What is the SI unit of momenj 7puu y(.gqd1tum?

  When a cannon fires a cannonball, the cannon will recoil backward bechd2) pekta1wszzs7j+ 5.;svo ause the

  A freight car moves along a frictionless level railroad track at constad oh6yhu) w;5xnt speed. The car is open on top. A large load of coal is suddenly dumped idhx5y6ou; )hwnto the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on fxf33r9n nc t4fn +an.j.cuh8i rictionless ice. What happens to the velocity of x. 98ncnjithna 3. cf+r43ufnthe sled?

  A rubber ball and a lump of putty have equal mass. They are th7knvvj b:j: qpwfj l .mh,ua(5ydm79/rown 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. Whml:h,/.:fajv5qbvwn y 9kuj7m jp7 d (ich objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you representnfd25(fn, giv its kinetic energy in terms of these two quanf fgn i2(vd,5ntities?

  If you pitch a baseball with twi 4rjwlgi) p(4 rb4hfg,ce the kinetic energy you gave it in the previous pitch, the magnitude of its m rgrfilphg4(4jwb4) ,omentum is

State Newton's second law in terms vi9 ou r:113ukl.-p5ads wvvwof momentum.

State the law of conseryj pti1/tbqd l0y +19xvation of momentum.

  The area under the curve on a Force versus time (F vs. zfaa (u 2-.qkc4wtm b0-/nx2d-jn zs .fju x1nt) graph represents

  Which of the following is a8c af;p;scy+ilp2-a dn accurate statement?

  A small car meshes with a large truck in a head-on co5fl t2p(klbs45in d+ww p)* rollision. Which of the following statements concerning the magnitlfb2*pd 4wki o5)p+(5nr lswtude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped fro*qk nmdx-i9/(qa9q fem the same height, and rebound off the floor. The red ball rebounds t kdiq/f9 xq em(-*a9qno a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movih;.coq5z.):dw-q:dtjt q nyjpc xj1+ ng 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.:5qhqt ;1 oncj-qj:yp+d)ctxd .w z j moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce en py z*r z n.5zqk:o ng1bdx kx200g+-cy*9lkoff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides heycpc0o 4 ahz1qyn2 /x0ad-on with a 6.0-kg o41h0yya xnc2pc0o qz/bject moving 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-on an 80-kg hal7upu f8:-i *un. )dpxx uzlpa8fback runu) ufu:-i pu ld px8n.xzp7*a8ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then5cq ja9ae 9da4 which of the following statements is true about kicd qj94aa 59eanetic energy?

  When is kinetic energy cos/ 0jmxfge n 22c8x:wlnserved?

  In a game of pool, the whx* f v+be9us+qite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originu+ q*fx+9e vsbally. The type of collision is

  When a light beach ball rolling with a /w2gsbh 513cply;o su speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, ap bw5 l1 ;scsou/23ghypproximately,

  A golf ball traveling 3.0 m/s to the right collides *35-il qllpw9wki f1w(,lzrkin a head-on collision with alq9k3lrzw ,l*p- iwi1fk w(5l stationary 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 elastinilg)k i;4 qq*cally with an identical ball at rest. What is the speed of the initially stopped ball aftl; qk iiqn*g4)er the collision?

  A very heavy object moving with speed v collides head-on with a very light 67) kgtp0g;h2 q kfyxcobject 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 after the cocg07ky; q k2hptfgx)6llision?

  A very light object moving with speed v collides head-on wio5*gl ir6 oyocj1kh/ ,dd)an0th a very heavy object at rest, in a frictionless envi50ild,ao o cj 61dg )kr/h*yonronment. The collision 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 with a yellow ball n91pm2 zi px)tc4h; wfof equal mass moving with a9zw;2m1i 4tf hc)ppxn velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with ve v.3fa-m1vavr yk2s.tlocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The .t2frv m s1vva.y -a3kheavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is co r: jf-d)ul775n pe)xdc;n osynserved, then which of the following statements is true about kidlfsxn 7u7 5jcp)y)-;dn:ore netic energy?

  Two objects collide and stick tog3e8/ n6*t dar2 ocuf5hdfe6c cether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It h -xtfr,:np*3o .ncvpq i)dd(collides in a perfectly inelastic collision with o(i* vft q)3r.,dnh-p xc:pnda
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 stick of3 ug66b 6gkbl0lgq;s. Which object experiences the larger magnitud6b6bg3f0g uqkgl;ol 6 e of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflfc5z b m5wg 0m:c92.4qczqlgnected 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 statements nwt/2j( ip+h6z 5wavdf7 rgv/ p9z+ulis falsp /+/(vjpz r6+dwln 79a5h g2tiw fuvze?

  Which of the following is a false statement?1.sw*y,v 2qz4 5atcine zbq 7b

  Tightrope walkers walk with a long flexible rod i mc g;-x8hv:o k ;wiapzce6:t4n order to

  A plane, flying horizontally, releases a bomb, which exploq ikj 37(eppy )9ft as.r8*zfudes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explos7( *j8rtpiz9k) uy 3.pqsaeff ion

  Two cars collide head-on on a level friction-free road.qb48ymc64b r x xoq.-h The collision was completely inelastic and both cars quickly came to rest durin684hobc q.b-xx mqry4 g the collision. What is true about the velocity of this system's center of mass?

State Newton's second law f;cyif )noy,r: or a system of particles.

  What is the momentum of a 2000-kg truck travelixm 8 /xo7xz*n(,8pfwxpfcd* a ng at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Whatr59 1*qgkeur(ko qn)prp6v85 briy z8 is the magnitude of its momentumze58rqr*prpr 9 g 5kyvnbiu8k6 )( o1q?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its x5hvif)7c)l jmomentum when it strikecl)ij 7xh)f5 vs the ground is

  Two identical 1500-kg cars are moving perpendicular to /amd mfs4ziy*a -o32ceach 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 fm mzisaa/ *-43ydco2total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes v mh idwt-tfhc5h97wv*,v. i)a wall and rebounds -fhcvmw7w9d* vih)t tv,h.5 iat 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed o-secty15r(z 2tnr *58aaf who f 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the ha*52rnf8z 1oets-at5(cyr w change in momentum of the ball?

  A 50-kg pitching machine (excluding tq+5 86rb7.7zcwvetjgsa drm8he baseball) is placed on a frozen pond. The machine fires a 0.40-kg bas6d5jg.8 w 7 arm s7vqbtcerz8+eball 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-walking outside the space hq9o j507qs3l/kvz ,vp87t lhl 6bqjkcapsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg s6 k7t 7sohql/08pjlzhvl5 q ,bk q3vj9pace 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 momentum3(a+nvrvczo5l d/6: ank3a nk 5.0 kgm/s 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'szadrk ka3 n+: ca3(vno6 n/lv5 momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass),/j -8ha.aelfm8: z ofh who is standing still, with open arms.l ofaha. z8eh:8fj-m/ 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 aw jljv1 ;r,wy- level, straight road at a speed of 6.0 m/s. It collides directly- lvwjwj;1y, r with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelinl,vwpo ir yx*thf-*))g at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they i )wxt-fyo v,l)hp**rstick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to co6farfuxw5 ,o3.*l anb ast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, iniafurw * 6l3,on bxf.5atially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal t,s 7iguwh mmqe4 jj,9(rack with a speed of 10 m/s. A 70-kg stunt man drops straight down a w(m,4 ih7s,jjugeq9mdistance 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 lofp m(3 8.shekdg at the rate of 0.80 m/s (with respect to the log). With what speed does the log move,fdk8p.emh( s3 with respect to the shore?

  A 4.0-N force acts fvsaqa327q .ag zzy.3y or 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What im3y.yvq3saz2 .zqa a7gpulse 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. What is the ob4rmh3a m* m(cz)vi08br v+ bspject's change of veloci bri+ 4vpv0 h(m mm*3zcab)rs8ty?

  A 2000-kg car, traveling to the right at 30 m/s, cgmhp zkc6e(9,ru- ux0 ollides with a brick wall and comes to rest in 0.20 s. What is the average force the cazg,uu(0 mp x96hcker- r exerts on the wall?

  A 2.0-kg softball is y;7a d2 4aph 3a-fzhrfjjh* b6pitched 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 bat exert3 jf;7arhf -a6 h* pja4yzd2bhed?

  A 0.10-kg ball is dropped onto a table top. The speeds of 29 0 65rzu(*y5ti;ymudria mnwsp bm)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 average force exerted on the ball by th(5p m byiw 9zir*5;mnur)td6su2yam 0 e table top?

  A machine gun, of mass 35.0 kg, fires 50.0 -6)xu 8zpjzdgy(.ba w-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds p)-x8(.ajb gpzd6 u zywer minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the3a;fkgve-8 erp1fp 6zx0g-/j l rdsxr,zes 7, door down. This requires a force of 1000 N. If the hose delivers 40 kg pf 8xzjrexp z;,egp1,lfg0s d7a--/e rr3 6svk er second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainp5 pyw*3uhlx 4oipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. 4xlo hp*yw53 uAssuming 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/s after4uevzg5xr1o:o: 3z.simt1 vs 3.0 s, when fired straight up. What average thrust force does the rocket ez i4 :v3.emo5 svrtuxs :o1gz1ngine exert?

  Two astronauts, of masses 60 kg and 80 9r hj42wp fh7qkg, are initially at rest in outer space. hw9 pr qf72h4j They push each other apart. What 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. 3 ygx*ds7 go2cIt 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 kins 3dgoy2x7gc* etic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x m yr.yk o ;nzsj7q567zxqgw9;direction makes a head-on elastic collision with a 0.15 kg object initially at rest. Wkgnr6zy5q smoxy;q 9w. 7jz7;hat 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 o *wvyxa,u.;rtpck277 r n1qla 1.00-kg block at rest. The bullet emerges (the bull7rpn*v7l1aw ,kcoqxt.2yr ; uet does not 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 head-on by an alpha-po 0gl6jz7 dhse2s0o ne09+e-r3 ktga barticle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-partiee 2 zg3r6 lt on9gbs0a -jhde+o70k0scle 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 stationary zxx: 5)flg n*ynp ,y*jball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the colli, *y5fyzgx pn*)n xj:lsion?

A ball of mass 400 g moving toward the east2s0d*uc7 nlthvi ) 4v2wvs ra4 with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision isu sav2clrv7itn )04 v4h*wsd2 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 3.0 kg ljm0 , )*qii8udj,vqgmass at rest. If the collision is perfectly inelas8 ,i,)jig mq0qjl*dvu tic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to to2lxcb-fy.h :vyt/ )ehe east at a speed 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 tb.x :t /y2cv)lfe h-yohis collision?

  A car of mass m, traveling wii*di-6ed*zq g s d4 m+v. t/oel+anbd;th a velocity v, strikes a parked station wagon, who's mass is 2m. The bum;de.av6biq+ds -el / d4t*n+ zdiog *mpers lock together 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 it2s- mgzfhe6 8r21vxrk self in a 2.4-kg block of wood a rest dirf18vkre- z2rsg2m xh6ectly above it. As a 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 travel2lnmmt)w*hsp ,bfd 75ing at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick tosh*b7 dn,p )2tfm5wlmgether after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling ntgm -k 4cwk;9(3e*qq6zti ak at 90.0 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.) What is the direction of motion of the cars tcz qqn*9ea -ikmg;(34kk6wtafter collision?

  Two objects move on a level frictionless surface. Objzspfu3a10 x1jg b/y9g c2v br1ect A moves east with a momentum oc21xf p v r1yj9ga/g 13zubb0sf 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 collision?

  A small bomb, of mass 10 kg, is movingx 2svi fy65r v/wos15g 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 fragmg5wv6sfvy r x2i/5o1sent 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. Wherd,* h gdp)ompz/ u*zc )j6/plj8*venc e is the center of mass on thep*djp))n8cjhl vup *g /cz e/zd*6m,o x-axis?

  The center of mass of a two-particle system is at the origin. Oakd yn)jpg+ -(ne particle is located at (p jdyng k)-(+a3.0 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 x*h5cq3aj5ofkq.gd8m 0 .,vyhhv - xb at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determiqjc8xha ,q*3kg-do mv55.yhh v0.fbxne the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatzt3eujk v.moimg 7;33dm 8 rhb0 a10oped at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the cen7vm kom gutj0za33r8;dp3 .eo10 bhimter of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), bc hv2 ka9ng n/of/em1);eux: and a 1.0-kg mass is positioned at (12, 0). What are the xh)bv2/1 ocfa gn9ku/ee; n:mcoordinates 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 the position of the CM of a whole leg obs3/atnp4k h+ -aqc2including the foot when the leg is stretched straight ksno4a -3/pc+b h q2atout. Assume the person is 1.60 m tall.