What is the SI unit of momentu(mut97exoi h .m?

  When a cannon fires a cannonball, the cannon will recoil backward bec+g09fl xk uw1eause the

  A freight car moves along a frictionless level railroad track at constantkl+if( ijg/e0 speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?k(ii g0 fjl+/e

  A child falls sideways off a sled *7kjh;he)v el while sledding on frictionless ice. What happens to the velocity o vkl7*hjee) h;f the sled?

  A rubber ball and a lump of putty have eqc 7uim pa+,/;1w8bodshlqm k3 ual mass. They are thrown with equal speed against a wall. Theip,bw/3 o; d8+kml7sma qc 1hu 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 agrf+3:sd p6 up momentum p. How would you represent its kinetic energy in terms of these two quantiti3rs :pd+f6 upges?

  If you pitch a baseball with twice the kinetic energy u6wrswy8 zer )i+5g+dyou gave it in the previousy6rw we)rg 8us5i++zd pitch, the magnitude of its momentum is

State Newton's second law in terms of momno3bo7o yaqc oz.)a9 wk)6)pm entum.

State the law of conservf4gb3w6bp p t3vm ,ywe6j1e9 fation of momentum.

  The area under the curve on a F6p3c* lyk:s uvorce versus time (F vs. t) graph represents

  Which of the following i )q1+d6x,bilftk 7j +a0-ies ogc gx.ts an accurate statement?

  A small car meshes with a large truck in a head-on colnb,ntc.hf-td1)-z e/hwiwc 6 (x h9lwlision. Which of the following statements concerning the magnitude of the aver,w6/xct1hdn- nwce-zf9h thlw)i b .(age collision force is correct?

  Two equal mass balls (one red and thxd pn+ ),n,ybovdu, bx h5d4xajgn9 ;m8w9w:ue other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Whic n4nm8w)du+ wybdo 99xxh p5gbvn,; d :,,ujaxh 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, collides with a statie0 1lgtmbg+p9 onary bowling ball. The Pi0tgg bple91 +mng-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 off each other. Li /*gw,w3b tbqlcx4 vd7near momentum

  A 3.0-kg object moves to the riq v b5o;7i8z ceuf.krpj 88do0ght 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 statement is corq7zf ke.p 80u88 io;cvjb dr5orect?

  A 100-kg football linebacker moving at 2.0 :kgej l8xag180 t2mw hm/s tackles head-on an 80-kg halfback runh jxmtka8 80l:1gwg 2ening
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 0ivl+x0 thj9 mfollowing statements is true about kinetic enejm txlhv00+9irgy?

  When is kinetic energy conservey.ip75 g(l hfad?

  In a game of pool, the white cue ball hits the #5 ball and stops, hay0g)av ,s y0engub)7-t6 smwhile the #5 ball mo7s-ev)nagay yht00 b,)g6s umves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach bax(q -jl -f;a0o;climu ll rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed 0xmq-ajl-f;c( ;liuo after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collisiofu;43qgefvm o5k1 h .fn with a stationaryeg;k 5fu 1qof 4fm3.hv bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides2co33d6 f su hg: pw3caslevfa1(y6t9 head-on elastically with an identical ball at rest. What is the speed of the initially stopped ballc9devypsl 263ug ho3 (3wcf 6s: afta1 after the collision?

  A very heavy object moving wit*gw wvnqdx:1e5 adv:w+ ikpw9wy3 ;*/wjpfz- h 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* w pkqw+vedx*ai/3n: vwzdy:;w1jfww 9p5-g speed of the light object after the collision?

  A very light object moving with speed v collides head-on wiluhazab 8m:p: 2bhrd f7 6qa,,th a very heavy object at rest, in a frictionless enviro:, p:, bzh8drfu2ahbqaa7 6mlnment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with a yl yc(/hpl ,9lqel1o.tellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of thelh 1ot9,/(yc lpl.le q yellow ball after the collision?

  A very heavy object moving with velocity vsh -nvm/p5b 6f collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction.vp5s6 m-f b/nh 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 conserved, then which of the foiaw6r/:w (m+d6xvei e:mn(mfxo-t+ gt-7cm xllowing statements is :vt-eat6i6me( m gcx rf7o+w ix+-n:(m dmw/x true about kinetic energy?

  Two objects collide and stick together. Kinetic enez0+lw5 .l*zk xu -r5 )sgpwtmgrgy

  A 3.0-kg object moves to the right at 4;kh7zr dfo3+e ./il ae.0 m/s. It collides in a perfectly inelastic collision wit; d73+.oe/kl ei harzfh 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; er*p c:bozqda+ v8+i sticks. Which object experiences the larger magnitude of momenrq:va+i; o8cd+e*pbz tum change?

  In a game of pool, the white cue ball hits the #9 ball and is defuw n69pap7uqk +p64 sdgz, xn:lected 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 f 6wfxn b9 8-v 8v,dec8yf4hijualse698,cb8wfxhu -4v jeidv f8ny?

  Which of the following i/qmcev3ih7yk9 (5 a *d sric4zs a false statement?

  Tightrope walkers walk with a long flexible rod in order td ;zjrtk a5g+ 9uov4)to

  A plane, flying horizontally, releases a bomb, which explodes before hit+p2d j x5 yhdyeqg.d.-ting the ground. .5.yy edj+phq2 gdd- xNeglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Tza pcqd/kb5ko /+d d/+he collision was completely inelastic and both cars quickly came to rest during the collision. What is tr+ //kb+q dkdcp /zaod5ue about the velocity of this system's center of mass?

State Newton's second law for a system of particlb5+ n9gylck+jra0 ewl+f-af,es.

  What is the momentum of a 2000-)x6ma /gl 3.5ly;pqvcpvf.ucf r 9g ;ckg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s.x6 txbfjo,4krr3jy x/5z--jj What is the magnitude of its momentum-rx f5-b,jxztyj34or kj/ 6xj ?

  A ball of mass 0.10 kg is dropped from a heighj.h4 ;n .mnrsbt of 12 m. Its momentum when it strikes the ;jhn .rsnb.m 4ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One m8mwrl m rll/(q, cmz(w: c lv0(r;ku*koves with a speed of 25 m/s due north and the other moves at 15 m/s dluml(0/:(wlqr wr, l ckzm(r* c;m8kvue east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strik;asx,e2 ns7ic-vhfpnmb r7852fk0 t u es a wall and rebounds at 24 m/s. What ish 7nf; 2tnrspsm2buc-kxi8ef ,v 07a5 the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially m2,kmdbwmas z 37jb ()b/o g-ttoving at a speed of 12 m/s, is struck by a racket causing it to rebz jt, dm37ab2/sbo )(-kbt wgmound 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 (excludi /ckaygo(i:fpm/ 4e7ung the baseball) 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. What is the recoil speed of the pitching mach 7yf /i:kc (/oegma4upine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stjw lom no59 8cv71ld-fationary 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 mo-fowcol91nm5d 7 vjl8 ve toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a-g9.-jvu+khxr ww j,u large object at rest. The small object bounces straight back with a momk,r 9j.v wgu-hw -jxu+entum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice a.l0lx ilrkw58me6azikj 7n 70t 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. Aakn05ik7 jrl 6wiexm0 .l8 zl7s you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves taf/gfcrr ui3r5-* :c 4l hk85bmon yp-o the right along a level, straight road at a speed of 6.0 m/s. It collides m khc3nbfl8pr:guroi 5ay4 r c5*-f /-directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 2;phgc:0q+ nwj5 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of th wgp+jn:0ch;q e cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a 16uxhy*p2(n n4 m/+u nk qfes;no iy0vlevel track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest andnqsku fyn4; yn+/6m xphe nu(io *120v with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction ono62 ;ai0 vedhqm /fjt8 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 fast will the 60ife q/v;8odtj mah2car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respect to thr69 ddvn 20idac2)oes e log). With what speed do c2vd6i e ar02ddsn)9oes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly inc--cqji pkzioy*p-ue;e (tjpda: e 4k29b/* ctreases to 15 N and acts for one more second. What impulse was imparted by these forces to the obj /i 2ketaj y-d b4zq*u*;c:ep tp(pi9jkeoc --ect?

  A constant 9.0-N net force acts for :ukqtgrj.l 5 zg:n,c.2.0 s on a 6.0-kg object. What is the object's change of vel:cnktz, 5qrj:ug..lg ocity?

  A 2000-kg car, traveling to the right at 30 m/s,4* fk*)byt gmr collides with a brick wall and comes to rest in 0.20 s. * k)y4mgf* tbrWhat is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to asbt mm7+rl 9 /ni)*ivkqx8 u0you 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 magnitud 0mmals uk* tin7b/iv8+)r9xqe of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the balta5p n1l( yf5lp6pv5 ll right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectivelllppn51ft5pv6y l5( ay. 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 b+nizoqx1 d s()t9g/p-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted o( px d bigqt1s)/n+z9on the machine gun mount?

  A fire hose is turned on the dooftv +sf:ys+a:4 b knt84wh8jur of a burning 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 the stream needed, assuming the water +8bhs w:tj n f4+fsa48u:ykv tdoesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of jc)z3(8qgw. ls 3aqgv120 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 th83 qvgqsag) . wz3jl(ce ground?

  A toy rocket, of mass 0.12 kg, 8e edncx/ gu.6achieves a velocity of 40 m/s after 3.0 s, when fired str6ne/xe8ud g. caight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 8mbu8q+ykm3) (*jbq e p0 kg, are initially at rest in outer space. They push each other apart. What is their separatbk u )8jye(mb3q+qpm* ion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a sp1po fauc3lx3;eed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left atp;x 3of3l uac1 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 +x direction makes a hea4zy d;-mshm7 qd-on elastic collision with a 0.15 kg object initially at -;hm 7 4yzmdsqrest. 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 blocjw),mccdl 5 mz2am9 3wk at rest. The bullet emerges ,dc ma3 2mwmz9w)5cj l(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?

  A proton, of mass m, at rest, is struck head-on;ya2zegy6n j( 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? (Assume the neutr2e;ja6yyngz ( on's mass equals the proton's mass.)

  A 50-gram ball movinglb*w)chy4 tx 24ala0x +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speexbl 2 lt*h4aya )04xcwd of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s urh5k 2jk .) 4y5apmfwcollides head-on with a 200 g ball a fu4k5jyw)2pm k.h5rsitting 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 speed0p0 hzf kl.:xb of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision lh0fb :.zpx0k 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 collides head-)i/ kl d1pr5zaon in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this c rlki za/pd)15ollision?

  A car of mass m, traveling with a velocity v, strikes)k/, n *o0x9gf wn6bze* *;hvo+jsovrar wf9m a parked station wagon, whrv9fk z)s9n*/h6xa f jbvwo, *;wg+oe*0 n ormo's mass 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 213 m/s in a verti8dwkxmb2w,4my6 h+(ujph r y,cal direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulle8 ,26khp4ry xj(yhwm, d +bmuwt/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 travelin l)(yo+0hyl+ggirl nru -)6 sag at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars su-r+g+ i n6()ohrl lyy0gs) latick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling73lk oz sisw)0wp /cs) at 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 direction of motion of thwz)wsoli)7/c3p k s0 se cars after collision?

  Two objects move on p (mgm.c.-i+ oposj;pvq/z 9ya level 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 magnitude of their pz.y;v i. m+ mog9spo/qc p-(jcombined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towarde;lezk/ ,1 b ju*qi1yx 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 a ue kl ;1iqbz/y,j1 xe*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 l*/xwr)b, enh = + 21.0 m. Where is the center of mass on the xe *xbnlh )w/r,-axis?

  The center of mass of a two-parajei x oh06bg78k:v 5roaoglf(0z81 4nyv3ehticle 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 locaroo08fnah6e l45j3 8o aezg 7v :0 1bkgyihxv(tion of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kgrya k842v (new at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of 8k(n wya2erv 4the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0)gir, 6,tkk r)wfkro,, , (1.0 m, 1.0 m), and (2.0 m, -2r6,i,gktr)kr,f ,wok .0 m), respectively. 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 m )y+yb:v2) her / ivdw;xw2jpoass 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:xv yy2;2he/p d) )+rjwobviw system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the positio);40 hv vroh:bn vpbqc/f0)f hn of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tallff vq )brv obvh/:n4)h ;0pc0h.