What is the SI unit of kcs+alh,k7lm - n+8igmomentum?

  When a cannon fires a cannonball, the cannon will recoil backward bewri4rf ro-u 14i- xjx(cause the

  A freight car moves alonw o8 bse::/kohf(ledcs2+- v qg a frictionless level railroad track at constant speed. The car is open on top. A large load of 2 le bo:eq-cdsk(f8+vh/ w :oscoal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. Wha9,sstpo4 e2 p:t-h gmxt happens to tt4s9xpghp,t m:2so- ehe velocity of the sled?

  A rubber ball and a lump oa5xupwu 2h1t ye12ok3f putty have 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 putty sticks to the wall. Whic3u1xho we tyu12a52kph objects experiences the greater momentum change?

  A sailboat of mass m is moving with a mo 7hk(hnwu4; j 3e3syzumentum p. How would you represent its ksjk3 hu 4y;wz(h7n3 ueinetic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previou+50)qf4dcumbj jb703mipx mxs pitch, the magnitude +jqi0 3x7j 0m5mb)dfcum bpx4of its momentum is

State Newton's second law ic-i/-l7 k u9;2fkbss1 xooobmn terms of momentum.

State the law of conservation of moment +mrs57v 9obd( f0yp (azrrqp/um.

  The area under the curve on a Force versus time (F)tv93hq nnajd: t cygu1(h+)6 effy7 o vs. t) graph represents

  Which of the following is an accurate sr6 j-3m7(oozp3wo(o (enmnj0zaya1sn ,xg + vtatement?

  A small car meshes wita6 wj4(.lix 6pinjc /gh a large truck in a head-on collision. Which of the following statements concerning the magnitude of the averlaj.wpicg6 nxi/j (46age collision force is correct?

  Two equal mass balls (one red and45;qt;4k j t ixqtqe.u 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 mjk tit.;;uq 4qt5qex 4agnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a sisfhwho (.,7 xijf;4ocjo3k. tationary bowling ball. The Ping-Pong ball bo. hf3cio h,js7iof 4w.;x(kj ounces 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 bouncg ymb)5o0 .mbze off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It colliy+4ec+jt6yir nakr-e67g s 8edes head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which st6 yrje8k en-yca4trei 7g6+s+atement is correct?

  A 100-kg football linebacker moving at 2.0 m/s ti v*a:de2g rya8g i( y82vca7dackles head-on an 80-kg halfback runninyvi2i ay8d2dav a cr:7g*eg8(g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the m*tjzz);5 qnyn8deu 6 vomentum is conserved, then which of the following sjdz n8)y ;vqz65ne *tutatements is true about kinetic energy?

  When is kinetic energy conserved y*f/;w;zq1frjh m;dd?

  In a game of pool, the white cue b 5 lteew,)cnx*all hits the #5 ball and stops, while the #5 ball moves away wit ,*n5c exlte)wh the same 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 cl wxcqwoicva1 5imn9p+z :7:hv2-) mmollides with a heavy exercise ball at rest, the bea palc)9c-7:wi zomnq2i x 1vmwh+v5m:ch ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collz x: y.gp5:pola/sa l;ision with a stati sxl/gpp.a5 :;loaz:y onary 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-6cvt mcaclx1p5,z(ox. r *or head-on elastically with an identical ball at rest. What is the speed of the inczcx 1t.a-m v*r5ol,rpx6 oc (itially stopped ball after the collision?

  A very heavy object moving with spfaw)xz9 4pqzz1mig wrhxx 8dacp.e9s99-( p1eed 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 owp a99 .q8 m(fp4dg9crw 9i1xexs-1p x)azhzzf the light object after the collision?

  A very light object moving with speed v collides head-on with a veze -be: )1tvexsndr1o.9 s x;fry heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy ;s9rn:-v)be1. dxzse xf 1etoobject after the collision is

  A red ball with a velocity of +3.0 m/s coll0uu8tpf xe7n* 3 u8ggmides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What nu0 gug7px3f88te um *is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with aq(17zyl y, qwo4g 2yn 5uqy(pf very light object y25w1(l n7qgqf4oq yy,yz pu(moving with velocity -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 momentum is conserved, then which alz8qp*x+c 1f9rujh +pz6l 4ff;1ai b of the followhci;rxj+f l 6a1uz8b+p lpz*f 194aqfing statements is true about kinetic energy?

  Two objects collide and stic) n30 cdr)whask together. Kinetic energy

  A 3.0-kg object moves to the rc5 8r(dbs+sz 6.s+/kys3z /aetim lqi6 o)pzl ight at 4.0 m/s. It collides in a perfectly inelastic collision.lbzz)o/+sy +ecl( 6s 6dk 3 mi/s5q8i ztspar 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 object a93v mzo:ehe 1hnd sticks. Which object experiences91:ozv3 ehhe m the larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is dwgp5sj bbg ,4k0d )q 23ces3wceflected 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 f 6g)lr 7vovg 0/csv,land m. Which of the following statements is falsvf0/ 7gl) csvl o,v6gre?

  Which of the following is a9o )9 afe wcqzq6 0,zc8b.skat false statement?

  Tightrope walkers walk with a long flexible rod in ordeew+m:2q+hec +hzv 8x lr to

  A plane, flying horizontally, releases a bomb, which explodes before hittingo yu6e-6 bo6bf the ground. Neglecting air resistance, theebb 6 6y6-oufo center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a lev 8d9w iv e)bxl5w8vqj9el friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity wx qdib 5wl8vve9 9)8jof this system's center of mass?

State Newton's second law fojzb5 lpv. bhfto6 rp: i.+w ;(3okxme5r a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/s?n j4hvq/b560he3xe q lw2,ru d

  A 1200-kg ferryboat is moving southkq iz y01hxf7* at 20 m/s. What is the magnitude of its momentum? hq *0fy1xk7zi

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentu9dnt b 99 a(zx(k 8z5jlsfce:tt 111e+x qbpowm when it strikes the ground c9dlw:at1 x x8+pznj(s ob(ftq 95 e 19e1tkzbis

  Two identical 1500-kg cars are moving perpendicular to each other. One moves /;tu:higt 1szwitt/huig1t :zs; h a speed of 25 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 0.10 kg, traveling horizontally at 30 m/s, strikes ye/4h cftdjc gz,;)c )cq;k7n8vcz: fa wall and rebounds at 24 m/c84h d n,zecgv7t;y)/:;) fcf zcckjq s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball,6,x)ory88 rf;pc l urf initially 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 change in mo pfr8u 6r8xfy )r,lo;cmentum of the ball?

  A 50-kg pitching machine*2y; cj,p g hsj19phj- rrt9pg (excluding the 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 direction. What is the recoilgyr ;shtpcj1j9,pgjp 92 r* h- speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and mcaxywi -:oe2 /*rop) is stationary when the tether line breaks. As ao moxpe: )a*r- /wyci2 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 momentugg 8ry7qq 5pm/5erz - 7nmowd(m 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 magnitudeemq7z5w g8m7or- dy n( prg5q/ of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), wqlp7h6zxw9/(we 709 88mbzbo oe swrdb6w:ddho is standing still, with open arms. As yo6z ( p7q h: 9sb68dzewbbxwo890wd7o dml/rew u 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 dnz kqj( k cn;2e .dy.8lqjku465dt8q a level, straight road at a speed of 6.0 m/s. It collides direcj. k nj(tu 2n8 k;qqczd6d8.y4ql5dektly 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: .qwka;-ykp7ax x9gk 0lzo1g a stopped car that has a mass of 1500 kg an0 xxqgkyp .7 :kwk1lg -9zaao;d 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 along e0v15fp gmf i:d x6-oba level track at a speed of 2.0 m/s. It collides and couples with a 5- 5 fpe1igboxv :6df0m0,000-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 negligibl5g94y ly dne;ne friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight de4n9n; 5yldgy own 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 ratel1 1jtpsg3ve7dd 49u q of 0.80 m/s (with respect to the log). Wiup3ldd1eqt sj1 7gv94th what speed does the log move, with respect to the shore?

  A 4.0-N force acts formgoixu*0a(w :s k-), dp ;iubnda(bn9 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse wa0ad;wm *nkb9ngo:(i, )uu sbaxp(-dis imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg obj(a.xjo)( boauect. What is the objecu( .x aboa(jo)t's change of velocity?

  A 2000-kg car, traveling t4)dw,+h-hs gmsl ) maco the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. Wmh)+-,cms whg4l)a sd hat is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit ty, i-/nw f07hcyu1s7l 7tt avjhe ball back along the same path, and at the same speed. If the b f tulvw77c ysi-0y jn,th17a/at was in contact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dro/em :;d3iif k)a8af q)hd6aerjg u o48pped 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)d fad ii /eeor8q)fa;kg :ha36j8m4u 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 35.0 742 d9z:ixaa zzmd;e jkg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. Whad4i;ame9zj72x: zza dt is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in ord0 e196m3ep0l4:exr spfvd l dfer to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is threp0ve6 sp4x:0 m1e 3lf dld9fe minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainu7vz9exr z/+bbp(3kn:)e pvus p n(p)pipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't spln/upv z n:veuzr (k))b b(sp x937p+peash 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 dnfrokqx84m:ax:yx+mb :** l s, when fired straight up. What average thrust force does thlda y*f4qk::*xmx ro+m xb8n :e rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiall, n u8+ w.cb* edzx*orsow59qiy at rest in outer space. They push each other apart. What is their separation after the lighter astronaut 5+bisdnwcrqzu o*8. *ew ,9 xohas moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a pef9wc .hfo qxwvowjt 15o++4x,rfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What .wxfhv 4 oqtoof +w5,91wc j+xis the total kinetic energy after the collision?

  A 0.10-kg object with a viw,g1nol b k+ 7a,b5olelocity of 0.20 m/s in the +x direction makes a head-on elastic collib wlo7 +,,glioab5nk1sion 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 movingnd3ge1+uv r5 e 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 its original speed. What is the velocity of the block right a+1g3 reuvend5fter the collision?

  A proton, of mass m, at rest, is struck head-on by an a9pvu) tjkf0vd7 d,ea4lpha-particle (which consists of 2 ev7j fuk 9dv4,padt0) 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 mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball oe 7g5d,l9g edx9cd3hef mass 100 g. The collision is elastic. What is the speed of each ball immediately aftg9h573,ecd dledg9xe er the collision?

A ball of mass 400 g moving toward the east with a spee pa f* yz7btmnjv .;3t1qr2b1xd of 3.70 m/s collides head-on with*ntbz j m2;7.ty1bqrv1 3 xfap a 200 g ball 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 collil+)wfgl /6;yh9zdm wc arzz83des head-on with a 3.0 kg mass at rest. If the collis;z )6w +lzf9/gy lwcmz3da8rhion 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 collides head-on in a peea94khm i *yk;rfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energ*ke9aykm;4 ihy is lost during this collision?

  A car of mass m, traveling with a veloc8z-tkctj+ )+wq7rm7m mqu )lzity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kine87wt+j+qz c - mr7)lz)kum tqmtic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.4-n1ov; ou/xw9aik1,(* hlmxxckg block of wood a rest directly above it. As a result, the bullet/block combination moves na w 1 oxoucx*x1 ;,/imkh9(vlvertically 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 kce td16 b(g(q; otvkv+m/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 speed of tc;g6(t1k oe+dvv (qtbhe cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with ap*wea *u s9xbc186xhw 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the colli6b* wwe19h8upac* xs xsion. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictit,fusz;qk6tt.p wg6: onless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. p. t6tgz,u;:6kfsq wt They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass r a7f07:jt lph10 kg, 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-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 frictional: thr0 pf7j7.)

  A 4.00-kg mass sits at the origin, anm o37;z37 4 apbd(ujzk0ccgv ld a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axisa lzp vgu3oczj(70 43k 7;mdbc?

  The center of mass of a two-particle system is at the origin.cn77ag10jh0xq)q x d x One particle is located at (3.0 m)q dj007h 7x1n xxacgq, 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 +7svu c z:wa-l7.yq d,+iahslkg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of thedsh+y+ qza.a:u-s lv77i lc,w center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0qu.(r 6:kobv //irog ww7.fyk kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m) bfoy.ug kiq.wrv:k7w6(/ or/, 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,fj lm3g .gbesk( )k4(lr(iffw (mc(3v 0). What are the coordinates of a 4.0-kg mass which will result in the (eiff(( wm)l( .(3gfjlcg k4r sbkv 3mcenter 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 including te9l -) sg,jekmrm-v g/he foot when the leg is stretched straight out. Assume -gr-elvj9 m/k es,mg)the person is 1.60 m tall.