujo*a )(. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collidy c 0)dmf)c50ff)wgj des head-on with a 6.0-kg object cm )0j)wff0f)dgc d y5moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halz juvgqg6;,ote z 40a3fback runnetzgga3 0 o;6z qj,u4ving
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentu/qu 1vmn5ivxb )5ocz,m is conserved, then which of the following statements is trzb vu5)5 /ioncm1,qv xue about kinetic energy?

  When is kinetic energy conserved f1p/8zim5:k c. qizrr?

  In a game of pool, the white cue ball hits the #5 ball and stops, whil7yqg, s )tk4rv0 xtw.t.m tqj(e the #5 ball moves away with the same velocity as the cue ball had originally. The type ofyt70t ,tv(x4qts) w.mjgqr. k collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a 2 u 74valvnhz5*fcl 8l(gx.y 8 dke1rm/q(oqcheavy exercise ball at rest, the v1c.y7v(a8*l/g8ofhclnez 5dk ql24xu(qrm beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on colli w2 ;- ikivm5*5mgd2j3bggk fosion with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediatel 2bmjigk2 dgik5*5wg3 vmof-;y after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically w xct254hb4e (.lbp6yq em tsl+ith an identical ball at rest. What is the speed of the initially stopped ball after tht ehysx6q+lm(.bb t2plec 544e collision?

  A very heavy object moving with speed v collides head-on with a very lige ydz-+ mrocwygpw*+0d;4zw +eg8 b.uht object at rest. 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?+ w z*y+edr+; gwoupwbz 4dc-0y8.eg m

  A very light object moving with speed v s8 mxhj6l*)a y8 hd:ri9pkd 8vcollides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object afte9868h*ak d)vi xjm:s dl y8hprr the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball o 3l w:glhy(4xujv6pqyf w3mg(,vu x))f equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collw :y4w)hu6pvgmf,gx)qj(3luvx y( 3 lision?

  A very heavy object moving with velocity su1 a1o ob)x8jv collides head-on with a very light object moving with velocity -v.o ja)1sx bu18o 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,z omm(1ipx 8flwx-woyk0 8w62 if the momentum is conserved, then which of the following statements is true about kineokzm8- wi1mp0wol2y86 wxf ( xtic energy?

  Two objects collide and stick togethoib/lka.(qtd)8 .dgzer. Kinetic energy

  A 3.0-kg object moves to the right at .w 0vjutyq0y sn3ua504.0 m/s. It collides in a perfectly inelastic collision 0sy5qnu uv0 t0.awy3j 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. e.--vl dq xx6 gscw-v6 Which object experiences the larger magnitude of momentum change?6-x d-lvg eqvcw .s6x-

  In a game of pool, the white cue ball hits the #9 balrj o9 uxe).;s h+oh 1zpz2tan.l 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 follow; eihv8b9;v dging statements is false?g;b;eihv9vd 8

  Which of the following is a false statement;w+w u ch, 5*bb1mib6uni l2dt?

  Tightrope walkers walk with a longb5flmzwu 5,8* e*cj ua flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes beforeaaj5uc 3 09tm, +gundl hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmenj9lc+3u0atmu d5g, ants, just after the explosion

  Two cars collide head-onl (vmp:ko s,pau(b6b:vk ns8 , on a level friction-free road. The collision was completely inelastic and both cars quickly came t,(, lsvmv:p n(bk6kapsub8:o o 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 ort; vmsmp,f(fw fk-.- f particles.

  What is the momentum of a 2000-kg truck(7kdy9ykaiy a) e q9j, traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of it3px/kw( ojsb7fife,h a51 4+5 zqxpvgs momenppz7xqvf 13b w j5,x+g ef(i /a54hsoktum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it qvugo 7;.lir1strikes the ground ivir;7.o lu1qg s

  Two identical 1500-kg cars are moving pvrr)d w6b63kuerpendicular to each other. One moves with a speed of 25 ur )663wrkvb dm/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, traveling horizontally at 30 m/swq9)k04god/ yfk n m-m, strikes a wall and rebounds at 24 m/s. gf9nm/wy q okkm0-)4 d What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, inl61 rj.hpcvx y*7 )wslitially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of6lxjc7*v pwhr 1)s .ly 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozed )of1xd fxqe3/f4 nx:is c3o8hlc r;5n pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horids:) c x;fol83 xcrqodnh/143ixe5f f zontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule andg ho49q;t b 4o6g*ifcd -zv*a7j-dnwx 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 astro-;d4o96fi*c- q 4zt nw*jhxgg7ba odv naut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at rebksmib2k/ + .sst. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is thek2/sb bs+.mik magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to gree7u k:epvo3yz i)1*c lzt your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, withocev* 13u :zpzyik)7l what speed do you both move off together?

  A car of mass 1000 kgm:y*:msyeuez 9s (.lt moves to 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 ke .::tyem s sy(z*uml9g. What is the total momentum after the collision?

  A 1000-kg car travelinafw1-/8qjmc5 oxo 4ygg at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg fxj/o q18yow-4ac5 gmand they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed w wqw; 1c81mvsw12hkkto coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakes releasedw;11h s1wc8mw k2qwvk . What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictiowj : 9uyo 4npb(sw2 i9mng;sk4n on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance o kws :24uiop9smgj;49(wnbny f 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 t8gj/ /zinjcuownii; d b*)62ehe rate of 0.80 m/s (with respect to the log). Wi d*nc 2i jbj)//ion;u ig6wez8th what speed does the log move, with respect to the shore?

  A 4.0-N force acts f.q1 jh+p5bcalor 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. Whatlh.15 c+pqbja impulse was imparted by these forces to the object?

  A constant 9.0-N net f/wy6qpiw1hsn h;x p 28-)iu ohorce acts for 2.0 s on a 6.0-kg object. What is the object's change of velo/ i ixoyh ;61phsq-hu 2p)8wwncity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wa*gidg yw j9g, b r,. k9v(htt9tpq8ag.kh hg*2ll and comes to rest in 0.20 s. What is th9hy .g92vqt,* it hgb8* rgah(dj g,9 k.gktwpe average force the car exerts on the wall?

  A 2.0-kg softball is pira mfw-lz/ 29vi9xut4tched to you at 20 m/s. You hit the ball back along the same path, and atr-z2uw/49la i vfm9xt 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 exerted?

  A 0.10-kg ball is dropped onto a table top. Thetv4)ptmul )ed7t6ijr ,d i b29uw0u( v 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,) t 6b e40tjvd)iwmtulid79rp(uu2v 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 velocit2v6f nbm m jfw0je.a;+y of 750 m/s, at the rate of 300 rounds per minute. What is the average force exert fa;mbjn w+m6j0.fv2eed on the machine gun mount?

  A fire hose is turned on the door of a burning buildi5so4pj5 1)ihkp+kqnd8q9r jm ng in order to knock the door down. Thiss5iq4n) mpjp1 8r+ho k95kjqd 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?

  Water runs out of a horizontal drainp/ kmsm8n qmabm8, c5,jipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average forceqm/,5mcs ,kn8j m8a mb does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocityrma 4x00wc;uy of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine exxc ;a0my rw0u4ert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spacl mv6x,hq8 .uv;fpd kezq-h)5v.sw7ze. They push each otherq u6ph emzhv-.w x,v5)fqds8k z;.lv7 apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the righ:w4 y lzxhvb d756dh*d- ieg9mjaec 9.t with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg objzi.e:xj w e db9v6*9g yd47mld-cah5h ect 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 /u5u qe5et, ric:m)hc m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the finamcc :/reu 5)te,5hi uql velocity of the 0.10-kg object after collision?

  A 10.0-g bullet movi37tb3y gak* j,f+vxh xng at 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullett7y+ajvxk f gb 3h3,*x 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 cohgg/a l :oz+9snsists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elasti: g9lsozg/ah+c, 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 stationary brf38gvq9 g5/a(e0 b nbrbb h hux1j/z(g,ce9eall of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collibvr1c a /95en/b gfb8zu(,r3 hxbqh9e0g(jegsion?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s cxolfg; nw5,2w u8cfb9ollides head-on with a 200 g ball sitti 9ww;lnc,85g2bff oxu ng 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 of 5.0 m/s. It cbc*i-*i1smt1dj)cmk(z)*a z j8shcs ollides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses aftesdt8**m cjii(ch kcj )*m1azz b)-1ss r the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides hpkk +x.(f0k6j ma;sk yn2c5- :vexqbbead-on in a perfecay p+jkbn(sexx0b.fm52 c; kkk-6q:v tly 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 a parked station wagon, kdu4s,k r3o+kqi/j,z who's mass is 2m. The bumpers lock together in this headi d+jr kqz3kk/,uos 4,-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 buries f 58e4l ukbc fr/ak2m5itself in a 2.4-kg block of wood a rest directly above it. ubc/la5k5fkf2 48emr 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 traveling at 90.0 km/h east collides witgh;7 c+p v9gcneq+.gy f c*bd2h 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 tn7cq.* bv+hecf 9p;c2g+g dgy he cars after collision?

  A 1500-kg car traveling at 9ifk0715 ugv iy0.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (S vgik0yf 5ui71ee Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object*ok2u8hy+zb0xjwm+ ,nb8 p js A moves east with a momentum of 24 kgm/s. Object B moves north withbo 8 jkmsznx8pubj+2why+0 *, 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 tgp6j3lv(qb *f4h : kzeoward the North with a velocity of 4.0 m/s. It explodes into three l4hf:z36vbp*jk qe (g 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. 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 maszoj kwssh23b ;+s9,fis sits at x = + 21.0 m. Where is the;s2o+i fb,j skwzs39 h center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particlwi h ndrc: ,b2qf*5q4lb3m wed/ kq1l1e is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass ofq*l /dk dnm:,bh11e4bwf qc l 3r5qiw2 3.0 kg?

  Three masses are positioned as follows:zint+ x: cd tfo.t7m7(4svjs6 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 m7n4vt:tj+xtd ( 7zosf i.sc6 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2(hgzhrmsoe /y rk/sm5l6q 5v;.y ,8zn.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respec mng s mzeo5z5y;/8vlsk rhq.,h/(6y rtively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0j 5-p;py dt0 xt75ag7fhjqd i4, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0 5ah-7yjqdf 40;7 xidtp5tjpg-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 tlq4a.4l o.6pxf;j tabhe foot when the leg is stretched straight out. b6qf4jxo al;a ptl4..Assume the person is 1.60 m tall.