What is the SI unit of momentufxk+w6us/tv; bfpg2zg+ 4 0zpyg6 t ;lm?

  When a cannon fires a cannonball, the cannon will recoil backwagjq zxizcg4 0xq6,o/) rd because the

  A freight car moves along a frictionless level railroad track at constant sp2/e xfyhbecj35m 5a( nj k85bmeed. The car is open on top. A large load of coal is suddenly dumped into the car. What happjee 8m/2a5bc5xk5fnb mjh y3 (ens to the velocity of the car?

  A child falls sideways off a sled while sledding on frict*vc i (/(mgenmionless ice. What happens to the v*g c(v (meim/nelocity of the sled?

  A rubber ball and a lump of put)ylnxf3( 6e7w ,jux4e aa/h ,r:jk kclty 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 putn6l, ae erx:w) aklky(/uc4h7xf ,jj3ty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m i1mpl2 /pj g8css moving with a momentum p. How would you represent its kinetic energy in terms of these two quantiti8/gm1 sppl j2ces?

  If you pitch a baseball with twice the kinetic energy you gave it in tvm 2-wsz+ij,qoawe;g uv1h6)he previous pitch, the magg+s61 wzqv ,uj )he; aiw-ov2mnitude of its momentum is

State Newton's second law in tei fipk br+: 21g.ecvynbl22 2brms of momentum.

State the law of conservation of momentuk6 *h yr)ly-qem.

  The area under the curve on a Force versus time (F vs. t)r0sve/ dpxdi5 8n6 +ln graph represents

  Which of the following is an zddr2ec ud3be.np r)5g/ 6zq4zsg00aaccurate statement?

  A small car meshes with a large truck in a head-ox,,p j +ky6mg8ah5ze wn collision. Which of the followingyw6 x+,pekg 5zh8 ,mja statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the ge up0gvfnb nk0.h168other blue) are dropped from the same height, and rebound off n .gnp0feg h8u1kv60bthe 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 ea;ldg 0gz8y2ed st at a speed of 4 m/s, collides with a stationary bowling ball. Thzd;80eg dy 2lge 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 e9 mu).xu;zncand bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.o 9tj cdhhq)1z,s* nsp8aod300 m/s. It collides head-on with a 6.0-kg oztd0n hjph 1oqa,ss93 o8cd*)bject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football lineba uor0rsf n:1l3cker moving at 2.0 m/s tackles head-on an 80-kg halfback ou10f3:lns r rrunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mom(ct bl ( -iuqsf(bv(9mentum is conserved, then which of the following statements is true about kinetic-c(t(s qumfbi 9l ((bv energy?

  When is kinetic energyl je-t;o f 396d:prugm conserved?

  In a game of pool, the white cue ball hits the #5,d qm4d .ask9s,fcor6 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The typs,9o 6a d.kcqfd,4 srme of collision is

  When a light beach ball rolliiquvv 9b9 r7. v2t8wibng with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approx7v8. bvt ii 2u9wrqv9bimately,

  A golf ball traveling 3.0 m/s to the right collides intbmb- 7..oes t a head-on collision with a stationary bowling ball in a frictiono mb7t..e bst--free environment. 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 cp2))or.om6wep md.e bollides head-on elastically with an identical ball at rest. What impeo b2r.p )dm).oew6s the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed vmy0-m*y0iqz 6bc g.(c(xw hjv collides head-on with a very light object at rest. The collision is elastic, and there is no fr(mh-0yq0*6w .x jgbc(y vizcmiction. 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 wit( )o-() +bpyo zqc3ps)jrcqb jh a very heavy object at rest, in a frictionless environment. Th(c +j)ry-bqp q()pobo)3szc je 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 yellow ball of r2m9 ruv9rc:lip+7wns-7 f ocequal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after thecs-o 2n7rfp9m+c u: 7vwil rr9 collision?

  A very heavy object moving with velocity v collides hvjz / bs:sg;+c6sq/ysead-on with a very light object moving with velocity -v. The collision is elastic, and there is no frictisgzsvb/+yq; /:sc6json. 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 whi).rap o eyr(uphjq6 v1bwj+(*ch of the following statements is +o(b6.eyjj)uh (rq1v* rwpa p true about kinetic energy?

  Two objects collide and stgtwigb3(xw:t x 84w 7vick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in n cq+ zj9ts0lc;tf-(w a perfectly inelastic collis(9-cl0 ctqn+ t z;swfjion 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 og50opxf it h4:bject and sticks. Which object experiences the larger magnitude of momentumtg xh0i 5:op4f change?

  In a game of pool, the white cue ball hits the #9 ball2reaf(1kxm3d fpg 3w8ul l1n 4 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. z97ioc 2nz gxwy9 l+i6bc zk,1*tj.t gWhich of the following statements is false?gx o7y. c9w+z,l 9iitkbng*z1t z26j c

  Which of the following is a false steqhz/(;jg c6qatement?

  Tightrope walkers walk with a long flexible:xy0 h0xw tlp y l7/n;nxi1-zh rod in order to

  A plane, flying horizontally, releases a bomb, which explodes es r,wgf3q 4:vtnydkq7;v .h 5before hitting the ground. Neglecting air resistance, fre5t4 q,q;k y:v. 7wvshdng3 the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisiew60ac-zb4i do( dv:h3bwu 0bon was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity czw b-b0 4d( dwua 0eh3:ivob6of this system's center of mass?

State Newton's second l*v; y3kbnrtvu r3:oi5aw for a system of particles.

  What is the momentum o1nifj r5n5-7jbx: ewuf a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mai;uo wumlh)46d6oa( (imb5x xgnitude of its momentumoi;4(u b5ixml u6( )oaxhwd6m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when i+2t,w u rtyezvy5l4n wf0xu. :t strikewwl5x e zuy+ntuvt:0f., 42y rs the ground is

  Two identical 1500-kg cj*; xjc,rdnb5l3 sk6c ars are moving perpendicular to each other. One moves with a speed of 25 3*6r5cs,dj xb lnj k;cm/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horiz-.l rdp kw lo)v1xee8(ontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the (d elxl r-kv w.e18op)change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of ruakj p ko8-0 vf qw -70w:+kk2wi7tkw12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. w:k jfpk-2 80w-t wr70kvkui7okq w+a What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is pi 5eeeon3c::ggq5- nblaced on a frozen pond. The machine fires g:-qeb:n 3ng5iec 5e oa 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 outside the sv,1pr1kjnk t s8;k *ekpace 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 astronaut move toward the capsulejk*,r 81k; ptsn1vkek?

  A small object with momwwp,y geucn2z vw x(5*a .,r1fentum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight backrw( 2vfu,y.,1ex an5zwc *pwg 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 (vhkqm*s(p 9d m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide p(qd(m*ksv9h, 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 level, straight road at a spe4 hb(;/0 pj2v mh. *srzb8rsmhchf7t oed of 6.0 m/s. It collides dir(jp r rmc/ vfhzh2b74o*bh8;m.0 hstsectly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling 4 sc)7(kyezpw at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and theyw k(4)z7sypce stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along az;6 wl2wt iz55sudsx(9q wtc7 level track at a speed 5zzdiwcltw(9s5u;w6 stq2 7xof 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 200 kg, rolj jie (/g6srq6ls 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 inr(s/ 6j6ig ejq the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a r o5e ,/fkjw8xk p;;tm100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to thej kte5;w/p;,mk x 8for shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to q2dgir60f m7jfw*c j i*r7 r6i15 N and acts for one more second. What impulse was imj6 *rir*igqf02dm fwj7c6r i7parted by these forces to the object?

  A constant 9.0-N net force act,egvwhmkc:vij-3x :7 y- z. uas for 2.0 s on a 6.0-kg object. What is the object's chan,h-7e-av: zci.vguwmkyj:3xge of velocity?

  A 2000-kg car, trave(ybl wcsno);h- i3 dw8ling to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on hw) o(lw;3c- nyi8sb dthe wall?

  A 2.0-kg softball is pitce 5rd8 w1naoil owif//6 ,rc-qli9f 6ched to you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, wha1 89r ffciidw lw/ar /5oei 6oc-n6q,lt 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 qozq 3 -n 7rwntub0w1.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 top7wo.uqn0rn1 t- 3bqwz lasts 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-gram bullets, with a muzzl gqme/cd ras/,yhb yy778 w7nvn*8 ,cme velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the grna,hn w7c 8yemm/vs*y 7cb 7d8,/qy machine gun mount?

  A fire hose is turned on the door of a burning buizkqnl8qiyd54z wj-tu 9i+ 7,g pje,y/lding in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce b9j4l /ui qed j ,yg-wnp57i8,yzq+kzt ack?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minut ad)(yh*1n8zs ixjm7e e. It falls 3.20 m to the ground. Assumin1n*ze8h j )7yd(mxsaig 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 hn0+)-mbqwt l3.0 s, when fired straight up. What average thrust l qm-h+)b0ntwforce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initi h:s19qzev2swp 2 r(opjdh(r9r-r7gv ally at rest in outer space. They push each other apart. What is their separation after the lightwservrr d p(:2hg9 9j1(q-zs2o7v hrp er astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed 2j ehztht85qzu g(z3:of 2.0 m/s. It collides in a perfectly elastic collisz 5t 3qghh:ztj(z 28ueion 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 velocity of 09afo t.dj p8px,.hw/92wm g gr.20 m/s in the +x direction makes a head-on elastic collision with a rpg/f9 ao8dp2.xgmtw h , 9jw.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 307mg8:bz,;:ft/ qc9d yktmgjb0 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 after the ;/gt mt yqfgbkd8bj,: c9:mz7collision?

  A proton, of mass m, at rest, is struck h :)xd w+ofs:3xxa (sxxead-on by 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-particle have after the collision? (Assume the neutron's mass equals the prot x: ao)3swx:sf+d xx(xon's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of yl 1b 3z: wr7tpox.j0hmass 10371o :yplwj t xrz.0bh0 g. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.7e )o3ugix*; xgawk n.e74 tk2l0 m/s collides head-on with a 200 g ball sitting at7nxe4ltk)3 2 eukwg *aogx.;i 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 wi8q+ sph1,ns uao3e 5do3qfp7nth a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collisiond315nfu3a peo+n8,q qh ops7s is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east aqf-ppu9n;vry ++p nv0 t a speed of 4.0 m/s collides head-on in a perfectly inelastic collisyq +f-;v u09npr vnpp+ion 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 parked station wagon,, 3kx-;+pkvphcya. m6u8x vhq who's mass is 2m. The bumpers lock together in this he; v,hkx6p+8.x pma v-q3huyk cad-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.+ my/gsh15 pyk4-kg block of wood a rest direckyp/s hy 51m+gtly 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 traveli1vbh pym+ev o1wnk9f . j6)m2; 8bbngbng at 60.0 km/h south. The two cars stick together after the collisi kvh1.)fem1+ mb9bno g 26byv8wpb;jnon. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h e/w;h7tqq rz 1 oadan06ast collides with a 3000-kg car traveling at 60.0 km/h s6/zw;0tna7rqo q dah1outh. 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 level frictionless krws6)f (+ o:pvbnf-msurface. Object A moves east with a momentum of 24 kgm/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 collionsf- bpr) +mwk6v(f:sion?

  A small bomb, of mass 10 kg, is moving toward the North with a velom1iv7fd 6s9kxej,zd 4y9tix8l 31mw mcity 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. What is the velocity of the thirdmvmzd8ytl 7si49w1 k,xx 1mid3 9f6j e fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at 4/ct2 ry5 fbjqx = + 21.0 m. Where is the center of mass on tht q/4b2cf5y rje x-axis?

  The center of mass of a two-par bwbl7hl s.7,.n:op2 us5 akxiticle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.hb.wlibk 7l 7u2nspsx a,5.:o0 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 l7t8j,sq x(g1b ctl7nkg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center o1gq7x jn b78cs(lttl,f mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg,c6qu9e 3:+ xvx2 c:grijj j(mi are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 mjm2r x(cjgqu iv+9 6xie::jc3), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8wzcw-9* 88 i6aocksd6 n0oxza.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 oc*aka89sz n 0w do 86wz6-icxthe 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 lmdlg 6b*ow/ws.t+pzrrk7 j, ( eg including the foot when 7d w/lrro b6t+ sp.(jwzmg,k* the leg is stretched straight out. Assume the person is 1.60 m tall.