What is the SI unit of momentum? ohgbnkpz:9-5

  When a cannon fires a cannonball,lh*0*m vvq(njk o-e yntu)xzs++k m+. the cannon will recoil backward because the

  A freight car moves along a frictionless levesq;w k7 f;3ml:ckvgv(l railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happ fwk(ks;;3gvc mlq: 7vens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionles+ fsa4u pn45m8odkl2 ss ice. What happes4n54 up 2om8s+dlfakns to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equaepi,sp 0yav-,o7ta7 z l speed against a wall. The ball bounces back with nearly the same speed with which it hit. Th 77aao-0,iv,eyp ps zte putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a mome ulc.4bhdk5c at(68 mqntum p. How would you represent its kinetic energy in ter qub8c5 ak cltd(46m.hms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it i ql*: zw4ml(ak(ylv v9n the previous pitm: y9l a(z*kl vvlwq4(ch, the magnitude of its momentum is

State Newton's second laegw,*wk .)s :tde :n zni6r6maw in terms of momentum.

State the law of conservation of momekg 1g3..j rid swrm6n+ntum.

  The area under the curve on a Force versus time (F vs. t) grap )tc*h d0k2r;gi9c zpcpm73q9xe f*y8x: ijk nh represents

  Which of the following is an accureh 51o nm) vy5lpcju.8ate statement?

  A small car meshes with a large truck in a head-on collision. Whj) cuuj(p9a t7owy5h 9 gujb1(ich of the following statey9j(g(ut 1p9 joc7auju5 b h)wments concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the samvsh) 0 zg-gvi)e height, and rebound off the floor. The red ball rebounds to a highe- zg)is)0vghv r position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at1i eu;;fy9 *natw a7c (lg1 c1wu3bcad 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 slowly to the east. Which object experiences the ;;ucadbec c fat1 39wi*u yn w11l7(aggreater magnitude impulse during the collision?

  Two objects collide and bo8ft9twrb7 gb 6unce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 1n,bsxhh+ o j/6.0-kg objn jo1xh+hs,/ bect moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2. c5)xb snmfd360 m/s tackles head-on an 80-kg halfback runnind)6mbc5 fxsn3 g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum i(l)jxy byac9 7g5ou,es conserved, then which of the following statements is true about kinetic ene)j7 y b(uey5oxlg ,ac9rgy?

  When is kinetic energvabqu44 w3- ehc. 5zrey conserved?

  In a game of pool, the white cue ballls 2jvcwteh8w5+-2 ej hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of cow +v8wct2he2js -jel5llision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a he 7vl;mwct(gjfw )c5n/avy ex7mn(lwt5)gf j;c/cvw ercise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to pzyo sn+ecu3(3b w*9m the right collides 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 immediatel we bn9oucz *3p3y+(msy after the collision is

  A rubber ball with a speed of 5.0 m/s collides he,br0 qacn m314i f+ksaad-on elastically with an identical ball at rest. What is the speed of the initially a04im+fb1ns3kr ,c qastopped ball after the collision?

  A very heavy object moving with speed ayf3d be)n .,yv collides head-on with a very light object at rest. The collision is elastb)nyde yaf. ,3ic, 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 moving with speed v collides head-on with a very heavys o)8ub ci(o+o object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy si b)oo8oc+ u(object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a3lz;. ,0v +u*/jpth6wuxjwb kskb bs* yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity o*s+uw3 j b. tk0jzl;s6k/bw pux*hb,v f the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on wi3mkac wu +zget+6 01xyth a very light object moving with velok awc+zg y+xm36e0u1t city -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 the collision?

  In an inelastic collision, if the momtp1 qsx1q.,4-zb2rt2cue:n)wwv7t d k rs8b zentum is conserved, then which of the following statements is truebqpvzz4 -t7 n)qw1t128k sxurc2,d sret.:w b about kinetic energy?

  Two objects collide and stick together. Kinetic enerxsd 9ibt mt54+8-;dhyp; f s3hp(sg nbgy

  A 3.0-kg object moves to the right at 4.0 m/s. -+ k i82yqm hsr;rr:6z hlql8eIt collides in a perfectly inelastic collision wiiy :8 slk+r82hzqqrem-;l6 hrth 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 collidesvgyd 1; juotr5cfo,/) with a large object and sticks. Which object experiences the larger maotvc/ 5j1f;g) oyrud, gnitude of momentum change?

  In a game of pool, the white cue ball hit -af+wx1 uh*ae-jaa v8s 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 following statem:g4h;zlk fcfm*d6j vr-8ag +rents is fals8acf*jfrl4v -+d hmg g6;r:kze?

  Which of the following is a 0v+;ea6w yssvfalse statement?

  Tightrope walkers walk with a long flexiri;e qz) u3bi3ble rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before 4hy:l d,(7w b7 hvr5o)jsk bez,2vezjhitting the ground. Neglecting air resistance, the center ofvhwze,y k)jl5bod 4, bhe:v r72zjs(7 mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was comple 9x)jdu/nrx 0ldjnfxaf 52; i)tely inelastic and both cars quickly came to rest during the collision. What is true a0a/jxdfx j2l5nn ;f uid r)9x)bout the velocity of this system's center of mass?

State Newton's second v vvdee(gp6k;vz( ; (v9z*fzslaw for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 3kzec3 66 /tlku5 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its rlnw n (;y3u6bhw5r373st aipmome6yb3s;p u3(wil5nwha n3rrt7ntum?

  A ball of mass 0.10 kg is dropped from a heighrud y ym1rvto9 6y6rs)3h( jg-t of 12 m. Its momentum when it strik6dr -o9m(t)6u hsryj3y r1yv ges the ground is

  Two identical 1500-kg cars are moving perpendicular to each other.ct0*vdyjy8 ll 7fly0pg;a- w9 One moves with a speed of 25 m/s due north and the other moves at 15 m/s due e-tyldv7 p0lg;cy wl 80* ayf9jast. What is the total momentum of the system?

  A handball of mass 0.10 kg,6uf(izwk3 : vo traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the changeiw36 :(fzvuok in the momentum of the ball?

  A 0.060-kg tennis ball,1 0buq mhu6h7r initially moving at a speed of 12 m/s, is struck by a racket causurmb1 06q u7hhing it to rebound in 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 the baseball) is placed on a f .fj/:kh ksfin4obb 7;v1dpt.rozen 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 pitching machine? (Assume negligsb 4id:n1j;t/.f pfv7hokk.b ible friction.)

  A 70-kg astronaut is space-walking outside the space ca9g ,zus.yuep 7-x+ gfypsule 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 axpzeg, f.y79y-us+ ug way from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on l;+jql gqc bxe0o ea.jv *k(4pyl:d+wpo4 r57a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of :5bor7 p+vc y4d gkl0epealwq;* x lqjj.+( o4the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/cn5t +;iwqy r9d)z /zw4b.ayrs to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, whileaw+)bc dw;z5yrtzi nr /y9 .4q holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along.qcr6gbm)n0lmr2 bm/ a level, straight road at a speed 0 bqb)c lm/m.2r 6mgrnof 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the re4y1csrz.(x e har of a stopped car that has a mass of 1500 kg andyh(r14 ecs.x z they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed s t9 /9j fp6z6nbknpfs;yjj9:to 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 released. What is the speed of the two cars after couplingj :snf ppz/9 69knfy9t;sjb j6?

  A railroad car, of mass 200 kg, rolls with negligible friction on at idbh17h ,py9 horizontal track with a speed of 10 m/s. A 70-kg stunt man drops sti,7h9th 1bdyp raight 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 (witzkao*xp+f+8).mrsuhgp r;u 9h respect to the log). With what speed does the log move, with ofh+sx8u z ; pr.r) *mp9g+ukarespect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sudde5f p k5j 1ogzi97cml3enly increases to 15 N and acts for one more second. What impulse was imparted bo7 mepk13 9jlig5czf5 y these forces to the object?

  A constant 9.0-N net force acts for 2.0 s pyiajv7l0 lmp0*wa; +on a 6.0-kg object. What is the object's change 0j a+;awp i0m 7lpl*yvof velocity?

  A 2000-kg car, traveling tob:9)d2xw1 t; qcc. gzyrk wb8k the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is t1kbrw cx )zw8c 9d:gb .y;tk2qhe average force the car exerts on the wall?

  A 2.0-kg softball is,tkmxp8w -ad+tam0 aa 2-o4 cw pitched 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 ak -0x m+awt2a- pcwmod,48taaverage force the bat exerted?

  A 0.10-kg ball is dropped w,nu61gke.tf n1wcre lwh76 , onto 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/s, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the magnitude of the averagnw1rghltf,e1 nk6. 7 ,6ucwwee force exerted on the ball by the table top?

  A machine gun, of mass 35.+0vfs,hs v/tl:z*xz oy9cr j:negg *)0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute.gz0ln,z+e 9) rx:vs osgyvc:f*t/ *jh What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildinre u r qappq .*mb4qmzx07f)6*g in order to knock the door down. This requires a force of 100.pubaqfrp*x7 6 4rq 0zqe) *mm0 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 drainpipe at the rate of 120 kg per minute.hrog v:j-.rn4txjx : z6z9u x7 It falls 3.20 m to the ground. Assuming the water doesn't splash up, what averv6-r:zx7r4h.tux 9on:j xgjzage force does it exert on the ground?

  A toy rocket, of mass 0.12 kg,wj-oh dr995kjs1+h fy achieves a velocity of 40 m/s after 3.0 s, when fired r9yf+d1ojw j5 h9hk s-straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kgwmzem:9-m:4 im* vczo0) sbkq and 80 kg, are initially at rest in outer space. They push each other apart. What )c 90m ewbso4mz*-kz :vqmim:is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speej8xuao2z c o35 2cel5wd of 2.0 m/s. It collides 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 ec5 x 28wjou35oz2cealnergy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direc1 5v p sxlp2u9s5 4k.nmles9qztion makes a head-on sqln.szvupx s5 p9m4219ek 5 lelastic collision 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 i8m d9uoa3+kf ts fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the bauf9otk 38dm +lock right after the collision?

  A proton, of mass m, at rest, is struck h;z yz*g i)wo6cead-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is compg*yi)zzw 6 co;letely elastic, 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 stationa1zb(8f yshuy p+j *8q,yorfl (ry ball of mass 100 g. The collision is elastic. What is thjy1p r lsfoq*(h+u 8,(bzf yy8e speed of each ball immediately after the collision?

A ball of mass 400 g moving towaicy y2(d5aqv.2yd;- 1xllafi5nzz yji9(6 xz rd the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasticv dayz( lfi1c ya(yi; yzz29-.id x565jqxln2.
(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 x/l)o. 2 1zy d4slo: azwj z82ve*jacv)d9oy mwith a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after o*d) ozys1:lvxjzela 2.wy9 8 dvj/2o4zm) acthe collision?

  A 2.0-kg mass moving to the east at a speed k0 mr85ler sn( nf);mpg rrn35of 4.0 m/s collides head-on in a perfectly inelastic co 5r5)rpm8 (gremfr30 ;k nlnnsllision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a ,qg/ r74sauz6 qmsa4lvelocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock tog6,s a4ruqsz l7 q/ma4gether in this head-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 itself in a 2.4-kk 1zaz w d18es13luv,en,e9bug block of wood a rest directly above it. As a result, the bullet/blockne1 e9veza z 1,s,d138ubulw k 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 trjd. lby0o8*woj 0u3zn aveling at 60.0 km/h south. The two cars stick together after the collisionbw *oz0 .oud8 yj0ljn3. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.02j wpw57cv xm2 j lvy.,olz-m* km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) Whaty- m* 7vz2wmo,jl2 p5v.c lwxj is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves eac++phl7f,f a ist with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly+fic,la+fh7 p inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward)tg,cckw8-ng-eg:d* wq3hv h 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 e-e)c g,thwng :cvwg8 q*3kh-dast 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 a+cm*c (bfyu6,,sy c3m bpc;ont x = + 21.0 m. Where is the center of mass on the xnc(6sf* m,cy m,p yu;bc bo+c3-axis?

  The center of mass of a two-particle system is at the origin. One particle g-zqh r4,l/ wkg)lun;is located at (3.0 m, 0) and has kln-uhzq4gr ); wgl,/a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as ,k rg1zob9iga5zsg2 c+nz9:wqi; s* lfollows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), aa;29kg ql19*:bz,i+s5 s zn w cggrizond 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, an:h4s /pi +yuq rlqa0/9:rccgcd 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -49p:qa0q+ rgcu/iyc c/l:s rh2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at (12, 6s;g tslrrk3) 0rs t r;ks63l)g). 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 at the origin, (0, 0)?

  Use Table 7-1 to calculate ndv /lz l j+(ou(fs.i.the position of the CM of a whole leg including the foot when sio /nujl(lf+(zd.. v the leg is stretched straight out. Assume the person is 1.60 m tall.