What is the SI unit of momentum? hy :n68(:pvc pxjna7q g:+zwo

  When a cannon fires a cannonball, the cannon will recoil bac) :lmn)kefj:e1p0 p5jtw/u nw kward because the

  A freight car moves aavg--; g) oo :a4rwhpblong a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped ioha 4pg ;rbga--w:)vonto the car. What happens to the velocity of the car?

  A child falls sidewa1egm s89, fpm s4:hfkz o4n6kkud ;j9rys off a sled while sledding on frictionless ice. What happens to the velocity onphud rzs6g,m:k8f41kso9 ;f94mk je f the sled?

  A rubber ball and a lump of putty06ow7; flrabbr2nh1u have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hau7wfh bon6 102l;brrit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. izogaa ,,. ,/8k69pk)llht;uq x nckqHow would you represent its kinetic energy in a6,. i;zk9)uqnkpko 8tq agl xlh,,/cterms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the pre* 4jx q8r z0,apaxepn4vious pitch, the magnitude of its mome4paa*xp 0e4 njx8,rzqntum is

State Newton's second law in 5fi70 sh/r ,/m7jtg:drvtl )rt kvzl, terms of momentum.

State the law of conservation of moment uk0mahyq2ua-v6f s3mg, j7e 6um.

  The area under the curve on a Force versus time (F vs. t) graph representpl*47vfz fq9 x/cphzma3g)t:s

  Which of the following is an accurate w-nlm-q , xtc)zw)q+v statement?

  A small car meshes with a large truck in a head-on collision. W .(p(; xy5 ezkh6xtrb j+kbaa)hich of the following statements concerning the magnitude of the average collision force is corre6 yxb(h)ar jp z(tk.xe+5kb;a ct?

  Two equal mass balls (one red and the other blue) are dropped from thfm d 76fo5upirl rs00-e same height, and rebound off the floor. The red ball rebounds to a higher position. Whici 005u- or sf7df6lpmrh 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, collides with a stativb 9bej -5(lvnonary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences tbj b 5en(v-v9lhe greater magnitude impulse during the collision?

  Two objects collide and bounce oftetv8ghb 9iz4/p,yl,,yj .6 d yo cne5f each other. Linear momentum

  A 3.0-kg object moves to thebsr519v3urhl5p;sh6n zn7bl hl.da* right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 26rs3bhz7 ndu5 anlsr;hvp1.hbl* 59l.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg han8t; 4agwjr+h+t 6 1vwzvmg- wlfback runninhrj+tnavz1+w 6wmg g8 ;t4v- wg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conseri d;*vj i9t8sb/;e2xrw m8 ff.iff+hxved, then which of the following statements is true be*2d + imx;jhfifv.889ft ;swxrf /iabout kinetic energy?

  When is kinetic energ74q:t6 mshs4xa ym5 twy conserved?

  In a game of pool, the white cue ball hits the #5 ball tn/,: un2 axy:et6uo0h mmb( ge w*vt4and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision i 4 gt:,nbym6n2e uvx0mw (o:ht ae*u/ts

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy epoo(p/rmluws,* bgzn880w zzi n7h.8xercise ball at rest, the beach ball's speed after the coll (p/uz 08h.nw ,88o izs wprzl7m*ognbision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in h.ttbshz+l ) hmm;ame wp 9/);a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly be;mtlsmz)mh wph)a9+t/ ;h .elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with a8jmlw *d3 opw-n identical ball at rest. What is th*o lw-pj wdm83e speed of the initially stopped ball after the collision?

  A very heavy object moving with spetv0-- *ngva wsgl(cr,ed v collides head-on with a very light object at rest. The collision is elastic, a( n0lv-,cwa sg-t rvg*nd there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  A very light object movi 7-xod1:ci 5yno6ddcing with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed -1ixyo ico57d:6ddcn of the heavy object after the collision is

  A red ball with a vel fr1 ;rgtwn5k-ocity 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 collisionr r;15-nw gtfk?

  A very heavy object mo dm)-rn28nz 9gj olwd/ving with velocity v collides head-on with a very light object moving with velocity -v. ) dwl9rz2/ dnm-njog8 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 collision, if the momentum is conservedzvw 6.amzi(w 4, then which of the following statemen.6 w (wvm4iazzts is true about kinetic energy?

  Two objects collide and stick together. Kinetic eeov;p60p 9+ tnv1zwwco2- fj mnergy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly i7 c-gukwx0 s7jnelastic collij-7s0gu cxk w7sion 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 oveyu+ wq(u2o:bject and sticks. Which object experiences the larger magnitude of momentum change?2o qyewu( +:uv

  In a game of pool, the white cue ball hi5q(gqvd nl nc,0 a)u; jp35klrts the #9 ball 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 o3j(:v0dip 3wh sj ub)nf the following statements is fals:)su(vwb 3n3hp jj 0ide?

  Which of the following igc6,q3 h8chmos a false statement?

  Tightrope walkers walk ohens78/gc0ow,pz ;5q ftr3m bk 92rswith a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodo5:hbia+p)s/l jy;hm34rnsz wpb :n/es before hitting the ground. Neglecting air resistance, the center of mayp;h l) ja+mh54/b z :wrn/ni 3:ospbsss of the bomb fragments, just after the explosion

  Two cars collide head-on on a level fricv *2wh17 ;yffcgbsy9vnimdmw08m0 0j tion-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true f; 8c v2m s9*wyfwigbnyjh00vmmd1 70 about the velocity of this system's center of mass?

State Newton's second law for a system of partirwyqs li07 (u/cles.

  What is the momentum of a 200q1hnccjuuz(. s)zorw ) me 3*60-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is m*q-cynm0h 1ey x9jqb2oving south at 20 m/s. What is the magnitude of its moment myqbh109xyc j2e*q- num?

  A ball of mass 0.10 kg is droppe1gwq +isis fj45.s g)dd from a height of 12 m. Its momentum when it strikes the groung g .qsfws4j1isi5 d+)d is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wita.0cbn1r pn s4h a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of thps 4bnac1.n r0e system?

  A handball of mass 0.10 kg, ib xme o;6y;yo :hygqu8p ;36mtraveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Wx yob;o;6 ;g yp y8emu3mhi6q:hat is the change in the momentum of the ball?

  A 0.060-kg tennis balkiaxnjhwz h1z,ilq2m r+v r2,5x-*, il, initially moving at a speed 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 is the change in mq15mxav iz*2 z,r+rnh -iwkhi2 x,j,lomentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed opm)7rhyl, w jg,y 4y8rn a frozen pond. The machine fires a 0.40-kg baseball with a speey)jpy, ,hg yw47 rmrl8d 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 w a1wj4 yax s-gisa526nhen the tether line breaks. As a means of returning to the capsule he throws his 2.0-s1 4a2i6sgw-x jayn a5kg 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 approachesf+k + xm,bt hwki,;qm* head-on a large object at rest. The small object bounces straight qm w,k t i+mhb,kf*;+xback 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/s to gr c349w/ 7xnyq9bva a ncsm6q,leet your friend (40-kg mass), who is standing still, with open arms. As you collide9 wsq4c7 aa/xv ql96mcy,nn3b, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the rightklay m96/f 2ocbj1zk+ along a level, straight road at a speed of 6.0 m/s. It collides directly with fyzm 69jbl/2ck+ aok1 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 i ghh5byzo0,0hnto the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after th 0o5yh g,0hbzhe collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level track ai,7e l:v-iepw 4 hcnlb :m;2gat a speed of 2.0 m/s. Itv h4 ,2n:;7 elipag:lwem cib- 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 2e weem,w-p3a 1, vjn+p00 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straightmj1np+3vw, e we,p-a e 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 *yfc re ft dh) 0nihe.x+/n6:jrespect to the log). With what speed does the log move, wit*y fhdi 0 :hne+jex6/.tnfc r)h respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 1wzc1 g/se.; p t,x7eol5 N and acts for one more second. What impulse was imparted byw7tl,cgo ;.ee1x p/zs 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 o po yv*+2uihh*bject's change ofi* houv 2hp*+y velocity?

  A 2000-kg car, traveling tovt3.d (yxd6a jry9+ab6 l rv1fmk /eb; the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average forcex dy 6a1l k/dmvbyt r.6v93 +ab;refj( the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You nsj9gtca r0 s au33e*+hit the ball back along the same path, and at the same speed. If the bat was in contact with the +3 c*0gsusjr9 ne taa3ball for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped v o:s ;tjuz7e7onto a table top. The speeds of the ball right before ajse tz;7ouv: 7nd 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 table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzzle veloey 7vy1 0zu.p 84yul(o k5nrrycity of 750 m/s, 0yyrlk op8uy un 41vy(7zre.5at the rate of 300 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 k7q (8b-*mjdc kufc1-oxz )6vv9tjveynock 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 watqv vm*z 17 dtcvoec9-(y kj8xb6j-fu)er doesn't bounce back?

  Water runs out of a horizontal drainpipe at the ratdokzm4-4xs s7 e of 120 kg per minute. It falls 3.20 m to the ground. z k4 -sx7sm4odAssuming 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, 3o mf(gtl k;hgs22ve 9s*cv8p when fired straight up. What average thrust force does the rocket engine s8h2(fvv2 kg msegp 9 c3;lt*oexert?

  Two astronauts, of masses 60 kg and 80 kg, arkcvf p9 ail,o880ppqx6s s 5y6e initially at rest in outer space. They push each other apart. What is their separati8pispyo8k qla560vxfs9,6 p c on after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides (s 1fl jgu+ky:s3gas8 in a perfectly elastic collision with a 6.0-kg object moving to the left uasl :s(3f jkg18syg+ 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 in the +x direction makes a h5z 9etoz,jl8 head-on elastic collisz9eljt oh,8z5ion 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 is fire* 09b ;htl wyjfhd3kzacm6 o2 (7hz1aa)+cpjgd 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 chbgcjjl06tph37 wyazko( zh9a; fa *2)d+m1the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which covoh;3oldjb4xtj) 0g77 r rseu:rg8e:nsists 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 colgx7eds:g0j l3t:eo;7jh 8)rr4vbr uo lision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mas gy)+ 0(;tsreq mydpx2s 100 g. The collision is elastic. What is the speed of each ;my2sx0dq r )y g(tp+eball immediately after the collision?

A ball of mass 400 g moving toward the east with a speedet5qc0+oz*,a. gsh u 7cj;9vp0xqo wp of 3.70 m/s collides head-on5c0poh ,veoc*pu70 j.w+9t;szqag q x with 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 a speed of 5.0 m/s. It colldgglh7 06giak2 xvcr( s f)b53ides head-on with a 3.0 kg mass at rest. If3 )gfdivr( bh27g 6x gla5ck0s the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speejwho58/n6sju + ve wf.d of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2fjjhu 8 n5+e wosw/.v6.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveli+alz2 ; uxji+.wfk(0bmj+kg3 i2xc za ng with a velocity v, strikes a parked 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 a+k;zbjw0(cju+xaxi3 z 2 .gfmi2+lkcollision?

A 15-g bullet traveling 213 m/s in a vertical direction buries its oa)tm,h-d2jo hmave(. 2zb; lelf in a 2.4-kg block of wood a rest directly above vjmhz2 ,ol. ; ta(2bad -oh)emit. 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 e. 4kt9wpqq0nfast collides with a 3000-kg car traveling at 60.0 km np f04.qwtk9q/h south. The two cars stick together after the collision. (See 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 0f-ej(u fojh72yr m2wckyc 55hk -h6c car traveling at 60.0 5hcc 6 -jy0m 2cw2yk7ofjfh5 eu-krh(km/h 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. Object A moves east wit(6bf/ h mu-9hreetiw2h a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s.9e6ui -e/ftw m2 rh(bh They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocitdv5lgmy+-mao qwz, +*y of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8g* vy5q+ +wz,a do-mlm.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 thx62 hb)y9mvd we origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centmwd xh 962yb)ver of mass on the x-axis?

  The center of mass of a two-particle system r41 ;atv qb:9 ,ytazv)ayy/beis at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.yvr9/z1 , y;tb4:av byeaqt)a 0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg pa l*tcahg ,q-s;: bx1at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of c; p aa1lghqst b,x:-*the center of mass.

  Three masses, 1.0 kg, 2.0 kgky f o(ib63ar8, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 8yfa(kri6 b3om, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0)tx k+0amy7xz.r)/ct cydv k/3, 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 thec /a d/ .kzy70rk mttv+xc)xy3 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 whh/-mf8 fdna)8x-1xys r3z+i0 wev e/sjsc1yzole leg including the foot when the leg is stre d+c fze-wejz n/3hs81s0) s i-x1vy a/fym8xrtched straight out. Assume the person is 1.60 m tall.