What is the SI unit of momenw dr,-beww *9stum?

  When a cannon fires a c7 .0p+rmsxl.fbrhk/hl-sabqi 7fe (1 annonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at consjk vs37pt*ncso gtcu;7:loqen6+ :d/ tant speed. The car is open on top. A large loadk/dn:g:* o7l3t;7tqscvo +p6un ejsc of coal 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. Wha qs2sunzxc7 (gcy7l87 (y(hn nt3ie6pt happens ton73ieypcgu27tcq h sxny67(nl8s (z( the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown qbs)(+j cf1lrc6 s 4w. z:shtg-ly zq(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. Which objects erbc( .tsszyfq4c)-(l jw:+h6 s 1qlzgxperiences the greater momentum change?

  A sailboat of mass m i9w0i dx8pyrh0ew/ i -ms moving with a momentum p. How would you represent its kinetic energy in terms of the0- /dxp9ih8wwy re0mise two quantities?

  If you pitch a baseball with twice the kinf,b+.02l0mfm it+h5q qjj no oetic energy you gave it in the previous pitch, the magnitude of its momentum isiton2moh l+.jj,m0 0f5b+ qfq

State Newton's second law in termhx2vgrbzh/ zv8c08 t*-p y.oos of momentum.

State the law of conservation o8xf9 mfzfn gozywl9f)7h 8,7 of momentum.

  The area under the curve on a Force versus tiju( :urv9f c+oa ;d f5shvg,z9me (F vs. t) graph represents

  Which of the following is an accurate statemen0ba4r 2ami6k lt?

  A small car meshes with a larg/ixo;jh eli b(ie055cay c4(ie truck in a head-on collision. Which of the following statements concerning the magnitude oaj(4e ;i/c05 i(ic5 exyihob lf the average collision force is correct?

  Two equal mass balls (oneeygv r,+nt/rw) ; fr.l red and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebo ve nl;+ryr.r,g/)t wfunds to a higher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball mov 59dn ntch qd/1 t-p6k-jvkok;ing 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 moves very slowly to the east. Which object experiences t-n5chkv dnq/- t9t6pdo kk j;1he greater magnitude impulse during the collision?

  Two objects collide and bounce off each otheon2 gw*c*ah0um,4nu++ x xmp ur. Linear momentum

  A 3.0-kg object moves to the right at 4. ;5d2w8 gkm-m 9buvmqp0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0p k25g 9wb vum-8dmmq; m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m4)f- a st3qer n1afbs,/s tackles head-on an 80-kg halfback runnia34f1a) nsfsrq e-b, tng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum3.o 5asw)a cni is conserved, then which of the following statements is true abaanow 3.)s5c iout kinetic energy?

  When is kinetic energy conserv7jg8, d1iewrqvp v v;6ed?

  In a game of pool, the white cue ball rsq,lwz )s9w ;qgp cp9poa-7-hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue owr,qcwpqlgs zs-) -9a7p9 p;ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6)hjjj)z/b z j p7czm0vhrqg*4v 4-1n c.0 m/s collides with a heavy exercise ball at rest, the beach ball's speedq*4hpj4zh mvbzj 01/ -)rn)jzjg cvc7 after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rig 6u pbcwxzzhie9(d)yq p .)m48ht collides in a head-on collision with a stationary bowling ball iwc(iz)zpd4u b .e8h 9)yxp mq6n 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 sh: i5 .mcmyz: v ,siro,,,eodcpeed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball ,y :iicermd ,:,zs5ch .v,oomafter the collision?

  A very heavy object moving wc)f s-v.fcbn50b. ntaith speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heancb n-t5f fs.bv. c)a0vy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides (u5 njn9e9fgu*lx 3ym head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The spee elufn x3g95m(uj9*ny d of the heavy object after the collision is

  A red ball with a velocity ofog ;h r2/eydn +9/s.yz 8qkykf +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is / zh2+;.ko n/g ryfk8deyq9sy the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collidesao4cdfyqv81b:+cg2 w .gvb 9r 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. What is the speed of the light object after the collisio9y:d ofcgbba2qvg+ .vr4 cw81n?

  In an inelastic collision, wx*j q;xl1:, st/ 9fpajpot-p+.ko wp 5)awl vif the momentum is conserved, then which of the following st ojqs ,jkxxpa+f wpw1.l-;t vapw5):/p9*ot latements is true about kinetic energy?

  Two objects collide and stics qu-9yby p89 .n5 np1g)zziysk together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly f 3crto jvghnwma * m0u+92jv2;, d)zqinelastic collision v9jojm2w, 2d avn3r+u)0gmh* cqtf;z 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 witvj/eg7b 9 9+ulngh*w eh a large object and sticks. Which object experiences the larger magnitude of momentum/b evg7*j ug9w9h+nle change?

  In a game of pool, the white cue ball hits the #9 ball and is defleccmg43k-g2l n +k-cnq xted 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 statemykr(5v5drj8 m.l- w auents is falsa ulm5rr58v( w-.dk yje?

  Which of the following y 4p5ca+6y*dt( ep v(v;usoz xis a false statement?

  Tightrope walkers walk with a long flexible rod in 5jf -9en9 hwdoorder to

  A plane, flying horizontally, releas9f l:wob u9f(oes a bomb, which explodes before hitting the ground. Neglecting air resistance, the center wlf u9f :ob(9oof mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free roadu(c6 ) +qo;8dupceuco. The collision was completely inelastic and both cars quickly came to rest durdoe+)uo c;(q8 6uuccping the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of -(ijalb2b m3xya l.fzol* 8 :sparticles.

  What is the momentum of a 2000-kg truck traveling at bd3b+h/+ a7ubn tzue x8;k9 pz35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnit k1q2pig(0bcv- 6qa8ahtu,inude of its momentuiu-8q2(tbv hp, g1i6cakq an0m?

  A ball of mass 0.10 kbhi1t 0o0n q0mw 4tkkjq*w1x-g is dropped from a height of 12 m. Its momentum when it strikes wkq41xk* t0 - 0wqt10mhibj nothe ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One mm 6.+a,:qxul hes6 raooves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the6a u,serx+h qa lm:6.o total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s82k uq ;kwbaq0ik8/rw, strikes a wall and rebounds at 24 m/s. What is thekk/qr;q2k i8ubw8a 0w change in the momentum of the ball?

  A 0.060-kg tennis ball, initially1sy 4*3m il8fbqw bw6k moving at a speed of 12 m/s, is struck by a racket causing it to rebokw3qs86*ylf mbb iw1 4und in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (7d)xyn k2j6l hexcluding the baseball) is placed on a frozen pond. The machy7lxhnj)d 62kine 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 negligible friction.)

  A 70-kg astronaut is space-walking outside l7pf smlh o. iv5+4;tkthe 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 14il fpk;vo5.h7+m4st l m/s away from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on h p60ps4 -kx6kth5prea 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's moment 6e4kxhrs 6php0-ktp5um change?

  You (50-kg mass) skated l pma2 i:.l-8.xsbte 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 do you both move off xabd:pel.s. l-82mti together?

  A car of mass 1000 kg moves to the right along a level, straight road at a saw2edtv zo seh146;q3 ;f: jtcpeed of 6.0 m/s. It collides directly with a stopped moto2feqh13: c aj4zvt6wot;eds;rcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 g6w o;uh6e0tb s*(udhm/s runs into the rear of a stopped car that has a mass of 1500 kg and the06 std( g;6wuuoh*bh ey stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alljb9.ua md 93dr )s*yq ,idjr)ong a level track 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 the speed of the two cars adba9y,* ddi qulsjrm9). )r3jfter coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizo lou/:;9nqjdontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How fast will the car buo:donl9 j/q; e moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80a:iq3y;3lsng s.c)5,q hz mht m/s (with respect to the log). Wyq: m3s)g h. ;ah3ltzsi c5nq,ith what speed does the log move, with respect to the shore?

  A 4.0-N force acts for ,i0wi 649oe 9o qrtpysrbjz1/3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by t, /ri9e wb 1r9o 6zqptsijo4y0hese forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kivedx4g*5k3 mg object. What is the object's change of velocity5xeik*dm g3v 4?

  A 2000-kg car, traveling tobexx; oxqo;97 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 cx7 o;eo9q;bxxar exerts on the wall?

  A 2.0-kg softball is pitched to you at ncbcm8 0 o(8mk : wq..snul,ceflep /(20 m/s. You hit the ball back along the same path.s8 cwcl(. lokn,cfp:une 8 qmme(b 0/, 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 ygd/f z1-0w6ck/ hvy5r/n eb zgfy+j y j7-v0vonto 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 collisio//kjzyvv/c gwf0-5gd6 nh-byye 0y7j1rzf + vn 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 masa izg khmc.,p2;rl +/ds 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the averazmg;a,ld.h 2/ r+ikc pge force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning bz)t.,1 yo g)8camus zuuilding 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 watz.)o8usuy c t1ag)zm,er doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. fbi;3 *nfs;rxs v w8w-It falls 3.20 m to the ground. Assumi;8n3s*;xw-ivrbwf f s ng 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 after 3jf7lh9e90v x jhbfl 2,-n:w/qavxc)b.0 s, when fired straight up. What average thrust force does the rocket ehxnflv ehl bv)7j9,: q0x9 cjw2f/-abngine exert?

  Two astronauts, of masses 60 kg and 8 c /y pyqqua,55i2tue:0 kg, are initially at rest in outer space. They push each other apart. What is their separation afyac,q2/eyi qut p: 55uter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collid/puunhj38vv4 m7tk.yf z .ag 9es in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Whap v/t8 zh .9kuu3vg.y7mj 4naft is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in en q o61lw1kt2the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is thqw1 l6k2tn1 oee final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m8wbb wr/ya bfk;b2:0ue-ngk8/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the blo-b ub ybf; 0kwk8 gan2eb:rw8/ck) 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 sspbw rgl k-q/dc:7k+ 0truck 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? (Assq0s k-cg/ldbr7: +kpw ume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of rbcgc62 4pxe4mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collicb6c e gr4p24xsion?

A ball of mass 400 g moving toward the east with a spefy tavjr :/vn.(lt,3*s ph+vn ed of 3.70 m/s collides head-on with a 200 g ball sitting at .tnh,/vp( j:* ly a3v+ntrvs frest. 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 53ef5qlidif7s*- t-eflq7f b:+h rm-h.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inela -fe blfird e7s hq:*fl+3fh qim75t--stic, 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 collmnavwy lw*iwfi5//- 9 ides head-on in a perfect- y viwaw9/w5*/nfmli ly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with aq ))b x9*jxtsz velocity 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 kinetic energy is los9*zxbstj xq ))t in this collision?

A 15-g bullet traveling 213 m/s in a vertical dntku fh,l0 c(kyh 6)ubrv)0k6 irection buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verticay( k,fb6))0rknuthvk h6 u0lclly 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 travelinq*y4qw )a f4kkp/mj :2t d94k.ouomt hg 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 speed of fodt:wqk.ophajmu 4/y2 44q* kt)m 9kthe cars after collision?

  A 1500-kg car traveling at 90.0 km/h eeff1q1;;tdnq-n2qgcp oqamkj 0f c:8 j960 a sast collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick g1 60q; f1tfcedqqfqap892-nsncmo;ja: k 0j 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 sua)p c6vs n2r l(9izosy:h8 (5j3odthkrface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. o85h(6rk sto z39djvacl:h) n yp( is2They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of masv5i1v-1-02xxjprri;5i io z rw: j hzis 10 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 sp5: r;x h5o 1riijiz-21zjxivp riv-0 weed 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 tn/o937l1mbh/ od:p vrvchid;a/ 6swthe origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axi9h:m//tbprwcn ov1a3; v7l o h/ 6sdids?

  The center of mass of a two-particle system is at the origin. O9bpv+ dxvj(r) wi3z 1 lu)mm)gne particle is located axrm)pbz1 g iv9)v(3j) lmudw+t (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 kg at (0, 0), 2.0ie iw7)b;h3y7ffnvr2mpd 4*y kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determivf)7y hb4i;r7i m* fpnw2ey3d ne the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and z7+k9dsf7 6bo sj(7ue9o ia6bjouqv43.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. W u7k+i7e6szquoo 9(bs7 of49jav jbd6hat 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 att;:gdp /ny1kr (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three ma1r ;yp:k/tdn gsses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position ofejb :-cae-.2 rhqt 1lr the CM of a whole leg including the foot when the leg is stretch2alr. e-q cbt-1hj:ered straight out. Assume the person is 1.60 m tall.