What is the SI unit of momengqw8w 4zyre 2i*hs* c.tum?

  When a cannon fires a cannonball, the cannon bgoiz7g1gw63x. (fm ;wmd rhf,,xrlw86m/ bbwill recoil backward because the

  A freight car moves alongk 4szwt/ ir zo)u*e2,l a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dulu,)ti*s/zok2r4ezw mped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled whib fv 5axr74n5 +mpdt 4g7p3tyip+a 4rqle sledding on frictionless ice. What happens t 4vn5dx+yta73mbq4 f p gr atr5+pip47o the velocity of the sled?

  A rubber ball and a lump of .ikhu-4wd0rp 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 sticks to the wall. Which objects experiences the greater momentum .hk0 - wridp4uchange?

  A sailboat of mass m is moving wit4o*muz xn),chf* 6 yruhu,;724jz :bv uscb egh a momentum p. How would you represent its kinetic e ,e:c2 uhz,hn xobuvu6m bjy4s*cz*)gfu4r; 7 nergy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previo8 h5f.cd,k1, jtmew nyv9les3us pitch, the magnitu w,98y5kj medfe1 nt3v hl.,scde of its momentum is

State Newton's second law ws 7/d wj4ts:sin terms of momentum.

State the law of conservati-r;lqw*t2su hg-lb8 ion of momentum.

  The area under the curve on a Force versus time (F vs. t) graph rep7+f9 as 8p:s1vp rrkxiresents

  Which of the following is an acci*o 0n,f xl4yblr3g o50rs s*aurate statement?

  A small car meshes with a large truck in a )v/vt(h5+;i.wugb;r 8 aamn-ekp plx head-on collision. Which of the following statements concerni- 5mr+a/hu)t8(. wp;;iag v bvlnxepkng the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same/nnk6 k0a/g: u;x-9 g2, fcjgjkxcniq height, and rebound off the floor. The red bn9/0njkgf2 n /, -ak ;xxcgqgk:ciu6jall 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 speeyrlyskh2va8 :z/ tq33d 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 slowlvryta :sql /k 83z23yhy to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and pn/ caxf;0 wd4f4l2te5g7 r2 n;ilxykbounce off each other. Linear momentum

  A 3.0-kg object moves t6c9bzm46 c ijbo the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2. 9jcz46i mbbc60 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tcl1ba6 *jizug7syw6av h79 w)6 t4tuw ackles head-on an 80-kg halfback runniww*uy4t7wv6 blau7) tsg j1a9i 66czhng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentuxmpc;ya 3x0/u m is conserved, then which of the following statements is truy3mp; xa0x uc/e about kinetic energy?

  When is kinetic energy cgaz6z: ,tgmrl,, nl9 vrow/ m;onserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while thexfiz;o3o o ln+-3 fo:i #5 ball moves away with the same velocity as the cue ball had originally. The tyx i:z3i3 l-onf;+ofoo pe of collision is

  When a light beach ball rollinsa ux b+hn3h3 vw/f9h3g with a speed of 6.0 m/s collides with a heavy exercise bah h w+u33sv/bx3hanf9ll at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right col n2xilmz-s1z v. dc3ssm7)pa* lides 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 collision v)mia pm.s-12zx dsnzc3*s l7 is

  A rubber ball with a speed of 5.0 m/s collides head-zx5 ah830 7 )na9 xt ,o(bo gi,mx+yioe8vtrsoon elastically with an identical ball at rest. What is the speed of thegax(+xiox ey79 nstai,tb)vo8o z , 3hmr0o85 initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very l 6(hpeqy8cs .pvc5s)3ui l l:aight object at rest. The collision is elastic, and there is no friction. The heavy object barey3c5uh.eps)sl ia( vc8q6lp:ly slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on utblf sq4:o16with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collisiotb4luqs61o: f n is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow) *ez6ydq5x1ob/ekhx ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yexxdqeb/o6yh* 51e)k zllow ball after the collision?

  A very heavy object moving with velocity v collides head-on wits)fuur 6qhz(ovr)4,5c,r hpn h a very light object moving witu,nhfc),rq opvr5 uszr4)(h 6h 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 conserved, then which of ty+cej8 dvpm19o ,na6qb+ie c(he following statements is true about kinetic evc 9 (q8jbao,+dc y e+pmn1i6energy?

  Two objects collide and stick together. Krwi4/ vjiu5w:inetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in 7bss vz9f(+ega perfectly inelass7v9 z(e +gsbftic 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 with a lalc;g 6( .mo(7sf kafajrge object and sticks. Which object experiences the larger magnitude of momenfclao a(7f;(.km s gj6tum change?

  In a game of pool, the white.2 zwr4ww d3yb 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 thx5yed2va) ,c ye following statements is false)daec2xy ,y v5?

  Which of the following is a false strr r*tt5ha3+ f.hy +w8 )umkzw4 ,cbyyatement?

  Tightrope walkers walk wiy2 p-xcsb8+btk)u: nl th a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodesnsqrjy,4zp0 xy;w 5vxn; (* tn*fz ic* before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragqz ,i*xv( tpr4y 0*;x*scw y5njfn; znments, just after the explosion

  Two cars collide head-on on a lpwwus4 i4.jw 7evel 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 system'spuij.s 4w4w7w center of mass?

State Newton's second lar6n/9j e 5vd6 afggnr/w for a system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m/ 48xfuy- toj qc8by1w*s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its mor( ijarsk ym1+-b sc)1meaikb)j+1m1(- ys rrcsntum?

  A ball of mass 0.10 kg is dropped from ai itb p7c(zc7h2rg28p height of 12 m. Its momentum when it strikes the ground isi7izp gh7c8b 2rp (ct2

  Two identical 1500-kg cars are moving perpendicular to eachi9 epeas1b7y : other. One moves with a speed of 25 m/s due north and the oth 1i e:yeab9p7ser moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, slw5l g dl2:i.mtrikes a wall and rebounds at 24 m/s. What is the change in the moment 5milldgl:w .2um of the ball?

  A 0.060-kg tennis ball, initially moving at a speed ofoiqu;a s79rh m9/ig 7i 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in m 9 m;usigr 9/hqai77oiomentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on1.aj,u8gae mte+5j jm 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 th, g t1em. aj5+8ujmaeje pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spacoo d)zk2y7l )we capsule and is stationary when the tether line breaks. As a means of returning to the capsule hwood)l) zk 72ye 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 capsule?

  A small object with momentum 5.0 kgm/s approaches head hr+0pe3ki;r4lk e0 od-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 momentum0o+kr40idlhe ;k3 r ep change?

  You (50-kg mass) skate on ice at 4.0 m/s to qy +mwpkesf1(w *-w: 6bkko*c greet your friend (40-kg mass), who is stw p1kw+y:w(**q mok cke-fs 6banding still, with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a leve swiujpwc::id :/gwx(l75 d, rl, straight road at a speed of 6.0 m/s. It collides direlu: i5g7 wpww::sdd rc,i/(jxctly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at )2xwa:yjj8:bl :qe tx25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. Wha2q :xjlyjxetb:w )8: at is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a - jm4ytk3qcq5k) ja(k level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at rest and wiq kjm )4- ky5k(qt3cjath brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200)/d 1c6wy 4qj v4zlntv kg, rolls with negligible 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. H1v4 )/zqv w ldj6ty4ncow fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kgipx8 w6o/ m.zq log at the rate of 0.80 m/s (with respect to the log). With what 6m8z.wqop/x i speed 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 increzhki ca zt03-ls.4s cbc *e.f(ases to 15 N and acts for one more second. Wh (bh s*-.ze0i3c. tzcklcf4asat impulse 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. Wp i29gv rvvp-8ot7vc 6hat is the object's change op8 v9vgo-rpvv62 c 7itf velocity?

  A 2000-kg car, traveling to the right at 30 m/s, cqkdx so0m cnt9*nq2h o (95 -6kme+basollides with a brick wall and comes to rest in 0.20 s. Whs *+o0edq5m6a9k29 c bm-hksxonqt(nat 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 thekd ul0hz: b-v+ ball back along the same-vldzk u:0 h+b 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 the bat exerted?

  A 0.10-kg ball is droppe+ dm*j8ajw dr0b q38xxd 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, 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 tx*xd+8jr0m bqj 83 dwaop?

  A machine gun, of mazf:t +im st5ir um:*k.k,c+ nzss 35.0 kg, fires 50.0-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 :tii5n. r*ukz+cmt +msz k:f,the machine gun mount?

  A fire hose is turned on the door of a burning building in order tom 2schdlum((k3: smj0 knock the door down. This requires a force of 1000 Nmmlu3d0s(k 2 jmh c:(s. If 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 horizontal drainpipe at the rate of 120 vnwpuo3i z v- ,vhq(jnm,a() q8qh 25bkg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the groun, q(voq3h28bhv ,mqwjzv(ap 5uin-)nd?

  A toy rocket, of mass 0.12 kg, achieves ap/+n2xzhbv ; a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket n/v;2+ bhp azxengine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest i;j. -;(q3gfc iapos9nza0 iwen outer space. They push each oth 0-3;wp; (onzgacsf9aji .ieqer apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right o 6yezwq* 5-m kxvubv i)36x/qwith 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 kinew q*mzqobv-i6vx6 xu 5 /)y3ektic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s infjc ;,zht;/x b the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What i/ft,xbzh ;; cjs 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 block v sdk:l+3 h0uvat rest. The bullet ekhvd :3lvu+0 smerges (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 by an alpha-particle (which contxg0k (7gbw9dk f k0l2sists 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 collisiongb0dw(kxkt07lg k29 f ? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/:+7z vin iaqs+wqg7h:s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speeiq z +hvq7:awsig:+n7d of each ball immediately after the collision?

A ball of mass 400 g moving toward the eojo2 vk;nwj2 f*1)i uwast with a speed of 3.70 m/s collides head-on with a 200 *oownf)j ;2ju1kw 2v ig 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 sft/i)vun. qj+kj5 k(cpeed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collfk/.k v)n( iuctq+jj5ision?

  A 2.0-kg mass moving to:d7oe cnsb5 5u the east at a speed of 4.0 m/s collides head-on in a perfectly inelastb5no:dc s5 ue7ic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parfqs/kte2enkq) m-/cli*a: o 0 ked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost its-kaqq/ )lf / ic ke:e*n2om0n this collision?

A 15-g bullet traveling 213 m/s in a o2 jb xhtyyh-0.s6cu:vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically0-htjyb ux cyh2o6 s.: 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 xhshxe9.a )0obkjl la j9yp(i;2f7+a90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collialsj+h(p0) f7ajk 9o.bi9;xy 2 xa lehsion. (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 travelilu-(zj6)cy q-8l k qrung 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 the cars afterz u(q6lcuql 8) --ykjr collision?

  Two objects move on a level friction 5r91xog w*a,*el iohgless surface. Object A moves east with a momentum of 24 kae ,xog*g1r*w i9olh 5gm/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 collision?

  A small bomb, of mass 10 kg, is movingzfl/tz2di3 m: toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west wit:mz dlf/ 2tiz3h 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, ah(ft76x iju+k nd a 10.0-kg mass sits at x = + 21.0 m. Where is the centt(7uk6ix h+fjer of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One 4kmigzih/ vy77e9e t*particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second z iei/4tkey*9 7v7mgh mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0),i*bg015 2iok njoorosq+, h s0 and 4.0 kg at (2.0, 1.0). Detshk, o+q obs 0o1 *gor0ini52jermine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, qzjf -7r6:cwp. f nt91lyzq 8g0), (1.0 m, 1.0 m),-9 y.:q t 6zfz71rqgpn8clfwj and (2.0 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)o4x )91nwjdua bd1w b), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the c w1j41b b dnx)ou9dw)aenter of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the positiob 86hy/paj6 oqlz/+le n of the CM of a whole leg including the foot when the leg is stretched straight out6loy6l/a+/pzhe b q8j . Assume the person is 1.60 m tall.