What is the SI unit o;( v4*lwqj 5 nnvrcly+f momentum?

  When a cannon fires a cannonball, the cad9, orduk i7o,nnon will recoil backward because the

  A freight car moves along a frictionl) g) t+.ysk.ng4kgkyu ess level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into th4sygg ygnk.t)ku) . +ke car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What )ko2,b8kpeyuaip,1d happens to b8 pap2,ueki,)oy1 kdthe velocity of the sled?

  A rubber ball and a lump of putty have equal mass.(t -+vyi(k21 d+ooqrl uplt5g They are thrown with equal speed againd( igk2o- +yo1 (rl5tltupv q+st a wall. The ball bounces back with 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 represex 9(xib4xqn1o nt its kinetic energy in terms of these twoi(4nb o9qx 1xx quantities?

  If you pitch a baseball with twice the kwguh; 6yyer -xu ;x:v3*vy2 sainetic energy you gave it in the previous pitch, the magn:rw xg6hvyy3e;xy-av;s uu 2 *itude of its momentum is

State Newton's second law in terms of momentx;uz*w3 2ml i0onxx c,um.

State the law of conservlim)o;ayf +4 zation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph represen 1-/wkooywz(0quwc : m(ht5c qts

  Which of the following ispg-2wz kk w/zce43xg9 g+h(pf an accurate statement?

  A small car meshes with a ljdub(:/w:e u iarge truck in a head-on collision. Which of the following statements concern w bu(/uijd::eing the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same hmb bcs qbbrxb.hz1+( et0v:j+puox;*i w)(3f eight, and rebound 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?0oz:utwm3jv+cx1e+*p .(b)b ;b ( ihxf bsbrq

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a s:g854 n+ ng lv,gj so+l6r,fmd:utvtu tationary bowling ball. The Ping-Pong ball bounces back to the w 4dm+ ,6rv gvosg l:5f,tl:un8g tj+unest, 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 off each xuylqj + *kgg w*a8 e04xtf9(nother. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It colz8ae,rat; yoo p* 4gama3(:zuku -um3 lides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is ,yu3u;:kz3zg*o a-4amrp(e8oatm u acorrect?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-v tsad2 3iqx fy,7l(3hon an 80-kg halfback ruhtx3273ylq , svf( dianning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which iz4;yc ;jwdr.of the following state d cj;r.;wizy4ments is true about kinetic energy?

  When is kinetic energy cons;2eqsec 0wz ,oerved?

  In a game of pool, thlp -mj/b,jz /) qc jx.tzm(vd.e white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as th.bzm./q c(x/l j j)-pdz,jt vme cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 b; 7j7nazmye6m/s collides with a heavy exezye 76 an7;mjbrcise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/srfn ey;5p+28m rnnij+ to the 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 spe8njey n+2+ fn;5prrmied of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s coll6haoec2i0bbvjxp5u.c;/ cql o*uo/. ides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball auo. aq .h x6*e0/;ibclo5o cvbju/2pcfter the collision?

  A very heavy object ri:ouq0tj ueim /3 ate)9gx:7moving with speed v collides head-on with a very light object 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 c:: 3)ae/ utt0i7xroj egmuqi9 ollision?

  A very light object moving with spe *u xi*)+n;wjd4i5tq,pz ,vja( teunsed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of thjvn5,u qe(t*, +*ps4t)jnzwi i;xua de heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow b: l r)k* eoh52e msaqb7/ahbtnv,yh;;all of equal mass moving with a vna ba h,hvr)5y/eb lh;mq;7to2*s e: kelocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v +bl t3j 3km2poakzu:) collides head-on with a very light objecl b 3a23mj:+ kz)oputkt 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 collision?

  In an inelastic collision, if the momentum is conybs7+4ld2 wwe0nl*g i2kfo4 oserved, then which of the following statements is true okygi2 *ew4fs4 0b2wllon d+ 7about kinetic energy?

  Two objects collide and stick together. l -wkp*qulhq- (o0 o,rKinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s.9oiar1.pt 1 v1t2j xux It collides in a perfectly inelastic collisioj2opx1.i119tv xr u tan 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 la)s kwycdy*5b.a pf26 arge object and sticks. Which object experiences the larger 6.*)b w2asyy5afdpckmagnitude of momentum change?

  In a game of pool, the whitetb-e 7u mq b3my,0nn1w cue 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 followi /bm .-zjixll+ng statements is false?m. x/b+-lli zj

  Which of the following is a *j3ib*xniudbq -p0qp+59ve bn n2 tz2false statement?

  Tightrope walkers walk with a long flexible yg06xj 9ony 8g;,ynji rod in order to

  A plane, flying horizontally, releases a bomk). +twciht. :,lq evpb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the exl:pw . c) ev.i+thkqt,plosion

  Two cars collide head-on on a ler/p6 mpu1t/5 /y9cvz q7pzrb(yd pe +yvel friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this syc1y +6y rb/pmzprtd/57uzp/ qp vy (9estem's center of mass?

State Newton's second law for a system of particles.2aic-ug :e lsu /+b3sas 6/obh

  What is the momentum of a 2000-kg truck trbcrra 6rau ew.+t:upc(-uy3i ( c ud*,aveling at 35 m/s?

  A 1200-kg ferryboat is moving southcir1c14v+itiy;v e l 0z3 m5om at 20 m/s. What is the magnitude of its momen l34ty iri051 mo;zc1ievcvm +tum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum wh,da;l0 mq4vov; y9yu oen it strikes toolv; 09u,qy;vy4mad he ground is

  Two identical 1500-kg cars are moving perrr ocpkp jhgr 0/r/ h;40x2vc)pendicular 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 the ;pchvr /hpx / rcj0 2ko)rgr40system?

  A handball of mass 0.10 kg, traveling rse:3iidf zcjn4.1*7.xdm ss horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the ch r. fnji1s4:7msid z*sdex.3cange in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struibudfhc; 9zkh .(.v x9ck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is hdu9(.h kixfc9z b.;vthe change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen 9+/4e8a 468bitp osaixhvq: .xa c hglpond. The machine fires a 0.40-kg baseball withocxt484h .xvaip 9h:qealb6g+ / 8as i 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 spac am0+vp/ h7zlqe 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 doeslahmvz7 /0+pq the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches he 0hhxkqw5yr d;q )7;ufad-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 lar;xqqf7h;w k u ry0)hd5ge object's momentum change?

  You (50-kg mass) skat9v5 q;qbcwc7ueu b1-be 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 sp97-q1 eb cbc 5uuwqbv;eed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, stztx08 rczc) psh ai:3)raight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle ofst3 )pizz c80axrc:h) mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/gw3ne*bj- vq1+xus -o s runs into the rear of a stopped car that has a mass of 1500 kg and they stick togegqbo3 + vxe-j1s*-nwuther. 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 )n)y.f rd8jb2zdc jva*.jl * gtrack at a speed of 2.0 m/s. It collides and couples with a 50,00f*8 r.lvc. jbj)g2 *ajdyz)nd0-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 with negligf* 3 vj 0yv**y6nlwxvxible friction on a horizontal track with a speed of 10 m/*y0 * vvxwvfn*j3lyx6 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 at the rate of 0.80 m/s (mqy,lz759 ho lwith respect to the log). With what speed does the log move, with respect to the shore?oy9l,7 ql5zhm

  A 4.0-N force acts for 3.0 s on an object. The force suddeiv06x 89 ojf6. ufkh 1eq0vekvnly increases to 15 N and acts for one more second. What impulse was impartejv0k 0 8kvuqv. h6iox9 16feefd 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 p+i 3mpy8yz, uthe object's change of velpiyyz, pu+ m38ocity?

  A 2000-kg car, traveling to theseh-e9vq8qytlw.4grm. :es n0udr0 1 right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wa1sy 0.-0qnerr.esql8de wt49h m: gu vll?

  A 2.0-kg softball is pitche:c51ob /rcdxcff7aif es,5/ w d 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 ball for 0.10 s, what is the magnitude of td71b xoffciecw a:f 5cr/s5/,he average force the bat exerted?

  A 0.10-kg ball is drofhlxz/82l x -opped onto 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, respectil8xo hx z/2-lfvely. 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-y zjqpvlx /2qwi.+.g(+3a qzh,vl5 d lgram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount ,h.2d+jz(qzq+vql i.v yalw5l3x/pg ?

  A fire hose is turned on the door of a burning building in order to knock tgk82*z7 8kj5j f evfrihe door down. This requires a force of 1000 N. If the hosekjfgvi85 ejf*8rk72z 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 0gli7 (ane:gm 120 kg per minute. It falls 3.20 m to the ground. Assum(ea g0:7m gilning 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 velo,vfhpe(kg h(mv+w 3x((ahk 7x city of 40 m/s after 3.0 s, when fifhgh p,vka(x vh +7 wm(3ex((kred straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of mas fp -u0vv-xh4plv; (flses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separa 0 p-4vp(uh-vlxf l;vftion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the righpvtdz /ne33j(313,oca zo rpi svmz(8t 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 the total ki(tvo zzvi31jmd rp 33ap/z (83cn e,sonetic energy after the collision?

  A 0.10-kg object with a velocity of 0.2cxzx . jg)d:3m ps5ez90 m/s in the +x direction makes a head-on elastic collision wis zxx3j)zgd:. ecm95p th 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+t esw10w4ig*tmk (e7;rfxlq4k wyf 5-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 the block right after the collision?47; lwqsr1+efew f0xtwgt ky mi k(5*4

  A proton, of mass m, at rest, is struck head-on by an a aj o63+ng5rnflpha-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 neutron's mass equals tj+r a3gfon6n 5he proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary/t4apqde4yr*lkbd t wv vu-qyu+136/;rtt c 2 ball of mass 100 g. The collision is elastic. t;tc1*ky a r4vu/4/q w3ut vyr-te+ dd6qbp2l What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a s3 eymxfaa 91zi tka/)1peed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfe1a3ek/z9a1 t mifaxy)ctly 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 wit0y6 c ov)rno0wh a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If th 06r)oo ynvcw0e collision is perfectly 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 grdv / +l( -rk-6c;2d)rs dikgxf,ayvcollides head-on in a perfectly inelastic collision with a stationary 2.0-kg massv+yvg 6cg(2 d d;-k/rfkx)-ra rdis,l. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikesiwq ey0mj e(u),9l4cxtd 7ef+yy8 6tf a parked station wagon, who's m4uey,mtft9jd 0 f ixl7 ce86e()qyw+yass is 2m. The bumpers 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 2 (mh-at; db3dj13 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 combinajtdm; ab3- d(htion 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 collifz)cw1 x1svirv x2aw n36j w//-1pnvvdes with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after tv/i ar1ww vpj)vnw-/1 zn2xvs1c3x f6he collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.bjj.t p a.ezq)39s4c m0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togethet jpsb).a 9 mqze3j4.cr after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level fry+uh8om6jtt :x s8z3o ictionless 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 combined momentum after the st o z8:oyh368jxum+ tcollision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of mgdh 6dj7; zc(4.0 m/s. It explodes into three fragments: a 5.0-kg zh(j;gd7 c6md 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 at the origin, and a 10.0-kg massympm5z ac(k1b. 1v lc6 sits at x = + 21.0 m. Where is the center of mass on the xz5 bym1(6.cp ac k1lvm-axis?

  The center of mass of a two-particlut 55zqy h2hy:q o/u:u+xu1oke system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 o:y+ oq k5/ q1uht:2zx5 huuuykg?

  Three masses are positioned aw:z:s +u-i;(dvve flu *k1eeq s follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kw uv +l:k eieqvs;:e(-*ufzd 1g at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kgp 5nn/4u7.lqdb bev0gjz aw37 , 2.0 kg, and 3.0 kg, are located 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 of the s7bzlv 74b/uwpna.3 egnj5qd 0ystem?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kgx*0vh r6kbl-f 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 syst v-h0 frl6xbk*em of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the7i m v4*x o96peh2nphm CM of a whole leg including the fooe72 mxmvi*6h9n4pho pt when the leg is stretched straight out. Assume the person is 1.60 m tall.