What is the SI unit of mompohsw9 f((x 4bge.i) mentum?

  When a cannon fires a cannonball, the 6,csc /8ck5 bw9cqxk rcannon will recoil backward because the

  A freight car moves along a frictionless.; : fgakn. iz6xlu:nf level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dum l ukxnnfaz:g;i: f.6.ped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled, e 3p+)3y-ej+vrrco m kgk5ru while sledding on frictionless ice. What happenk kr- )r3yopme ju,c3 vegr5++s to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equalttb qn5qtz53 * speed against a wall. The ball bounces back with nearly the same speed wt3btq t5qz*n 5ith 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 itc-c61u m /t(5zcumsdgs kinetic energy in terms of thescusm dzmc1ct-( u/5g6e two quantities?

  If you pitch a baseball with6ljiu (eumv*4; pd0dk twice the kinetic energy you gave it in the previous pitch, the magnitude ip* 0ujm6kudlv4 e ;d(of its momentum is

State Newton's second law in terms of mj ;8kw j,cj-boomentum.

State the law of consetsn:rf;s;zkai 5 j7o*rvation of momentum.

  The area under the curve jc:3 9h..okytjyx2 j kon a Force versus time (F vs. t) graph represents

  Which of the following is an accurate sta f*50md x vrhoyq4*+tma fe+(wtement?

  A small car meshes with a large truck in a head-on collision.3i:v n2zceej( cc*n*c Which of the following statements(2encni:v c 3z*jc*ec concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dro/zxfxv.+7d8 dubkz nd 58nvm3pped from the same height, and rebof75xzn znv3dk8 v/8ux.d+ m dbund 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 floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides rm -)c)hklzv:, )ptqm with a stationary bowling ball. The Ping-Pong ball bounces back to ,ql)tkh:-r ) vmpczm)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 eachw yho.91hgc,djssroa1,) ha6 other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on wiiixuo0,j a*-iuv p;:s,mvq/v th a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correc-i ,u/v,isi 0 am*ux :j;pqovvt?

  A 100-kg football linebacker moving ax63)h 7sll/j4p*mb tha oq*pqt 2.0 m/s tackles head-on an 80-kg halfback runninhsp/)*l4q t o7jq3h6pbxm * lag
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conser7t jy65 l3fswpved, then which of the following statement7yw6 spf53j tls is true about kinetic energy?

  When is kinetic energ(vmb +5fajv +by conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while thpndtq*y/6e t,e #5 ball moves away with the same veloctt6y ,qdne*/pity as the cue ball had originally. The type of collision is

  When a light beach ball rolling win 0+2c8gm2rrdz9-*mkxmz jbs th a speed of 6.0 m/s collides with a heavy exercis+2kd9-cz nb 28*r r mgzsmmxj0e 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 heh8 *pv52gqrwl ad-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 *qvgl h8 5wrp2the collision is

  A rubber ball with a suz, :m: axftd(+2rf yzpeed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball af ydmzx+2: ufazf,:( rtter the collision?

  A very heavy object moving with speed v collides head-on with a very li xu 41,6aoydw/4wrgd(u 53dnj*wl xz eght 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 after the collision3x4w*j e6onddguwwx ,a 5ud4rz 1(y/l?

  A very light object moving with speed v collides head-on with a 5,a+qdh du:d;nwv xjb;:k*fpvery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after :,qud*d;+xvhf dp:jw ;na k 5bthe collision is

  A red ball with a velocity of +3.0 m/s collide;x6,rf2uswv x+8nfx 7 ,jhozqs head-on with a yellow ball of equal mass moving with a vosq; uz ,,xhv8j2wfnr6f 7+ xxelocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collidwf/tpbt0 : j4s*dmxd.es head-on with a very light object movit:s*d m 0jtpb4.w f/xdng 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 consmox/ beai l,:1erved, then which of the followin bo:,xi al/em1g statements is true about kinetic energy?

  Two objects collide and stick togethe+5vk* tc3 di4my qjgmw)z -4abr. Kinetic energy

  A 3.0-kg object moves to 02hr6r.rzl 2f*g ufi7 vnj9 wgthe right at 4.0 m/s. It collides in a perfectly inelastic collision wf 9g2nfv j 7z.uwr l*gi026rhrith 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/m 1z-t9 tz:*iljnlqx large object and sticks. Which object experiences the larger magnitude of momentum chanz/i:l-qlj 1 9ztxmn*t ge?

  In a game of pool, the white cue ball hits the #9 ball ek1 b7tb0jv 0qand 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 followig2zox2 t/(vqqng statements is false?xgo q(2 vtq2/z

  Which of the following islm6b: gz,uh :k a false statement?

  Tightrope walkers walk with a long flexib: qpry*1sq(h*ig-bnhle rod in order to

  A plane, flying horizontally, releases a bomb, w vv+x ;f;u v,p:ett.hphich explodes before hitting the ground. Neglecting air repv.efp,;ut v;v : x+htsistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free mgkql0jmm.ii v377i2 road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity o7jl3giv mm7.0kqim 2 if this system's center of mass?

State Newton's second law for a sysosv:kt2bq w7-t3v+ kb tem of particles.

  What is the momentum of a 2000-kg truck traveling at (v8pyr-;fbix yc.2ll35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of i0pc ;majsxi5 4 3lxpl 36yyxz;ts momentup6y0 zmx4 cjpxl 3;sx3ial;y5 m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum whenoyipqgg )qv:u ::-l 2k it strikes the glq :)vk2g: g:oiqu-pyround is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wittf5dc )c0sfu6 h a speed of 25 m/s due north and the other movecdut ) fcsf056s 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 lyf 6- jbqs o9vn93w4am/s, strikes a wall and rebounds at 24 m/s. What is the change in fya6j-o3l bnq9sv4 w9the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed ofhdm18:+v j4h yi,qemb 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 momentum o8,i4h+hmb jv1 yqm: def the ball?

  A 50-kg pitching machine (excluding the baseball) -f 3fp-5jhbc4 .n2ejk*is*rra u bc:gis 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? (Assume negligibgj4bf su*k2c3- :a.hc-r* 5 nrf pbjeile friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationar dsr:m*)glwj*sdf0 2m y when the tether line breaks. As a means of returning to the capsule he throws his 2.ms0sjw *d )fdr2l: *mg0-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 approacva0yk b xpw*se /o51)b6bgs *r:(dce uhes head-on a large object at rest. The small objec /* e15(p0bb v)ou:awsc *6xrbsgdk eyt bounces 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 40hjzs)ht -j-e6ig(t4a( yh qt.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you c(6gajtytseh4 hj z0 )(q -t-hiollide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves . 1;e4k3g*vx on y8* upxckuokto the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopp4cu3n x.o; exv*o1 kkukp8gy *ed 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 dlmt6( e8 g*p:7taygk of a stopped car that has a mass of 1500 kg and they stick toget6e(gkdmp *l:87ta gyther. What is the speed of the cars after the collision?

  A railroad freight car, mas kto,z5+npuin.8+ m+u ts r*xxs 15,000 kg, is allowed to coast along 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 and with brakes released. What is the speed of the two cars after coupuknt,pr*+ + i+o58 xumz.x sntling?

  A railroad car, of mass 200 kg,pzk .y9pc)rm5 rolls with negligible friction on a horizontal track with z my.)pp95 krca 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 on a 100-kg log at the ratw8 4yw,kfmc 20ca)yl me of 0.80 m/s (with respect to the log). With what spw 8mfw2)cmkay,lc 0y4 eed 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 increasesc.06 dzllwq5m+q5 le )y5v.(f qwtmcp to 15 N and acts for one more second. What impulse was imparted by these .tm)z.qqwp l+c5yeclf0 (qmv5 w5 ld 6forces to the object?

  A constant 9.0-N net osx6es75v7 m;bclq,t force acts for 2.0 s on a 6.0-kg object. What is the objectv57 mtqocessx 6b;,7l's change of velocity?

  A 2000-kg car, travelingxk;iww8uadk .t/c/;q64s r aw to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What rtsu; /ax ia6wkdw4kc.; 8w/qis the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball ba /400znhmie*l9tvnk a ck along the same path, and at the same speed. If the bat was in contact with the0 9nn4ehazm*ilvt/ 0k ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onc)h9 x gy 9hz,cid)u 8/h,burgto 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 i99bdc)h/h,g ryxc,z8u u) hg0.15 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-gram bullets, wml+b3 o863;u oz/;tx(cgdvkna gn)bpith a muzzle velocity of 75 g63mpu)z n (ov; cn db8l/a3xtgk;+ob0 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock t63pozrmu* kxe9uo m* 6he door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minmx3uo k6p *euoz 9*m6rimum 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 minute. Ih )i.hmsbt42 yt falls 3.20 m to thmi.s2h 4byt)he 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 0zva0q6o2avnf)3/y fuo lc1eafter 3.0 s, when fired stv 2ay00fulf1v/enqca6 o )3ozraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rn3h,tv0d lc g0hc e1(eest in outer space. They push each other apart. What is their separation after the lighter astronaut has movedl1 tc e(30c, vn0gdheh 12 m?

  A 3.0-kg object moves .)7sq90iisq uzvj o;yto the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object movino);ysiuqqi0 j. zs7v9 g to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hm/ v(z) ugwjpiqjbjr 9,+ x7sto2-*m xead-on elastic colliu /mit 7+v(*)9bxqg sr2jj wpxmj-o ,zsion with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300ln9z30rxi hlkb/v 6h/ 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 936 / hvrlb/h0nxilk zthe velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an ablig8v vovw25xzqy 8 , xpw/.4lpha-particle (which consists 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 col xvlwx8zog8bqvw4v p,2i5/. ylision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball movingd r7kkj+r./ ra +10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball j+ a7rrr/dk.kimmediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collidesqz)w5 p.dt,i j.msy1j head-on with a 200 g ball sitting at rest. The isjt.zm,y).5 1dj qwp 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 c3+bb 0kfzvqyq4e + ow;zz hn29khv 8t4ollides head-on with a 3.0 kg mass at rest. If the+ef zq0+vbw 8t4kvyz q43khzh9;o2 b n collision 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 4.0 m/s coe pwh5z.. w ff0qbk-x0-yfxy9 llides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this f yex .-fbh-x w5pw09qf0.zkycollision?

  A car of mass m, traveling+vp:blfti/ d4 3p(wc y 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 tifpc+3(4:/ pyvdlwb of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction b wm2tg,qxue8:uries itself in a 2.4-kg block of wood a re2xwuetgqm 8 ,:st directly 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 coo0 xd94jf cj/xq yv8.cllides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision/ocfc8.0 djxvx4j q9 y. (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 t7g 5f6crue;a traveling at 60.0 km/h south. The two cars stick together;ru5eaf tg67c after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level fbyc.ecal4t4hap 3ux e- ,7.h/ugz 6pfrictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a pe7b cue,lthgzc.pfy4 a.e u-h3a p46 x/rfectly 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 velocity oyz-e cfhif .d6:)/ 74nuqb snvf 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8. f4.ces7u: fhvn d/)i-nqyz6b0 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, and a 10.0-kg mass sits at x = + 21.0 mxtf +mvrpo7e5-x5ju 2. Where is the center of mass on t fxx55pm+2- rj7uo vtehe x-axis?

  The center of mass of a two-partfjn0 ,2p/ ,vtfmmmok/brp6n+icle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.rpob2n,m + k0/mvnf6/ j, tmpf0 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), 2.0l- ua,fohdhfg*e1wqdu y, j)fs ,r;91gkg: 2c kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine th, g9g*,1ywk,: l1auuhs d - e2fhordqf;cg)jfe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 k7sla nq)reh/dx7uv4 lr1 oxjw*nh 4:4g, 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 the sl:17r4 4ov w7xqhh)nx4/* a delnjur system?

  A 3.0-kg mass is positioned at (0, 8.0), and r18,8peyv, mgmjm y5ja 1.0-kg mass is positioned at (12, 0). What amypr8y j, 5vem 81gjm,re the coordinates of a 4.0-kg mass which will result 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 C7t1 oyp,yh+d63yi l bhM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m taly731 hd6 yoybplht+i ,l.