What is the SI unit jwpj 6ei)*+ w-r4nqagof momentum?

  When a cannon fires a cannonball, the cannon willa l,xgazd 33 mkd,9e7z recoil backward because the

  A freight car moves along a frictionless level railroad trac51 fldj wulr,6+vg :zhm 0n5hwk at constant speed. Tj uh wnh m56 +0d1:vlrl5g,fwzhe car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sn vh a znej9;j9w.y2bx4iu -:kledding on frictionless ice. What happens to tawb 9.9enxy j- 2ku;h:viz4j nhe velocity of the sled?

  A rubber ball and a lump of putty ha48 vqpeo u a327tg wnt5*aevi)ve equal mass. They are thrown with equal speed agaa 3tpee 45vi82 *o7vq gunatw)inst 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 change?

  A sailboat of mass m is moving with a mom3nsoia)w6ndc 7tl i4nl: sr7r8foy/7entum p. How would you represent its kinetic energy in termow)7 cnitnrlafosl3/i :s784 d7n6rys of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in thz.rof/ hh*58lo; zv:,0glh2yfvl gj he previous pitch, the magnitude of*;,2f/llgo hhf8.vghy j l :zr5oh0vz its momentum is

State Newton's second law in terms of momentumjd;z-k2 3 , bawzce6jb.

State the law of con+7re3rpdc1,ax/z lh u servation of momentum.

  The area under the curve on a Forcfc ;sp0( ptq)lqry 28fe versus time (F vs. t) graph represents

  Which of the following is 6hoc615o :z-0sty6 sha cw mcoan accurate statement?

  A small car meshes with6qxha20j7maib:jn pt 2 3ocj,jd- j7t a large truck in a head-on collision. Which of the foll-oajic: dm 32 tjxt j7hj7nba,0 p26qjowing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same heid xhoe3xj8a3.ght, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitudxjx3h 8oed3 .ae of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary er l;i .(o8 0qqmxdz( xq7-gtwbowling 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 e(i;xl-zt 7q0q(xowrgd q 8 m.collision?

  Two objects collide anr1y+)q ;un(60zz xq itd5xwt z*pqw4md bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-o:mum)h .y cbu3ew c:+;ovmah4n with a 6.0-kg object moving to the left at 2.0 mhw+:)cu :myo.hcv m4m; eau3b/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg ha1m q*wq; xtoq.; iqi)flfback ;qm)t* i.ixq ;ofwqq1running
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 lrkl*ps v y:t;e1g ep)++vss6the following pgl+:6 +ss )svel;*tp v1reykstatements is true about kinetic energy?

  When is kinetic energyljh1(s +2 lgvq conserved?

  In a game of pool, the white cue ball hits the #5 rl-wxflg:*mx2; *u6zt y uf(g ball and stops, while the #5 ball moves away with the same velol;xu :xtyw fg( *mu6lr2g-f*z city as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 q u3em7(ip4 .jxk mwu5m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatuiekwxj. 7q 4u3 pm(m5ely,

  A golf ball traveling 3.0 l7k- vn 1n -emh6hkm5km/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free enl kevk h7mnn hm-k156-vironment. 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 collidesppt8-. 3r sx;x uxtzm1 head-on elastically with an identical ball at rest. What is the speed of thep1x.xm; x3rt-8 t uspz initially stopped ball after the collision?

  A very heavy object movih )6/k,1u7p xb eov;6dnjktksng with speed v collides head-on with a very light object at rest. The collision is elastic, and 6kh17; v/u k6tbn,)jksdxopethere is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very heaq,vz)l* .;gtmhte6swu5mimhp2at0m k 4 6)vzvy object at rest, in a frictionless environment. The collision is almost perfectlt )v,ktp2sg.)5v6mham 0m * itlzh;m wuq6e4zy 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 /9r h.z gaql9tequal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball afqh/9 .rzgtal9 ter the collision?

  A very heavy object moving with velocity v collides headn(hae-s1i : vl-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely sloli ns-(hv:ae 1ws down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which 8vn cipxl94/i* 4cgp f7knzv *of the following statements is true abo9cg/* pkx 7vc lf4v*ni n4zip8ut kinetic energy?

  Two objects collide and stick together. Kineticu2wfpn 7 (1oqqsn -5 zzc4mxn1 energy

  A 3.0-kg object moves to the right at 4.0 m/soeko 3u/jtyl90 np) w3. It collides in a perfectly inelastic collision wotje0 )uklo3n9y3/wp ith 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 o (os:zdr nq6uw2(s2kzbject experiences the larger magnitude of momentu (kwou62sz nd:qszr2(m change?

  In a game of pool, the white cue ball hits the #9 ball and is defle o7wrraft gnm.rd5/z)1 ngp+:cted 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 followmzo*pp9n p:0p 8ivy9l ing statements is fals98vyo09 : plp*mzippn e?

  Which of the following is a false statemezl -5sp k9(5t.nhpvjent?

  Tightrope walkers walk with a long flexible rod in order 6 8e/duc4.gh, cohnjgto

  A plane, flying horizontall,9d5 l0 :p (agnoelqeny, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb foq,a: np deen95( gl0lragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Thepove+ lo2x0r3qpr3:i :ayf d36 fbp.p collision was completely inelastic aye:lpf3p +q io :bvr.6fa3 2d o3rxp0pnd both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of parzo z;x wrj4u+-)c nl:dticles.

  What is the momentum of a 200/gyqz g,-o 6 o:h6rxms. iyus- 6sbqe20-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of bx6..w(v sg qgits momevwgqb. g(.s6xntum?

  A ball of mass 0.10 kg is dropped from l jh 6 mswmw2ighi(7-3a height of 12 m. Its momentum when it strikes the grou6 m 3gli-7hmjwiw(2h snd is

  Two identical 1500-kg cars g5gxl*-t9o 5;z udjg xare moving perpendicular to 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 to-gtg* zg5 xdx9jl5;uotal momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 6f3 .n)zmi;fxe(tq0 /drz m oa30 m/s, strikes a wall and rebounds at 24 m/s. What f;f.nx)z( ir06tae 3/ oqz dmmis the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is st v68 u9 mx/nfqh9uuc /(cdlsp4ruck by a racket causing it to rebound in th u94vsx6/f pn8m(qdc9lc u uh/e 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 pl2,ic 1rbm vzb,aced on a frozen pond. The machine fires2z ,b,vir1mbc 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 oyx(48d. jo m;xnoz8sbutside the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule h.x ;mb x48s8zyoj o(dne 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 k0 l( 7bd,ne;3cxczyz sgm/s approaches head-on a large object at rest. The small object bo,cesbz7x3 n ( d;0yczlunces straight back with a momentum 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:xlehy96vdr 3m,/t g4 x/pp xd), who is standing still, with open arms. As you collide, while holding each other, with wvmxy p,dpr9ehx t3/ glx46:d/hat speed do you both move off together?

  A car of mass 1000 kg mo,;us6ahov- eh ves to the right along a level, straight road at 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 colo;es,h-u6avh lision?

  A 1000-kg car traveling at 25 m/l/jo. /yk7d fzs runs into the rear of a stopped car that has a mass of 1500 kg an.z/ 7dfoklyj /d they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15, rsiqcsa t+ly4lr )+j5u03 :vf000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It collides and j3qta+srrcu0llysi)f: 54+ vcouples 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 200 kg, royr3s viw5h pqa(1/f7glls 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 landswi/ fs(qay grh357 1pv 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 rw +gjrlj v*:ex1rj;. oate of 0.80 m/s (with respect to the log). With what speed does thr.1or g+jvlw x:*jj ;ee log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on angvod) -c0z5(r-f 1qv) yatawiy,sp3u object. The force suddenly increases to 15 N and awya0s-gop 1t ) vufz,v(c)ay 53rdiq-cts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 ;y/p vll8;bzngn3 8g ss on a 6.0-kg object. What is the object's change op8nl v/ ;gys8 nl3bz;gf velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brickr-*n , ikzlnwne8+ .pm wall and comes to resl.w priz,m*e+ k8nn- nt in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you r;tk,l3 2r. g-oddidd at 20 m/s. You hit the ball back along the same rd l;o.dd,rkt32i-dg 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 dropped onto a table top. The speeds of the o2h ydg6g19 knball 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 las16ohgkyn9g d 2ts 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-grk-jt.fw-7yv(;2+pnja-x fmf3c ua hram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force ea nm(a;h - +vxft-kjjf-p.uf7 32wc ryxerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock*g)eq;ahun .a the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum v;u*h a)anqeg. elocity 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 minute. r17 o9 2scnef4unob)m9ku9a hdgc 9a3 It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force cun42a9)h9ma ugdkonf1 9brec9 so73does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, rmhue( y:dpr1y/+gx 3when fired su+ hrp(ryx3g : my/e1dtraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 6o*nzml; emy:xq(ww 6 ;0 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the ww*zome( lym;xq 6:;n lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It ys hmc(t mu8,86.nlmhcollides in a perfectly elastic collisious tm8(8mlmh .h,6cynn with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a venq(z)tq lj 44a)cj9qlajc q -0s* (lsxlocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rec)*x(0lq-4qsqjjlt)q j c 4 az(9slanst. 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 ble. w 10xuee7yaock at rest. The bullet emerges (the bullet does not ge a1.x0euey 7wet 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 bys(h r/er -lhnbj/a3i) 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-parls-reb hr/)/ h(anij3ticle 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 statii.ny+9d aw ul4--lrbh onary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after dr-+uwlib4l -9. nyha the collision?

A ball of mass 400 g moving toward the east lk-.cq2g9 o u(u4ji *qlc5mpkwith a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly ela9i g(*clkq.luk4p5o j c-muq2stic.
(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 withfn.-6 -iv*ibab w)lrz a 3.0 kg mass at rest. If the collision is perfectl lwbaibz *iv-rfn)-6 .y inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spep7- wb djsaa13u+32lhm w9ycfed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this colliw clw2 pafs-+3 yd3mba9uj71hsion?

  A car of mass m, traveling with a veax x/cr wez h;9/g+n/oh4 up7slocity v, strikes a parked station wagon, who's masn/z ;s4ru9hg+xwx//e7co a phs 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 21 cuu1rg) p0+mr/sbmr 73 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above mb prg)r+1 cm07/s uurit. 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 ps8y;eg2r.rvte 2 ucve3 0es xnl4 72bcar traveling at 60.0 km/h south. The two cars stick togetherbplsrng 2 c 4ee2u738ee ;s.xvy2rvt0 after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelzw6:8dwcbzn7 g, cm*oyb,ny5ing at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south.,dn7y wg,c8by:n5 mz *co wz6b The two 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 leveqn)wjn1yi (r ;l 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 inelasiy ; jwq1r)(nntic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving towsokab 5f)z8zj.y5v2q s86kjf ard 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 third fragment with a mass of 1.0 kg. Wska 8z5of fb j.6jk2 8v)zy5sqhat is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and sxi y+ ty21gq2a 10.0-kg mass sits at x = + 21.0 m. Where is the ceiyxq1yt s g+22nter of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is lzh i+5a :j:tvbocated at (3.0 m, 0) and has a mass of 2.0 kg. What is the lo hti5av+:bjz: cation of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0s9 nn;4cjftquw g7w.3 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass4 9w7cwt.gnquj3f; sn .

  Three masses, 1.0 kg, 250 o9m6 f nnga2 ,lvzr8qss66 a4vgtcg.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of aoq9t6f gs vg46s0av 56 mnlr 8,nz2cgthe system?

  A 3.0-kg mass is positioned at (0, 8.0), 2aix59s5uwj z6h ym*nand a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will resu5u9*z5x ia2sywh njm6 lt in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg :bkcm-(z +cun including the foot when the leg is stretched straight out. Assume t cz-u( :bk+nmche person is 1.60 m tall.