What is the SI unit of mow* z4ibm2ctjh lz:p0-mentum?

  When a cannon fires a cannonball, myoqr ,*d22h9v s -xouthe cannon will recoil backward because the

  A freight car moves along a frictixkp:+q g,5b ab+99ckyipm /illydm++ onless level railroad track at constant speed. The car is open on top. A large load of cog9amb/yp:c+ix5i ym+l 9+q +kb,klpd al 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. W.vw *-nt9 xwt7cnrl3fhat happens to the velocity of tr73nc .9xtlt-*fnwv whe sled?

  A rubber ball and a lump 8oz.;n1aoc (h w/ iuyeof putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly ta1hy/.(o wei;8n o czuhe same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentsy512v8z+fylog l )e3dap (avlgkp-2 um p. How would you represent its kinetic energyve v+23fgl k-8l5(o spap 1l) dy2azyg in terms of these two quantities?

  If you pitch a baseball wit; noun /)3fc9ga uhlv6h twice the kinetic energy you gave it in the previous pitcal/cu g)fn nv uo;69h3h, the magnitude of its momentum is

State Newton's second law in terms of momenth44-,vj5 z6pzjnj tf tum.

State the law of consersg091+0fxmcrk 4k wr1knp) f avation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph representzr er(b.o- a(ws

  Which of the following is an accu2ci;h b 0*bg c:ojt6jzrate statement?

  A small car meshes with a large truck in a head-on fjwl8/vo isq ds36y4)collision. Which of the following statements concerning the magnitude of the dsyq fjv364wo)sl /8iaverage collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same hei 9rkjc(8d+ xfkght, and rebofj(k9d rcxk8+und 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 (pe/ft/+.n7 b zywurm speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling balle nm/ fb/t+7(puywzr . moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear mox 1na/f(bo ed iw4+h1ementum

  A 3.0-kg object moved-modh x3(5iqv8f6 eps q8r-j s to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left hj-(edq6 m88osrf35 ip-qx vd at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker mhq xzb)se4wy 69 -dgb;oving at 2.0 m/s tackles head-on an 80-kg halfback d4xq-s e;zybh)w6g b9 running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision,g2u1 ifqh(m1*wksy-b if the momentum is conserved, then which of the following statements mgu12bi-hq1* k(s fywis true about kinetic energy?

  When is kinetic energy conse86ag ihr4( j;nc(/oc.wc8 y lrjd0)yev g ate6rved?

  In a game of pool, th d9gjh)egiz- u(i e:2i *ouez3e white cue ball hits the #5 ball and stops, while the #5 ball moves away with t(g 3:uzhudiez*i2 e)-jge io9 he same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a spee8 j-ji nwniku *o01q2id of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be,0-iiw n q*jk uj218nio approximately,

  A golf ball traveling 3.0 m/s to thly/mbbp )u-z7e right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is al-yl u 7m/bz)bpmost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 jrhjrr73h l ug -.*1mym/s collides head-on elastically with an identical ball*.1r-jjg7 hl rhyu3mr at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving withg(u67 9-o1ewmh lfgni speed v collides head-on with a very light object at rest. The collision is elastic, and ln1 hw7ou-f em6g(g9ithere 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 with7j df.grha .8rzj -4 hyum90aj a very heavy object at rest, in a frizj7d. hmgy.-a 4hjf 90arr8 juctionless environment. 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/e.h,kgy)jlj2larq 2 1hd e ,r0s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ba 2eyrjr)2. qj 1e,lgh ,hal0kdll after the collision?

  A very heavy object movingw5;drfc;id(n iuad.vgrb ;0 - with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and therucr0d; i.naid bfd r(;v w;5-ge 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 conserv(iu2qiggy:y-f +l p7)wc dj8fed, then which of the following statements is true about ki2py8gl g:jqcdfuf+iyi-( 7 )wnetic energy?

  Two objects collide and stick toge-2uj pkpfq9xmx2 y)6rther. Kinetic energy

  A 3.0-kg object moves tox)o6j z h+8f,;rb6gkauhdbl v(t;g 73cpwz6h the right at 4.0 m/s. It collides in a perfectly inelastr h,lgvhz(f6kd7; +)t6bw aobju6cz; h 38xgpic collision 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 laibmc;0,n k -thrge object and sticks. Which object experiences the larger magnitude of momentum cha bkmi thc-;,0nnge?

  In a game of pool, the white cue ball b8oz oit(*7ew)bqh )dck7 :vghits 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 sta5iffns6 -xn*a tements is false?*sfnn5xi6-af

  Which of the followi z9u 3()ump;qr ;c5oibg:hchyng is a false statement?

  Tightrope walkers walk3wiu+dwp n x/0 with a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitzxd6hr bkjq6+a/h 8z- ting the ground. Neglecting aia/z-h d8kqzh+b6jx r6 r resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on/qsz9hgr20 j h a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the veloch9s z qjhr0g/2ity of this system's center of mass?

State Newton's second * ucne.woh- c.r u qb+mo 71n6/vjcm-yjq/i5v law for a system of particles.

  What is the momentum of a 2000-kg truck traveling 6(e/vy9a,n04sw hpgjybkqkz+v- -iagx.0 t tat 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its meu9 zft/rt) k5omenr)/te9tk5fz u tum?

  A ball of mass 0.10 kg is dropped from a o5 /lhks -qt qbbuu3/:m-s yz ,dlrv3gcv)3(vheight of 12 m. Its momentum when it strikes the ground i( q3vbr -,5m/)uuvtv/3l3s lyko hzs -cd:bqgs

  Two identical 1500-kg cars are moving w)01yj-v1 p9 fh;aa mxgfkk k+perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due efp91h0 jk fmk1kw)gyav+a- ;xast. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a walwo/a np( ;;mjif yco9.m0w; fppkk5+-w oy nb9l and rebounds at 24 m/s. What is the change in the momentum of th o0 ;p9p jnmwkff(5 iw+9 b;; onkam/c-yo.pywe ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/q o4ms;.r 3tp.cja( kes, 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 momentum of trepcj; q4sm.3(k .t oahe ball?

  A 50-kg pitching machine (exclic* ,o2a(4 ztv;aqsrlf7yylx0v o: +luding 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 recoil speed of the pitching machine? (Assume negligib vza+l07lyat;4: *sc2 , ovfx(lq oyrile friction.)

  A 70-kg astronaut is space-walking outj6kev:4g .p ;sg;yr *floxx+loh fy 8.side 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 +sp y v;gfxoh*. 8f:k;. yx6g4ellrjo capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approache1bu/ p3fmflq5cqxceu+-. 1 m-qw)k tp s head-on a large object at rest. The small object bounces straight back withckxtqu.e1lpm /-+m-3ucf)5 bq qf1wp a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kgsox ysh.(jdc32pl: )d mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togo2(ljp3)csdd hx.s y:ether?

  A car of mass 1000 kg moves to the rigvy4-9xcxp 1 dia df 4+tudc**vht along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycledpdid vt4au9 1v- 4*fc xx+*cy 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.d pooz:ge4. kn .k;p-/ c++idbus jbo a stopped car that has a mass of 1500 kg and they stick together. What is the speed od 4no/obu s: z pbkci+jkgodp;-..+e.f the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level tra ( 3 lu1:k-/v uxjdnn/6rxouzick 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 thziu/ x r(3v-unou n6kjxl /d1:e speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frictio0kbnq (o /7vxcn on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, an(bn7k v0cq ox/d 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 7 ww .de:rceg4rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect.rde7w ce gw:4 to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15i8dfu0 cn i5 3k:vp4ke4x2ndq N and acts for one more second. What impulse was impartedc :3kdfnvk84e4q i0 pu2xi 5nd by these forces to the object?

  A constant 9.0-N net force acts for 2k .8fpdyuw; mild ybk/.qwo7 /nf/.w:.0 s on a 6.0-kg object. What is the object'sf;n uk.q wpy.w 8 w/yb kf.dimd/7o:/l change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides w aal6-.vc+jhw he t3.grak 5b*ith a brick wall and comes to w*che3r+g-aba..5athv lj6k 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 mi qwkpr(rga(ss0jwr sfszx4g6 /.-10 /s. You hit the ball back along the same .a6p/gz (xgsjfs( iq4r1sr0wk0s w - rpath, 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 exerted?

  A 0.10-kg ball is dropped onto a tablm. h 8mk1-n,z3 pvka4+ ppbtoye 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, respect1h -z pkv ,+3noabmtk.m8yp4pively. 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 bulleq ++jwk:wma0b ts, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted oa0+kbwq :+w mjn the machine gun mount?

  A fire hose is turned on the door of a5 0izt2s d o79kocp39gdt4b fa burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the wate7fp9od9a bi40s52kczogt t d3r doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. It km:vy ,0fi:stjypm(/ falls 3.20 m to the ground. Assuming the water dot,m:yk ijf p0msv(/:yesn'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/saa 4) voo) pgc/bi)xf8 after 3.0 s, when fired straight up. What average txboa8 vc/pg ))a) if4ohrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest2tv2h/, v ljtg9whch 8 in outer space. They push each other apart. What is their separation after the lightt 8 tvg2jvhhc/ 2h9w,ler astronaut has moved 12 m?

  A 3.0-kg object moves to the rigzea+- zxml:/tq -s:8 +btjyevx l;k *x9n2hd hht 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 collisil*h/ zvz ea;x-9 mj8xy2k:t++tbdxsqe hn: l -on?

  A 0.10-kg object with a velocity of 0.20 m/s in thec1ai+ctc3k+ w7xt-jt z6hngi y 7-3pu +x direction makes a head-on elastic collision with a 0.15 kg object initiap3-tcjx izyu7wt 17ikg3+c a+ ch- n6tlly 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 rest. Tz*+/ ya 2vhvywpk/q.tbar hpjf( s0 .*he bullet emerges (the bul *+vyqw fkt/ y*z ja./p2r0svh(phab .let 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 alixt:aj4u * *o fbaj76dpha-particle (which consists of 2 protons andbt ox* ijd6fau4*:7j a 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 yjtfuf,e,8oyhvnfaz( (4rt4 5y -f1x+10 m/s collides head-on with a stationary ball of mass 100 g. The collision rh( fn(f, , j4 y5xef 84votzt-yyu1fais elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collshbur83t. r .m d9f*;y qt v3n8qkx9uvides head-on hmkr y3*.suv rx u;8vtb3.fq899dnt qwith 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 t3bib((v zt.-/ svavzq 0w1bhwith a speed 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 col ( ztb0zv.3i tq bsvwav1h-/b(lision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s* qaray51.rw*q9t ien collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kineticr1yaqr nta* qei.w9*5 energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, m a3 p90 l+vgn-vfi64nl.erua2lp c5twho's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the init- ua24l0fgpapmlve3n9inc+.v 6 l5t rial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itselfeng4 e6.bwp ra9 0zj1f in a 2.4-kg block of wood a rest directly above it. jb6.zp910gne4fwear 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 eah uxxl njzth)d4z(1lco 1 1*4pm2dn5r st 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 the cars after collild u(x1ohl cr1x n1j4)nh25z4 d z*ptmsion?

  A 1500-kg car traveling at 90.0 km/h east collides *lo d4nj6-n2nj rv fz0with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-6 ol0 dr*-jf nzvn4j2n1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless 9l6; twfmqd/pl /q.3f,q3 vtscj6z uhsurface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic m/p9 t3q fll 6js. /3hfzqtdv,uc;6wqcollision. 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 velocity of* r(s e:i z6i-n2k:hnywbq :ok 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 1en: 6*i(zk-o bskw 2qhnry:i :.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 sir;p*w kamea4 0ts at x = + 21.0 m. Where is the center opaw r4*0e;ak mf mass on the x-axis?

  The center of mass oijqukr/p 8mk (9a36 sof a two-particle system is at the origin. One particle is located at r( a jqki/so3m9k8pu6 (3.0 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 kgj/mh,ed.-1,c.midwsrx ra y: at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determra y/xd,h,ci.ew.d 1jm- r :smine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0n* szl(k yl u5bb52ik; kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is tzyb s; l2k(l*unik5b5he location of the center of mass of the system?

  A 3.0-kg mass is positionee;-) ua+.3 ufig ba6kxb( xvhcd at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are +-(gx vce3ikf;6h)abu.u abxthe 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 calcula5mgppyonfxc .v*(*tnfd k;t o(. .u: yte the position of the CM of a whole leg including the foot when the leg is stretched stnyf*;y. (fg:..*x toc ou n5ktmp( vdpraight out. Assume the person is 1.60 m tall.