What is the SI unit of mooz6 (b4t4i mmj:9kw5dzzg +rg mentum?

  When a cannon fires a cannonball, the cannon will recoil backward hl86lw/cx*, xnbu ji7 because the

  A freight car moves along a frictionless level railroad track at c0qcbm+xe9i g +onstant speed. The car is open on top. A large load of coal is suddenly dumpedi +0 qx+mbg9ec into the car. What happens to the velocity of the car?

  A child falls sideways pzop2uv3hy )hb;+ kx5off a sled while sledding on frictionless ice. What happens to the velocity of the slek3yphpuz;)x +5o b2hvd?

  A rubber ball and a lump of putty have equal mass. They are throwxi 7/tm que/q)y; 5 xn(r qc3de/lfhj*8fpz;kn 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 experiencespit/)e 5ezrf ;cxm qld/q *3k8(ux7jfy h ;/nq the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you repr:b,q wmt08+q r7 pbkgwesent its kineticg:q0kmqbp 7 8bwt+r w, energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the lesn//):yw xm previous pitch, the magnitude of its momensnx)/ly:e w/ mtum is

State Newton's second law in terms off8(x8+hg jq64gobfh g momentum.

State the law of conservation of momewu 6w5.gid ck:ntum.

  The area under the curve on a Force versus time (F vs. t) graph rewtjlu8 17 2,okb wn6ss(d,jf r5 n5ycnpresents

  Which of the following is an accurate x,ol+temr* ly nom:j4092 jfmstatement?

  A small car meshes with a large truck in a head-on collision. Whioxds iyfn1/es/s (0;lus3g+ich of the following statements concerning the magnitude of the averui+ n/ s3 ;0dso1 fesl/y(xisgage collision force is correct?

  Two equal mass balls (oule8o:25 3 k .pyuxrdtrk97dine red and the other blue) are dropped from the same height, and rebound offk .x ld3rruy e d8uo72k9pi5t: 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/s, colla8hbr)v9x f6 qides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very sr h xv)fqb96a8lowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bou-r v8. hzrgq*khxhsv)0 u xg0:nce off each other. Linear momentum

  A 3.0-kg object moves ,n6(bhlm os g0to 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. Which sts6b(hnl0 o, mgatement is correct?

  A 100-kg football linebacker movingnu9gl,itl , -j at 2.0 m/s tackles head-on an 80-kg halfback runningjtln,-ugi9l ,
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 the fg-p0hi1 c cprtp39. dvollowing statements r9v.pi g-1h0p pdtc3cis true about kinetic energy?

  When is kinetic energy conservedd8 g y*pqf)o+c?

  In a game of pool, the white cue ball hits the #5 ball and stops, whit;s.s*k mcl)kg -y 8ebdd1e)nz(tn x.le the #5 ball moves away)d1tezbk;g . csk(l-*nt e m.ydn)8x s with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed ofcgke/d7, )kgqu ug +y;)gklg2 6.0 m/s collides with a heavy exercise ball at rest, the bea;7c, gkk yk 2ed uugl+)/g)qggch ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the(sb:uvw w3r 8d right collides 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 ball immediately after the:vw8 br3 du(ws collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically withdd 8 oy*gt.x. 575+-fmcvt2fa ; hfd /zuhazpw an identical ball at rest.7dofzdxyfah uc5hf ;t w8-/a+z. t 52vdpm.*g What is the speed of the initially stopped ball after the collision?

  A very heavy object moving7a*lw y-wr en6 with speed v collides head-on with a very light object at rest. The collisiy6-r*7 w wlnaeon 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 collides head-on with a vhl943j3wxh n oe:ild*ery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the colliox * niw4lh:l3 d3hje9sion is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of eq0wzj0rvir0cm ,d ycwvt:k 6*9ual mass movin90dmtkvjcy wi ,v:0 z6w*rr0cg with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a b9 g0 xx4;wuocvery light object moving with velocity -v. Theb;9u cx w4og0x 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?

  In an inelastic collision, if the momentum is conservei0.el fig/ kn2d, then which of the following statemen 0g nife2/li.kts is true about kinetic energy?

  Two objects collide and stick together. Kinetic energ6.jrs4xa6m, fh3jdl py

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perffl/pknjxtr *eu.l ,d;7; xf d2ectly inelastic collisioerp*l,2f7.uxd; jxl /k;nd ftn 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 obwkrp3 tsen2a4*p 6we/:4 8pnvqdfy c-ject and sticks. Which object experiences the larger magnit2tn4wy ek/ :v-f*c8e 46aq dp3nwpprsude of momentum change?

  In a game of pool, the white c1f-v ; uacaj ieoul202ue ball hits 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 statements is fa)m7:ofh8kkmc yw/ xl 4ls ho48wm)k/l7yxk: fmce?

  Which of the following is a false states fw b3s s*vzl,-2lk04t5hqpement?

  Tightrope walkers walk witz i/+qucxd2yb54), h7d px rtot(tfu1h a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which e;qj7h7x 6pqph xplodes before hitting the ground. Neglecting air resistance, the center of mass of the bomj p6h;pq7hq x7b fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision .wh o4zzv hypae 8h;kq3c5-3bd1 oe8hwas completely inelastic and both cars quickly came to rest during the collision. What is true a ;hw8phc-zvo5 1b. hdqa4k3 8e ye3hzobout the velocity of this system's center of mass?

State Newton's second law for a system of ;bra+sdp -xyyj ju01r/;xzk8kn l06 gparticles.

  What is the momentum of a 2000-kg truck travelilr i-ku).q 6/ wdcxsjrm4ln( 6ng at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is thkpz,o34 gy 5e1- qwbccck yh64e magnitude of its mom y6p5w g 3e4,1ckhoz qy-ckb4centum?

  A ball of mass 0.10 kg is droppn 3(iv(+ pkkiqo4la-p)tztp;ed from a height of 12 m. Its momentum when it strikes the ground isnpo) 3ii4z(-ktapt(pk l;v +q

  Two identical 1500-ke *yz-c*lye ./uuz(rcg cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other mol/rz.cu-zyc*u ( ey*eves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travel s25fg6:jy. 9ipot utsing horizontally at 30 m/s, strikes a wall and reto 2s9:s.p tfu yjig56bounds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moviq+ a4w xw(b31cpv1 jfing at a speed of 12 m/s, is struck by a racket causin1bf+1p3j qx( v4ca iwwg 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 basebaeho ;r7phc*f ,to1if t/(*thxll) 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. Wha(7xt/, hieh ho; tto1ff* *pcrt is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outsigc,3u.m4i * 6ps o8gldf( mwuide 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 capsule. At what speed does the astronaut move toward the cap .p wl6mf8u*oi4( g cmg3,usidsule?

  A small object with momentum 5.0 kgm/s approache0 .p( uzaxjq/ks head-on a large object at rest. The small object bounces straight back uz.xj q/k0(pawith 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-kg mass3qap dbh u i8/,zbh 71chmo8i 2xiq74g), who is standing still, with open arms. As you collide, while holding each oth cmbqhib/4dx71hu3 8 h8 qzo, iia2pg7er, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road at a 7.j2sv5 -ux(bnykcs g speed of 6.0 m/s. It collides directly with a stopped motongc7(v-x. suk 5sj2y brcycle 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 stopped car that ha 5)hmm u(hr.fms a mass m)u.5( rmhfhm of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to ctjcwzsv.+: *11(ki-ezh uvinoast along a level track at a speed of 2.0 m/s. I(-w:itnc*s uj 1.kz i+z1v evht 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, rolls d:y2 .foeyy0f with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt maf0.yoyy e:f d2n 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 at the rate of 0.80 m/s (with r2a,oi zlfy /8/fj8s te50ghxkir b4u5 espect to the log). With what speed8xe5ohkusyt/2g0,5 4jliar8/b fzi f does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly iuf3-u/wf i/arap-/kq ncreases to 15 N and acts for one more second. What kupf wq/r-/ -aa /ifu3impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is ta)m i 0ihtu.e efmlmn1lu( ;v6)s v d)up-46tthe object's change of m4l.ve pnfmai6ht)-luvttum) ( ues) 1 ;0d6i velocity?

  A 2000-kg car, travelinge22f13 k bjhsgpn3 4yv to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. Whay 2 31hjnsk4v2egb3f pt is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the balu ahfv2,gv 0gi2j;da2ey4u3 l l back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magnitude of the avegigje22aluah0 yvd4v;3u2 ,f rage force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right b. 0blyt x cfd)m0l54laefore and right after hitting the table top are 5.0 m/s yxb tlcd00l)m4f.l a5and 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 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity ujys1v eqj0kir7. z;,x o5ydm4-r+fu of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on5ukfq;e. s07 yoxjrm+ z-yjvri4,d 1u the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock the do1/fywq)(b2qpbv: 6kw rcurh 7or 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 water doesn't r2bc )w:r1yqv pwq6h7( /ub kfbounce back?

  Water runs out of a horizontal d4c;yd mv4p lr;a pq3m9rainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the wate94app4cymrl;mq3 ; vd r 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 3q( gi5:q 9hqxn.0 s, when fired straight up. What average thrust force does the rocn9h q :q(q5ixgket engine exert?

  Two astronauts, of mi.qi r,)cd h a-;np9jtkya4h)asses 60 kg and 80 kg, are initially at rest in outer space. Theidrpcj) ;ka.h,a -9 )4yhintqy push each other apart. What is their separation after 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 collides in a /swdxq ;y hs(*mu3c zm-.jj5 dperfectly elastic collision with a 6.0-kg o sy3z m;wjds.-q m/u(h*jx5 dcbject 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 5;;u;ktwl.d awf bf1sof 0.20 m/s in the +x direction makes a head-on elastic collisiokfft;as;.db1u 5 l ;wwn 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 m/s is fired into a 1.00-kg )oc actn9 7z(oblock at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original)zca n97tooc( speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest o km;qes4xp-0, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely ;mes0x4-ok pqelastic, 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 +10 m/s collides head-on with a stationary bal,jm nm x2f: cnvkvh-6:l of mass 100 g. The collision is elastic. What 6 fnk2hj v-mm,x:nvc:is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of iyaghhrwd ; d )*ba7.;3.70 m/s collides head-on with a 200 g ball sitting ydgi rh; ).hbwa;a7* dat 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 wicx;m8bwz x-( zth a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectl( z x8cwb-xmz;y 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/s collides head-on in a p-(i:aqmbn) g r ;7rimrerfectly inelastic collision with :)inr;(7ir- rbmgmq aa stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocitywfjanr+wnvyq7cd ls9ku 1b:89;sl 7 / 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 u aw1jq+9d n; nwlk8v7r: y s97cblfs/initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a ver.n2d79 t.tu ye*yn judtical direction buries itself in a 2.4-kg block of wood a y. tnyj*e2d. u udnt97rest 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 90.7sn1m)mus.l+)x vs p 83xxd ox0 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. 78.dxo1s)u3xxxv mnms7 sp l+)-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east colln5n/3 r tglzrf/kp v zdc1 b3-z-kzi(4ides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the colliplng (5z/tvkzz d-1cr b-3/nk34zrf ision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frict f4gx.-o:*j(rptn -f4txco iq0e-pmpionless 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 magnitude of their combinedto p ncf.p:o( j-rex ti0gf4*p-qm x4- momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward t;xuf1,dn8w pzp f,wg1he 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 fra ,1;1 ,uf8wngdpz pxfwgment 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 the origin, and a 10.0-kgni g/r0olc:6d5 6 63m 9lntgjirr f4bg mass sits at x = + 21.0 m. Where is the center of mass 5jg : cgfdr0 r9il6nt6gr4 bi/nl6om3on the x-axis?

  The center of mass of a two-particle system is at the originmw4 *uh((gv tja0xs (z. One particle is located at ztm x*(sjv 0(ahu4w(g(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 positi*qbjwrbd(0s : oned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the:bs r*d (0wjqb coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatet/zf+/oqgp b3uwd9.f - w)rb ud at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass-g/ +twfqd fwz r3b.o9u/p)bu of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at q 9i :urwex 7+ucbuv02(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:+qubx iw ru7v uc0e29 being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole legj ze7fp8xf;-h including the foot when ;xpj7h-e ffz8the leg is stretched straight out. Assume the person is 1.60 m tall.