What is the SI unit ofhy+f*rk7 um*q7i kp-c momentum?

  When a cannon fires a cannonball,7qzybzg.:q w(t q5 k0d the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at consts)vnp 8f:o p;oant speed. The car is open on top. A large load of coal iv;sonppo:8 )f s suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sleddingz k7r*7m sk)px on frictionless ice. What happens to the velocity of t) 7 mkspz*xr7khe sled?

  A rubber ball and a lumpxa yz(*2e tv-a of putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back wit2aztx (*a-e yvh 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 would you represent itsqp ,cb)tcm)h, kine)hp,mtcqc )b, tic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic en.y*jnx+h pzzug(va ( )ergy you gave it in the previous pitch, the magnitude of itxz. *+g) (jhypnvua( zs momentum is

State Newton's second law in terms of momentum6 n9-kny 8mipy.

State the law of conservation of momentu;ve7u j6b xvsv.d(g4wm.

  The area under the curve on a Force versus time (F vs. t) gwa ha ox4 )ooo*4dt./xraph represents

  Which of the followingvqabh(nn //ync mh8:/ is an accurate statement?

  A small car meshes with a large truck in a head-on coll;f-f ix. mqu6 op4(tmxision. Which of the following stateme.4 mp 6mxfqt;oxiu-( fnts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (ongtu ee3i7 xz,3 qg-, a4m f:m5wkd+appe red and 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 magnitude of impulse durpmfwz,gxqapu5e,k:a 3ed7i 4m +g t-3ing its collision with the floor?

  A Ping-Pong ball moving east at a spee m8sq-fplct9zc4s9 g:x*k m t3d of 4 m/s, collides with a stationary bowling ball. g tc*fqt4m ms9lk -xcp:8sz3 9The Ping-Pong 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 bounce 4ublut2nv5 z) off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a,q)hh.z:e a yu 6.0-kg object moving to the left at 2.0 m/s. Which staeha y). :zu,hqtement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackle,1 -sahwnqs ;ss(xskzs id+-)s head-on an 80-kg halfback runnixs1,- sssnkhzd;)sqa -(s+ wing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, r/:(w.l 6ctaq t2xxslthen which of the following statements is true about kinetic energax(tscxlw: rt.q2 /l 6y?

  When is kinetic energy co:nmpjnifb4a6m (w8g lu xr --8nserved?

  In a game of pool, the white cue ball hits the #5 ball and stops,j)k ,az6pm*vb2w8o3-ii oeoz while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision iseo,iov-biwo)ak2 z 6jp8 *z3m

  When a light beach ball rolling with a speed of ofs ;02 dniw/u6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed i2u0/w ;fnd soafter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to dex- ,tr (uy(lthe right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is adtr((y ,- eulxlmost 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 head-on elastically with anykqfn:gm u; cyg3(r5 u5 g +s/:sc6qyn identical ball at rest. What is the spee+s qcyr5/: ; ug3my: fuq gscn6(kyg5nd of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on withy.nxtaacx1knxq 2 j1:gq p8., a very light object at rest. The collision is elastic, and there is no friction. x8npjnx:x1 1,qcqg.2a. aykt 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 with a very heavy objec u7ffr (wdhsng,by h6 vtu*ui8w5w. 4+t at rest, in a frictionless environment. The collision is almost perfectly elastic. iy( gud8wb, hv6 7r+.stn*wh54 ff wuuThe speed of the heavy object after the collision is

  A red ball with a vegd 4p*tu:) nhrr/y. nllocity 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 yellow ball afpn)dtn *:g lr/y 4hu.rter the collision?

  A very heavy object moving with velocity v collides head-on withhik6 f 5p+ge/ uh)pivqmg-8cao )rml6 6:x9gq 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 coll/k+u9 haox iq6:e-pl)5igmvhp6qcm rg)g 8f 6 ision?

  In an inelastic collision, if the momentum is conserved, thu39) mrf-j mnien which of the following statements is true about kinetic energmu j)3-f 9nrimy?

  Two objects collide and stick togew:.jr1s6a bp-m wcj+l t,y ax/ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect jqah: uq5gu,w5hl 6ns16aur7ly inelastic5a:w 7qugj5u r1,hquanlh6s6 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 wism z j9p-v6 xpflz6k09th a large object and sticks. Which object experiences the larger magnitude of momentumz690flp9pj- z 6xsvkm change?

  In a game of pool, the white cue ball hits the #9 ball and paqg dldg :w/4r m64b9is 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 thn t :+1c: f)5 xhtovzxd7c)7g8w ftptne following statements is falsegvw 8)+:n7tt1t)p 5:cfd t xxhzof7nc?

  Which of the followingj*.y- gbp5ycc is a false statement?

  Tightrope walkers walk with a long flexible rod in order (r6jvbo lo8cjk3t-)q (1f yl uto

  A plane, flying horizontally, releases a) ( dq:qlz6khz bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just l6:)zd hk(z qqafter the explosion

  Two cars collide head-on on a level friction-free road. The collisi /p8 8/cy zp+mqqxa4fg7 svhv8on was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's ce p/s/+q8 zcfqxm4avpvh g878 ynter of mass?

State Newton's second law for a sum0a-p)v1 xpxuw ueg* t/ )o)uystem of particles.

  What is the momentum of a 2000-kg tv4 luj fhfh/4 2tnrvcf :s4l..ruck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Whav*7;ig( s,0,wjrhjds t) izwgt is the magnitude of its momsgid ,ijg )7(t0wvzwh*, j;srentum?

  A ball of mass 0.10 kg is dropped w;)y lzbtl4)s from a height of 12 m. Its momentum when it strikl zbsl)w ;4y)tes the ground is

  Two identical 1500-kg cars arak+kiif ),lb r 5dl;/ee moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of ;dra ibi)lfl+ek/ 5,kthe system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall and+5+t gjgaf8 bg rebounds at 24 m/s. What is the changejgt+fa b8g5+ g in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a spee/h4pl +.u aflqkfe s81d of 12 m/s, is struck by a racket causing it to rebound in the opposite direction a8/us 4le+l1 . pffqhkat 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 pond. ql3* y jz-t u0p73l67cp biaejThe machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal dljali uytz qj37c p7 063*-epbirection. 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 stationary ( tza w96)ao( ocb1wvzwhen 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 mov 9w)(czvoot(za 16ab we toward the capsule?

  A small object with momentum 5.0 kgm/s appr7a0wak4 1kkp6ff 7owv oaches 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 lkk 740 kafpo6v7wf1wa arge object's momentum change?

  You (50-kg mass) skate on ice k 8:zw m,k3klqat 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holdkw :kzkq,lm38 ing each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a levj3:yhl-s1 e *5l8fp. hvszsss iv vr9)el, straight road at a speed of 6.0 m/s. It collides directly with a stopped moto9r- vl):1hz5vls 8ef v jsiyps h3s*s.rcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the ++kqe c xm/pq4rear of a stopped car that has a mass qe+/+cm4xkpqof 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 tu1gt:f ,6j2 yn5 osbbkg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially 2n,b1:to 6gf 5b tuysjat rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with n i6t2hls pr :l61q4ssn.zm3.t rox* qfegligible friction 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, and lands in the car. How r1.li4 szqh m spr*s:olt 66t .qn23xffast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the ratq/ sv;capllli19co/2 e of 0.80 m/s (with respect to the log). With what speed doesl2 liv 19 qcao/p/l;sc the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force cmu 1: ;xv.pybsuddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces toxpc: 1mv ;b.yu the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0b blb9zfq: 8li/okq;+-kg object. What is the object's change qq9+:bo8;b ikz/fb llof velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall0sk watyx rh;.*,(bm t0x :etj and comes to rest in 0.20 s. What it ,0wxs;( t.mhjt:kra 0y *xebs the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Yoay i0akl wo2j-hwl02 +aa8d*iu hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, wk+*20j lw8h yd0 wi-iaao aa2lhat is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speedammg 0i02 r 2rgt0u:pns 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 colli0pn2ut2 rrimmg 0ga0 :sion 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 58fhum-7j: quzu+u l .8)gmim;v vw1qk0.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minutz hm81:uf.m8i gku+wv)qv qj- u;lu7me. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in ) osotr j 5vhmpl.z-tk;y;9v3order to knock the door down. This requires a force of 1000 N. If-m sr5kpy3 ojl;t9. zvhovt;) 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 horeck4m q4(je ,rizontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doem 4e,(ce4kqjr sn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velj4ah 2 7bz-ku:lucm w5hp,sb;ocity of 40 m/s after 3.0 s, when fired straight up. What average ths5b uu p-a 72;:w4jklmc ,zbhhrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at reyufj(v j-a/97 ) gmdbwov6f 6bst in outer space. They push each othed 97fvoj6 ja )/-b wu(vgmbfy6r apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right witi ncf ih1:.uqac-.ec 0h 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-. i:cn.cfi qahc 0eu1 kinetic energy after the collision?

  A 0.10-kg object with a velocity off wdwteg ;z)8gg2f7b) 0.20 m/s in the +x direction makes a head-on ela)7 gd;gwfz 8etg fw)b2stic collision 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 moving at 300 ;nti6 c4 b7lpq6p a (i6hi;ublm/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.(64t luac; iib 6ppqbl6;7 nih What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by t 1rkzsf5s7y+p o +,jyan 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? (Assume the ne1,otysj fsyk 57prz++utron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with-xf,xi4d i qi4 a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately 4x4-xdfii,qi after the collision?

A ball of mass 400 g moving t9unwt:fjjj 9zc,f.om :6;7lf w0j cbtoward the east with a speed of 3.70 m/s collides head-on tf 0:u j,w9c jof.z tl 97w:jmn;bf6jcwith 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 collideaw ;4mcc;w(9 rtr+lgas head-on with a 3.0 kg mass at rest+;clrwt( r4;mgaa 9cw . If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east atv dl p55t9ohc.orkx9 8 a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. . v5 tl598oprhcoxkd9 How much kinetic energy is lost during this collision?

  A car of mass m, traveli33dtag;m9ludh . 4xg eng with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock htmud .34e3axg9gld ;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 m/s in a vertical direction buries itself in a 2.4cfjor:q m2z2 ;r mu2j)lj77 ma-kg block of womr7 az:fj2);m2 jrocq um7jl2od a rest directly above it. 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 east collide4tv7ehvrji 11 s with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together 4vjvi71 erth1after the 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 car travelitx.p2j p wh u24viwz 9 )clun40*rh5urng at 60.0 km/h south. The two cars stick togetp 925p0)xu*rwiujv l 4r4ch. thwzn2uher 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 cee(+r.o1+zj3q;pwdyr u j7dsurface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make cqju 3yozre red+wj.( 1pd7;+ a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towar0 psdwv ,5z/4 lra hdf9jh0yg3d the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-dpwa5/fv,gl j4dzhh 3s 09yr0kg 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 friction.)

  A 4.00-kg mass sits atdepqu.b;jh 7+juhx33 the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the cent. epudxh3q3jh7+b; juer of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. On6ffm *vo, nc/: . zi6qzjjtrx1e particle is lor mj6 zoj ,tqfv*x1nz/fc :6.icated at (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 foo)0dhryr h275ify r1t llows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determinr )yt20frrio5 1dhh7y e the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0vo(ods :e u;*u), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively*:vo;so duue( . 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-kgqte,*uv7gb+e ubh0 f kfk4j+6 91y koz mass is positioned at (12,9bk +fqo0byu ,jue vh 1t46k+ge*zk 7f 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 located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a wz1qyl ir58) u yhc l2i4n9mo+chole leg including the foot when the leg is stretched stra5h 4l1l9quryn i8c+i)y2ozc might out. Assume the person is 1.60 m tall.