What is the SI unit of momentum?g4*ty4 wyfnorol(iaj m h5.9;

  When a cannon fires a cannonball, the cannon will rff/f)bt 69pgos8)wjf9p) b by ecoil backward because the

  A freight car moves along a frictivv ) xflg1.4b jbu7-nhonless level railroad 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-4)nu gfv71xbl .hjv b of the car?

  A child falls sideways off 3bti55dpr 1yq rnv8y/ a sled while sledding on frictionless ice. What happens to the velocity bdytq8p 5n5 1/ yrirv3of the sled?

  A rubber ball and a lump of putty have s/wbb):i ef n,equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same/ eibf: bsn,)w 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 hrv * :mfq gzk.:uwt+*its kimhz w +.r k*t::gvquf*netic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you 25ne6/ d:.ig xox9qg6unlbve gave it in the previous pitch, the magnitude xoi 2 gle/uv: 66gn9d.x n5ebqof its momentum is

State Newton's second law in terms of d eu,f6vfi *l9o*/t xkmomentum.

State the law of conservationkry4*2 at3ns p of momentum.

  The area under the curve on a Force versus time (F vt ;8hexz xg+.ks. t) graph represents

  Which of the following is an accurate stj -eb(s6z f3znkn6u s;atement?

  A small car meshes with a large truckakbn- i*ox40wd ou23 /tia/ls in a head-on collision. Which of the following statements concerning the magnitude of the average collwan ouki t/o 4b03xa 2/-ld*siision force is correct?

  Two equal mass balls (one red af1yqlh/b z27 sizb m98nd the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher posit/71h 8blyzqmb9sf z2i ion. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a spnn9wgg)o+/c0;tld,ya9x ol leed of 4 m/s, collides with a stationary bowling 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 impuln l0gnd;),c ywo lxol+ at9/g9se during the collision?

  Two objects collide ae uyb6bwg3)/ snt ki*yfk+9g yz8 o08mnd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collid1yebs v 3s rxowv1,zjbrc87 8b5b4 /cies head-on with a 6.0-kg object moving t bvv7b,rec4jbo/15wxzy is8 b8 sr 13co the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebac x/q/gs9dpw*d goz, yo 5ug p.*b;3uquker moving at 2.0 m/s tackles head-on an 80-kg halfback runnipb*poz ,3qgdxo 5g* .y/;suwu9gdu/ q ng
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 follc72c /eo vj/xtowinge 7ox2v/cj/c t statements is true about kinetic energy?

  When is kinetic energy :,w7t5jzgf zy conserved?

  In a game of pool, thgv h 67clnh8y t1o64sp*)g tuve white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collisionycg8hvo6v4*u p)th 76nsg t1l is

  When a light beach ball rolling with a speed o gittyve30 45 ggs)((c9vsmssf 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximately(c04 tvvgsyge( g3 ts5 s9)ims,

  A golf ball traveling 3.0 m/s to the right collides i+zu.t aswl- n7n a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfecw -suaz.+tn l7tly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a .w zg zzd,,)vlspeed of 5.0 m/s collides head-on elastically with an identica, ) lvzwz.zgd,l ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving o d6 e:-ilo3cnw t*vlr8u4qvoin/+ u5 with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. doq*58tcli 3 n+vlu6ei: u-o own 4vr/ 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 wit9 a(jp1vir qwoq::.k1*ea sxxh a very heavy object at rest, in a frictionless environment. The collision is almost perfectlso(*j9q.1p:axk ie:q avx wr1y elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collidesrf-mc eb18;ck 70kuty head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of - 7 t8m;b1eku 0ryccfkthe yellow ball after the collision?

  A very heavy object moving with velocity v collyq-*8; d/ zue*p+zms 7x oqp,bx4hm pjl0waw)ides head-on with a very light object moving with velocity -v. The collision is elastic, and there is o/ s0dqb*,zpl 4 xwem7qp ;)hjwum -8pa +zyx*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 momentumwm j ;tis*6)yw is conserved, then which of the following st)j *twmsiw6;y atements is true about kinetic energy?

  Two objects collide and stick tog8) vp/lla-dboether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/xvlte*2a3 u+ r,w2d zgs. It collides in a perfectly inelastic*lr,vw2uze 3a2xd+ tg collision 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 os.zp ohb42x8 lp y9u63+ky -yj2nqsiu bject and sticks. Which object experiences the larger magnitude of y k+yy2jh- 8in spzblo69 3q4supux2.momentum change?

  In a game of pool, the white cue ball hits the #9 ball and*wdh u 8ej8d/ *,oysx/eb/jarn z+*ir 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 masse8azu* q5o.ghgjd1 ) hls, M and m. Which of the following statements is fals ) lh 1zugd*aq8h5og.je?

  Which of the following is a eqs*6pl q tx(0false statement?

  Tightrope walkers wal. j8fmrn.jk z n9sxq;wyo0br.;xr2 q6 k with a long flexible rod in order to

  A plane, flying horizontal3,c tl1p u1wmc.mt7p9u+pdkx w :a1kuyj4 1fvly, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmentjy1l73 +ck9,4:ucp tpuk 11m1ad .mpf wxvw uts, just after the explosion

  Two cars collide head-on on a level friction-free road. The coll(o.usmq k5uf t 4i75lx7eu r*rision was completely inelasrfktuo77x. e*mqi 5 4(ul5rsutic and 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 syjoez)y.2cbg( dza1/t(qs0k lstem of particles.

  What is the momentum of a 2000-kg truck tj6 y*y 0vsu 4w(jpkff+s36 ixiraveling at 35 m/s?

  A 1200-kg ferryboat is moving south j ;kfxmjq3jr) 06i,r oat 20 m/s. What is the magnitude of its momejo6 ;i rm)3qjx0 ,kjfrntum?

  A ball of mass 0.10 kg is drok33w4 cday(e e6isw*fpped from a height of 12 m. Its momentum when it strikes the grou*i3(afk 36ysdec4w e wnd is

  Two identical 1500-kg cars are movin6oclg2)bzs 2wg perpendicular to each other. One moves with a speed of 25 m/ 26bwocgls)2z 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, trd2rdfs0 u5.3oxw v 9dec 8d3rjaveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the d jc wd38.erodf5x03sduv2r9 momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, qt;eewbl 4/jt y, f:e4is struck by a racket causing it to rebound in jet4:bt wy,f /e4;el qthe 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 placed on a bgaeow- jj,.p dud, np,2y1n4frozen 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 ,d-daujjp1,yeb pn, 2.4ong w pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walki41pv(ghidgkz /qf r/9+nv7heng outside the space capsule and is stationary when the tether line breaks/ /1pegnv 9v zdihgr( fhqk+74. 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 capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large objectia rvkj*e8-g- 1(+6qznexk e z at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of thekerz+eazgj8 i-(kq16en v-x* large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), whs0f5m/ fgloj :o is standing still, with open arms. As you collide, while holding each other, with what speed do you botf /sj:m 0gflo5h move off together?

  A car of mass 1000 kg movesy8te y)x./k2en3y .drjt)ms a 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 mt3sejy8yake .r)ynt /2d x).kg. What is the total momentum after the collision?

  A 1000-kg car traveling vzi61gv+6vgy s8va 3sx m1 l4hat 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of th8s +vishz vxgalv4v 16gm631ye cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast aedoi +fpp3 a.5long 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 pi p o5d+efa.3speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible fric ):ml7 dcdgb/htion on a horizontal track wibgd 7ld)h/m:c th 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 on a 100-kg log at the rate of 0.80 m/s (with rebbtqvbe;i4 6 8spect to the log). With what speed does the log move, w;vte b48 6biqbith respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15 .du) m )x1 f/augk8raiwtz/ruc8gv.0N and acts for one more second. What iv)trua/ i8g)gmz k uf8.dc0./r xau w1mpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the objav(to)(dv*i bs zkb8+ect'vbts)b kvz*o i+da8(( s change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides ; c7jjzr8nrm lyxu t-bg ygei7.- /08uwith a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the ri0t;c8gmb ye-./z8j 7xu-u g ylj7rnwall?

  A 2.0-kg softball is pitched z8uj) (yju*q2j*bqwh 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, what is the magnitj(qw8 uuh b*jq*2)jz yude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of i rb7+ wgk.vr2the 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 wrb+7.g2i v krthe table top 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 301u:tfrj 4f5qq/d, u5uov oid5.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300/15o5 uvqiq,:djo udrtf4 uf 0 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 build+kb.+wh-88* ns6bs h9sfkzxcexpg :ming 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 nehp mf8s s6- gnbx :s.hk*bxe wkc++z89eded, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg pe8vy vmuy0 ( 1 z)jha5nnegw,0rr minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,yhynv1v0j8aeg0(ru,5n ) m wz what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity 4yh z)0u zk3kc4f3pkjof 40 m/s after 3.0 s, when fired straighty u3 ck43kf pk)j0zhz4 up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially +;sg6 s p+jfofw+4reiat rest in outer space. They push each f i j+p+sf+4e s6rgo;wother apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed o h.cmzd v+v-sjw7c-(af 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving cavdsv wzc-j . m+7h-(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 inj- v jwd7b8wm3 the +x direction makes a head-on elastic collij d7w8- 3jbwmvsion 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 300 m/s isn -*j p7qwkn1ze2ovy ) fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in t1op7 qwy)j znevk 2n-*he 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 str1382wy7lej ivt pxdv2. ag5sb uck head-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-partixgs2 ivbwdtvp j 738 .lyea512cle 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 stationary3 r31ogrr loe,.y :avh ball of mass 100 v1ag:r.3,hooy3 rl erg. 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 3.70 m/s col v 2k+gix s33ulkr*he0dxj .og9;m7oclides head-on with a 200 g ball sitting aoxi* 3 m+eslkdxc2.9k;vo r3hj0gu g7 t 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 speet-4d)(vnpvgyt yzy7a -w29 m ad of 5.0 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 ttzmw) tva y9g24vp d( -7yya-nhe masses after the collision?

  A 2.0-kg mass moving to the east at a speek r,5dh6tlw7z d of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic enew 6z7rthkd5,l rgy is lost during this collision?

  A car of mass m, traveling with a velocity v,.ki6a p x 2dnjcoe;x(hh647k l strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initiopexk4;726j hca.kh n6dl( ixal kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 8qwm)qos9 : pb2.4-kg blocoqsbp)8:m q9w k of wood a rest 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 collides with a l+b jng *l*,hn4n6 oi rwwp-t)3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed o-*nlt , )ih*+nr gbwp 4lojn6wf the cars after collision?

  A 1500-kg car traveling at 90.r ) 06ktle7h1 ik7 2sknop1dsn0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Figks0ro kt1 epik717sn2)6hd n l. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on ald7 9a5 o1jhmt2/7qtamqasm jb*;1m c level 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 inelastic collision. What is the magnitude of their combined momenahb 1m m 7qd59; s*m7la2 1qjcmo/tatjtum after the collision?

  A small bomb, of mass 10 kg, is moving toward the N:4 rl(qr hi*rforth with a velocity of 4.0 m/s. It explodes into three fragments: a:4flhir*rr (q 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 third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass syv3 5m.mjzy 6nits at x = + 21.0 m. Where is the center of mass on the x-am56v mzyyn3 j.xis?

  The center of mass of a two-particle system is at th5g7ts u-f0w kw f2u)j(nluu:xe origin. One particle is located at (3.0 m :25kxu utw-7(fuu )f swnjlg0, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as fog4ar7t/emlz6r q tf06fpto*u3-*g kr llows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates erut grfq*glktz/6-o 6a 3 *7mp4f r0tof the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0)bsm y9318mwc9r e boy9, (1.0 m, 1.0 m), and (2.0 m, -2.0 m), re98 m9bb319c wsmy yreospectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is posiqs9:pgx0 : 5 z or8zjp4cf2n)ml3usnitioned 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 mas3u o8j )4xpm :90r ls q:iznzpcnfsg25ses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the positiowy331 uoy a,+c+q ynodn of the CM of a whole leg including the fdy,yanuo 1+wc+oq y 33oot when the leg is stretched straight out. Assume the person is 1.60 m tall.