What is the SI unit of momg, jcw95jb bk,entum?

  When a cannon fires a cannoe9x u 5*gsve0jsq vvrjp ;s)7sckw10 :nball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant msvo ee075l8/m j1zh6rjfxs(speed. The car is open on top. A large load of coal is suddenly dumped into the cams vrz8 6xm5j7he(js l1f eo/0r. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. Whatqhlw()a4wbno/n i(, qkh +ma/ happens to thibq(w,am 4no ahl/(q+/hknw)e velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown wi-a6v tk:1s2u (jrifz dth equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to -(1ar2vzs 6kd fuj:it the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is movipj*irk/t oawk681a ,kr5xb4n ng with a momentum p. How would you represent its kinetic energy in terms of these two quanwn5 x8 4pb k*k,61orjark iat/tities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prr*t7*rf9j6 db v9jt ffe 4n5swevious pitch, the magnituj b9 *4d6 nft7*sejfrtvw5f9rde of its momentum is

State Newton's second law in terms of momeul w6 h 2wgqn -f,h.pbir1.+klntum.

State the law of conservation of tu/agl2bsh(( momentum.

  The area under the curve on a Force versus tj +vud49 zfpy4ime (F vs. t) graph represents

  Which of the following is an accurate stateme h7qb8r 3n0d 3;qjkjunnt?

  A small car meshes with a large truck ybm.6 zf7 cvz 9w( ,5tjirex(kin a head-on collision. Which of the following statements concerning the magnitude of the average collx5,w9.7vmbzjey ri(fcz( 6tkision force is correct?

  Two equal mass balls (one red and the other bluo:i0u5 ull1aoa ) nea0e) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher pu0) l5eaooa1u0a li: nosition. 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 1xazvm5 n3l9v,nd* ar4 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 31a 5x vn9l,*drn zamvgreater magnitude impulse during the collision?

  Two objects collide and bounce off each other. z9 oi4*uud,sm Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with aki; st 6gzlq0kvm080 g 6.0-kg object moving to the left azt;g0gkk 008mslv6i qt 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s t:wo d3npe*p2 c 6jsq)nackles head-on an 80-kg halfback runn 2:o*sne)pq 3wj dc6pning
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 thrvf)raj 657 qve following statemer)qaj v7 5rv6fnts is true about kinetic energy?

  When is kinetic enermum *0rz8.ha g3j -9t(sxq ghjgy conserved?

  In a game of pool, the white cue ball hits the #5 b 7zbyud5tk+2n6 z9o os*w j*xnall and stops, while the #5 ball moves away with the same velocity as the cue ball had originally.* t75 nz u6zxosy9d*knbj+w2o The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s c5 *m2pmtfom*) q 3ea7i2rnwmer,q p9oollides with a heavy exerci a*7ot3omn2ew q5r )emp9mi pfm2*q, rse ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rightda8j f*n;vua5 collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, v8danjuf5* a;the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s coll zd a-d(vngobabf;r1-8-(afc ;c 0-/pqdsij zides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the j-vffz cba1aco ( q-;--ai/p8rbgs0z d(d d n;collision?

  A very heavy object moving with speed v collides head-on with a very lisg2 oy+ i-.z3x8lw uzfght object at rest. The collision is elastic, z fwy l2i.38g+-xzsouand 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 moving with speed l)f z4o bc j:(nax (u-1iekbg858srxdv collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. j8ns e:gx4izdakl r1 x- o uc()(b85fbThe speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides qka705yhv/ tpmj. )ffeag p:3head-on with a yellow ball of eqa7m 3pp .vkhqt fg0a /y5)fje:ual mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a - p,+hhafcd/ (k/inrqvery light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object bare/ +(adipc/rhh f,nq k-ly slows down. What is the speed of the light object after the collision?

  In an inelastic collhyqw8 pw if6.8ision, if the momentum is conserved, then which of the following statements iqh8iyfw 68 .pws true about kinetic energy?

  Two objects collide andj,fk.cp;7edmp 0l7yu*y4 a f d stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides p hb.e*f,epc3 y wyb7v 6.v5twin a perfectly inelastiwbyf3pyhv7tb.6 c5,p.v*eewc 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 oi9 ;dmuxvlk,:(b61 xurv ; wpobject experiences the larger magnitude of momentum change?;kwim;( 6ubr1od vvx9:,x upl

  In a game of pool, the white cue ball -ox khx;/ gh(zhits 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 mass 9x fz.ef.*+oelw-jlbiu+m1 mes, M and m. Which of the following statements is falsx+le . *+i9bzwufj-m .1elofme?

  Which of the following is a0g.*t+z(ww b aaetd7f false statement?

  Tightrope walkers walk with a long flexible rod intrbv/.9 rku+npuj. (x order to

  A plane, flying horizontally, releases a bomb, which explw3g6r)aun+o(:j; jd j;g o wsrdjag;(1uoy 0bodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb rbj3rj g:6;oa ;uj0j;duyna 1 ()owg+ogswd( fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The ++zwo.q+1/p uk ah 6hfhwa9ou collision was completely inelastic and both cars quickly came to rest during the c oh ouqkfah+1w+6 .aw+ph/zu9ollision. What is true about the velocity of this system's center of mass?

State Newton's second lawszg b;;3c8frxf88y5ynpyr *o for a system of particles.

  What is the momentum of a 2000-kg truck tr zcv-2 dv/1rlr;igs( laveling at 35 m/s?

  A 1200-kg ferryboat is*huy g4av s,/v moving south at 20 m/s. What is the magnitude of its momvy*,hvg s 4/uaentum?

  A ball of mass 0.10 kg is droppvt;uedkqlb*mytr:g 3+v wo*1(s 7g ; ued from a height of 12 m. Its momentum when it str7evdbqg*1vw uls;mk *g(ou+tt:y3; rikes the ground is

  Two identical 1500-kg cars are moving pe) (l vrckr:xzme8bpu( .c99 wzrpendicular to each other. One moves with a speed of 25 m/s due north and the othe8(e9ku x(cz9mwrbl cp:)z. r vr moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0/g2 kpcyz,jgn*t *ok(.10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ba cktzgj/o, y*np gk(*2ll?

  A 0.060-kg tennis balli(fyb va e:z4gz:p08xtvc / 1p, initially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at i1eyz/z4 t(0 gc:va fp 8:vbxpa speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the2:mi(bvi x- pz 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 speez(v2:pb-i imxd of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and)5)kgjpiv+ lj/ ahou(cj3tf ( 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 what speed does the astronaut move towarduai(5+ lo gfj(p )/k3)vtchj j the capsule?

  A small object with momentum 5.0 -0 fqc g9 g;0zemrkav*kgm/s approaches head-on a large object at rest. The small object bounces strg * fcq;09-kzmvgr0e aaight 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/s to greet your frienkg 4 9nga1+uvvd (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do9ga 4v1kvug+n you both move off together?

  A car of mass 1000 kg moves to the right along a level, st otpd/fua6m2c 3-p q5gi+; tlgraight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is thl6 /i;fcpgog2md q+53t p tu-ae total momentum after the collision?

  A 1000-kg car traveling at 25m/kmy +9ek.d3j8v liz m/s runs into the rear of a stopped car that has a mass ofv3 i8.+9yd e zklmmjk/ 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,:or,lz.viuvp*2 ;gtmgs3 f7*l)wbd u000 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 two cars after couplin3uv.gsg,)ll 2 ; uf*w7rom:*vdizbtpg?

  A railroad car, of mass 200 kg, qn ri- t4-f xip.r)af1rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a x. n-a1) -f4irfqrti pdistance of 4.0 m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks ,s1 mok+v; i)g0gs1fwe3oilh on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with re)11m3fsog; ihk vol0+se ig,w spect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force sud 87l eam::dduyb74 putdenly increases to 15 N and acts for one more sec: p87 ul:4ayebddt7umond. What impulse 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 objecoa)h kbvow w7lgv:rn( ,98d4*dj -gbq 6kvv3 it's cha,doo*)kj:48wrvkg7 gv6n( 3 a9vqdh- blbwvinge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a o488rr )bey. ga+cd*xqj1 wnp brick wall and comes to rest in 0.20 s. What is the average force the car exerts op+bjr g1rdn.4 qceoa)88 x* ywn the wall?

  A 2.0-kg softball is pitched toj2k+ e+qs cz/g 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+cz+q/e2 gjsk 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 a6 k3u cxcp)*wspeeds 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 0.15 s, what is the magnitud3c6cwk*pa)x ue 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,f+qu 9:maey+ o9mn.gc with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What isc9q+ m:a ofemg9n+u .y the average force exerted on the machine gun mount?

  A fire hose is turned on 6pwm:w68d 3q9mrbrh )ka1wrr m;vy1othe door of a burning building in order to knock the door down. This requires wvwr3y;a kormwmd6h6 mr 1b 9:q 1p)r8a force 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 horizontal drainpipe at the rate of 120 kg per minutt/ltv;zb tu j*a4 fd6y4r l:;oe. It falls 3.20 m to the ground. Assuming th4t6 l/bofdy;:vutjtar z;4* le water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a veloroo)t9 p9 7fwdcity of 40 m/s after 3.0 s, when fired straight up. What average thrusr9 otw9 dfpo)7t force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially :1 hhe)qv:sq)vsr ik6at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has movedh6r)) v hk:isv1e: qqs 12 m?

  A 3.0-kg object moves to the right with a speed of oiv jhg7 /0(em2.0 m/s. It collides in a perfectly elastic collision with h imog/07 (vjea 6.0-kg object moving 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 9f(k p 9wc c:cx2+fadhm/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final veloci w9f2 x9k: chcpcd+fa(ty of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest..0ins;fma 738wjh qpj The bullet emerges (the bullet does not get embedded in the block) with half of its origina0aspnhmq;8 .jj7i3 wfl speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particlal h6y7xzgs*-/9(4 aqekqt zle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-partqe ll*zx-/az t qg 6as9yk7h4(icle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 mm u 4on)v0m (ka,tgbw9o 1f)if/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is tfto 1 n0mm v4ai 9)wb)of(kg,uhe speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed nob*0cvre /gn6c+j(cf hdv *,of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasrcc6vf nv* eod/0gj,ch+nb* (tic.
(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 ; dd 2u+9ipuc90vw ikra speed 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 thedr +9 pivi2u;k0udw9c masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collide84zowjksiv+wyfk5 e46u(r, us head-on in a perfectly inelastic collisi5i,uyuwwvzok+ je8 4s6k(rf4 on 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 u*6de sgn,ei2a7 jht*q 39fqc v, strikes a parked station wagon, who's mass is 2m. The bumpers lock togetherjqfgd* 6q9,hi* ct 2a3u e7sne 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 vertical direction buries itself in a su6ta4 x5o/v-q/:h p.y yntvc2.4-kg block of wood aoty-4y vap hucv/5: qs6t/ nx. 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 w9 +o xrlgrug7;za(pi/ith a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig./za; (l9rr pu7+gx igo 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides kgjow xfxzygc 6v 3 057xe ;zn;uh.)c/with a 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 direction of motion of the cars3)cxzc yvkzg6;o;5 h jg70fu. /wexn x after collision?

  Two objects move on a level f :53yftcndo-+rsj ptcr -d7 0orictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves nortydd- p-t 5f +3troc0c7 sjro:nh with momentum 10 kgm/s. 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 movin/ 2 p lj2yk0yfn-;5ed/jdngk4tix3un g toward the North with 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/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? (tlk3i2p yjf4 jnux0e5;ndy /kn2/- dgNeglect air friction.)

  A 4.00-kg mass sits at the origin, an22cs(*r hpd vt)sh9uld a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-h2stp)hd*vs2l r9c(uaxis?

  The center of mass ofnq: xiq6t,xi4 a two-particle system is at the origin. One particle is located at (3.0 mn x,q4iqx:ti6, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positi7 ywu,tnl- 39 gaigjj,oned as follows: 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 the center of m,9ta73g,uiljy gwnj -ass.

  Three masses, 1.0 kg, ukquvbt6 w(g, z25v5ps t,b-0u)t.x/kjlw mi2.0 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 os )tb,6mk0x5 uvt( i,bqz /2 gpt-w5uwkl.vjuf the system?

  A 3.0-kg mass is positioned at (0, 8 qr5o)zj; *8ig) qw/9t jcahgj+-z ay5 bhfg+h.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4y+g+q5 q) h58 t*afg-haj/czw )z ;9obgrhi jj.0-kg mass which will result in the center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the v7;r89k rn/up d/lgkrdbzk fc9a7f 4( position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tall.d4cr7a/r9br/k lv7fpn ;z8 f ( kgu9kd