What is the SI unit of momentum?qhovb3r k 1/u8

  When a cannon fires a cannonball, the cannon will recoil backw 6b ksv*/ sr+qqd9*jbwray9l/ lgj oi98g7v.yard because the

  A freight car moves alocc.fz (,ui1l wng a frictionless level railroad track at constant speed. The car is open on top. A large loiz(fu.1ccw ,l ad of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while slm(ut x;6vzqgl+3- n3q:oy lvi edding on frictionless ice. What happens to the velocity nq(oml-l;:t6 g3 uqxv y3i+vzof the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown wjt +jshyh oh715jz p20ith 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 objechp0zj o57h j21+ytj hsts experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent it* defzw9vi* of,i d+l/s kinetic energy in terms of these two qualv*+o,9de fz/f*iwdi ntities?

  If you pitch a baseball wi fbu9nep(r:pb(y:5 lx/lk 1 lpx2wxm5th twice the kinetic energy you gave it in the previous pitch, the magnitud(2yrxp lpxl: x (1l:k5/ bp 9mfewub5ne of its momentum is

State Newton's second law in ter2cwav)cen4us r;7 frc a*fyc: **:agnms of momentum.

State the law of conservatiok5-6lbw +- lj:vkdi jt0 oazs:n of momentum.

  The area under the curv7k/n;nsyidoxdf) 2 c fr+a(7de on a Force versus time (F vs. t) graph represents

  Which of the following is an accuh9lk (id)x,1 eyfgx/r4jr.wnrate statement?

  A small car meshes with a large truck inn(bssuof 87e(55h qpz a head-on collision. Which of the following statements concerning the magnitude of the average c f(n( ze75sosp5uh8bqollision force is correct?

  Two equal mass balls (one red and1xmh v+j+4eyctiv( 71*so fgf the other blue) are dropped from the same height, and rebou v7sc+gme x*hfj+y1oti 14fv( nd 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, coledea;5m6dg hx/zi 1umm6fq i-bppi+ 8 ib5f,7lides 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 imuipibfdh5e7/ap q6i id5mm-b m+z; 8xg6,f 1epulse during the collision?

  Two objects collide and bounce off eac,.aqk 5 b2 dy0-faojknh other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.dm*/(e1e u w2njo)dob0-kg object moving to the left at 2.0 mded*(mjow)eob/ u 2n1/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfba n7)u6p o j.amidc*v)uck runnin a7miuu p*.jon))vd c6g
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserve7:cjd:l/v0 / *xkan jmsdgeq 1d, then which of the following statements is true a mvk1gddn0jcle j*a 7/s:/x:qbout kinetic energy?

  When is kinetic energy conszg n;pmam; 2z */9 b.alp9ivirerved?

  In a game of pool, the white cue ball knomlo-xoe x. (cy 8 9cit3d7+w4kw,chits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue omoeki-3o c98 y kc,.7dcxwt4(+xwlnball had originally. The type of collision is

  When a light beach ball3/hpk(s*e soz rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision wi* ho(ske3/zp sll be, approximately,

  A golf ball traveling+hr 4 fjtius aisl,)n w3lw5,( 3.0 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastns,tilhl5 i)+u3rwsa ( fw j4,ic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collidesy* xe33hg3q n0 zjk1tml)jn3k head-on elastically with an identical ball at rest. What is the speed of the initially stoptnqzxey 1jhl3k)0 *g33jnm3kped ball after the collision?

  A very heavy object moving with mo t1li5x+ gu,speed v collides head-on with a very light object at rest. The collision is elastic, and there is no xmtl5+g iou,1 friction. 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-ola7*tctyfvg .o )jejag4t o9bk( 5 .z;n with a very heavy object at rest, inv jgoc9*4j7bflz5ya(ttkg ;). e o. at a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocitv5 dd1mj23gy iy 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 yellow ball after the collisi25 dyjigd3m v1on?

  A very heavy object moving withv n;w+*imv (64bd+d nw57odkrjau 8ff velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slvr(du54bnn +ow akid *dwv mf8j+ 6f;7ows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which (e ibnwvm;o u2q7*exo 5)q 2vmof the following stau*2 bm(meq7vv nx;2qeoi5) wotements is true about kinetic energy?

  Two objects collide and stick to- f ba7c1tgxu1jz. o+wgether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides inhlwul l mx (cd*(in6dl :s/5sdk6f88o a perfectly inelastic collis/*xh8osmnluds(l56 ldk (fw:ld8i6c ion 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 objecibtzth o;pu4n8 hx.x,dm(49v sd2df1t and sticks. Which object experiences the larger magnitude of momentum chan8z2 hu4i9d,nxtvd 4;bsx ofdm(p1ht. ge?

  In a game of pool, the white cue ball hits the #9 ball and is deflej97p ji.r( wk,k:rnjt cted 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 mas-urjpz 7 ac3nyao(uds72sz 77ses, M and m. Which of the following statements is false(7uya7aj dosz7s -up 3z72cnr ?

  Which of the following is a falvv :c0d 7/,qm4i f1rgyrc tnp*se statement?

  Tightrope walkers walk with a long flex 7 x: owknp/ak6l2qbs-ible rod in order to

  A plane, flying horizontap5e k5l9arh0n lly, releases a bomb, which explodes before hitting the ground. Neg9nla er05khp5 lecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road0l* s /hrujb6ytmy-h,. The collision was completely inelast jh h6- btr,*lymsuy0/ic 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 ofgvp6 /held,1kjt(y,a6tpd e0 particles.

  What is the momentum of a 2000-kg truck traveliv.o1lqb8uer vewt 480ng at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What isf el0v70h5,o fa x/pkw the magnitude of its momen p,0/7aholv5xfkf e 0wtum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it q n2t(p1ys/6y dqs+cestrikes the d pyqs 2 qs/yt+c6n1e(ground is

  Two identical 1500-kg cars are moving ml q,:j rga0.cperpendicular to each other. One moves with a speed of 25 m/s .grl:0qa,mjc 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 horizontally m(1fr2p bntp;x f3/wl)2wxji ynw7 j;at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in j xwij n nx;wl7w r2;fp/21mby)fp(3 tthe momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speen1cd- ajb r alv,pnj6h,t-n6i7)2mm b d of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What im bcid, jp 1a)tmj- n6hrlnb7v,n2-6as the change in momentum of the ball?

  A 50-kg pitching machine (excludiggo (vm* k+gi*e8mza6 ng the baseball) is 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 negligible friction v*(m+6mki 8e goz*gga.)

  A 70-kg astronaut is sx;p*y xqh, cz(p)oh:hpace-walking outside the space capsule and is stationary when the tether line break*hopc(z;hyh )x:,xq ps. 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 momen0 ny9qd4ocdk1-*7yev1 i w pkwtum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces stre7y 1kpdk1o q*-9yvwcidw4n 0 aight 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 4.0 m/scsw7cg;2 axzn.xyc 2qk4 +2qb to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what sp2gc2 csxb .x;wqaqnk +2y z4c7eed do you both move off together?

  A car of mass 1000 kg moves to the right along l +6( ojbr/d7donpb y,a level, straight road at a speed of 6.0 m/s. It collides d7(/y lo pd+,jrn6dbbo irectly with a 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 aj0wy(* gaqms ty7i,r,b0meo4 stopped car that has a mass of 150 tis ,r7we,q4jg0a yo* bm(ym00 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, maef),w -irmlawi4k8i(pc dm;. ss 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 ca ,(.)kc4-pmire mwf a;8iwd lir, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligiblrsp)2vddgeh3f84/t4a 4fie o e friction on a horizontal track witev e ih3/rd42tao8dp4 s)gff4h 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 walks1s d y+9g*m1blcpqv:gx lrf76 on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log movl+cyvlp1r9:mx7* d sf1g g6bqe, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increuzrzyc4 qx(8 2m3do/rases to 15 N and acts for one more second. What impulse was imparted by3zdu4( r ym/cz qxr2o8 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 tw+zpp,rd v t0fu9 xw8zb*,y8k,rb,gz he object's change of urb+g,,,y d, rt8xpfw9kp 8 *w bzzz0vvelocity?

  A 2000-kg car, traveling to the right at 30 m/wc+; r5nom d5dxu+qn (s, collides with a brick wall and comes to rest in 0.20 s. What is the averagqx5non mc5w+;(rd d+ue force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back alou8mv kr: z, k).ot2nr:mz(mz ong the s8zo.vkr mn mz,zu):tm2(:r ok ame 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 table top. The speeds of the brd6xdr tnyv+ekrn:g5: ;)x -oall 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 0.15 s, what is the magnitude of the average force exerted on the ball by the tablegxnr x5y6 :rtvo-rk;+ddne): top?

  A machine gun, of mass 35.0 k2i/oyh eg(x4tcra0o x 9 ja:a-ni1v/gg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300ev:rtay-hoci(0/n2 xig4 x g1aj9o/a 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 tp*u 8v +oox/lshe door down. This requires a force of 1000 N. o +*8vxp olus/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 hori.u4p 5(q+to8 . iw5vcbthb qmezontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average focpmu+5vb totihw 5q( q.4 be8.rce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a o9 ntz+ck 6ov6velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force do nc669zko+ votes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in oute6go r. kcj4)zwr space. They push each other apart. What is their separation after the lighter astronaut hak c4o)gj6 rwz.s moved 12 m?

  A 3.0-kg object moves to the right withfa e3(:xohrxs8 i5kw;ag9 4wg a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1. xgiw(8ose;k 4:5g harwxaf 930 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 e *gw+(a zpg*gd:xru/makes a head-on elastic collision with a 0.15 kg object initially at* dpggw*gu+ rexz (a/: rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 0d:a3i9kcu4p z w;z m8)dyovrm/s is fired into a 1.00-kg block at rest. The bullet emerges (th3p):80d;a ur mk zyow9vic4zd e 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 head-on mh .56l*8 13agsyryafafkjn ) by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. Ifafg sn6f)y m*. h318ya5 karlj the collision 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 +1a ad0) k4fj,tdvur+q70 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. Wha7u)jqad0+vt r,k a4fdt 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 collides h h, k,ajsn4k1jead-on with a 200 g ball sitting at r ksa4,kjj 1,hnest. 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 5.0 m/s. It cotjv f51uy.7dtb8sw s8 mm;wa+*4 febhllides 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 ch8abd7wf ss*41fm 5 ytjb8.e utv;+mwollision?

  A 2.0-kg mass moving to the eastjf0 jze) 4cyj2g gg8l* at a speed of 4.0 m/s collides head-on in a perfeg4 j jel2)c8gz0j*gf yctly inelastic collision 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 veosm0d :)vka u 3.zg9m, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initialav3 mskzo.0gd) mue:9 kinetic energy is lost in this collision?

A 15-g bullet traveling c *bl .n,911f jafbp0lrry/dn213 m/s in a vertical direction buries itself in a 2.4-kg block of ljrfdy,f bl91n/*bn a.cpr01 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 30.7:g9uag+wxw i,gme lrap 5x- 00-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 of the cars after colliswa xlepiug.aw g,g 97xm: 5+-rion?

  A 1500-kg car traveling at 90.0 km/h east collides witp3ygna +q9wp ti* 4y7ch a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. +4gqc79 n*y pwypai3t7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A moves eab 1 kw*qntt96ax(q7 nlst 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 ofn(* tnb9qtlqwa7kx 61 their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.0 4*c ss ub*mrs1m/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 third fragment? (Neglec m *bsrc4ssu*1t air friction.)

  A 4.00-kg mass sits -qb,4- (yr ekaqx dh6jat the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axis -(ry-6qjkb qahex4d,?

  The center of mass of a two-particle system is at the origin. One particle issvhdr ,jl2aw)xm)s x 984wb3f located at (3.0 m, 0) and has a mass of 2.0 )d3b9)jmsf4saw wl 2xh8xrv , kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: y6 knw8/ i9t3tfk)il j2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the wki 9i /t8fykl3t6j)ncoordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, qiz3z b/w7t- 9evh8jg are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What i/j3zv-eqb97hzt g8 i ws 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 mas(axt +s78l;dl 8 f rk4ie) wh1hwq.ogos is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the ce+7fa 8 e;l48o)qtdrkw l(.i1ghwhoxs nter of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position ofq9u d)8)at glk4oj3ab the CM of a whole leg including the foot when the leg is ))b a3g8ju9ldk4t oqa stretched straight out. Assume the person is 1.60 m tall.