What is the SI unit of momqom foj4-cvi 5b 8xw3+entum?

  When a cannon fires a cannonball, the canny. hhhdvv0w(-ma/ 2.dum bal+on will recoil backward because the

  A freight car moves along a frictionless leveoebn3l 5 (yuw1l railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happenuln1y w5 e(ob3s to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hapn ,(b/ kiimt1 2acb+ohpens to the velocity of the sle 2h n+(baicbkm ,iot/1d?

  A rubber ball and a lump of putty have equal mass. They are thrn1venno x4q4 0own 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 the greater momentum change?1q x0nonvn44 e

  A sailboat of mass m is mov sypj13rnq.;jing with a momentum p. How would you represent its kinetic energy in terms of these twojr.q syp1n ;j3 quantities?

  If you pitch a baseball with twice the kinetic b.sf8a lw,h8 eenergy you gave it in the previous pitch, the magnitude of ehf b8, swa.8lits momentum is

State Newton's second law in terms of momentu snz7ek)2g1hz tisi4 (m.

State the law of conservatiot -mvs+ nz01 vz5wwb3un of momentum.

  The area under the cuicy;mh/q jp iyc617dr /+v -njrve on a Force versus time (F vs. t) graph represents

  Which of the following is an accurate statement?nm6qj: t-aqr5/ hcdr ,n(qsx+

  A small car meshes with a large truck in a head-on collision. 4l zgo2 u;tp7kWhich of the following statements concerning the magnitude of the average collit ko72l;4zug psion force is correct?

  Two equal mass balls (one red and the other blue) are dropib1ezo u28xx 8ped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which bal8iex8zxb1 2oul 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 wi x7 arewk7m6k7 wn)h8ath 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 magnitude impulse during the collih7wk6kanr 8 7m a)ex7wsion?

  Two objects collide and bounce off each other. Linear j/qz.8ve)cez momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with / /7yx;aw bemda 6.0-kg object moviny/m; x/we 7dabg to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s 8h ok*wlkz z:6 8tn8ghk(af,jk 6s6vs tackles head-on an 80-kg halfback runlk 8s6tf:8 *, 68okzknh6wagsz(vhjkning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisiongj)d u6 *fpju8, if the momentum is conserved, then which of the following statements is true about kineti j* gp6dufuj8)c energy?

  When is kinetic energy czh*8pd9mpk 1f /0sjpfonserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the5 pz4t2 wzicgv; p; hr cktblse)u*+6; #5 ball moves away with the samet;4 s kc ) r2c 5t*plbegp6;izwuv;+zh velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.m)pqke*i+ dij(2o s 3w0 m/s collides with a heavy exercise ball at rdspkjo+im2( qiw*e3 )est, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a hp)c+r5c hwz7fq-) ,t srxqkq (ead-on collision with a stationary,qfh pqc5q(rsz kr))tw 7c+-x 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 collides head-on 0qxjs5 hxh7y*x 1ph2u:2 j *nkju0nvkelastically with an identical ball at rest. Whnxh20k1 **2j h y5pxqsnkvxj0h :uj u7at is the speed of the initially stopped ball after the collision?

  A very heavy object moving a4zgm b-dm:,tcw2c / nwc62knwith speed v collides head-on with a very light object at rest. The collision is elastic, and there is notcna -,w:c cgzd m4k/n6b2m2 w 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 nqss1tb -a s/d e;92eucid c*8very heavy object at rest, in a frictionless environment. The collision is almost perfectly elasti/ a8921e;ub nc-*etqdcsdis sc. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-onj5+w y qv 8s)cjiwy(-w with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of th 5(w-yqsc8+) vwjjiwye yellow ball after the collision?

  A very heavy object moving with veloz hl82kkvn v6ui+ d7d7city 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 down. What is the speed of the light object after kunl8d6k7+ 7vdhvz2ithe collision?

  In an inelastic collision, if the moment;tr k2lje0zh+wh/u ge6qrkohp -) k76um is conserved, then which of the following statements rkoju/ hp76 ;gql0ez - 6)ht2ew rh+kkis true about kinetic energy?

  Two objects collide and stmj8esin9p 6 2aick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inely6wm*e 26syld astic collision w6s*2 my y6wledith 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. Which object exper:c3j.r r0avmw iences the larger magnitude of mor wa 03:jvm.rcmentum change?

  In a game of pool, the white cue ball hits the #9 ball and isw9i jhm: rvc9 3bhh8qf zed2z,d+vdv )-o l6-v 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 fol: 1anzpyybh.aw ,:eh2lowing statements is false?2:anzb p wa:h1h .yye,

  Which of the following is a false states0akrt* sbyfhck c0 *h:+ 0ifh2-so/v ment?

  Tightrope walkers walk with a li7p:f/ itc8zao qe *5ag i9*meong flexible rod in order to

  A plane, flying horizontally,+*zkpaey1j )zdwt n.4 releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmenpwnt )dkz.jz * y4+1eats, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was cr9-3 g3 x7x8z8ljqmj6yr;tp1 gqytb nompletely inelastic and q13gjr; p7yg-6 txln8m xtbryj893zq 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 seconds4,z/ez5b( bv, 03ulyambpm w law for a system of particles.

  What is the momentum of a 2000-kg truck travelingz z) u:y7m3n eescc:d+ at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of qz6;d 6 *6nwo2)hgx6jag pgcfits momentup*gnq66x)zdoca6g j;6w 2h f gm?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mom-q ab7f1o q1 q5)zadyojb+9 seentum when it strikes the grounad5yjaes o9qq1+q) zo-b1b7f d is

  Two identical 1500-kg cars are movi cug*2(/ :ahvsgtds e6yw(t x7ng perpendicular to each other. One moves withcg(v2eht*6gxtd a :u y7s/ws( a speed of 25 m/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 ku2ut 8bghg rc)jj5n6 8g, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. 8 t6uj) 8bgr2n5ju ghcWhat is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of w ( tg5e6jx8kg12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m8e6 wktxg(5 gj/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basebal)x:i8dvq wl9 s5b7 l5rfgc7 qgl) is placed on a frozen pond. The machine fires a 0.40-kg baseball with :l ldqwb57g cgiq )fv7 9rxs85a 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 tcrm0uk)y) /o *on+pwa he space 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 astronaca* yk/))ronou +w pm0ut move toward the capsule?

  A small object with momentum 5.0 kgm/s ;) zh 4r(dtqvmapproaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitmv; z)(hdr4t qude of the large object's momentum change?

  You (50-kg mass) skate on 24z4t rnzp cr5+vvx7n ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, wcxv42 zp5zr 4tnrn7+vith 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 drawnn5v 51h.,ujog 6c ,/oto to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped moto1 ow55jdgrho6, ocu,/tn.v narcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopxan:ng)x)d4bk ubq1r6k (lpec /e ,)xped car that has a mass of 1500 kg abkx16)c,/q )a xgn :eeu)(pnl4 d rxkbnd they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level tracy/v s *j5y4)fy ;xbwztk at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and with brakyby;wy/zstx 4f jv5 )*es released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horiz pv;9;wx:,ui5d gn 6clr/dtkfontal 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 be moving after thi/c;ndl,vgik9 px ;fr td uw6:5s happens?

  A 60-kg person walks on a 100-kg log a1 y)ick fiun.-t the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to ty.ck )u1f-i nihe shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increggtnh b byrtn;8 ,b-07,mgzap/p vlpz2p :45f ases to 15 N and acts for onezn,nlb2r; v4/ ga5p,0pm 8ghy t-bp:fgzp7bt more second. What impulse 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. Whp +st(i8djg8 k;z p(yoat is the object's chg z+i8p dsk 8;ptyo((jange of velocity?

  A 2000-kg car, traveling to the rn3 r4e.bo1dzlfl0 ;wh qjp8v(ight at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force thedph;jl1qezf.4vn3rw0l ob (8 car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ba u(qn:d nn+0zkll back along the same path, and at the same speed. If the bat was in contact with the ba:nndnzuq +(k0 ll 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 rigi q5s8(stl2 yvht before and right after hitting the table s 8st(5yiqv2 ltop 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 average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 503 v;zl ybtgatqc8p,23.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. Whaqyag23,8lzpctv;b 3t t is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in orkz((v)h dcoda(kf:av 8 wok/ 3der to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is thew(o kh(8 a v:o dzf(ka/3)dckv minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drair()e d38 ybknpnpipe at the rate of 120 kg per minute. It falls 3.)kp y3b8(dren20 m to the ground. Assuming 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/:2f wl6p)tc9ee q vtw6h8b/bas after 3.0 s, when fired straight up. What average thrus6/ lwethab2cvw qpb) 68e f:t9t force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, area c+x3 xd6:krn initially at rest in outer space. T3a+x:cd6xn rkhey push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves7q- m)xanj7 wlpk :f+,xudi:a to the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 67iaum ,7f+kp-aj:xdlqn wx :).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 vm( lubkw0ylqp .op4--elocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg ob.p (u-0kp4l-obwyqm lject after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kv: 3ovn2, wqijb zf2(zg block at rest. The bullet emerges (the bullet does not get embedded in t,fv wzqvnzi2jo: b(23he 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 (whichmf/, xf)lwk;7w ye(.) epasa b r8et5g 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 neuf) l8wtem/y wab ;xf)grk7(5p. ea,es tron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationgpe v t ysrc:.5(o2ficp)lp hb11 )jh3ary ball of mass 100 g. The collisionp.pc:hi)3 eh1 t25o(1bfps gryv ) cjl is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70lkz pq , vwvt;.xad rq u:8:3erv9p8s( m/s collides head-on with a 200 g ba.:v8 8,w:xuv9 tv s;(qkpz rrqdpl3aell 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 with a speed ofg.8ol e/k zf3+xg 9dnb 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelxkge/ f9 8+olz g.nd3bastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spe+5r-pqvf. a-lnxda6 ued of 4.0 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 co- nrfvu5apxq6 dla-+.llision?

  A car of mass m, traveling with a velocoe4tgt-ygy3c fz3),nw mc+8r ity v, strikes 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 energyz g,yrt+g) t-3o 3mf4cenc8wy is lost in this collision?

A 15-g bullet traveling 213 m/s+kmwbd ; kfk-8 ;w*fzq; buxo- in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination mo;m;df 8wukkq fbz* xwo+k-;b-ves 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 ntp)rytiin0,3tc a7 9collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together a39,t 7ct p)yaitnr in0fter the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelingq;w e u)r4/0hn wfcpf* at 90.0 km/h east collides with a 3000-kg car traveling aecprf0n*h/quf;w4w )t 60.0 km/h south. The two cars 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 level fricg.hnee4tk) /c7j+ 1iqr ejgk*tionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their cerke7jg* n/q hgi4.tj +1cke)ombined momentum after the collision?

  A small bomb, of mass 10 kg, is movmeuw m+bj )4i/2k)mlzing toward 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 speed of 10 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the thim 4umbz)+)k2 lwmj e/ird fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + blm.bq ;ljtfh31t 2tta.g65 o21.0 m. Where is the center of mass on tt;ahqt .2b 5gjl fttbm3.o1l 6he x-axis?

  The center of mass of a two-particle)l all ix1iw4:-h/y; uv.narq system is at the origin. One particle is located at (hqy)v4ar1w/l i.:li;u -xnal 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 follows: 2.0 kg at (0, 0), 2.0 k- ish9vd oylvf +2is69g at (2.0, 0), a os6+ f2-vd9yhsvli9ind 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, arexo(f7 bugr w;,w8xv zn3k7pv ) located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the locat g fw(xw7 v; uz7brov3p,8)xnkion of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8. .8u)/ hcki6n 7phpafh7 /acax0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result nca/7ph/a f76xupkah.i )8c hin 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 includinggnc.7+nxs+:. lugli vjle5 e5i*qk r, the foot when the leg is stretched straight out. Assume the p l+e,x:s*iqnu.cgknll75 i5v + ge .jrerson is 1.60 m tall.