What is the SI unit xae 8qu fffxv46l+l u::3h9cc of momentum?

  When a cannon fires a cannonball, the cannojhy ++3ll um/yn will recoil backward because the

  A freight car moves along a frictionless level ra9qn l8 0ufxo8*lmik5 nilroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into qx u8n0kfnoi 5m8l*l9the car. What happens to the velocity of the car?

  A child falls sideways off a c- bg -d )( vzg ky+es)gy9(d,qz*xphzsled while sledding on frictionless ice. What happens xgz bz(gqd* gpv9ysdy,-e-kc) z+ )(hto the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal , 4h7 shuqi8gpspeed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the4s7 hqgip8h u, wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momenkxot5f y*8n(ctum p. How would you represent its kinetic energy in terms of these two q8k*yn(x5 oftcuantities?

  If you pitch a baseball with twice the kinetic enerhhmsas p11r;)oum 53z gy you gave it in the previous pitch, tm;zmoh 3shp1ra1 s 5)uhe magnitude of its momentum is

State Newton's second law in terms ofp3omyde 5hxg+)aw/c( momentum.

State the law of conservation of momenufe :38,h xpantum.

  The area under the curve on a Force versus time (F vs. t) grcrbu,sua53ezk) :9g xaph represents

  Which of the following is an accuu2im jjeke8sjnt 4yj2yb9( ;6rate statement?

  A small car meshes with a large truck in4o cpof: *ws,s a head-on collision. Which of the following statements concernswf4o, op c*s:ing the magnitude of the average collision force is correct?

  Two equal mass balls (one 04xusx 02q 0rtbt +shired and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjecte i r0u4btt2xxs0 0qs+hd to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 ss-rn +)seat 4m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, stser s+an4- )and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Li6 kpnxxez ( v( loux.351-: irpom(hbrnear momentum

  A 3.0-kg object moves to the right qga5supkr;k 3 +n4t3e1mw gg4 at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2ak4kg;t q3 gs+ unprgm14ew35.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s ta l j:abk4y.pk /z 0hn(rtg6uh3ckles head-on an 80-kg halfback runnibjh(:h 0ntgr al3 .kp kuzy6/4ng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then w.eu6q.6f ypf:3 zh)9zgjjrm which of the following spz rej hgf.q 6yz9w.)j3f:mu6tatements is true about kinetic energy?

  When is kinetic energy conservefx mqewe0- a**d?

  In a game of pool, the white cue ball hits the #5 ball and stosm 9o jo;s8/u2ckl0gyps, while the #5 ball moves away with the same velocicm8/yoo;k0 su l2 jsg9ty as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides w mm fgx97m.h)j;iyxi)hh 6e1 dith a heavy exercise ball at rest, the beedh 6 ix mm9);j1hfxig y7mh.)ach 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 collisio6o bh7r z+bbw6n with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ba7h6+wzb 6obrbll immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collidesz t6wkd ,h+wni+j9 :dt head-on elastically with an identical ball at rest. What is the speed of the initit,d9+:ih6 tkw+ djn zwally stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a vylf m)03/o v)y.rssr) 5 kqqihery light object at rest. The collision is elastic, and there is no friction. The heavy qv/orqk3 )mlh ).sy)y fi0r5sobject barely slows down. What is the speed of the light object after the collision?

  A very light object m 3 bi /c5tcgq(vor(3yioving with speed v collides 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 after the cotc v i q35or/((gci3ybllision is

  A red ball with a velocity of +3.0f;jddf6 a,sg5:w4r pq m/s collides head-on with a yellow ball of equal mass moving with a velo,;r q6fgjddp sa45wf: city of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving:rk2ux )fusv4 ,ft0d k+;qme g with velocity v collides head-on with a very light object moving with velocity -v. The collisio+tkfmq4;,ufr eg2 k vus) d0:xn 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, if the mo0:bj xl 9niu3p yp,prx + ssq/c4tt1(omentum is conserved, then which of the followsb9lortpjx+p,c3 xsqy tu (/ i:4p01ning statements is true about kinetic energy?

  Two objects collide anddswez0. i3a,o;yl7 y p stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4gyw6dak,1g)g 0,xy qoq1+e k w.0 m/s. It collides in a perfectly inelastic ey oqw+1qwd, 1 06)yxggk,gkacollision 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 objectqhzp 2i46 ks:x and sticks. Which object experiences thezk:2xh64pq si larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 bab chpp9d;s+ d)5ai 5fyll 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 following statemjk,:kzj 1jwt9lmlkh++pr97xpn z7 a 4ents is false?j hk+nzp+79z7 kp rj9m:w ak,tlxj 4l1

  Which of the following is a false statement-szt*ju j/ux0l ;g cb8?

  Tightrope walkers walk with a long fle(zhuoa* 4lpa:j mo5()b+ fbjbzdb*b* o0 iyp- xible rod in order to

  A plane, flying horizontally, releases a bomb, epiys 60 a3kd a.1b(dhwhich explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosio b s3pa. dah1ki(d06yen

  Two cars collide head-on on a level friction-free road. Thwhm ykuqj)/0bbjn/ 6z2b ekg;k ;4 if+e collision was completely inelastic and both cars quickly came to rest during the cez mb/y 0gjk4hn 2 ifu;;wk)b6/q+kbjollision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particlk pi)u-4yzy75ubn 3f1iwke*op , / *p orkt-pces.

  What is the momentum of a 2000-kg truck traveling l+x jw7v wp,63pl6vr tat 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magni f d9bhh,;qfbbbe 29 bv/-)wr) jdu5dztude of its mome9-9d;evf bbz 5df b) wd)b/j ,qhr2ubhntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m.d9q t:jz )zb +f5z g tcxrdpgai47t+7- Its momentum when it strikes the ground ax4zrgzb f j)z:t +5dqtc7g7- t di9p+is

  Two identical 1500-kg cars areq c9 kp*mm05a/c/evlu moving perpendicular to each other. One moves with 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 syste9ue/ vm*am50qpc/ lk cm?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, stj; xk+fs*qt4ooyn l0 1rikes a wall and rebounds at 24 m/s. What is the change in the momentum of theo;x foq0+kny1s 4 tj*l ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is stbbp73j*yefn8,ru4 gw:p q wo ) dl2*aoruck by a racket causing it to rebound in the oppodp7j:yb neurwgw q) 3foo4l*2b p8*a,site 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 fro uq-i *rzg x1h.k3stjv:pwc;u1q* jk .zen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the pitq *jh:1xwsc; .kvuzg ru*jp t-qi1.k3ching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkin o.97xpr4fr 7rru1v nrg 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 capsuler 9 rrr7fu 4ovn7p1.rx. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a larn nxl-k *w5;u9d lsg,yge object at rest. The small object bounces straight back with a mon ydl-gu;x5kn,wls9* mentum 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 2k;lr wr0zm//gdl db.your friend (40-kg mass), who is sta mrkl/b.lgzwdr02; /d nding 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 levh.2snd4j tv0 5e5btemel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total mhvms0en4b 5 d2etjt .5omentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of2l 4ix; lamh5t a stopped car that has a mass of 1500 kg and they stick together. What is the speed of lt2mlax h5 4;ithe cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level trtb ;gxjg(vt 61 y*apk*ejn32zack at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and wigat(kj61g2tyzjvb p;e3 x* * nth brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with nefemo jn/s-e;. gligible friction on a horizontal track with a speed o ejsemo.f-/n; f 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 this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respect t2pwen3eq e(wv7b8 y0yqz7 qi *o the log). With what speed does the log move, withq07yy*vzwbq(w 2ep7e 3i8eq n respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddes,g1 at,c (qtgnly increases to 15 N and acts for one more second. What impulse w,tq g,(s gct1aas 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 objec-ek19p)i20kmpfnlkb9 ,87falu ih;hyxu (zf t'0fzu p9291n 7fk fhblhxak ,iipk8 )ml; (-yues change of velocity?

  A 2000-kg car, traveling to the right at 30 u/)oq :wn.cnvl 1ft1 bm/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the c)1nbfw /v1ucn:lq.ot ar exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the bal5f-wm1 cyrre;a vl, 7ll back along the same path, and at the same speed. If the bat wlfyr a5r;1v-mc7le ,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. The speeds of thm 818ofeu6 a icqpq0m3mg: em9e 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 0o88umq pmig36q aee: 1fm90mc.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-grawe+ pn rpp u il(h*4*ve +axi+b.0b1qpm bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exertedq+n4vu.b( lh+ e* bwpip p*p+0axi1er on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to kno ;qtf* l5gn)awck the door down. This 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 gq*l;a5nt fw)back?

  Water runs out of a horizontal drainpipe at the rate of 12y1h fd z0/z,ubp/9z ax0 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't pfbz10hd/x/auyzz 9,splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40c ( q 3;od;9c4 mvn pp-axcuy)p-,frer m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engx-p rm;dy-(, 9p uc3 ;q4rcfnvoeca)pine exert?

  Two astronauts, of masses 60 kg and 80 sbwytq-x0 j,: m,5rgpkg, are initially at rest in outer space. They push each other apart. What is their separation after tb p0-jw ,mqrxgs,t:y5he lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s3j8khnbl n0xi6; ;x ggvkof*7s5 ;rt h. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at gr5*b ojt7nfnxhv8;60gi ks x3l k ;h;1.0 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 +14et;8wuur) xkmw p0pvhs* / lx direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of tl; w0vk)s1 w/4phxtm*uu8 per he 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 resxxdx1lp( ut9ib8hijn0ds/m/x.1c) wt. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the colli0/hbw1p1 xxil i d.x9( c8nud tj/s)mxsion?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which -ir:l8*53mpfqxlkx 5q ey pu5consists 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 neutroil5k:xpelqu qp f*5y m358- xrn's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mas;yi f* mw)q2 cah3uiv.s 100 g. The collision is elastic. What is the speed of each ball immediatem2cf3u iiw* yvaq;h. )ly after the collision?

A ball of mass 400 g moving toward the east with a e(hf yhec) au,i8j- n- y2xkn.speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is 8(yce.yk ahij)hfxn- u,e2-n 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 uv(b; g4rir+a3.0 kg mass at rest. If the c +iv bag;(4rurollision 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 cpw82nbdr+r;xq mv(t,wrk;fw3 ., njuollides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How8rrr(njwd ,k32xt ;q wbn.,w pvfm ;u+ much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagonq0ut sccs1w8e2(n e7t, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction wu 7ett8(es0ccqs 12 nof the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertica2hfv6. o hgjtq5u;kr1l direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combrqjf2kgo .u6 vh1 ht;5ination 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 3000-kg car trari;gyp reew0 :pqn(/6 veling at 60.0 km/h south. The two cars p6erg pri0y:eq;w(/n stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 kmu+ h3)ihlue di0p hiqj.p+-d3 /h east collides with a 3000-kg car traveling at 60.0 kd0 3.u+3 ii+-puehlihj)h qpdm/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 frictionless surfa,nl,tg/tz 4ve ce. 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 maglve z,,g4t /tnnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving tjre,b -m1)axkw --,ylz p tle-oward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment movinb zye,l , ler)k1-xm-w-pjta -g 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 mass sis6jzi6 (ojiaj5 h,u;c ts at x = + 21.0 m. Where is the center of mass on the x-axc ijojiah(,j z665;usis?

  The center of mass of a two-particle system is at the wse3s2zd2y2b origin. One particle is located at (22d3s sy b2ewz3.0 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 ko;na ;a9; puc36k* )uairvdmy8gaq-wg at (2.0, 0), and 4.0 a pa 93kg)*yiadr;uo6; ac qm-nvu;w8kg 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, are located at (0, 0)*6o vl:j aly ;mcl)f8mt4 sr;a, (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What yo)l64m;amacrl;vjst8l f: *is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and /b )f2 utnyau;a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg m u/afn)2ub y;tass 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 ofvb qy97;4;o.s ;mexe9q,s1h qigxuhf a whole leg including the foot when the leg is stretched straight out. Assume the p4h ;qbyuq sovie, ;9m.1qehs;9 fgxx7erson is 1.60 m tall.