What is the SI unit of momenp/tt 64efjzx uq 0d.x,tum?

  When a cannon fires a cannonball, the cannonn9j1tf k z*1hp will recoil backward because the

  A freight car moves along a frictionless level railroad track at constan7t6zch2 :nmna6 t)vxe t speed. The car is open on top. A large load of coal vn76tzn)xa tmc : eh26is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while::6l e1 t2q1dan v7mf/cw ioyv sledding on frictionless ice. What happens to the velocity of t1yl t6m7qficne : a/w2d:1ov vhe sled?

  A rubber ball and a lump of putty hck74*p3ga l* p 5smj.9oeqghr9z u7rhave equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putck7e hpagjm3q 4o 9*hpzslu *9 75g.rrty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass mxnuy8dmc)teh u :;w3 +1txj9r is moving with a momentum p. How would you represent its kinetic energy i wt1xd3rty 9 hu:n;ec)x+ u8mjn terms of these two quantities?

  If you pitch a baseball with twice tazxe nl;kct ) g-gn 1/gjv*jtd;0wjde/*5*k xhe kinetic energy you gave it in the previous ew/ *15xnx *n0ljz;j*)tatjvd-;ekgggck / d pitch, the magnitude of its momentum is

State Newton's second law ink2tqt52 mgki pne 030w terms of momentum.

State the law of conservation qrwd 0 8tzkv 0npv;5e 68gri/af )4nybof momentum.

  The area under the curve on a Force versus ux; )gndhv -;t+1pqb btime (F vs. t) graph represents

  Which of the following /(,cy)w 4 x15simzdpjs v.m lyis an accurate statement?

  A small car meshes with a large trbps4 ov/2s. nouck in a head-on collision. Which of the following statements concerning the magnitude of t/ p2ss onobv.4he average collision force is correct?

  Two equal mass balls (one red and :gycith,::aieo)+z : y/pd : gpu0g4st7ejhh the other blue) are dropped from the same height, and rebound off the floor. The red ball reb:)y:y j gitpgg sphot0zeh4,u d:/i+eac h7: :ounds 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 ofxbhctot43k 4( 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounc43 xbto4cht(kes back to the west, 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. Linearil5v3(gfc7bgl , v6s p momentum

  A 3.0-kg object moves to the right at 4.0 m/s;ia m 1+alv9er. It collides head-on with a 6.0-kg object moving to the v em19;a rial+left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles e0oddpet;60-mmos fellx l6/s147r qhead-on an 80-kg halfback runningdqes7leoxtmp6 0 de1f -6;mor0l4 s/l
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momenma dkxu 5ra+-3.hk6cqtum is conserved, then which of the following stateme+-6m3d chxar a. q5kuknts is true about kinetic energy?

  When is kinetic energy6vhar x x+of,)yc:oc4 bshl7( conserved?

  In a game of pool, the white cue (y-co)mjk,dtn p ih. 5ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had m, 5).hintc jo-dkp y(originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s c,s ur7m bxml* h/i63bkollides with a heavy exercise ball at rest, the beach ball's speeds,rm*lbm u7 xb/k6h3 i after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides xyvd (7 dch0v vzn dv10.9eprkc 1q+k-in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision k1+pd-q d0dnv(ke.9cv0v z 1xh7r ycv is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.-.1kbi1 k 1hflx 6hgitt+j)xbl+iwqaxv 3)h ,0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the tx+qk-,)1. 1x+x wl 3b)fhitiv6gba1i l hkjhinitially stopped ball after the collision?

  A very heavy object moving with speed o ui+iej5fy9xvf1 df i3;oz3. v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the lighuzvi1 foi3deo; 5+xyi9.3ffj t object after the collision?

  A very light object moving with speed v colli:-fz nkx0j 1dudes head-on with a very heavy object at rest, in a frictionless environment. Th n xz-d1f:0ukje collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +c4hvikfw.dd)rzyb ( c151q -u3.0 m/s collides head-on with a yellow ball of equal mass moving with a v c.-qhucr i145fvdywb1d)( zk elocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocf1v) j)h:wssn)ap:v pity 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 down. :)fpss pahvw) 1 jn:v) What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then whi nh,cy9ps te;)ch of the following statements is true about kinetic energ)n,;t se 9cyphy?

  Two objects collide and stick together. Kinetic eneb2+ pachrla2) rgy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a -;kmbo1gsd)j perfectly inelastic collision wbk-gd ;)os1mjith 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 object and sticks.9cmy t/ot;bwkw4;j c ; Which object experiences the larger magnitude of9 wtc4km ;w;byc/to ;j momentum change?

  In a game of pool, the white cue ba4bq8pd+6harkp * q6+y +lpomqll hits 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 foldg si x v q*w9wp-vz:;frh5:i)e+ds3ulowing statements is false? s-e3s xgqiz5ir+p;9d:: wdhwvfv)u *

  Which of the following is a false statemen-r+ye4ros j:ft?

  Tightrope walkers walk with a long flexible rod f*spt4 u5xs:b 9iwm6 ein order to

  A plane, flying horizontally, releases a bomb, which explodes 8 uf8(lc:hcsl-8tw v sbefore hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explof8 : w-l8c(tluv8csshsion

  Two cars collide head-on on awiid/ :y,dq w0qmdq8jk3t 0(n level friction-free road. The collision was completely inelastic and both cars quickly came to rest q: mj8y( tw 0i3/wdq,nq0kdi dduring the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a sgb j 1 e0qqpui2uj(w/jj2of 5,ystem of particles.

  What is the momentum of a 20f2h bogk.a92n 00-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnk v tjs/a2x9.yitude of its momentv jsak.x /29ytum?

  A ball of mass 0.10 kg is dwrghjv ,l xzw6le+94.ropped from a height of 12 m. Its momentum when it strikes thwr9lv.wj,hx 4l z+ e6ge ground is

  Two identical 1500-k3 jims bvz)s5pkt 3,z8g cars are moving perpendicular to each other. One moves with a speed of 8) p k3,mszi3t5zb svj25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.102cyq )l cmm;9v(: dzut kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whmqv: zclmu;dc t y)92(at is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initia.w 8irxpuhc- 6lly moving at a speed of 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 changeuc xpw.i6- rh8 in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen bxzfx 1 2h3fqkbb*noam(l.+ vb1(*xjpond. The machine 1xmbl1kn* +x*2.(fbf qz(bhvob3a xjfires 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 negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and psw9 gb7x d 4-aj6wle 3k(k/jxis stationary when the tether line breaks. As a m/jks3 w49x wpagb6edlj k7(x-eans 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 krq1v a0 9)znjqgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 1j q0zvq a9)rnkgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate0x( alzyz tf5+f;b/ul 2oxzaa2c r:b1r 9brg( on 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 what speed doaubf f yr b9oxaxg(;a1rz5:2(lb0zz/c2+l tr you both move off together?

  A car of mass 1000 kg moves to the rigmsse24w e.6ou1 muf(ljva: 8 tht along a level, straight road at a speed of 6.0 m/sej su(4o.m6 8 1 tavemwlfus2:. 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 rear of a stopped 3:1 hd64qww(gxwunam car that has a mass of 1500 kg and they stick toget1ux:wg3dqamwnh ( 64 wher. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast wqhup x-0-fa*ud3jzwb .r ;l2along a level track at a sp0j;-ww3 .pbh uuz ldax*-rqf 2eed 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 coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a hc 9qkjptwl 4)2orizontal track with a speed of 10 m/s.p94jc ) k2wlqt 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/sjkkf1*bhm0o1 u 3v( ko (with respect to the log). With what speed does the log move, with respect to the shoremkv3uk(kf h*bo0 jo11?

  A 4.0-N force acts for 3.0 s on an object. The fory: a+3y0wufe/ zr0wzh ce suddenly increases to 15 N and acts for one more second. What impulse was impa:u+hyzryzf30w w/0 ae rted 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 the9y tiey:r,g msz(doz f6(xginu75c+2 object's f7i:(y ntd +zz9io gxc(2s 5ur6g,eymchange of velocity?

  A 2000-kg car, traveling 4t5 mx y9s5+tylrr5 6zage(uqto the 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 e + l6 uat5gyty(4rz9 qxsm55rexerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Yog7*e/ q*-xd i bydfu8yjwlf btry9/+5u 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 magnitudbyl -*yt/7*qujwrbixfd/f+ 95dy 8gee of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right b5up6y2rdh p o:yo 1y ;05dwcfnefore and right after hitting the table top c6 onwy:0pd5y po5y 2h1 udrf;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 bullets, with a fcrht9i lbh/t ;68cogi/d0(m muzzle velocity of 750 m/s, at the rate of 300 rounds per mi;bm80ot9/htr ihd(if/lc6cg nute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on thee7b/zr9e qj8e wg--gl door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delwl zg 9/e8-ejb7r-egqivers 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 horif. lw5 t(wrd8qzontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force 5drww.( qlt8f does it exert on the ground?

  A toy rocket, of mass 0.12 kg, acfnn:z7fo ; t(fzluk ,7hieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force do7z7 (zn;,toufff n:lk es the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at ret5renvtqoiox 4d*af ( : l*k,*st in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 12 m?*f, t4e oao*ik: t(nrlxqv5d*

  A 3.0-kg object moves to5dmd w-ppvjw7*6f-s u the 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 kine* p- fu5pdw7jv-w6sd mtic energy after the collision?

  A 0.10-kg object with a velh 9l,83 ;iv c6hbypcypocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. Whi6; 8lcvy9c, h3pbyp 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 a 1.00-k q)s. ,gguiz 6 mfafyyc 3,)p;wqez--bg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its o ypz3 qm- fbqeaz-; uwc.y,)6)g,gsi friginal speed. What is the velocity of the block right after the collision?

  A proton, of mass m, atj;i zd8s/ ,xis rest, is struck 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 neutron's mass equals the proton's mzs/,;8sx dij iass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball 10+:x ux wwfjgri:rw: of mass 100 g. The collision is elastic. What is the speed of :1u:rwf :gixx r0wjw+ each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.7awv4hf y3p9s -0 m/s collides head-on with a 200 g balws3-ya4 p 9fhvl sitting at rest. The collision is 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 he30 e2j4lebgifqzcsrbvr 84 - yvl -s;6ad-on with a 3.0 kg mass at rest. gq0 rb3 46 yl2esv szb4jc;-vr 8-ifelIf the collision 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 c4azqq;gdr uk2(3o 6 cyws+2zwollides head-on in a perfectly inelar+zwsw2oac dyq( 3g4kz 26q;ustic 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 a parked station wagon,us5pjksy5bt9 a/ol4 * who's mass is 2m. The bumpers lock together in this head-on inelastic collision. p*j5/ ab9so5u 4kltsy 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-k2zf:x , 6k,19gmq sgqku pm1vimwli/4q.8gjo g block of wood a rest directly abovevswk.i1/goqmm g:8ux 6,q9, q1lp2gizf4 jmk 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 traveling at 90.0 km/h east collides with klh sjw+ 0rdw8 aa2qx i2m --+4lhbwm5: kvb-ma 3000-kg car traveling at llb5kh a q x- -+ w0+irmd-mbakshm4:28j ww2v60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling am5ek-kh1 b, g ;fhplb/t 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two ckf/e bk1 m-pg hb5l,;hars 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 surface. Object A moves east with ac zdpvnn);x 05 momentum of)nn z;cxvpd 50 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 North with a veloc 426h 9h fvjvenrmt7*mity 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 mov7 tv 9*r62n feh4mmhjving 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.jk ) 2/zknn t4y+7uoaa,qc3;cytn* xo0 m. Where is the center of mk zuoy2k otjq c/,cn ytn3)an+7a ;*x4ass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is,pzh e6d-f9 c/w gzpte31rw) e located at (3.0 m, f g)p-ecrdpw6h etw,91z3e /z0) 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 at wnes 1)a10 yim(2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinie01w)m1 say nates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located +:twg, d0qr)wj:jzoa v7w* pzat (0, 0), (1.0 m, 1.0 m), and (rz,:0)jq:gow tdjw 7z*p +wav2.0 m, -2.0 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 posit6;snu c6 ed+,2b.xac:tyw znqhax.mx2: :kih ioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mashqy bck,a.cedu2:.:t z2mxns+i 6hn6;:waxx s 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 including qp4kgys vz/1.ljem)71 m7d fvthe foot when the leg is stretched straight out. Assume the pe.gz ls47qm ydvp1)j 7m/ f1vekrson is 1.60 m tall.