What is the SI unit of moment44nx;f mq.m :0m ru)br:5u inop+dqizum?

  When a cannon fires a cannonbg+:5u ;yaumly all, the cannon will recoil backward because the

  A freight car moves along a frictionless level r3rbx/rh;h3g xailroad track at constant speed. The car is open on top. A la r bg3x3rxh/;hrge load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled wd(bnoqjzr 9(0es9* h7 .rov9sjmz5snb -3fo shile sledding on frictionless ice. What happens to the velocityj9o05 jvr*e(s7 f z 9.mdnqshs 9r zbo-obn(s3 of the sled?

  A rubber ball and a lump of putty havlbrr.btb ...d v0u( tue 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. Which objects expe ult r....t(bb0 rbduvriences the greater momentum change?

  A sailboat of mass m is moving i3pu wx(zxk *hp/ tm--with a momentum p. How would you represent its kinetic energy in terms of *-(hit-k3/ ux pzxmwpthese two quantities?

  If you pitch a baseball with twice the kinetic eneaf 4n7 g+ozrg9 h5anu8rgy you gave it in the previous pitch, the magnitude of io+4n 9zunfg7gr85aa h ts momentum is

State Newton's second law in tp1zr ng 6lr:qx ; 3zd:7ysb-huerms of momentum.

State the law of cony1cd/iu p /xw2servation of momentum.

  The area under the curvb(+odw nfo. 0re on a Force versus time (F vs. t) graph represents

  Which of the following is a* z:.yf +mj2lb6ssjh mn accurate statement?

  A small car meshes with a large truck in a head-ontx3d8 ;5f8lpub,g2k l4+kpq5 c :diiq n*ywl a collision. Which of the following statements concerning the magnitude of the average collision fon yc:5d biq+l p,p8lku8 w45dg axk*l 3i;qf2trce is correct?

  Two equal mass balls (one red and the other blue) are dropped from the s syfr2;i nqry 4m:5x3wame height, and rebound off the floor. The red ball ymrs;x:43 rf 2q5iy wnrebounds 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/s, a3evlgmggi*+, b0 v7;fzyk n4collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling 7 3*nvv4gl0fg+i, ymegkab ; zball 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 mome :hk3odwse4;rntum

  A 3.0-kg object movessby, gm /c )/e(n nexnc1w.f-l to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. /ne)gm/1n ( .l-, snbwcxefyc Which statement is correct?

  A 100-kg football linebacker moving att+ qu +e+ o5qvj+ld w;jsv*r9i 2.0 m/s tackles head-on an 80-kg halfback r j+qr*o5+j vd9;t s+wve+q iulunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisi;t,mmcznyyc : 6j,2p 29vrkaton, if the momentum is conserved, then which of the following statements is true about kycr26; m v9t,pmj2kza:n , ytcinetic energy?

  When is kinetic energymoqns;9:o7 of conserved?

  In a game of pool, tf j,+0rj*xh8rih) m9uiyk p)ohe white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. f ,u8rok+)hi*)9h yij0mxpj r The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides 0c7b)aop3l sc with a heavy exer03l bas)cc7o pcise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right colf:i /u0 zpg-syw 6hstg9+h6yn3dri6opr 4uw9 lides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf b6i h0sy36 sorg9+ppzwtd6-g9w ir/y uuf 4:nhall immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with an ident u xu*xuklq cfb13*j*4ical ball at rest. What is the speed of the initially stoppe*xf14b3j * *c ukqxuuld ball after the collision?

  A very heavy object moving with spbjxofgkg +5 k- (15t9avapqh5 *b(lbieed v collides head-on with a very light objecx+ok 9* flhv51bg-(jbagq 5p5 i(atkbt at rest. 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?

  A very light object moving with speed v k3q,2aa*i jq;cq8hzt collides head-on with a very heavy object at rest3 a,qizt82cj; hk*qq a, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velo)9vdys*8 p rcfubx vgo8r4. b;city of +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 the velocity of the yellowrfpo.8) r 9yub8; xvd4c*vbsg ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very li o6igdb dn +md0, ed..0ja+kloght 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 tjd al d0,dkoon.d6g+eib0+ m.he collision?

  In an inelastic collision, if the momentum is conserved, then which of the f9wlmr/+m)l ozedi8m; ollowing statements is tlzml9mow me rid)+;8/rue about kinetic energy?

  Two objects collide and stick together. Kinevr u3/6 ludn.ktic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It coipnj-irq(w2s8/ (tp9rk e/h tllides in a perfectly inelastic collisis wtqrhp j(8-ki/(2 ntpr9/ eion 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 and sticks. Whic a k6jp:jyy2ow 2y5w5zz9gmw) h object experiences the larger m azwk292 yz5)mo 5yw6:g pjjwyagnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball aj jtb.b//v;xwnd 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 statement ex(0-8i:,izl etbva +dhm+k3kz9v kks is falsediztm+k830lkeak vxh, z eib -9v:+k (?

  Which of the following is a false statement?h,bwu5+of )z s)q rlh,

  Tightrope walkers walk w 2boq*lekl 8-gzrj;; mith a long flexible rod in order to

  A plane, flying horizontally, releases qo.xgz kbp 2. zbjt a/7kg:*3pa bomb, which explodes before hitting the ground. Neglecting air resistankbq3 x :g/.j.72abzkg pot*z pce, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision wq0r5fp(l w xjbwx 0/+kas completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this sy/lx0w(rp0 w 5bqx+ jkfstem's center of mass?

State Newton's second l9jnsf cqu t t.;rip5-)ogj+t 2u5kbc2aw for a system of particles.

  What is the momentum o zj*b0-.zpet07 v jkxzf a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is movingml 5add5*/guq south at 20 m/s. What is the magnitude of its momentumad/mqdug *55 l?

  A ball of mass 0.10 kg is dropped from a height of 12 m. 8ab r cf7:ps*n9vvw r03 usv,yIts momentum when it striks0wpr , :3bs 8rufan7vv*9yvces the ground is

  Two identical 1500-kg cars ar.zk)a2jw/xr a e moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 xaw2a r /.)zkjm/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 3q 438kj+vdkno0 m/s, strikes a wall and k kdo34q+vn8 jrebounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball18x v0bb1vzswfw ; qp;, initially moving at a speed of 12 m/s, is struck by a rac81;v sf v1;w0wxpbzbqket causing it to 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 baseball) is placed on a frozen ponbx bmze aoc14u: x6p- gi z.l54ujx91vd. 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 pitch.p54:a4xz-g9i c mlb b 6o1xzevju1xuing machine? (Assume negligible friction.)

  A 70-kg astronaut is 0fbn : -wkax;y,lj3nd space-walking outside 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 atjafkb,d03-:nxy n ;w l 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 kg0gtlz 1pq;sd,l am d01m/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 magnitude of the large object's momen1ddt0;,ll0 zas1p q mgtum change?

  You (50-kg mass) skate on ice at 4.0 m/s to g*gtt4 b7mty(/5kyne vui3flmo )0s s )reet your friend (40-kg mass), who is standing still, with open arms. As you collid 7 gtmt*b)( ufosv)0 /4yme3knlsy5tie, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right e17 amx38s c0u sebpu/wn)jk.along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass p 3b 8aj)uwn1xe kse/7mc0s.u200 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 cyhc ti ,hlx/1avxsyww ;ok845//f2rzar that has a mass of 1500 kg and they stick together. Whk84 ,;/ rlyx1fw/hsahvt yixo 52w /zcat is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, isy + k hlp,f: e0-y+vlu*ifwt;o allowed to coast along a level track at a speeti:*0ofk-fe;l u++wlv ,p yhyd 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, r6 o6dgrgb ry f-n2uf4k2*,jhdolls with negligible friction on a horizontal track with a speed of 10 n d2u y 66frg4*o, bhdfkgj2-rm/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 be moving after this happens?

  A 60-kg person walks on a 100-kg log wp*gz/kvj +qf th :/3qat the rate of 0.80 m/s (with respect to the log). With what sp kg/j/v*wtp:3hz +qfqeed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The for s3 *kds)9dqmuce suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the objectku) 3md9ss *qd?

  A constant 9.0-N net force alt, s(g6t bn g /lu;ms2.ymya,cts for 2.0 s on a 6.0-kg object. What is the object's change of velo,umg6my2 lls ;a,.t/nsty( bgcity?

  A 2000-kg car, traveling tv jp+ eyhd0s*l qpxv/(s1,cm0 o the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the qm0 hv+sv* ( x,0s/ec1jpdlyp average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball backy( ) ccuhx5 ftd.7-mjj4 3eeik along the same path, and at the same speed. If 35(yxe)m .dftccj4iu ke h7j-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 ont/ b8p1p7z i/blud ywy)kkri00.,niwho 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 lasts 0.15 s, what is the ma1zl/ upr7)hyipb, d kw.0w8/ibniky 0gnitude 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 muzzle velo )a:ch2ue yb) qw*8wkf g):kxycity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted o:bqyw) kgywe u8k2fac h: *)x)n the machine gun mount?

  A fire hose is turned o37ett4ru27fgdu 3 f mmn the door of a burning building in order to knock the door do27g emuuf 3t 4dt37mfrwn. 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 water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute.p+ 6k29 at8wxmr.p kjh It falls 3.20jp 628 xpkr9.m+wakht m to the ground. Assuming 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 aft*sasph, 88l zaer 3.0 s, when fired straight up. What average thrustp 8aa*, szls8h force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer sf1 ohg7 wyy*no,*u;ewpace. They push each other apart. What is their separation after the y,1wno*7y fgou* wh; elighter astronaut has moved 12 m?

  A 3.0-kg object moves k .taak:f8l4oto the right with a speed of 2.0 m/s. It collides in a perfectly elastic co 8ok.fa:k 4altllision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the c6 /xuweir)y nc)8y;r+x direction makes a head-on elastic collision with a 0.15 kg or)x/u;6w ) yci8eyrcnbject initially 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. Tc kgs 49-lzze):nn)w vhe bullet emerges (the bullet does not get embedded in the block) with half of its original speed. g :9wne))v-kz c nl4szWhat is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struc0i 5 do1 xqagdxt6f/a0k 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? (Assu/qi5 00d1a fdtgoa6 xxme the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collidrp,ivl)7gu x4- 6lpea es head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisiog 4vr-l i7xa,ulp e)p6n?

A ball of mass 400 g moving toward tmdt/nq*1n w4*diq7jsed g7.c k sy.x4he east with a speed of 3.70 m/s collides head1i/m7etnq4 d*4n xqkydcg 7*swj ..sd-on with 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 cos++atupod;5 c llides head-on with a 3.0 kg mass at rest. If the collision is perfe;tdus5o+c pa +ctly 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/:bbnm,z7d, h d am(6:+dstz94zt cwzws collides head-on in a perfectly inelastic collision witht(,7c n,sbd:wza6+dmzz9 :zhmd bw4 t a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, trave;, fftrl *)io:i 9l5j)thdvsh ling with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers :dho)l),fj itf r5istv 9*lh; lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 4 qrw(wan fo;6x6uz*2fzy ft:hm5 h 7lt+ hbr+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 ven4u tfzhh6oy5; r ax(tz+q l 7f*f+wb:h rm26wrtically 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 avk x2e68bs43rkv i8kr3f0bc2nek z k1t 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 the3 xk k61r4 8v3kk0fc sirb8b2ve2znke cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car trm8oe ruw1,qx 9aveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig.erx1u89,qo mw 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a leveq au-sljki5) hpvpn8 e)* 1hp4l frictionless surface. 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 collision. What is the mag)i*hp4pjl8a1ek q 5ph )-sunvnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, i a8sadas8cd jn:rd 06og);9sps 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 sad0s 9ad 8:8jg rd noap6s)c;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 = + 2m)m1s 3 kf ujc-qtra64sdoyna s+a92 +1.0 m. Where +os smmtkaa)62 f1- 93 snrq+ ucad4jyis the center of mass on the x-axis?

  The center of mass of a two-particle cvixe mp*.(9 h:yt 2c lwa*ah2system is at the origin. One particle is located at (3.0 a*h:ec pah9l viwm2ty*2 xc(.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 khr3rb9)+ir f(2.0, 0), and 4.0 k ir+)h9f3brr kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate/s )b:3nt be+bgcyoh7d at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respective s bc+e)7th/yb3:bgo nly. What is the location of the center of mass of the system?

  A 3.0-kg mass is posmav3dc-0 u3viitioned at (0, 8.0), and a 1.0-kg mass is positioned at (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 masses being luv-av c0imd33ocated at the origin, (0, 0)?

  Use Table 7-1 to calculate the positi25k,xz -u6dv*b+ ap+axb nzpnon of the CM of a whole leg including the f5xax vpp6na * kb +2-b,d+uzznoot when the leg is stretched straight out. Assume the person is 1.60 m tall.