What is the SI unit of mameg ji7h-)a4 dkgj3:omentum?

  When a cannon fires a cannonc(5 b(rsnf9cri) e y;tball, the cannon will recoil backward because the

  A freight car moves along a frictionless level o;ef34 xjnoi 6railroad 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 velocity onx oio;43ef6jf the car?

  A child falls sideways off a sled while scc80,x ha,+j zxhdtq9ledding on frictionless ice. What happens to the velocity oj x0+cqtd z,8cxa,9hh f the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown w1qxx z ehy6f , l96hd+4vm0vytith equal speed against a 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 chang,fy1hlmv 6xz0+d 9eh6qyv tx4e?

  A sailboat of mass m is moving with a momentum p. How would youd(o mt.w 4w9 oefp+npzl(7+kz represent its ke 9+m4tn7ool w zpfkw(z +(.dpinetic energy in terms of these two quantities?

  If you pitch a basebal v* iv slj93jy04c fcrl8n03zsl with twice the kinetic energy you gave it in the previous pitch, the magn cl 83svs0z0lfn v*rjj4c3y 9iitude of its momentum is

State Newton's second law in9saeoo91e 0vxyy7:u v terms of momentum.

State the law of conservation ofr / je3hcd6 aw;5xjr/b momentum.

  The area under the curve on a Force versus time (F vs. t) graph rwgy 81wqv jtv.zbg,he(,3g un*f0 n1eepresents

  Which of the following is 31 *9j bo /pe6au+cgdkn n(jspz(srm1 an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of*sbdqx n70 s4l the following statements concerning the magnitude of the average colln bq04xs*dsl 7ision force is correct?

  Two equal mass balls (one red and the other bl xrzum8 h+p8nhf mvj98 )6i,qyue) are dropped from the same height, and rebxpq98jhz,h+m8 mrnyv f6u8 i)ound off the floor. 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 moving east at a speed of 4 m/s, collides with a stat.9f4ek5 bl upjionary 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 greater ma jfup9lb4. ek5gnitude impulse during the collision?

  Two objects collide and bounce off each other. L.c 3 c3zcsacf:;/ +rhtf)sturshvb 9 -inear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.06m2j)(qkussws nwe su3y;,1jh2k t f5-kg object moving to the left at 2.jkf5s uhysjs1tq ,2su m2w6k3;) n(we0 m/s. Which statement is correct?

  A 100-kg football linebacker m-+ +f 5tfdongxoving at 2.0 m/s tackles head-on an 80-kg halfback running- ogfd+ nxtf+5
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum 6:ekfojmg x3ip50 tn 3is conserved, then which of the following statements is true a6e 0np3kj3 :x5ftgimo bout kinetic energy?

  When is kinetic energy conse+ m9xf/9 ykrtnjdws /;:lgoa6zno;8a rved?

  In a game of pool, the white cue ball hits the 953ylzyt,jt5ybdv2 (fxo 8of#5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type o259t 8b(zdof,5 jflvotxyyy3f collision is

  When a light beach ball rolling with a speed of 6.38suv 1h6 ttnuys ,a ouy+)oo(0 m/s collides with a heavy exercise ball at rest, the beach ball's speed aft yt 3,y+sa81 houonus6ut)ov(er the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on coxwn;)an2 o9ny ; 3.gwrxwkj,pllision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the .2a9 px3k;r;),oy nwnn wxwj gspeed of the golf ball immediately after the collision is

  A rubber ball with a speed of bzn e)w 0-srbtt:u4m(3 c(mnz5.0 m/s collides head-on elastically with an identz c) 3mu:0w(ntb-t sbn(mr 4zeical ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with0.l r7qrg4j 2hxbbc1y speed v collides head-on with a very light object70jchrl 1bqb2x.g 4 yr 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 collision?

  A very light object moving with speed v collides head-on w hoft 4 yl*ud,v ze:p,d1zb(;qith a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the h1z h :d;eyzb(4,lt,vp*q f uodeavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides hj6z pcq1. yxo(7+g bfhead-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the g. c1qhjfby 6p(+zxo7 yellow ball after the collision?

  A very heavy object movi dt.+zpdbk,ix.* w7b yng with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows dow.t. b7xkbywz*+ id pd,n. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which ofh vs-zlhc*z 4;2i8jck the following statements is true about kinv 4z-hc zji;hs2*k8lcetic energy?

  Two objects collide and stick together. Ki/;vas0kar od co.6 nu63 f(qqinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides ing4kke9i x 0b-gc5 3hl5joo xnk. 8b,zz a perfectly inelastic cok8g,3ko-5o e 9xli gjzbcz0hxk5b. 4 nllision 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 l:qklm 4mspq 4r,rj( l9:,p9gintqr 0iarge object and sticks. Which object experiences the large,p, 0j9: srl4 imkpmrq4:9r(i nlgqq tr magnitude of momentum change?

  In a game of pool, the white cue ball hits the #lhfcr9q2epn5p 5id5 2 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 odzmx2 q y ar/b;o46ar9f the following statements is false?ad2x;6aoz bqr4ym r/9

  Which of the following is a false statu27m:fog57h+mv(h q1 vadrh uement?

  Tightrope walkers walk withbt85ka6 hf kjvyupn/i2 orf *h-fc q*:n 6./pm a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes befo q7ve6 tjm001 pl.vrfore hitting the ground. Neglecting air resistance, the center of mass of thel7r q0.j voe1v6ft0mp bomb fragments, just after the explosion

  Two cars collide head-on on a l zgu waoc z/i9eh j48a:7:kmkcdf q36+evel friction-free road. The collision was completely inelastic and both cars quickly came to rest dumw uk4 cz h8gjk:/3:afc o7z+9edi a6qring the collision. What is true about the velocity of this system's center of mass?

State Newton's secontgu v ;9d-2q o+k(xgdgd law for a system of particles.

  What is the momentum of a 2000-kg truck traveling at yx-9o;wwv(uvjw ftn fo k..)(35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnid; sck 5*/pe.:ewotqxtude of its momen:oe d*/wq;5 ktx .epsctum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mom*y my;j) q;rr fzm4z7y9 yvha9entum when it strikes the9f jy) ;9 y*mayr4zmz;qrhy7v ground is

  Two identical 1500-kg cars ar5-bwy h- p+z,/v3vmj(yg lhvae 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 toy-vygb mp3av, /-jh+vzl w h5(tal momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at b)1ef 8x2 ifx uks)3;l.ohdoj30 m/s, strikes a wall and rebounds at 24 m/s. What is the change ifo83 2 x)oe f ;i1lhbs.udjxk)n the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a ra(n.ldjrhe+8:(j buc ccket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the beuj+d(rb.(l8 c:cn j hall?

  A 50-kg pitching machine (excluding the baseball) is placedpmsfg94s8fpmktv/7 8+ld yff1bmz*- on a frozen pond. The machine fires a 0.40p8b+v*f gmsymlzt8mf4f/17 9k fds- p-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-walkdazeo5gt t4.: vw8v9da(a-kping 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. At what speed does the astronaut move tzav(gv e :a5k9o-4t.wdta8p d oward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large objt jt2;z) tj lac76/wyemg bm-;ect at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the la7eayj ttmz l26 jb)/c; wgm;t-rge object's momentum change?

  You (50-kg mass) skate on ./nm(/pa-bw ry4njzh ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with / r zwy4nmj/p-b.n h(awhat speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straigs (k1x5 9f ;yhsxgqlwgo;mp.0ht 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 thesy(01hm k.9 5oxq;g xgplwsf ; collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a st ;v(midcf ..ql./g jdoopped car that has a mass of 1500 kg ad jifcl.ov(..md q /g;nd they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to crt b/jbce,evw g)- hz w76e.t4hmi*j31h wn-roast 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 zer3-c6. w*vt)twh1e, w b4 h7jim-rnejb/h grest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rollbh /4y))uyfrx s with negligible friction on a horizontal track with a speed of 10 m/srx)4 uyf )/ybh. 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 t*as /,rbhm2m bo the lorb amh ,*ms2/bg). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddm b)zz*s2w5 g8x(n/t5wimj aienly increases to 15 N and acts foinb wmw/j2 *(5xg 5isz8z tam)r one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0::fqvq8kp)u/ 7;iaf0gk;etd r:sz n o s on a 6.0-kg object. What is the object's change of udn: ;svkt fz iqa:7pr koef;q: /0g)8velocity?

  A 2000-kg car, traveling to the right vc7gd2rl ir0:cip9e , at 30 m/s, collides with a brick wall and comes tpedi 7rl0r: g,9ic vc2o rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You uhkn3 066+ a8ozazgo ohit the ball back along the same path, and at the same speed. If the bat was in contacthzkz3+u a6oooa0 8gn6 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 ofjds7d une6 1mcrz++ 84abd5ta the ball right before and righ5n6j r4dc+u+ast7 1dmebz 8 adt 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 the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bs zi6ea x2-9ko9z7bfg ullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on thebs ek992-o6xag f ziz7 machine gun mount?

  A fire hose is turned on the door of a burning building in order to khc wfpg- ,-m1z j*sux0vl;o1rnock the door down. This requires a force of 1000 N. If the hose deliversvo*cfxjprg 1,1zl m sh-u-w;0 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 tw;v/ )gxl8cz ehe rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn'tgcx) ve/lzw 8; 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 after 3.0 s, wx e9 j( 2ck m/f.xljty1p,-73 yil 4ck0otocswhen fired straight up. What average thrust force does the rocket engine exert lx(x.,4t ip 3mjy/o ojtk7wy 1c-0s2kcefc9l?

  Two astronauts, of maju5t3 zdiuuv 765wo e/sses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut oudi535 w7 uju /tzv6ehas moved 12 m?

  A 3.0-kg object moves to tdm;u5 2v,pg kwewpi e/6v a4w+he right with a speed 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 energy after the collision? e,m+/246 e5i wwkp;gpuwdav v

  A 0.10-kg object with a veloc0 bw) ) d(-c.tkto gd ow 6:6/pbn+rgkyuuvoc1ity of 0.20 m/s in the +x direction makes a head-on elastic collision wg6ndo gyk0udp16rtb))+ocbwtk wo :v c u(./- ith 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 b5k:4elz a).ewd k6ip: mse5lrest. The bullet emerges (the bullet does k wm6ei)ll:esdpz54ea.k 5b: 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 stf+9wj0qfhvs(/cy ae .-t ulp1t; qt2pruck head-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 will the alpha-particle have after the collision? (Assume the neutr+e h9tuasq.c/y tf1t (;-wv2pl j pf0qon's mass equals the proton's mass.)

  A 50-gram ball movinbnaaia ;jl)o ic9rnvn8 2+x) (g +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is th)+io)9av82nnjl(x crain ;ba e speed of each ball immediately after the collision?

A ball of mass 400 g moving toward q :q1r,4gqkbfqj) ,glthe east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfejqbq41 g:q,)qg l,rfk ctly 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 spel0 +mxq, ,qossed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the q+,,omxql0 ss collision?

  A 2.0-kg mass moving to the east at a speed of1yoi/ us. l 4hznbg g49o3fjgrh-- 3go 4.0 m/s collides head-on in a perfectly inelastic c49bsr31uj3lo4h f -yg/nooggz g i-h.ollision 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, str rjr +4 bp7/td:;tor)byxkhi e;(m -mqikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-() prtm-7;doixb :/jre;+kryb qhmt4on 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 direo 6p5 xud3jsazf 9sji(z+p7yf0hu 9y/ ction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combinatuyh799zps 5f z (s6ij+po0jaf3yud/x ion 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 coio c hp nq9d76(1xl:dex i72x8x 6rjmollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision o97ximxxn66ij1 e7l8dd( r p hq:2xco. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90 m+0jwlhg q)x*.as: 0a ilhe0m.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two car+gal0hm.lj :ms )wqh* ai00x es 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 leveld2*2ca6 /j l9 1e 6qsxfl oybdjb-h;us frictionless surface. Object A moves east with a momentumadq9s b f j ubj6 6cl2ylo;x2/hds1e*- 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 collision?

  A small bomb, of mass 10 kg, is moving toward the Nor0+j gpt/qjb8aztxby(01 ttk/h / nug;th with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg 0;yg ag0tq(zth1b/ px8tn+jk //bujt fragment moving 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 jp (hi0r9+7qyn 6sf wjthe origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the xpj7n(iq0fj9 +rw6 syh -axis?

  The center of mass of a two-particle system y42n+ rm40 q1lzt nhgxis at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is2mngtyh1l+ 4r0nqz4 x the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0a4l+0-xi prghei- :dp2km; gz, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1z keg-pimdl +gh;p 2ax0 4:r-i.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3 6*m;lbeohkvuv.ob 1*5vw fi ..0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mask; bhvi61vbw 5*eomuf*..o l vs of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned vlvx59i 6npg1tcmo bqjv) 989ah2pe)at (12, 0). What are the coordinates of a 4.0-kg mass which wivmbov9 5a1pc6)2ltjvq i xh pne989g )ll 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 whobuma rq+r( j89 xkqi.j t79kt.le leg including the foot when the leg is stre9kmijt bx kt.rqq( j+8ur a97.tched straight out. Assume the person is 1.60 m tall.