What is the SI unit of 7p acx f2/b8 3gkmq0 sze/8sfwmomentum?

  When a cannon fires a cannonball, the +sx6u q(p /rg,fh5t) o9 fjwancannon will recoil backward because the

  A freight car moves along a frictionless level railroad 2y ,1n e 3 n3l;;xqwvqt2zcicztrack at constant speed. The car is open on top. A large load of coal is sudd2nnx;3c 3i,c lq;q w12evz ztyenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictioualhe, 2vyr3sga6x9(3g )txp nless ice. What happens to the velocityp) 3h 2lv ggx 9(eux,3atrsa6y of the sled?

  A rubber ball and a lump odfnx42o3 ay+s-q s)hcf putty have 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 sti-ox q a4snc23dfs h)+ycks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m ise0d4;3vbq1b mtw:a vrfq8yjlgz -a 89 moving with a momentum p. How would you represent its kinetic energy in terms of t a qbzatb1v9gq m rjdf88v4e;y-0:3wl hese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in th,t79 kjw3k8p3ou-odox fj+ije previous pitch, the magnitude ofx3o,f pwk3jotjuki 97d 8o+j- its momentum is

State Newton's second law 7xv-h s+gef h; /p 6i io+j0o5mqoeya7in terms of momentum.

State the law of conservation of momz4mi/d j 8kvw4entum.

  The area under the curve on a Force versus time (F vs. t) gcs;x bd*; x (5lzds*xfraph represents

  Which of the following is an accuratm97g f6 pve 9/pbod* 2r pdooouso/)h9e statement?

  A small car meshes with a large truck in a head-on collision. oi2z,2lyph i 9h7fcx: Which of the following statements concerning the magnitude of the average collision force is corro zhc9 :iyihx2p, 2lf7ect?

  Two equal mass balls (one red and the other blue) are dropped fr-i(2a0vthzk hwoy7 a5 om 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 during its cohkaiyh7a5t 2( -zw0vollision with the floor?

  A Ping-Pong ball moving east atojnl01i70v qv a speed of 4 m/s, collides with a stationary bowling ball. The 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 tnvo 7i10vjq0l he collision?

  Two objects collide and boxy o8x lsk6j;(unce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on withjousm ed4:(53vpw wy( sw00pm a 6.0-kg object moving to the left at 2.0 m/s. Whichmv4pe5mwy 0d(wwj(p0u s: 3 os statement is correct?

  A 100-kg football linebacker modtd+2zg * gtcj1:dvg 5ving at 2.0 m/s tackles head-on an 80-kg halfback cg+tvztd : 2*5gjg1ddrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentumkx 7kz.b,c uc2 is conserved, then which of the following statements is trub zk72.x ,kccue about kinetic energy?

  When is kinetic energy conserved?(ci rq k:ey)g7t ibv*+

  In a game of pool, the white cuua1nx;1 6z;aul bfe49xg2w dw35oxpze ball hits the #5 ball and stops, while the #5 ball moves away with the same vuw54 xxz;6w1od2zf bau1gx;nael3 p9elocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a pvdz:s/ f5d l yol58d+speed of 6.0 m/s collides with a heavy exercise ball at rest,+fsvl y855o/:dl dzpd the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right 9z )u v*q0o*f-*:irf asgvdcvcollides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision i qfzuv* o0d):fr v*vg*s-9cais 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 collides head-o,6zw;viath 8cn elastically with an identical btihcw8, 6az;vall at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object m:*i3vnlw ll k4oving 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 :wi4vll nl3*k after the collision?

  A very light object moving with speed v collides head-on with a very he dnc/+t cpdez.4:i+w kavy object at rest, in a frictionless environment. The c cp+zentdk:c4+ /id.wollision 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 yellow ball dowr8( bsg* y oup9wq)mb3+(uof equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the ru(b8y swd 9qu*wmob +)(3gpo collision?

  A very heavy object moving with velocity v collides healvm0 ebs:g txd -/s-c/zd* w7ld-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction.txlcsg70 -eml d/v*/zsw:bd- 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 whik3 44o)aphlrt2 xwasqw; d: 44j6zys xch of the following sta)h ajq; :xr4kxa d sszw 34pytwl6o244tements is true about kinetic energy?

  Two objects collide and stick together. Kine ucc4y-/acz/ae 3 3tiitic energy

  A 3.0-kg object moves to the right at 4.0 m/s. 061tq,-xfhd ghbaml+ It collides in a perfectly inelastic collitq,mbx1hafdg-6l0h+ sion 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. hiz8isk ) *fnyg7c2cm,e.l2 e Which object experiences the larger magnitude of momentum cha gl.*z i,h7e2)mnye8c 2cisfknge?

  In a game of pool, the white cue ball hi;83m..pk4yi h7 s yuljugk2 ilts 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 f43anetgml rq6hlp s7.--s t,balse?l-rpsha tqs4ln6-. bte,m g3 7

  Which of the following isvat7m wfa,xrw:aqh y0/ o kcaz/(*, ;p a false statement?

  Tightrope walkers walk with a long flexible rod in order toxxnjbyk-hu3 c upt s9yim1l4a73: *n)

  A plane, flying horizontally, relem *.fpz4x1:aby/s e htases a bomb, which explodes before hitting the ground.fm.4zh* yts:1 epb/xa Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-frez disc-fo/3j0e road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is tr03s/jdz-c of iue about the velocity of this system's center of mass?

State Newton's second law 9 em9 4idr upih)9izy.(ufpc-for a system of particles.

  What is the momentum of a 2000-kg truckp-)e(pts *klq 2ztuwq,,jl 8pj 18az s traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magni 6/r ) 1*ik7e+rbast-nl+l nt4ece9fpf vce2htude of its momenil6ef tet2e+ rk4*7p1-cah)s9 bn/v+cn elrf tum?

  A ball of mass 0.10 kg is jlk j2ox6k 4wq1r. 9k.sown7fdropped from a height of 12 m. Its momentum when it strikes the grouw.q7 k2j .o4 xjkfowsn1krl 69nd is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves ouvb* bd ig7d- ,qdj)fi8/5gkwith 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 g8db*)/i vobj-5dgq i7 df,uk system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a d7lz.kvnntj *yq1+h mx7f3-o wall and rebounds at 24 m/s. What is the chang+ol7fth mjnyzvd.n- q71* xk3 e in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struc y/ d:grwmm;j)k by a racket causing it to rebound in the opposite direction at a speed of 18 m/s dgrw/;)jm:my . What is the change in momentum of the ball?

  A 50-kg pitching machine ( 7 puq.kcj+0naq-rf8yexcluding the baseball) is placed on a frozen pond. Therqkajqu+c -p f7y 0.n8 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 machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationare6 ;ii h6o/k(r*ewqmsy when the tether line breaks. As a means of returning to the capsule he th*hr mes/ok (6i6i;qwe rows 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 capsule?

  A small object with momentum 5.0 kgm/ pjad. q*hyrx,2+fd0w5 pd:trs 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 momentum change hp *j:q0tda pddrw,x+rf52y.?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg ma7-ns g j+izm7gss), who is standing still, with open arms. As you collide,izngm7s7 g +-j while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the rigoqna: e8lowr 55*vqb9k 6x:ezht along a level, straight road at a speed of 6.0 m/s. It coq le k5n:8xb6oa*zev 5:9 qrwollides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s ru b2lt(.)mw cqtzqag1w,4f y0t ns into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the ca2(wtg)qtl4w,f bz0y ac . 1qtmrs after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast al4ac jie -z i83kylt l/w4ood.(ong a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest an / zl( ji3lo4e.t-8kydw4 oicad with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible fe:)j0iz r(t+ko0fk8 gj/ ba )gi,ii rhriction 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 landfika oz , 0kbiehggr) i(rtj ji+):80/s 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-od7pyulz *k1-t+tv7- i yz uq of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the 7-qzut u y-oiydp+7*1-vlzt kshore?

  A 4.0-N force acts for 3.0 s on an object. The force sl2oy jh2y)eqg pnz(tm u30 gse56w3,iuddenly increases to 15 N and acts for one more s20 3nm,2 i6 s zp5gy(ulw )tqge3jhyeoecond. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for ao0sot o3 ,5is2.0 s on a 6.0-kg object. What is the object's change of velocstoo,si3 50 oaity?

  A 2000-kg car, travelingc+4cix71 htqajfs2;:8q lpo l to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force th14;qh ljfical pc+7q: xot82s e car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along the ncno o9.jrq ;: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 average force tj9n:r. on;o cqhe bat exerted?

  A 0.10-kg ball is dropped onto a txmphtuam+ 8tj )xo8gl+( go*2wul3o :able 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, r *w8: mxtm(loolg+8 )htux+gj 3o2apuespectively. 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 50.02hv:9.;jdgdc-cdvhz 2z)db y -gram 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 -cbd9;2h h.zv)2d yz:d jdvcgmount?

  A fire hose is turned on the door of a burning building in ok -qi:a4k wa-vrder to knock the door down. This requires a force of 1000 N. If the hose deqkvwk--: i4 aalivers 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 horiz spxz* omx7.5vontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the *vzx.xp 7m5so 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 velocit wtksv npo;s in,:g1) 15e4 zlaqo7hx1e ;dh1ay of 40 m/s after 3.0 s, when fired straight ,vkl 1heh7exn s1 a5:) dtopn1a4w1;gis;oqz up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60:: 4u5;ua udtxisu tu5 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their u5xtau s d:; u:4utui5separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the ri-cci2+wmira.ywt ; p/ ght 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 kinetic energy after tha ri+i2p c./;w-tycw me collision?

  A 0.10-kg object with a velq fkk :h y;lzxiq89:e1ocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.iq;hk: y 9e8:zq fklx115 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving ( h jz+fstxngs8 v.f+y3ql, *zat 300 m/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. What is the velocity of the block right after the collisiv,zs8hz +sl.g ytnfj(x*3+fqon?

  A proton, of mass m, at rest, is strucklp2hl e-itztcef8.0 1w fxb,7 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 t0 be 2w,llet71z.icpffx- ht8he alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 31q fxqldfo9npf7r1jk :y 7*um/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the cplfo1rky7 n9q fuj q:* f731dxollision?

A ball of mass 400 g moving toward the east wiv u*)4ucrr ,hrth a speed of 3.70 m/s collides hea *u )rrrucv,4hd-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 collides head-on with a 3.0 ki q;nn4 sks. vvd:u)*jg mass at rest. If the collision isq) k:n ;jin.4sv*du vs perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at t2e :xk4xsn0ha speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mt4enx : 2hxsk0ass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with aqg:4(ir2gvic,a f. ro) l)mal velocity v, strikes a parked station wagon, who's mass ii ca ogmifa :rl)rv(,).g4 l2qs 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 vertical diryjqfy f9lzb8be1 -; y*ection buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulf y;yjy9-q8ef l1bzb* let/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 collides with a 3000-kgnrg(xky/ h3 /g yttm,3 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 the cars t/,3xk gh( 3/ymgn tyrafter collision?

  A 1500-kg car traveling at 90.0 km/h easjpdk ho 0mbe ;w7fz734p6 jl6*m hl5jit 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 4 l5lbiz7*6j6 7jep0d jo;p fhh3mkwmdirection of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east with a p5 :qmmky1he 2 a8pjn1momentum of 24 kgm/s. Object B moves north with 15y nah21pq emj:mpk8 momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a ven9ex2u tpq n**locity 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 wit9p qx* 2*ntuenh 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)jpyyer 0r5;- 0udufj+(9(mreut tvj .0-kg mass sits at x = + 21.0 m. Where is the center of mass jr 9-e(5 uj +ueuyj(ytt0)m;fpr0dvron the x-axis?

  The center of mass of a two-particle system is at the origin. One p4 xq59knns2gvt kct(z k4a1z6article is located at (3.0 m, 0) and has a mass of 2.0 kg. What is th95 4nzn sqk1(v6 ztg42x tkakce location of the second mass of 3.0 kg?

  Three masses are positioned as fg6/if yj/ :e8fxc lt,rollows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of maif :f8/ g,cxjlr/y 6tess.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (law;x exk*ynj hi12; i iey-320, 0), (1.0 m, 1.0 m), and (nlyyi ex2a; i;h 2xwjik1* e-32.0 m, -2.0 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 mass is poz q2k +i4yh;/wmaydp +(ctu9nsitioned 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 t(pzwqyck;d4 hta +9+ m iu/yn2hree masses being located at the origin, (0, 0)?

  Use Table 7-1 to cale3a 1u3nomo ,dculate the position of the CM of a whole leg including the foot when the leg is stretche n 3oadmoeu13,d straight out. Assume the person is 1.60 m tall.