What is the SI unit of ;q:v;w8i wfta momentum?

  When a cannon fires a cannonball, the cannon6 *fxdqeuht0z/ twx0(w01u hx will recoil backward because the

  A freight car moves along a frictionless level railr belapn9j 0.7ooad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to taj l097pn.o behe velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What6 h4 dg6 5jfooeoal/wl jx+p(3 happens to the velocity 3/dxgjaw4(eo5llf + ojp 6o6hof the sled?

  A rubber ball and a lumo,ejra+xrc8 yg18udte y 1 7bg8hz 6.op of putty have equal mass. They are thrown with equal speed against a wall. Theggrcy.r 8oh1e78dx+1yebzj ,oa6t u8 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?

  A sailboat of mass m is moving with a momentum p. How would you representpu285fv i2r d*vrtfz ) its kinetic energy in terms of 2*f2rd)ui r tz85 pvfvthese two quantities?

  If you pitch a baseball with twice the kinetic energj0ct5w-7t,hcy v+tveh1t i 9ry you gave it in the previous pitch, the magnitude oijhe1w ,r-9tv5 t0vt hty7+c cf its momentum is

State Newton's second law in te o0uk) i(fjdu3rms of momentum.

State the law of conservati.q, l,bp0hy2 ; (nmwtgj wy/ewon of momentum.

  The area under the curve on a Force versusg3yakowlm w)7f(,m) ryd9x yfe8m:- m time (F vs. t) graph represents

  Which of the following is an xgym vfz884y9bpp1u /accurate statement?

  A small car meshes with a large truck in a head-on collision. W ( *rukcv))rguw(fak)3q.ou r hich of the followingrru)vrcu k(kwa q( *u).g)of3 statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one fhb(a:zc g p6d6mbk;; red and the other blue) are dropped from the same height, and rebound off the floo:km6;dzhb af6 b ;(gcpr. The red 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 movo8ltte+av0l7i ( 0su ping east at 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 very sli00p o(l8veult7+as t owly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linekcgw a -3o2cmx,f/0gz ar momentum

  A 3.0-kg object moves to the right at 4.0 vzi 6,-nkvl1j+l**x e kn* faem/s. It collides head-on with a 6.0-kg object mo+x,vz*6v* alf ilk* nen-e k1jving 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-xtl4chi+ 5p98j.ws t;b 0 8uawv9 toovon an 80-kg halfback runj05+9 tpo 8cv9xw;owt lash4.8ut vib ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum isi.y)gd)ye4d 8q ev(gt conserved, then which of the followingi(y td.4qg 8e )y)gedv statements is true about kinetic energy?

  When is kinetic energy*x f)n.3b+jzf b9ikeg conserved?

  In a game of pool, the white cue ball hits the #5p a xx/t-2if tv w+bagf96 f/hee++n2y ball and stops, while the #5 ball moves away with the same velocity as the +v+y-etw9h+f a//2p2 ef6x ibtg nxfacue ball had originally. The type of collision is

  When a light beach b6tg ) hvsdckf-/ 1eb8gall 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, ah1dset-cgvg/ 8k6f)b pproximately,

  A golf ball traveling 3.0 m/s to the right collides in a he-bvzu+y kc1-oad-on collision with a stationary bowling ball in a friction-free environment. If the collision iuo+b yc vz--k1s almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/sdb d5 o:p6whgg p.x60uqi4sv2 collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the coll4bd p gg5p iv xuso6dw06h:.q2ision?

  A very heavy object moving with speed v collides headfxc bx /9u)f5u-on with a very light 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 afteru bxfc9uf5/)x the collision?

  A very light object moving with speed v collides head-on with a y;aqv i..dxv/very heavy object at rest, in a frictionless environment. The collisi/viy v.dx .;aqon 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 collides heb:2gubhge*( (xolan+ ad-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocitg(b2*h(axgn +lbu oe:y of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very lightuef dotuzsq0*1 0qmzu1 9n h46 object moving with velocity -v. The collision is elastic, and there is no friction. The heavy obje0us4 0zu t q916o1dzqhn*ufm ect barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the foll hg6e25(tyy u.aoz ye4j f(ud+owing statements is thz u(a(+ fy4 o 5dju.62yeeygtrue about kinetic energy?

  Two objects collide and stick together. Kinetic dvuk 0wlt sx:-b.k g 9;og*-goenergy

  A 3.0-kg object moves to the right at 4.0 m/s. xzb0vs/t1x5 +-lf3wfeky q4o It collides in a perfectly inelastic collision v wk yszoefbx35+tq -x/1 f40lwith 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 obj 3um61jf.olt0 cozxq6ect and sticks. Which object experiences the larger c oo13qtz606mxfu. l jmagnitude of momentum change?

  In a game of pool, the white ehz5;g83uoesazsm.4 .u7d)cg 0zgdkf,*j sh cue ball 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 the fgl8:nrd/sdi:q rz+jfl1/ x:y ollowing statements is false?z 1x/+ r:gn8dqd:fy:s il /ljr

  Which of the following is spwl 3 c/7z4p+j,iw.dnpj cd2je4h q4a false statement?

  Tightrope walkers walk with a lon 5n o44-h+fvlvr x,ze+yjewm-g flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes ia4nv 43:vi ehbefore hitting the ground. Neglecting air resistance, the center of mass oia:n43vh4iev f the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. kv7m /u9bb8v mlplooz;1w3,sze8(s iThe collision was completely inelastic and both cars quickly came to resm9 bl;z8zi wu3, kp/( b vmevs7o81olst during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a systemttw9uwnm 8h:lh*zx5 dpq0k- d j th:r4bw. 50n of particles.

  What is the momentum of a 2000-kg truck trat id k)z5jof.-ka3* qhveling at 35 m/s?

  A 1200-kg ferryboat +e;qyyv st:;gq g3n)e- ,e3l hhzroa,is moving south at 20 m/s. What is the magnitude of its moment,esrh3-t y +o3;vqg ;:z l) qhg,yenaeum?

  A ball of mass 0.10 kg is dropped from a height of1y lw1bp6 p:fr9j 2.jxpbnh a; 12 m. Its momentum when it strikes txf 6p2bpl nbhw.1ra; pyj9j1:he ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wfm/wx r roq7c.,sbp42ith a speed of 25 m/s due north and the other moves at 15 m/s due east. What ispr.s x47 mwf/2rco qb, the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall ao 4 shxj(d9s/uxyd** nnd rebounds at 24 m/s. What is the change in the momentum of the4*ussn dd9(yhxx *o j/ ball?

  A 0.060-kg tennis ball, initially movi2usmk j7e:)bbng at a speed of 12 m/s, is struck by a racket causing it to rebound in the:u b2e7mjb)s k 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 frozen pondd*b9 +kv0bsp jg3d g.rf92v wb. The machi923 dbsvb.0kfw+rdpg v*jbg9 ne fires a 0.40-kg baseball with a 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-walk6lavm3iu*,f e2 .hgul ing outside the 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. m,hl 632g*l fv.eiauuAt what speed does the astronaut move toward the capsule?

  A small object with momentum wz;tua)2k4x f 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnia4);xzkf uw2 ttude 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 jaq7hz/ s -jm+c34r twgreet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each 47c-m/z + sq hjrja3twother, with what speed do you both move off together?

  A car of mass 1000 kg e*ve7z k,nd,adb6c ikb6+ nk: moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motoz edbvd6a7nk*kni :,6e k+,cbrcycle 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 syl0 bqu -8)ientopped car that has a mass of 1500 kg an0e - uli)bqy8nd they stick together. What is the speed of the cars after the collision?

  A railroad freight car, 8ol0yxlr 82di mass 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collidei08x d8yl2orl s 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 wr8c d9(:pm2vauw q/vwith negligible friction 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 car. How fasmv uq d/:cw(89 v2pawrt 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/so-cfx ur:(;pp (with respect to the log). With what speed does the log move, with re orpu-cx:(;f pspect to the shore?

  A 4.0-N force acts for 3.0 s on an object. . zq f/xm;mi*hche :z9waj)5lThe force suddenly increases to 15 N and acts for one more second. What impulse zhm 5f;*/ j.)z xm9al:ice wqhwas 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 the ob7 ;omohvf8hk dy5*vc)u q r7b9da0l 9fdf3 9zlject's change of v v8d f; *boflvl 9h)dh9 a03qruz5kfyom77d9celocity?

  A 2000-kg car, traveling to the right at 30 m/s, cgxb3f1m ht l6 a+9da8eollides with a brick wall and comes to rest in 0.20 s. What is the avftbam ed a6lh9 x+813gerage force the car exerts on the wall?

  A 2.0-kg softball is pitchednk)2:beqsk3*dj 2m lk 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 ba3j sklqn2k2d ek:m*)b t exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of thg9ng) uyufn y1gs 7leb:g5:n 8e 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 the ball and the table top lasts 0gg8 5n:gfy9b y ugl1s:n)neu7.15 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-grlq i*t7 o lvfkq9g1ve; m8w;/zam bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average f89* z; k1t ; qvgqw/7emvolfilorce exerted on the machine gun mount?

  A fire hose is turned on the door 5amgu g0;rue1- ndr2iof a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per ue r md;i1nagg0u5r2 -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 k262z o0rmn7ma 7 fbejbt4xs7 sg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,7fom77t6s 42bmsx r2nb aj0e z what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m4+xgwgnb5 8c4 y. fj2(8tfhed bt/ au)kply1u /s after 3.0 s, when fired straight up. Wha4 pk8l+fb2ht eu8y y1wx gncbtdj.4ag()/5f u t average thrust force does the rocket engine exert?

  Two astronauts, of masses 2zdf r ja-z+m660 kg and 80 kg, are initially at rest in outer space. They push each other apart. a26zzjr-f +dmWhat is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collide x+rn21auzlx, s in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinenlx1uz r2,x+atic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head-on 0 awsp 7euio,yxna..3 elastic colliseia. w3up0s.a,7noy xion with a 0.15 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 1.00-kg block at res:w -3.x9mni(ts cedv3ab 7 zwot. The bullet emerges (the bullet does noc(7 wioae.xtvm bns9wz 3 -3d:t 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 hejmx ,rys jy9kl)e g49 3qprw97ad-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed wey, rkw4pmjl3r9q 7j 9yg)xs9ill 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 sttz;8 hqea r*xki-lb,z+ a;uz0ationary ball of mass 100 g. Th +k e,tu l0;r-z;bxqzz8*aiahe collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g),r,xfre r .0rgi cawr-1,axrm- mi4 w moving toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision 0m1)g ,rearri-.r,irarf,w x-x4w m cis 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 collides head-on with a 3k-sz2 ih/0pio 6qnlm ).0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses /i lkni2 hsqp)m6oz0-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 h 8vwo4 +mkd69 xir*ipperfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic e h6viimw+*x kr p8d49onergy is lost during this collision?

  A car of mass m, traveling wi/ wvu hjfo*s+z 9m;n*bth a velocity 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 initia+wfmzn *;*bhu v/soj9l kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction bu9 o: ore1 o4ipw6iz1qpries itself in a 2.4-kg block of wood a rest directly above it. As 6:o4o iwr po1qiezp91a 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 with a 300 m(3ya 6* ;tqz rh.8ajyqct5rd0-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See 5t3qya6tm(q ;jz .ar* d8crh yFig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east 4qyqc.8pzjzud-t(p2 8v okg+o/l j c 5collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) W8co 4 kj ucvgl82+-o/ ypt5qpdz( zq.jhat is the direction of motion of the cars after collision?

  Two objects move on a level frictionleswb+jxl1o5 iz8s 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 coml5+b wox8 zi1jbined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towar09) qs9*m k d rg7qb*bm -u1i+ bg:2uahltrhwld 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-kgmgg*0d 2t9h k1bs9w+bqiqumlbu7 r)ah l*r -: 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 mass sits at x = + 21.0 m. w ur op95iz;s87keq3)zz+qgo Where is the center of mas o;8qszi57k)9 pg ueowrzz +q3s on the x-axis?

  The center of mass of avhedwq-j 8yv *9a9dq. two-particle system is at the origin. One particle is located at (3.0 m,ev.h q wyd*qj 98va9d- 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 agacmyf; w.*)y-wyx0e oyc r; )t (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center owcmgyc*o.y; w y)fe )ary0; x-f mass.

  Three masses, 1.0 kg, 2bcff5bt :,lt50.e fxi.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.:55tbf .cx,f t0ib fel What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), ape* mp4--p;xkiz;es o nd a 1.0-kg mass is positioned at (12, 0). What 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 aixs*;pmpp4- zk-e; oet the origin, (0, 0)?

  Use Table 7-1 to calcudi jwga, pf372late the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume fjpwdia237,gthe person is 1.60 m tall.