What is the SI unit oflr4+zmwph-/z,s s n p4)7 be1urcc9 br momentum?

  When a cannon fires a cannonball, the cannon will recoil backward becam1h f*. xs3354ucum 6rfyge 7qsh4nlluse the

  A freight car moves along a frictionless level raib w:v ij6 lkcnm440d4gjfb p3xjx*d9*lroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What hax39j j:d* lnmpgkbdxb604 4w ijfc *4vppens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. r3gn*dha66x y ,4xodcs0jgz)x qg +q2 What happ0x)aq rozch3* qd4 ,6ysxj6 gdn 2gxg+ens to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with eqf ywhrmk --t/hu*eijh ,9oz5 nb.c 8f1ual speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the hh.9j1 -zteyo w*fc,fi8nh-kr/ mbu5wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving witkdo)ah l)kh2s,(ww1 y+-numc h a momentum p. How would you represent its ki+c hym,o(ws)d kla2-1nw )kuhnetic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic ened q6gu. e 7lsguct9c--rgy you gave it in the previous pitch, the magnisltggc.c-u 6qu7e - 9dtude of its momentum is

State Newton's second law in terms of ap v7 rrc x 9e5qfufw9.x:uf)2momentum.

State the law of conservation -ibhuy6e9h.f of momentum.

  The area under the curve onl c uhr0crrn1uv4h145p9kde f*lcp5)9a q qz5 a Force versus time (F vs. t) graph represents

  Which of the following is an accurate sth9 dg1yz . gdiek,fl.6atement?

  A small car meshes with a large truck in a head-on collision. Which of th wby *ki7 cuxs/e;cc;-e following statements concerning the magnitude of the average collision forcck;*7 sywx c b-cei;u/e is correct?

  Two equal mass balls (one red and the other blue) are dropped from the sa ,sgq3w3fv793w k(ppxrz yb rb-,m)zcme 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 collision with the fl3y g-x79sk,,)rmc pbzw wvbf zq 3rp(3oor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collidea2t6 odu-5, n v94b)yiazizud s with a stationary bowling ball. The P)bata9 u z-6, uodv54zi2nyi ding-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. L 3.ef.gimj uq9nu 1sq.inear momentum

  A 3.0-kg object moves to the right at 3rm-l0qe:pbtz z (xn (e ot84ngie gro9r l3+,4.0 m/s. It collides head-on with a 6.0-kg obenmreql+r ze3pzg3or-tbno40l:txi 9 g 8((,ject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker movindpa+u 9sf,lqo9 dd1ua fra960g at 2.0 m/s tackles head-on an 80-kg halfback a6fl9d 9q uaro ,ufadps1d +09running
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 tq,icx 877 w. wg6pvquq,+yrgbzrl8z )he following statements is true about kinetic ener.c6y+ vgqzb)xrqwq88p ,7ugzrliw7 ,gy?

  When is kinetic energo:3*ohke1 yu76i,0*o uybcnnkf da:zy conserved?

  In a game of pool, the white cui w+fxi5x 6uf/l/4or p3:lojge ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cu lxf 5 go+j/lo6/iuif: xp3r4we ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/sc0 fg:;etuvu:f5z m4v collides with a heavy exer:cue 4;fzvtug :mv05fcise ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collisv/1fwf g:) lfyion with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately afte/y)f1 :wlff gvr the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elak0c 6hs8gj06wwnop+o stically with an identical ball at re g jpo0soww86h0+knc 6st. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light objec kdw.7r)ti x0vt 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)7d r.txvki0w the collision?

  A very light object moving with speed v collides hekp m,, jdpf*8pad-on with a very heavy object at rest, in a frictionless environment. The collision is a *mk,d8pj ppf,lmost 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 of eqp m.b/hipt 8+dual mass moving with a velocity of -2.08p. hp/mitbd + m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving wit:shyw15-hb x*gd 9vp /5hewe lh velocity v collides head-on with a very light obpw5/x-hwyes :be95vh l hgd*1ject 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 conserved, t 91c5el8cka d:we ccmk*+w3vyhen which of the following statements is true about kinetic en59l+ke e8vm c3wy cac1w dk*c:ergy?

  Two objects collide and stick together. Kine.n qom6 6,8ddl job(mctic energy

  A 3.0-kg object moves to the right at 4.0 m/s. 9 o,/ lp;vbyefsqc )h6 It collides in a perfectly inela e;lbv6sfho )c,p/9qy stic 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 large object and sticks. Which object experiethv nn 3/t// 2kpg;ku;fctb.fnces/n2 tctk nh;./fk;vu 3 /fgbtp the larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball ai*6 tm5 ajxv z36dtt,end 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 gbhim zq*p ofz/7+90sis false?f o*9ig/7+q0 zmhbszp

  Which of the following is a false wx 5d/ena:w17gx7o ovstatement?

  Tightrope walkers walk with a long flexible 81naoeno3;dw rod in order to

  A plane, flying horizontally, releases a bomb, which explodes b, kw obwcik )-yp7* 87yd1nmwbefore hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just ab8d7w) -piowk ykmwny *cb71 ,fter the explosion

  Two cars collide head-on on a level friction-free road. The co 5 5mnxt9n0gopaj3 :spu(23li y- fynmllision was completely inelastic and both cars quickly came to rest during the collision. Wl o 3m g 9t mni5(-0uspyxyj3n2nfa5:phat is true about the velocity of this system's center of mass?

State Newton's second law fx0g*d87,z tyr fd4pmeor a system of particles.

  What is the momentum of a 2000-kg trucks 42bgime(ey)gt 0 f6m traveling at 35 m/s?

  A 1200-kg ferryboat is movih- ojhuq3q: a h-hg8g5ng south at 20 m/s. What is the magnitude of its momentuo5qh-hh:ah -8q3g gujm?

  A ball of mass 0.10 kg is dropped from a height of 12 6hx etkvzm3kydr. ea93o; n-p.n6 5 wsm. Its momentum when it strikes n-h;ae3 k9 wrpdkx enm..65yzo 3ts6v the ground is

  Two identical 1500-kg cars are moving perpendicular n .q+ieo;0pos ily:5a,xr -msto 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 ooq,apn l.xyis r ism:; eo5+-0f the system?

  A handball of mass 0.10 kg, traveling holp( e,1 0yx4p /uq8 yiqt zreo)y/zp6nrizontally at 30 m/s, strikes a wall and reboun/4ypp e)t( l/e8ui,r1x z o0zy6qqnpyds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a rtxx 2jsa 6b rmno;(4d8acket causing idjm4 xn ;sxot8br62a(t 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 baseball) is placed on a froi+7w o juuf44c;.v7d/n cd kpqzen 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 machine? (Assum;k4cuqi4dd unwj7 7 v.+/cfop e negligible friction.)

  A 70-kg astronaut is space-walking outside slhs)afk n.io 1. uq20the space capsule and is stationary when the tether line breaks. As a means of returu .s1k 0l sonf)2hq.ianing 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 capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a l* t fe99 9ci3 gxm(j7gupw1xnbk3j-eparge object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the majf93 t p -incb3wx9*eg(xkgjm7 ue p19gnitude 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 masspzf r1(e6 q 6nkbj,6ws), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togeth,n 6kj1eb(qp zr6swf 6er?

  A car of mass 1000 kg moves to the righebe4b2,.vd 1y1)vszityfr+fzy 3 )eb t along a level, straight road at a speed of 6.0 m/s. It collides directlftzbdf.bbey )+ey1, zv3iv124 )seyry 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 runs into the rear oo l29;mkwui 3zf a stopped car that has a mz9 l2miw u3k;oass 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, iu4r5-nc1 uvr1 (azqxfs allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg seconxr rcaz51uq1vuf 4(n- d car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass wu2v 0- 2v cr.;ypyz3un0j bma200 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. How fast will the car be mmvay.w jb u-32u2p zcynrv; 00oving after this happens?

  A 60-kg person walks on a 100-kg log at cwu; ;d)x*;quiscdcp 14p/ zz the rate of 0.80 m/s (with respect to the log). With what speed does the log move, wuc4s wd;iz*zcp /uq1dc;)x ;pith respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 153c g 7jwwz+t*5ts*d gw N and acts for one moctsz7d wgt3g5* w +*wjre second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s rn6mzu;-8j2drlmrc 9on a 6.0-kg object. What is the object's chanrdcr2-n8um 9 ;zr lj6mge of velocity?

  A 2000-kg car, traveling to the right 2t 1xv 1sabx)yq1x0ff j3yhy,at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exertsj1x,ahf03xyvf x q ys)y 1bt21 on the wall?

  A 2.0-kg softball is pitched to you aaq ;,3mc(ichf t 20 m/s. You hit the ball back along the same path, and3 (mi;ccf, hqa 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 dropped onto a table top. The speeds of the ball right behf05a m*/n necfore 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 tab5m a0n/ *hefcnle top?

  A machine gun, of mass 35.0 kg, fires 50.0-grm j+g7zrq75x g2+jx 6 n0adq.rdji7xfam 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 x++ 7qgr02.zj x5dfr6mjgj7 xa7 iqnd gun mount?

  A fire hose is turned on th 4lu )0+slvo8a8 ismc ,nhuum.e door 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 seclm 8u4ui,. ) n+ avshmoc8l0suond, 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 kg per mo r4 8+(nyzfitinute. It falls 3.20 m to the ground. (i4 t8r+yozn fAssuming 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 velocity of 4 e2rl,c64ieq l0 m/s after 3.0 s, when fired straight up. What average thrust force l,lqrec24 i6e does the rocket engine exert?

  Two astronauts, of mugn1a9.imt690keyv *fb( m qzasses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 12 m? f9m6uva m *tb 0e1yi.z(9nkgq

  A 3.0-kg object moves to the right with a dst zq*lys j59m*.* zyspeed 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 *.y9*m jds5z l *ytsqzthe collision?

  A 0.10-kg object with a velocity of 0.2x w7rxndvco wvg8.(/ 20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at res 8w 2wd/nrgv.xv (ox7ct. 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 int i7eb;tmny +;ko 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 blot; ib ;ken7+ymck right after the collision?

  A proton, of mass m, (gjhgzuli -ra( n3dze01xr,/-jp:r q at rest, is struck head-on by an alpha-particle (which consists rhgid3, x rua0l(j/p1e(jr-qn:z-gz 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 the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of masswb0 :cls 8e rrcg59 9sjmnfl4: 100 g. The collision is elastic. What is the speed of each ball immediatelyn 99c:80e cfrsjsl4 :mbwglr5 after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.704l q -9eyr(+ dbd9rimp +o7a fn0imb3v m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly d npdli -0b 739febrvmq+ + m4r(y9oiaelastic.
(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 speedpqe1+(w4- gnmkztwlhw:1c )dl; 6ehq 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 4t n(pmh+q;w 11g6edz:k)qhll wcwe-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,e 4sfxcc 58kn perfectly in8kcn4xfs5c,e elastic 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 ptk n8io 9qmg)xxiz tk2s1l((3arked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collisionql 8xzgk(i otk)nt1mi(x293s . What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 2uwl,i(w/al a +13 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 combination moves vertically (li /aww,+au lupward.
(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 90v o+m9p5drw ,y:(swbkhiet)q t77y5 q.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. oyipq77: m tw qvbsw)er(+kth9,55d y7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.e f/q0;ympoq +iq+xs0 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.) Whay+e /q0q qsp; fx+m0oit is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east withss0v b6u75m/ xektfp: a momentum of 24 kgkp 7ufmv5 6 0se/tb:sxm/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 massa ot:1x 1xw.0z6afvho 10 kg, is moving toward 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 z a1:oa0h x6vw.t 1oxfwith 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 mass sits at x = + ;w 8cf9f)tve :w/igqa21.0 m. Where is the cea9/e:8cfq w; wgvtfi)nter of mass on the x-axis?

  The center of mass of a two-particle system is at thiq,g u17 qrn,mu1rl 6ve origin. One particle is located at (3.0 m, 0) and has riu qn qm,11lgruv 6,7a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), wbe2dj 7tp y *k*rw.6gand 4.0 kg at (2.0, 1.0). Determiy k *6.d w*wpretgb72jne the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0) hoktp,n r3wp(0i4z2l , (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the locationorkiz24p tw (l, 3hpn0 of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-ksp6 qoet60--a1 i hli drvn4j8g 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 system of three masses being locatedn 1 pirh-tq8l06-s ed6av oij4 at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a wholegs2x ,m y j.yf,3ct2c6 gaq4bp leg including the foot when the le 3g cf 6g2.by2cp4sm aytq,x,jg is stretched straight out. Assume the person is 1.60 m tall.