What is the SI unit of momevqx+woy o3n9b-(h jbju (1h.u ntum?

  When a cannon fires a cannonball, the cannon w,i8 4 mdw.p,;vw wlatelm9) mwill recoil backward because the

  A freight car moves along a frictionless level railroad ir t295qxgka6+emet16,rec/j zkjr + track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity ofk 5e/+zt9j 6c6mr+ax2 rrqei k1g,tje the car?

  A child falls sideways oftd ,dpn)9m6k; d:ebyrf a sled while sledding on frictionless ice. What happens to the velocity of tkbpdd :m 6;9n e,dr)ythe sled?

  A rubber ball and a lump of putty have equehxcf,0 crrf 6m/41nn90 cvpial mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which obfc6 0m9x4i/rf rv hn0e,c1pcn jects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How w3m0bia zyt; 9eould you represent its kinetic energy in terms of thesemzbaye 0i ;t93 two quantities?

  If you pitch a baseball with twice the kineticsnoqz.g8(di +u 3 )uzv energy you gave it in the previous pitch, the magiog.()unv8s qu3 +zdznitude of its momentum is

State Newton's second law in ter8h n2ee3pys6kms of momentum.

State the law of conservk gbnl0 s5n;0h4uf.mm ation of momentum.

  The area under the curve on a Force vez 2vt27tv;hwi5s+ n/i8zvq cdrsus time (F vs. t) graph represents

  Which of the following is an accurate statemenw9jw h8nb1 .cu+f v7xay6xe,kdz ri,)t?

  A small car meshes with a large truck in a head-on collision. Which of the fiducp-+d7s 6m ,bk 9ib 9y0e5q 3ibhbtollowing statements concerning the magnitude of the average colbs-qd,bk y h 95+d cmeubii7i9t360 bplision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same mb)bkt8w u1j c3d6, *l0xjknjheight, and rebound off the floor. The red ballj xulb0t j8d) 6nj*bkm1c3kw , 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 a4j /v o4 k i7+ dwemwzrqki8+mu. 33ohnsqg8p: speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the+qw g8 m8qe 33ioo.hmj ndk4s4v7p+r u:kwi/z 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. Lineayz4r9tk(j 2 h-- kfpmwr momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0trtl. ue 9tk3bu(1n arak8(q)-kg object moving to the left b3qr9.taku8( entlt) a r ku1(at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbm 8 a p td.pzxl8nx7xt/3q9jp6ack r 368 xqtx/n8tj7ld9zmp .pxpaunning
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 the followfat bo;v)z 2j5g*np9jfmq ;k 1ing statements is true afjbq mvkn tj )9p ;z*g1;aof25bout kinetic energy?

  When is kinetic energy cons qaj8l (9-5 kigfftgr8erved?

  In a game of pool, the white cue ball hits the #5 ball and s./cp xu/9h8 i4woum2wae ux /jtops, while the #5 ball moves away with the same velocity as the cue ball had 4wci8w/xh umu 9/ ue /a2jxop.originally. The type of collision is

  When a light beach ball rolling with a speed of 6egza l- ,bq(/v9w7yo g.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, appr ole,-7bqy/9gzg(aw v oximately,

  A golf ball traveling 3.0 m/s to the right collides in a cxrro,4gviljhx :6h,qhr9 (4head-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 immediate,l(hxri hq h44, 6r9x cgo:vrjly after the collision is

  A rubber ball with a speed of 5.0 m/s collib *ek3ib h:iy46lztb1n ;n xr9des head-on elastically with an identical ball at rest. What is the speed of th x;6l3h4:z*9k nibtbnr bey1i e initially stopped ball after the collision?

  A very heavy object moving with speed v collix b0dtx- r9nvyi*(cu ;des head-on with a very light 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 vb;yinxxt( *d u0-rc9 after the collision?

  A very light object moving with speed v collides head-z7)lr72+ v6c htn -iq :r;o bntvtr6xdon with a very heavy object at rest, inoni7vn- txh:rtr);dr+6b v6c2zqtl 7 a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velo 4kmp kbpa2wu-r:/9tj city of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yeltm-rpp :k9b/ 2 wa4jkulow ball after the collision?

  A very heavy object movingw +h+:)xdgsq er9un0u with velocity v collides head-on with a very light object moving with velocity -v. :nxgqru0whed9 s+ u +)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 coll1n 9n,;aufxgh ision, if the momentum is conserved, then which of the following statements is true aan, x9uhg1 ;nfbout kinetic energy?

  Two objects collide and stick toyw,e( 7;9fzxq wob8ujgether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pe vn11a0qtgn1gqc op6 7rfectly inelastic collision with a01qno7 nvg1c1ap q6tg
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 omx*siu9a0s/bz) 3lajbject experiences the larger magnitude of momentum c) s3l9/ a*musxza0jib hange?

  In a game of pool, the white cue ball hits the #9 ball and is deflected pzt 9o tlau :etrtkt21+)1n4o a2+eceat 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 ofu )5hs (ekngn1 the following statements is falsnhk( 1)sne5gu e?

  Which of the followinv h/qec(r3 xl*g is a false statement?

  Tightrope walkers walk with a long flexiyg2j /bfs 9r,bba18srble rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting t ufs9*mxh+wh ck;(a q6he groundxq (sc;9m+hwua f6*hk . Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was com olb rk377ofq;dp0ss /(yfmral ,2q7npletely inelastic and both cars quickly came to rest during the collision. What is true about the veo/b lr s;lqk(od fnfm7 372q 0ps,ry7alocity of this system's center of mass?

State Newton's second law for a 7as5ndncc9eb2 a( h9a system of particles.

  What is the momentum of a 2000-6;wu owo .i(tgvgn2,el +nv ea)q37iukg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Who 8k5rqo +)qn4xa)ao+bsv mp -2u,y euat is the magnitude of its momentyer,sm5 o )a+q ap qv-8xun4obk)+2 uoum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentuw x7)9dbxe15kwywb, 7yc q(*)x qvte r/, qpmqm when it strikes ttw5 m(d *eqc)exbk q/ ,wxy,w7q)y9b1xvrp7 q he ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wit k 537um q 3bi9k;i,kitk-eaj)idrr 1dh a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of theidjk3ikk ,a- tuib5 ); krd39rim7q1e system?

  A handball of mass 0.10 kg, traveling horizo coh-cm:: j) gelf mrbw3j(,*sntally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the chanh m,ofj:: c(s) emrbl*cg-3wjge in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/sr4r*bk c ahknq.i,zzk9 n84k2, 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 momentin. 28z4 kk ,k c*nhzrba9krq4um of the ball?

  A 50-kg pitching machine (excluding thwh5 f21psrmbd0 u xw*8e baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball withw8h dpm 021r*wxfbsu5 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 s; c9,(gtpj q yj.lc se,o.e td1hq8lm/pace 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 wh s.hc;p1,qyl,dg mej .t9j(/q8eloctat speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approal / mx1uhqnlr(u:mag0 kks5-j b(6m9 hches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of thm:5qb( l/u6am xrkgu-(9 1h shm0njlke large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kgz77 xxoe30sv3lc8u d2vq+ lch mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off 0 7xxslq hvelv83u o72+dc3cztogether?

  A car of mass 1000 kg moves to the right 1 zmzb*sh :1dyalong a level, straight road at a speed of 6.0 m/s. It collides directly with a st dmzbhsy1*z1:opped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs int18odia/zsvl)b1jv4 s o the rear of a stopped car that has a mass of 1500 kg and they stick v1ajbo liv18dz)s/ s4together. What is the speed of the cars after the collision?

  A railroad freight car, massmax (5wqya g1. 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 two5aagxw (1q .ym cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a ymx.:c z 2;*fhz2 d(swej2j gqhorizontal track with a speed of 10 m/s. A 70-kg stunt man drops sth:2f.j;ewsjyqdx z gm2 zc *2(raight 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 rate of 0.80 m/s (with respect to ty c:hdzv/ 6 9hnq-h6pxhe log). With what spdc9hh:n yv/p -66 hqxzeed 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 increagv8feu xjm4;3 ses to 15 N and acts for one more second. What impulseu384 ef;jx vmg was imparted by these forces to the object?

  A constant 9.0-N net force acts foob;le r6 s.cn,jsw3 .gr 2.0 s on a 6.0-kg object. What is the object's chan.s3eolwcg6s;rn j.,b ge of velocity?

  A 2000-kg car, traveling to th vxop)+zs f3f7oqzmtn.( .j-k e right at 30 m/s, collides with a brick wall and coqx(3 fp7-nt v.m. zf+sokzjo)mes to rest in 0.20 s. What is 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 )(.wvd; pbkbme9l(t2v 6sswcback along the same path, and at the same speed. If the bat was in contact with the ball for kslwbv;) s9 .wt ve d(c6bm(p20.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. Thems4 wdt ,fgk m2 0y9nqir-2cw/ 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 4r /sgny9fi2 -,qtmd2k wm w0c0.15 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, fire8: ) upnvmro1as 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per m:18pnoa urmv )inute. 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 tjic0r,1ybb-n+vle5 mhe door down. This requires a fy - 1ij0me +nbbl5rcv,orce 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 back?

  Water runs out of a horizont p0 szexx2 61cpxxq,o4al drainpipe at the rate of 120 kg per minute. It fallxx210, z6 pxpoqe xc4ss 3.20 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 3.0 s, wzavxv5 rbfm xhb yo g6zcvzx7:0tc+.4.g(0 /phen fired 0hf0(x m ygc7o rc. :gzb.vxp bzxa4+6vv/5tzstraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg.; whk1nl2pej14 dzj r, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has kj4 helwp.1n; rdj 1z2moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 r1 )yo3gje)m*)hk .bjn-gwf i 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 energ- f.hwm jikrjog)1g) nb*y)3ey after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in thee8qwhzge5*h yt s60b. +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. Whatez *5b0q g.tye6sh 8wh 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 pyj8za yc6j2 20dtots, ;u.pt1 *dwih 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 collisioda1tshp.ci8tdz2,6 oy j; 0yu2wjt * pn?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (;sqhkn95,ppo :olayr x(ef+u1 30 hlfwhich consists of 2 protons and 2 neutrons) moving at speed v. If the collisi:r3pyh,efkfso n9p15 u+qx;l ( aoh0lon 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 ad it*- c;ph6a3 hsia*ugx.p;v stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collisi;h6*dt* pagihs -vi3 cxp.a ;uon?

A ball of mass 400 g moving toward the east with a ovhw.au/b)*-t4wvk(/e rnu)qqme j5vvg 9e0 speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. *rh aeov(/vt.)b e0ek9/v5qu)unwwgq4 j vm - 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 of 5hs t9bdjp;3x+,m ra3w .0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collisia+jt r9 d3 xp3w;m,bshon?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-on ia9e9 b4yrh4 enn a perfectly inelastic collision with a sbrnh4y9ea 9 4etationary 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 st so ujlq3s; -rum(s8a6ation wagon, who's mass is 2m. The bu;s-jou(r36s qlu a8ms mpers 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 213 m/s in a verticaa)qky:8;w3ur c06brn 5bjcj4u ,y w mzl direction buries itself in a 2.4-kg block of wood a rest directl;ra6,k 54r:qj )w zw0b8bcc3jyumuny y 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 witfyn l*at j7-hdn- im4pfls; 1.h a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (Sy.jpmd1lsfn t -*n- li;h7a4fee 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 traveling 3b r5ea+ c;rbzt34:k p8xivfa at 60.0 km/hexvpt8c b:aia+54r 3bzr k3;f south. 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 surface. -qzjy)3; go1zojfgd3xdo 71 i Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelasto;zj o7-g13 ofgdid xy j3z1q)ic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North wittun4,esagc-3d0v0uj j j, rnz-w 4su3h 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/secjuv33 4- a,jt0ngz4 d-0r ,sw jusnu; 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 m. Wher( 3k+8j,k-c xf(jwj gw4pbamt e is the center of mass on the x-axij((kp+bawmxwfc-gj8 3, 4tj ks?

  The center of mass of a two-particle system is at the origin. One particv, v;vl3at/rq48j kcale is located at (3.0 m, 0) and has a mass va l raq4vk ,jcv8t3/;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), r9nbj6;w( d qz2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine ; w (jbrn9d6zqthe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at ((1g1czj2s2us-t8 n rf u, xavt0, 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 sys-c(fgx2nv 1uj a,r2 8szt tu1stem?

  A 3.0-kg mass is positioned at (0, 8.0)(hxg.jv, q*v1 mb)tl xw 7q,bn, 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 being located at the origin, ()x n wjl.q,tvg*,bq 1 vm(x7hb0, 0)?

  Use Table 7-1 to calculate the 76bp,zkzb,)zu v4li8a0y mg f position of the CM of a whole leg including the foot when the 7bfzi,y zb8gmz6v ) 4al,kp0uleg is stretched straight out. Assume the person is 1.60 m tall.