What is the SI unit of mome rzu5onj4 t7m6pj/1 lyntum?

  When a cannon fires a cannonball, the cannon will recoil bok-/u3 xjhpnxta ,;p7ackward because the

  A freight car moves along a frictionless mrk;pf 4 vfp7(71adia;2 tft mlevel railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped ima7 ;(kdp21;fftm74v a r itfpnto the car. What happens to the velocity of the car?

  A child falls sideways off a sled while slxzx(x 5-r10pukb5g0k ocgd y4edding on frictionless ice. What happens to the velocity of o4gx0 gx5xy0rk-1pc (u5zbkd the sled?

  A rubber ball and a lump of putty have equal mass. The auorfs6j- :j3y are thrown with equal speed against a wall. The ball bounces bacuj a 3fjso:6r-k 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 mf wce 2:uxr;xz7xcs,1+b qu +h is moving with a momentum p. How would you represent its kinetic energy in terms of these two quantities?1wxu,+;e7hf:+q zc s rxxubc2

  If you pitch a baseball with twice the kinetic energy you gave it in the prev8:xa g39 ulna qopuuco,0s8md z3i.u+ious pitch, the magnitude of its momenma.,9q +38p g:za lciuu 3s80ouox udntum is

State Newton's second law in 8wt axsw .42i(xl eir8terms of momentum.

State the law of consey *azmsv+fs (8rvation of momentum.

  The area under the curve on .ev c;5kr mjzkrlhj+/u6:2.7tvl u bea Force versus time (F vs. t) graph represents

  Which of the following is an accurate statt/nj y 6eid1v)ement?

  A small car meshes with a la2gyl czg :32xumv .8 goop;s3wrge truck in a head-on collision. Which of the following statements concerning the magnitude of theo cglypo2wsm.;u23 x g gzv3:8 average collision force is correct?

  Two equal mass balls (one r ak2 oa-yu nevr8 wjj(-bh)ai.o48lg,ed and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during itso-8a olwjv)(h b-8ena4gjry.ia2 u,k collision with the floor?

  A Ping-Pong ball moving east at5 ut2i* e;pqdo a speed 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. udo5;tpe2 *iq Which object experiences the greater magnitude impulse during the collision?

  Two objects collide aim9 m 7i)xlcx/y; dg5cnd bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-16uvns3 w,b8 ojys8 a yzkchjg:o (4l:on with a 6.0-kg object moving to the lejw3( acz8 l s8uvsyokg:b4 ,6h1jny :oft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker mov962r) tdki bp5uqo aq t)6ss3king at 2.0 m/s tackles head-on an 80-kg halfback dksu3q bat 6 s2qkt )p5)roi96running
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 fgoi)v8z+c py*ms78ol e y7nbg2p)7yxollowingbv)8cgn* l mi7gy7 o7zy8oe )+sppx2 y statements is true about kinetic energy?

  When is kinetic energy conservel9to/1vbddw*pq a 5wcf::b l2 d?

  In a game of pool, the white cue ball hieg f .+dqae1:ets the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The tye+q:e.f1e gd ape of collision is

  When a light beach ball rolling wiz ay6ag;v9 7 7llrpq6nth 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, approximatelyr6l 7 vaa67 ng;l9yqpz,

  A golf ball traveling 3.0 m/s to the(lws5pknyo -7 right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost p (koslny-5 7pwerfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 z-ab2()oh wy r ,)hjmfm/s collides head-on elastically with an identical ball at rest. What is tha),)w 2mo(-yzhh jb rfe speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on wi*z 2mjnp:j-fxth 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 lipzxm:- 2jnj *fght object after the collision?

  A very light object moving with speed v collides head7 ns4mi 0rj )xnxia,tto;si(2 -on with a very heavy object at rest, in a frictionless environment. The cmnt 2t0si )xxsnoa , r;ji74i(ollision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocita .n(kv(zese 1-jr9vry 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 yellrre( nejk9 (z1.va-s vow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very light ob- kjj4 h*xb/p;ho3iwq2bw 5g uject moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What i- *w2gi4hbqkx 5/ubj;wp joh 3s the speed of the light object after the collision?

  In an inelastic collision, if the momentum is consp;x;rn d t8axe.+hz7berved, then which of the following statements is true abou r xb;;xth8azen.+ 7pdt kinetic energy?

  Two objects collide and stick together. Kinetic energb*yv)u/sb :n8 lv ambmqlwaxo( j97 88y

  A 3.0-kg object moves to the right at 4.0 m/s. ytgh s; qg.4*v It collides in a perfectly inelastihvqygs*4;. gtc 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 object and sticks. Which object experiszpyb:u2jjig:bz2w8 t hin u3 /(v;7dences the larger magbw ud7zu piy2(;jj38:hni2t zg/: bvsnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 b)r zso(* x;suj6g+ 5iqr*uswsall 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. Which of the following statemec4 yy4;sirddo/; evq8nts is false?es4v d r8i;ocyq/ y4d;

  Which of the following is a false statemekw /-aokib1 +tnt?

  Tightrope walkers walk with a long flexg7+ d )htyzvzev4m:nze;mc1i4p+n41yb 4r kbible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitw dmk eis9jr/c:gc3 kzvm07nvn; r6:-ting the ground. Neglecting air resistance, the cennz m g sc;3c79ej k60/mvrr k-diwv::nter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision wasbutlw.d 5 5o xel4r u99u6ot;w completely ob w56u 49dolu95elt.;tu xwr inelastic 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 system of particle8f,szme. )7 v s7uoae 8wwl6k4ocd+iz s.

  What is the momentum of a 2000-it; y6.dmyv/shb v;4ykg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is t-b83jrht4jg+n xg 0v vhe magnitude of its momehg + nxvjv-48rg0b jt3ntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. q 5*oa;w-l pps Its momentum when it strikes the groq*oal pw; s5-pund is

  Two identical 1500-kg cars are movi q:jpl-yau/x,e. j 5ihng perpendicular to each other. One moves with a speed of 25 m/s dqa, hx-.j/ :5ljieypuue 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 hori8- -5of 1bydf fqnx.uyzontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the mom-d -5bny o8.fufy1qxfentum of the ball?

  A 0.060-kg tennis ball, initias-249zgfjn hgu,pp6rby3d1 qlly moving at a speed of 12 m/s, is struck by a racket causing rbpdu94yp6j1zsf- qn,hg2 g 3it to rebound in the 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 onvo2g .y/ +o0ovfjink* a frozen pond. The machine fires a 0.40-kg baseball with+o *0.jf /ignvyo okv2 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 space capsule and is stationary n /iy8/vpwu e+when the tether line breaks. As a means of returniy+u/e /vwip8nng 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 a7d)ez * yopry-:qh;c ppproaches head-on a large object at rest. The small object bounces straight back with a momentum 7)ocyqr :p; p dzey*h-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 4.0e-1 wh-7ik j2rmepelfo k,tk1y ur8.9 m/s to greet your friend (40-kg mass), who is standing still, with open oj lrre2ek kt i7-mpkf 981yh u1-.ew,arms. As you collide, 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 le/apw 0zus .66xol+o-lzb3i 7n4zfgx y5le+i cvel, straight road at a speed of 6.0 m/s. It collides directly with lu+6bzizsgyx4l / ne3f7-o0wlixp cz6.a+ o5a stopped 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 of a qzuu qj;g47fdu+ s+g5stopped car that has a+qus uqugf5z4;d +j7g mass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, iska6)ud2 g e, 6mkbn1c,8xqjwp 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 rbgcn k1uekjx) ad2p68m ,q6,west and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a hor f5x4 jv-x)06dbb2ek6pm6 9bsqk kxfnizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and landsbn s9x2md e6j)5v6f -fxpx40kb6qbkk 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 reyt3a1mth0afxd1a +z 6spect to the log). With what tata601ah x d+ 3ymz1fspeed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object.r-mh/3 l t9yix2dgr 5a uh3v5up r-bj/ The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the 2/-bhhr a -3dxgpi/ulvt 5 m53ur yj9robject?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whao .zgag6y wi)9 wij.p/t is the object's change of velo.gpwjo.g a/i w)9y 6izcity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall andf8c +rwd:rly2p.i6hn9 o0s 4ro;wxoy comes to rest in 0.2 0o:w 48 rfiplr.6ry;wh9sodo+ x2ny c0 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched i1 hnks34td 9g c n5qlzr5z4+wto you at 20 m/s. You hit the ball back along the s 4 n1z+lskgtiz hc4r3dn559qwame 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 taf 0yk3ncsf0qww3v- wchh)e +6ble 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 collish0s 0c3fw)v6n+e-c hy kwqw3fion between the ball and the 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 35.0 kg, fires 50.0-gram bullets, with a muzzle vel wyy*lh;c 7ss.ocity of 750 m/s, at the rate of 300 rounds per minute. What is the a*wy syh7; csl.verage force exerted on the machine gun mount?

  A fire hose is turned on the dl .)ds)*9ofi mx(5qyxk wo5lxoor of a burning building in order to knock the door down. This requires a force of 1000 N. If the hol5q o)xxo(m5wdyi9 fxs.k l *)se 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 horiz 3b6s+vte: iarontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,sb+6ria vte3: what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s aftnuo p-w ifunvx*8w3i y6o6 f2v u:wy;4er 3.0 s, when fired straight up. What average thrust force does thyiu 2w6uwfip3n v *vf:4x-w nu8oy6 o;e rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiall1/cld 8wu(4/4 u odijp (igtsby at rest in outer space. Thdutbp//u4 ld1iji4og( cw(8 sey push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a /9 tbzs;b4 -lae2pt 4yd any*sspeed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0a; s4syznt-ape2 tydb/l*4 9b m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a,l y9dwiba;7xu9 w616q jqkfi velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10 q la9k dj6x7,6wfyb; qi1wu9i-kg object after collision?

  A 10.0-g bullet moving at 300 m/s isy4 bdxf0b 1;vy:tq8 cz fired into a 1.00-kg block at rest. The bullec:0 fxqyd14y b 8tbvz;t 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 collision?

  A proton, of mass m, at rest, is struck heaf((u r2c1bc (dfzc9gy ke.z8od-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely el.(z2o(1zc(9d cgc f yek8 bufrastic, 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 w01;ahjdy *xru cb2ok3ith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immocdkxb1a2*0 ru j;3y hediately after the collision?

A ball of mass 400 g moving toward the east with a speed ofbn637a1 *pciq 6j oeoc 3.70 m/s collides head-on witb6o 3i*qn1a6e jcc7poh a 200 g ball sitting at 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 .aopcnd8p-5+m f lxr6a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collispod xn 8+c.m6 5alrp-fion is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed6gp1yqo2 z7lx; *vu ecw8ryy+ 4gr5gg 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 pggue54c6zx yor;v+lg q8 1rg 2yw* y7this collision?

  A car of mass m, traveling with a velocity v, strikes a pmb, bq ish*n:5arked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collisihbinbs5, m:q* on?

A 15-g bullet traveling 213 m/s in a vertic u.7l2 .koq wdj*iq :oezks6s4al direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/blqos qlz e274k6ioj*.dsw.:k u ock 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 trai7trd;+htcxm ti 1071p fru/y veling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of h+;cmridp1 y1/u 7tt70r txifthe cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car traveling yxcpqw)56 b6pat 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars afterycp x)5p6b6wq collision?

  Two objects move on a level frictionlest/bb yl20l h.ws 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 combinedbl y20hbwlt. / momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a vejphj hxjc2 5-a*9dqn9dicu *2locity of 4.0 m/s. It explodes into three fragments: a 5.0 jd2-h p*cx *juai25jcnq99h d-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 18rjx,uk+eycc81cum+a9y o/ a 0.0-kg mass sits at x = + 21.0 m. Where is thea cc+uc,/o8kyu j9meayx 8r1+ center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is y1/p4o18v9 n ou vdcbjlocated at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the secovu 84jcvn9d1 pyb1/oond mass of 3.0 kg?

  Three masses are positioned as folg 8c .g-:lp2nz2ibyy+n - gdeblows: 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 of th .l:pgd ng g+2z-ybeib8c2-y ne center of mass.

  Three masses, 1.0 kg, aglv glcc.96: 2.0 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 tl :6ga9.cvgl che system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is position5 p j3-0jyz jq6auax. t2iyw+nr;i3daed at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the cente.6-+aqwjix tn2u ra5303;yid yj jzap r 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 including t. l; hnf( 4u.pld(lanphe foot when the leg is st;l l(f ad4 ph(upl.nn.retched straight out. Assume the person is 1.60 m tall.