What is the SI unit f p 7.u 10miutu(*uy6 7gowdkeof momentum?

  When a cannon fires a cannonball,0rpdsk sntpdq6)gq x0 ,e2-j, the cannon will recoil backward because the

  A freight car moves along a frictionle5x.2 ) lxef7/juse . pmknlg6tss level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. W7up).kxmsj6/ 5 2get lnlxe f.hat happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictio)b57- 7mkwo6itsjomh nless ice. What happens to the velocity of the s5h 77jt-mm )6o oisbkwled?

  A rubber ball and a lump of putty have equal mass. T;rz8 nza.o24b l9ugf whey are thrown with equal speed against a wall. The ball bounces back with nz9ru8oga;l f nzb4 2w.early 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 represent its jl4x r 1sf.tjg)x0u n5kinetic energy in teruxrgl 01j .f5xj 4st)nms of these two quantities?

  If you pitch a baseball with twice the kinetic energysd)xd ch6p,dl dry.fuu /+,0czs3h 4e you gave it in the previous pitch, the magniudrz0,scu fyelpd/34.) c+x sdh,6 hdtude of its momentum is

State Newton's second lmfjm7l3ro hzz+7s9 8eu q:wf3aw in terms of momentum.

State the law of conservation of mgpy6y5 ij-0h(bl;ayq*h t5cc;n a o2comentum.

  The area under the curve on a Forl1:r1 ne s2on( z9cwqqce versus time (F vs. t) graph represents

  Which of the following is an accudatkx.n 95;kau zs8.q ;2 twmmrate statement?

  A small car meshes with a large truck in a head-onknb3s(, 7ax u j6i,v04 + jde(bdspwjn collision. Which of the following statements concerning the magnitude of the average, pnu0 dvjks(ixn w b+ab(3,6j4s dj7e collision force is correct?

  Two equal mass balls (one red and the other blue) are droppetf h;cl+t3k xg2/e uj-b.,s cfrv ze84d from the same height, and rebound off the floor. Thehg;uv+8 r2e tfz4- 3lc/bj k csfx.t,e red ball 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 speed of 4 m/s, collides w:76ogid i (sjvo 6j m.d17ryctith a stationary bowli7t rj7 :y 6io oc(1gs.jdmdi6vng 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 the collision?

  Two objects collide and bounce off each other. Linear mo5iba pz4 0(jaementum

  A 3.0-kg object moves to the right at 4.0 m/s. It col5vsnt8 7 5t8co5fdscv lides head-on with a 6.0-kg object v 7 8cs5tcf5s8vot5n dmoving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at qxj2 .qay6n/r2.0 m/s tackles head-on an 80-kg halfback run. /r2q nyjqx6aning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved,x+uc7h7k .ubm then which of the following statements is true a +bmhu7.cu7 kxbout kinetic energy?

  When is kinetic energy conservedao hn ;,os-,)ke/i phq?

  In a game of pool, the white cue ball hits the #5 ball and stoe9 qv, ,iaw0wbps, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision is aiwe,0,bwq9v

  When a light beach ball rolling with a speed of 6.0 m/j9jw-9v y+6zeowfm:u s collides with a heavy exercise ball at rest, the beach ball's speed aftew-e ow6yvz 9f9ju+j :mr the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the ri jcf +pkqi--e :g3irzc0 ju )/7cemre*ght collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfc)g0j p3iz e je k +rque*--:i7cm/crfectly 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-on elastic..zbnml8 1yqsally with an identical ball at rest. What is the speed of the initially stopped bl.z qsb8ym1 n.all after the collision?

  A very heavy object moving with speed v collides head-on with a very light, t)rnb.gae9a object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What itab9eg a)n ,r.s the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a vu c i*smjz6+.tery heavy object at rest, in a frictionless 6+* tuzim .scjenvironment. 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 4o2dotozbn(yk e:/blg,87h+ a *mree yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision,o:ot zb7la4b8ghoe*em(+y2 r/kedn?

  A very heavy object moving with velocity v collides head-on with a very light xls 5zba0qc65y0ad( jobject moving with velocity -v. The collision is elastic, and there is no friction. The heavy0s(y0d5bq 6lzaj5 xca object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is dnjdjw 2*fs )q xk em1/.zgx88conserved, then which of the following statements is true abxf1xw *k.)gse2j/88qm jz dndout kinetic energy?

  Two objects collide and stick together. Kinetic energp nsr.1hka(a )y

  A 3.0-kg object moves to the right at 4.0 zrg*gi, 2: qcdv.r71pj cooe7m/s. It collides in a perfectly inelastic collisicji:1ogc7p2og 7 ,eqd.v z *rron 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. Whichw;(v1naw8 ksr mlju+,rt o0m+toz*o, object experiences the larger magnitude oww*v;(toa,1m+knz8 omo+l 0,suj rtrf momentum change?

  In a game of pool, the white cue 2 ,-kstw h2+zmztpn p wz c699sd-n2tuball 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 following state:t;stbd8ipps8e58hrc yug5)e u8a o:ments is false?s5r ; hts )y8a8g:eodtc :ue upi5pb88

  Which of the following is a falkuj zj.upttthd .*gum4a :(/8se statement?

  Tightrope walkers walk with a long flexible rod in ( w l(ln-au -2cpl1 r c6*ba o*nex(kp5ct8dacorder to

  A plane, flying horizontally, releases a bomb, w 1m37rucx1 ovshich explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the expsrou31vm xc 71losion

  Two cars collide headqvy2 z vc/tkq4 3si0eszhc zo1nl)876-on on a level 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's centn 17tezvs83 zvsi)0l 42o6zq/hqyk ccer of mass?

State Newton's second law for a system of partic(wr)n/o0khk+ j hh 9t;s(qawuze /jc.les.

  What is the momentum of a 2000-kg truck t yf,vg9)1kzm865niy0zvh yrpvtjt) 0 raveling at 35 m/s?

  A 1200-kg ferryboat is movxcnyjwh+5te0 4l3 u) ring south at 20 m/s. What is the magnitude of its momenthr xw t54 l0y+)uec3njum?

  A ball of mass 0.10 kg is dropped from a height of 12o 0u+(hm;61ak2 jd mmp0c kodd m. Its momentum when it strikes the groundudo0(aj0;om + kk2 1dmc mh6pd is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wit3 :qvu/in4t61he- eqkjl8 blth a speed of 25 m/s due north and the other moves iektltvq-4e 61 nblq /:uh3j8at 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, strikes a wall xo 9crg; u zza18m1j.(z/esuo8pgc /w and rebounds at 24 m/s. czpo9( ;8/cg1u.e x1gu oa8w/zsj z rm What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12imw;a fu bxg69jcar*8)to5 8b m/s, is struck by a racket causing it to rebound in th iaj9xt8b6mw5o ;c)ufa*r8 gbe opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching macbxd whm f-)s2:dudez8-/w hh .hine (excluding 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 machine?-hdm/bw 2 ):.8fhe-wzu dxdhs (Assume negligible friction.)

  A 70-kg astronaut is si yiu1 -8*bw zdnl.iq/pace-walking outside the space 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 does the astro.q1-i8bid nl*zy iw/u naut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a ls 4- uk,hyx8-zx6bzdt ;3o dvzarge object at rest. The small object bounces straight back with a mb-ys 8dzzk,xtd o;3z 4h-6uxv omentum of magnitude 4.0 kgm/s. What is the magnitude 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 mass), whpfglmjll+h. l; an0 xfh7 x4xd0rs84 .o is standing still, with open arms. As you collide, while holding each other, with +n 4jl40f.xd m.lsxf a;8rpl h lgx0h7what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road atzsz9l* ;0igl2xjudp0 a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision2d l9psi;zg l*zxj0u0?

  A 1000-kg car traveling at 25 m/s runs into 1z3kb fd-1bea the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the collision?a bf1k3-ze d1b

  A railroad freight car, mass 15,000 kg, is allowj6)u 6.ta+uhsu4+hzwl xb 6aied to coast along a level track at uzj)uxub.++t4wl66 6 haisah a speed of 2.0 m/s. It collides and couples with a 50,000-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,lh yw 2x h7z/7a1;h n,u*rhodjc(wcu 200 kg, rolls with negligible friction on a horizontal track ,h1wdh7nr/h l2c xj o7,u c*ywazhu;(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 moving after this happens?

  A 60-kg person walks oohb( oh;..w.n 7gpkj:ak /h ezn a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, wiwjh ;(ez:khhg o..7 bna/o.kpth respect to the shore?

  A 4.0-N force acts for 375ljc6 (wppvu l6*q 1rjd; ;n 5yjpijg.0 s on an object. The force suddenly increases to 15 N and acts for one mo5cpg16npu 6y i* 7;jldjwjpv(l;qr5j re second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2 e k9t0-kr ;o in/fnmax8gsc8;.0 s on a 6.0-kg object. What is the object's change ofaox0c;/sm8rfn8;ien-tk9g k velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a b9fakg+ 52 cgnrd-a,utrick wall and comes to rest in 0.20 s. What is the average force the car exerts on9 gucanfg 5krdta+-2, the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball.t4e 0rh6mfxg).d fa b back along the same path, 0fgdh)r4xtab 6e .m f.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 dropped onto a table tha3p /l/-z n xuyo7(akop. 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 fx ylu7oz-/(pha3k / naorce exerted on the ball by the table top?

  A machine gun, of mas2ewy8uwh d;n:k: t ,l pabdp.)s 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 the mtwp;wb:h2uye:p 8 d),.lk nadachine gun mount?

  A fire hose is turned on the door of a burnhlp)sf iw 6722 3oc8zme(sr yging building in order to knock the door down. This requires a force of 1000 N. If therml 7 ygs zoih6s2)3fc( 82epw 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 drainpn,m ++*omkncvipe at the rate of 120 kg per minute. It falls 3mmk,nc* v+ +no.20 m to the 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 velocity of 40 m/s after cji;b 0. nwmihzv/*h53.0 s, when fired straight up. What average thrucvz5 jm.0bin* hh;/iw st force does the rocket engine exert?

  Two astronauts, of masseflc7vr*2w s r7s 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. Wh*v27rlwf s7rc at is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s.,z5s6vl* ky fu 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 kinf6l5*v, u zysketic energy after the collision?

  A 0.10-kg object with a velocity of 0.2gbyl .* luff(80 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initfbgl 8f l.(y*uially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at t 6r34krd u0sl.io zbgul. k.4300 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 aftk lu6g4. k.ro.043sd lbztur ier the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-part;/jex x.fx9i wicle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collisi ./wxexxji9 ;fon 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 wit) 2,hxlp/ paqc3v3shf28 ixemh a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after thmqh) /c a32l 2pxxfphv3,si8e e collision?

A ball of mass 400 g moving toward the east with a st kdu uwg 71o/d7oj832c,k nkipeed of 3.70 m/s collides heak tig/ ud ud378n,kc2woo1jk7 d-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 ( l(5ewj fznyy-4r *tcof 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the co zjwtyy ncfe4l(5* r(-llision 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 4ie(.xx)h8qc+ujp /l q.0 m/s collides head-on in a perfectly inelas /.)(pj +xx8heqqcuiltic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, trav: /uv- 3,dqmgzwoznb )0gh 3p4uvg,yyeling with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the iu,)v bn -dq/ z4:,g wougmhpyz03ygv 3nitial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in n tt.r 6j);gabfrx /un.m m+)xa 2.4-kg block of wood a rest dire;x/u xt )jn+n)a6 mftgbmr.r.ctly above it. As a result, the bullet/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-kg car tratfmscmtk nz9)2pny9 ; dd3,j3veling at 60.0 km/h south. The two cars stick together after the collision. (z 39y9kdc2)f j3tn;tmns pm ,dSee 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 trave 8as:5+rhjydmic47a6/n4d zpw r r6kcling at 60.0 km/h south. The twr wd/c jr6kazs:4h arpn4iydm +576c8o cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Objectizn(;.wx ) nkt A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s.tkw);n.z (i nx 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 thenb 0o .zve,0cgh0xi5t 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 x0ic,oh0nvz0bt g5. e 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 mass sits at x:y*xcc m/0x.d8gxz yhm 6v 2pg-co /pp = + 21.0 m. Where is the center of mass on t:0cp* po c/v/x6xg.hdmp8zmgyc- x2y he x-axis?

  The center of mass ofzk q 8 bf/ ufg+zgz 9z;oq-lh+ueui0*/ a two-particle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. ulz oi;/0g -e*h +u fb+f9uzzg8/kqqz 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 wlxrhez k;y7n4f y/0 fk6e+f (kg at (2.0, 0), and 4.0 kg at (2.0, 1+fzl r;wf4eky(hn/6 f 07k xye.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0,4 986xpv v wyrc84lrwf 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of thr8l4pfc8 x6yv4r9 w vwe center of mass of the system?

  A 3.0-kg mass is pos;os3( ybmq1( m byqxb5itioned at (0, 8.0), 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 center of mass of the system of three masses beingx;(s3 byoq5(m mqyb1b located at the origin, (0, 0)?

  Use Table 7-1 to calcul+ ucftl,z1,r xate the position of the CM of a whole leg including the foot whe r,xlfctu +1z,n the leg is stretched straight out. Assume the person is 1.60 m tall.