What is the SI unit of bj3g* tu 0.,gb bnjr)pmomentum?

  When a cannon fires a cannonball, the cannob -9 n3eb,k 9bdll4px hd(9ozyn will recoil backward because the

  A freight car moves along a frictionless 4h.b r3es xbj)aepec, -e*cp2qed* u+level railroad track at constant speed. The car is open on top. A large load ea+j pcd*r3x42 e.,e *-)ebsqpbhec uof coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while /2x2im.edm wu ;/ff mcsledding on frictionless ice. What happens to the veloci2x f /i;2mef./cwmumd ty of the sled?

  A rubber ball and a ir( wymk,8n3elump of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with(ike ry3n, 8mw nearly the 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 momentum p. How y,0 3yi-w vivlwould you represent its kinetic energy in terms of these two quantvi,y0yi3 -l vwities?

  If you pitch a baseball with twice the kinetic energy you gavev4lraa)ju wz 8u0yd*99 4yzen it in the previous pitch, the magnitude )uul yd4w*8vy ra 499zn0jeaz of its momentum is

State Newton's secondfab2 tk i/msbk+ z sw,(-bg n9gi-j-rp8hr-s8 law in terms of momentum.

State the law of conservation of mtdun .)gr se9kjyop2rj7*,xhm3 )0d qomentum.

  The area under the curve on a Force versus time (F vs. t).v-8l wt) z89 wukajqn graph represents

  Which of the following is an accurate stcgo.9f9 u*s gp :q/uofatement?

  A small car meshes with a large truck in a head-on collision. Wagkcd a(o0t ((hich of the following statements concerning the magnitude of d a0t ok((c(gathe average collision force is correct?

  Two equal mass balls q 1qi,a x3*gzj(one red and the other blue) are dropped from the same height, and reboundaziqq ,1g3x j* 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/smo:z;h4k ntdk;m-2llsh)em 5, collides with a stationary bowling ball. The Ping- ;h5lhld:n4 s kk)mm-2tzoe;mPong ball bounces 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 bytm jz:b1+gx )1*q zasounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-gf *.zl73zxfton with a 6.0-kg object moving to the left at 2.0 m/s. 3zz.ff* tgx7lWhich statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s taj++l pfr.o u1ackles head-on an 80-kg halfback rr+o1j.uaf +l punning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of ti nhk sw8y0*q6wyu /t,he following statements is tru u*q yws86,/n0kihw tye about kinetic energy?

  When is kinetic enerxojkt.q dpw ;7p td*jfh.o3-.y /a;uzgy conserved?

  In a game of pool, the white cue ball hits the #5 e bpp *rs9b(r*ball and stops, while the #5 ball moves away with thep9b( prs *be*r same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of zc12w rtv 0jlk:ao+q0 giz:4d g gxu* 4v1if0s6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approxiuji0a gq10dvx :zi rv4 fo:*4 k zl01gwtgcs+2mately,

  A golf ball traveling 3.0 m/s to the right collides in a head-ogzvh b938i w,hn collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf bg8 3hv,h z9ibwall immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically wit6tv.psk j2h9be(rqam fty - 8lm y+84zh an identical ball at rest. What is the speed of the initially stopped balyh4l-p.s vr9ya8t m fzbe6 tm+(k 2j8ql after the collision?

  A very heavy object moving with speed v collides head-ohga8 epve1/jbjh -is 3ig t.g09j3n2gn with a very light object at rest. The collision is elastic, and there is no friction. The heavy object bar-8ieg0i e 2vpg 3a jjnbhj3/91h.gtsgely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very h*dv :,foqpwj+me .umy/ ud/loh7 x+ tp/u,0vieavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy oyhdmv:t qwoux +p.7 ,p / udjfv*i/ ,oem/0l+ubject after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellowbip 1:nk :c5vj ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of tic j:vn1k 5bp:he yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very leet++xvgy:aua / aip(;zn2b0 ight 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 l+aazb (euiegyx0v/t: na ;+2 pight object after the collision?

  In an inelastic collision, if thef2c.cj99g to f g/nak- momentum is conserved, then which of the following statements is true about kine2g/-tfjc onkc9g .fa9 tic energy?

  Two objects collide and stick togeteqqfn 02tw0 -jher. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. Iz.: tw4n*hdweh;7bp n t collides in a perfectly inelastic collision withw :hhtzn.wbep 7d ;4*n 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 w;dka*pf(ndl 8: q.fs4sgy2 vq:as.nlr r8 ts/ ith a large object and sticks. Which object experiences the larger magnitude of(n /saa*ns.sqg2 rd:yl8tl8p qs .dk;f:4 vrf momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is h:m pf;rmo vfu.:tf 02dn1dr5 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 statementse5g()h 3kwbb cm4s0n d is falseewkgc)0 h nbd435( sbm?

  Which of the following ty7:k4c/yjheamr e c/fko75 - is a false statement?

  Tightrope walkers walk with a long fl++8nsy it9i bdexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes be mkb,0 conaxew2 p,e7pn28c5ragll24fore hitting the ground. Neglecting air resistance, the center of m 7ael 0r2 ec5 pb82a,xwlgck4,n pon2mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. tdab .m,-i-boa -r.bsThe collision was completely inelastic and both cars quickly came to rest during the collision. What is tsibtrb b a-o..,m d-a-rue about the velocity of this system's center of mass?

State Newton's second law for a systerp6s wtscrz7 h,andl-5-5l 4gm of particles.

  What is the momentum of a 2000-kg truck tn ctc0wotjd 0itxy- ,z k583kbt- i8x5raveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 i.f5hwgt- )n6zsjt. (rmk)a lm/s. What is the magnitude of its momes)nt)w (5kia.gfjt-lm z .hr6ntum?

  A ball of mass 0.10 kg is dropped from a heigk nfwu7vw9tr:+cws 3) ht of 12 m. Its momentum when it strikes the ground 7 cv www9ru n:k3+st)fis

  Two identical 1500-kg cars are moving perpendicular to eacw t:x8vas;+s fr.a5o .u-kpv fh other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due eas f+5wv:-ftovxa8psk.ra. s ;ut. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikm2nb0*ofn 9tdd/vvq(e.h k 6n es a wall and rebounds at 24 m/s. What is the change in the momentum of the.mq6dhnnb e v*v(nkt9f d0/ o2 ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a rbo1 mc :g58dsnacket causing it tn:g15 8 cbmosdo rebound 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 (excluding the hq-l2ej(2g( +ngj hnmbaseball) is placed on a frozen pond. The machine fires a 0.40-kg basebag-n jlmn(gq2e2h j( +hll 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 is stati*1rafpv ,w5q sf6g b0uonary 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 5rw bqsfu01f*,6 p gavtoward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a 74f9igcwrj0 3x vgxp/large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude p0j/vwcgg34x7f9 r xiof the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 +lpk q73-s(wr 8hwsip1k;m3nqgqta9m/s to greet your friend (40-kg mass), who is standing stsqp-w(s g7wr m9k; +h1t3q3q kin8plaill, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right alon /n c9-ejb5 ht6idcfg9lh2u 0eg a level, straight road at a speed of 6.0 m/02 /9tuf5l-c d9njhegi c6hbes. 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 s:5pg )grpp kgl:.l;dttopped car that has a mass of 1500 kg and they stick togethegpt.: gdp)lr p;:l5 gkr. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level tracb)ozuv6 yfsfb .*- v-ek at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at re fb)f*b vz6. -vyseu-ost 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 horizontv4 grdfj/1qf4 al 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 wgr4 1f4dfjqv /ill the car be moving after this happens?

  A 60-kg person walks on a 10i9nu 4 r9/fu6h onpp7n0-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respectp6nnfuh97irn 9/ p4uo to the shore?

  A 4.0-N force acts foq) rxlka50*kxfofda ux.w- 94r 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was impaq9 5k*f) -ada4.x rxk0wxfolurted by these forces to the object?

  A constant 9.0-N net force acts /1sxjp1 b2o9ipx;i1xup*nen for 2.0 s on a 6.0-kg object. What is the object's change of velocit1xoxnj1p px 1u en ip*9/s2;biy?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall aebw2mh5 + g2fv+,jd wsnd comes 5 ,vj2g2 bh+w des+wmfto rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball isf+8au*o,ee u 2 walfk7 pitched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the afef*a w,o+u2euk8 7lball 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 spes-wr :bqr cn9*eds of the ball right before and r* :w 9rnbq-csright 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 3540ycxhh2a a8 fm qz9ihnn:, -l.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds pf2n4zhq:ahyl n 90mh8 ca ,-ixer minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a bu-o/n vdbl6h+trning 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 t-nhv/d+6 bto lhe stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe a,c.jnj3 vd2+ 3j ocbzct 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 does it exert on the c3c+z,3nvjdcj .jb2 oground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s,,m /d6i)k6 d/gw4ejto;kif ll)o/mn -3qdjpu when fired straigw/juk injmdll/o6 em)d; g4, p3q- tfdk)/i6oht up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 q 0;dhdv0*7o/6mk ivv yhqe2kkg, are initially at rest in outer space. They peq0 kh0v7 / v2*ydm;6i vkhdqoush each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rl 85n(ttra 8gkswk- xk)c/xf+ight 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 t-s)x85 n/kg8+klaw fx ( rtckthe total kinetic energy after the collision?

  A 0.10-kg object with a velr)kun ;i*tm*jocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What jik)u *;nr tm*is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m4ht,u)a z d-x 3sa+n, mdui0xq/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 th)d+u-du3s0 hzma ,,x4ni xatqe block right after the collision?

  A proton, of mass m, at rest, is struck head-onzyi a ;ukp i:17osi+ai5l37 h/leao:m by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what u o7liye7s/a:la3mak i;:1+iphz oi 5speed 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 sta/d4w mz0m yfj(e2 c5net-rb -stionary ball of mass 100 g. The bwtn dmj(-/ey0- zrc5sf4e2m collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving towardupt2m7 ;wzs ;uw(jci2 the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting atzw7( ui;2 m2t; spwjcu 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 head-on with a 3.0 kp:s*ano) 3 yngg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the cons3 )n y*a:gpollision?

  A 2.0-kg mass moving to the ease x6v(n) bn3htt at a speed of 4.0 m/s collides head-on in a perfectly inelastic collisioxe nh( 3t)nvb6n 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 stw :3lsif-r. a6hggttcu b;k06ation wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What frw6g as 6ck g:b0thlt .f;ru3-iaction of the initial kinetic energy is lost in this collision?

A 15-g bullet travel7mp- f-wk.dhl ing 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves-- l wfhm7d.pk 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 a 3000-kg car r2 j5oo6* *bp;ho9 jzpr-he.dzxm 3wr traveling at 60.0 km/h south. The two cars stick together after ox.r69p- zp5 oh;jdr * emw32hbjr* zothe collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg ca( lhu(uw5c6m gr;142pjno jyb r traveling at 60.0 km/h south. The two cars stick together luh 1ou nbry;m(6c2(j 4 5wgpjafter 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 eas z7i2r +2delnmt with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They 2l2 in7dez+mrmake 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 velocity of8gi)7dbd5 lup 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 gd7ubd)5lpi8 velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass si)hq+wvy0s oty.9j3 af:erqo5o t.vx7ts at x = + 21.0 m. Where is the center of:to9rqa5) 0h q.jet v.3x+7yoswvf oy mass on the x-axis?

  The center of mass of a two-particle system is at q)xo(tu q-92s rci kd6the origin. One particle is located at (3.09ux )iokt(q d sqc-r62 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), 2.0 kg at (2.0, 0 jvhv c -w(5j+bwlebayb22-(z), and 4.0 kg at (2.0, 1.0). Determinewc-2 (5 zb2jeb+blj a-vh(yvw the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0),ysatkqzxs1 c n90l1nr6,u 8r 5 (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respecti8,szkx lsr0 a nr1nt9 6q5uyc1vely. 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 (12xptm)rq/*e k ,, 0).tmre*k /)qp, x What are the 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 calculate the position of the CM of a whole leg includin8x90wa tag( pug the foot when the leg is stretched straight out. Assume the person 8a0p ga( xut9wis 1.60 m tall.