What is the SI unit r2ly - u.ovqmg-if58x z1 qgq6of momentum?

  When a cannon fires a cannonball, the cannon will recoil bazd7hwh lz bp1aj7 3) .)1gn.v 6mhintbckward because the

  A freight car moves / n l8mk)3msd f+tp67spsy lbi c*5yy.along a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the vl 8 y/+sy3 )*7ykspbml5sdfi6. mnpc telocity of the car?

  A child falls sideways off a sled while sle 3u 6pdr7(qhqzdding on frictionless ice. What happens to the velo3 (hrp zu7d6qqcity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equal 2,i :pcrau*ahspeed against a h*ciu p2raa,: 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?

  A sailboat of mass m is moving with a momew*g5k c zmo8 yly.2.hhntum p. How would you represent its kinetic energy in terms of these two quantl wc.h .yo2 *hmz58kgyities?

  If you pitch a baseball with twice the kig*r mir8g ;c 0t-/euqtnetic energy you gave it in the previous pit/ e8-uc;gm* trriqt0g ch, the magnitude of its momentum is

State Newton's second lbd5g,vh p) .yhaw in terms of momentum.

State the law of con.w;- j k3*rpb vyxu3nxservation of momentum.

  The area under the curve on a Forxgqin q z*17qw+q0jm/ct* ui1 x)ifs+ce versus time (F vs. t) graph represents

  Which of the following is an accurate stat 94 s n0593,qgqkgfoc5mvvggeement?

  A small car meshes with a3dq.ry k 7ubghbx6+ ojv 7c2-i large truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is j.db3g u hbo 72i7rq6vx k-c+ycorrect?

  Two equal mass balls (onud b4.c*rp2qhe red 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 subjected to the greater magnitude of impulse during its collc *42ubdph.rqision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/xe: rnch r-0s8s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the eacr8 0- :herxsnst. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear molw;.sfaikf4,not (y 9 mentum

  A 3.0-kg object moves to the right at 4.0 m/s.u;je wx n);m/x5x1vsf It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statemen; sj;/u)5w e xxm1nfvxt is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kgfy,ngdh3rw i7;1e c(thny 75 oddsz98l g 9m:x halfback lhy,wh9t mo1;3zdg: (r9fn7x7ycesd ni g5 d8 running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, th -nu )o+6mmof ;k8db zdxdt42een which of the following statementsz-etf8o 6d dn;b4kmxu 2+)dmo is true about kinetic energy?

  When is kinetic energy conslf41 / rccyhyj *pfr +45.ncvderved?

  In a game of pool, the whr4h sh5y-q3 wflkbl (8ite cue ball hits the #5 ball and stops, while the #5 ball moves away with the sameyf3h 5llsbr4(8w kh-q velocity 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 with a hea7m q3tkuc2ajuq),z;urd * 7fevy exercise bauef t)7ua *qqzdc3u;r mj k27,ll at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collnllmty /(;b*)c rr)veides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediat(* tv;b )mllrc )nye/rely after the collision is

  A rubber ball with a speed of 5.0 m/s cqx9axh 3;sq)kt vc ,q/ollides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the co3 )qxs ;/x9hc qtkq,avllision?

  A very heavy object moving with speed v collides head-on with 6 exjv+n2uw-ca very light object ux2e jc-wv+n 6at 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?

  A very light object movi*wg/6/w6mh8oat e inwng with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collisgm wo/6 6*8hen wtwi/aion 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 head-on withs/n7 q38v frza a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow baln7q/ faz3srv 8l after the collision?

  A very heavy object moving with velocity v collides head-on with a very lightd w*zkzj5n: nxi;wdsp*c s6 9y35a (bf object moving with velocity -v. The col dn:cjik6xw9(*wy 3pdfbns z5;a 5z* slision 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 moment 7y +rylsek2o6 1;nq /rvbwsl5um is conserved, then which of the following statements is true about kinetic energs 7s e5bl+16qvyrw/n kyr;lo2y?

  Two objects collide and stick together. Kinetic enerb ;3;+mp - ewrtnx48v5fgq/d+ekq/ra,ibvr ggy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in41oxf9 eaicgrxu5g6 6 a perfectly inelastic collision c 6xoeg1x9r4 ifu5ag6 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 obje h6h af71tir3s*adeqc+ e8-w p eh.yp1ct and sticks. Which object experiences the larger magnituspheq dwr 3 +-pt*e6.fe8aiach171y h de of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and - m)pb:w 3 0buuwcb,hw-yfml0 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 stateme*bzqz5 u0g5tunts is false?z0gz*ubtu5q 5

  Which of the followiad.t,b6 b4tkm*g n v+fy/3,hm8ayujc b*vdk0 ng is a false statement?

  Tightrope walkers walk with a long flexible rod inhut9 cie*0)7ln s(iqq order to

  A plane, flying horizontally, releases a bomb, t() am0r9o3uxnbvs3cwhich explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the expl rsnbo3vmu(x0 )a39tc osion

  Two cars collide head-on on a level friction-free roa3dwj-u ; sib28k2 ohzod. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's cenk8d- ;wu2zo hb ojs23iter of mass?

State Newton's second law for a sys v+p8,hhu;gzztem of particles.

  What is the momentum of a 2000-kg truck traveling atqy6+gz dtfpqd .6n-m3 35 m/s?

  A 1200-kg ferryboat is momzz pm7t,+y4ol ay e()ving south at 20 m/s. What is the magnitude of its momentummle)7 y ,ao(t+4zpzm y?

  A ball of mass 0.10 kg is dropped from 1k3 x+kdy 3 zmglxp1s1a height of 12 m. Its momentum when it strikesgkx 13xl1z1ysk+ mpd 3 the ground is

  Two identical 1500-kg cars a5y 78f wgknx(cre moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s dck ( w57n8ygxfue east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travelu ir7ho9fap;v a*z47i ing horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change inza 7 ;fupvih*79i4ar o the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 udc6 / )hcmb f1gm*-j*6h /ofwuxt5wrm/s, is struck by a racket causing it to rebound ihjwt)g*6bh 1cowf ud *fmm6/ r/5xc u-n 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 thggr6.s ;lzcy 7e baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal directi;gy sc7z l.6rgon. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside th( 1ozd4t twrj6e space capsule and is stationary when the tejrt614wo(dz t ther 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 astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/szr5 z9)) kiiem5 zowhx2 6vhu7 approaches 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 magnitude of the large object's momentum6z)2ouwvk5 z5zh9)hm7rxi i e change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your fddp m;2;p*hwj *ee:m9v 5pixwriend (40-kg mass), who is standing still, with open arms. As you collide, 9j ;p;mwde*m2:xpid 5h*pw evwhile holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to t; .xdqa ehx3xejw9;a ;he right along a level, 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 momentum after the cex9e;3hadjxxwq. a; ;ollision?

  A 1000-kg car traveling at 25 m/s e.kve lws5 h,6runs into the rear of a stopped car that has a mass of 1500 kg and lves 5.,ekw6h 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 alontkgw.sz v 6+j/g 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 released. What wzvtj+6/ gs.kis the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible wk e0+qh5szpco13 3anfriction on a horizontal track with a spee 3ea3wqc +sp0 1kozhn5d 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 this happens?

  A 60-kg person walks on a 100-kg l)nklpb7g a7f 5gelwn6m;1.cw og at the rate of 0.80 m/s (with respect to the log). With what speed does fe . 1 lapnc;k7nggm65bww7) lthe log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force s)v)3,k) n5so8s o xssrv0o /p vhf 4cjbaji;+fuddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to tb)hvs0s iss v f)3+ao)j 5v8c,ko prf/;xj4no he object?

  A constant 9.0-N net force acts for og6u ;ly+h5kur uocxkr*0vtx7cj 94n. s 9 4vs2.0 s on a 6.0-kg object. What is the object's change oj564+cgvv rxl0*n4sx97k uuc;u hkt yros9.of velocity?

  A 2000-kg car, traveling to t5nrnml so+807dd4z jahe right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exermo a75 8 sd+0d4ljnrnzts on the wall?

  A 2.0-kg softball is l x 79 pupypo8p65g(fwaukv+1pitched 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 fo1+pw6uyao 7kp(9f8ug v 5pxlprce the bat exerted?

  A 0.10-kg ball is dropped onthty2p*fc hta0,rk 58w o 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/p fta8c t0k,r hh*yw52s, 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 50.0-gram bullets, wit8qn v;saz,;ey h a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average fozy,;8v; eanqsrce exerted on the machine gun mount?

  A fire hose is turned on the door of a burniuu 7.p-hk jymn31ra( sng building in order to knock 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 needk7u13jmns(u -r.yahp ed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg 7.hfxxcl jop c l1(0x5per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the gr1xlc7 l(oxhfp j50.xc ound?

  A toy rocket, of mass 0.12 kg, achieves a velocijyk4lfu,e:c* x2 ov6ki0g-hl ty of 40 m/s after 3.0 s, when fired s6cxe,j- fh4g2ukv0l:ki l oy*traight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are in*k* :z.;sr h ckjnpn0aitially at rest in outer space. They push each other apart. What is their separation afskhkzcn;0 rj*np:.* ater 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 cg*pc ;6gzk vr(ollides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision p*v;6g cz(gkr?

  A 0.10-kg object with a h8gzj7 6x1kr57plrw vs rn-l9 velocity 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 object after collisions hzw8kg 5vrjp7xr lr9 l67n-1?

  A 10.0-g bullet movingx5m taoew( 45dpr2.e,pq5v,bkoj kv) at 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of it.54pq d,bkm5v2p(jkwoeox ,r a et5v)s 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-pu - bodrs( *17qmxieedj y+c1 8qb;x+earticle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have af1esx -jxd u+bbi1*(com 8dq 7y;e+ erqter 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 ball ubxi/.)sr.4f z aht cfq6f +0tkfn -a4-athe1of mass 100 g. The collision is elastic. What is the spetf+hf.a.kx4 b-0ctisefa a-unztfh4 6/qr1) ed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a spe.b* hrr*y1jji;ew3 zhed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision i ;rhh.je*zrjy bi31 w*s 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 :1obi3o4dg(mx d/mgecollides head-on with a 3.0 kg mass at rest. If the collision is perfectlyd3:igox 4m bgedom/1( 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 collides head-on yi ia x8lk);.qin a perfectl i aq)lx;kyi8.y 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 *nq s(;hn) 2gvdk v9owa parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kineti;w )d*nh9vn k qgsv2(oc energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries zl jjos4m7mnf216km; itself in a 2.4-kg block of wood a rest directly above it. As a result, 42nk 1m7;f zjm6osmlj 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 3000-kg car trekvx+c y78a5 d go-i)yaveling at 60.0 km/h south. The two cars stick )i5yvg doy+e x- 8k7actogether after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with y/p0okf ,a;*ppn7xym q al;y3 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 direction of motpplp;q f;ynya*3mxoa 0y , k/7ion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east with a m1 dibtri77;vdk;8zmsy 8 h+bl omentum 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 combined momentum after the c+msti78 dh;dvrz78b 1 lbyki ;ollision?

  A small bomb, of mass 10 kg)uyo-rpr r;cnmyj 0p13ze0x 5 , is moving 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-keur)m-njy xrc poz531p0 r0 ;yg 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 yra 5 1ygq+6d7 swf.g p+/gg,eywkqr2sits at x = + 21.0 m. Where is the centgw yg+.r qqpgrw2f51+ gy7, yd/s6k aeer of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One par;tyqd +vm /r +:zv+9;s2quigzp 8 rm.oz3gyzrticle is located a v ;mziy8z2.mp+vor/ d qz qgryzr+:s;gtu93+t (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 kg 1t4dmseywj -,at (2.0, 0), and 4.0 kg at (2.0, 1,mys1wt e-4dj .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), (1.0 m, 1u0ryswe7 +5wq.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of ma w05sry+7uq wess of the system?

  A 3.0-kg mass is positioned at (0, 8.0p nrwp h4mk*0s 17wj)*vmq (wn), and 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*nwn)0 4skw hr1jpq mv*wp(m 7 at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole legum*a :.4ki kie including the foot e. m*u4akk :iiwhen the leg is stretched straight out. Assume the person is 1.60 m tall.