What is the SI unit of momm1 t 0wgm h(5kuvt,mo3entum?

  When a cannon fires a cannonball, the cannon will recoil backward k 89idk g,5zduz;+fvlbecause the

  A freight car moves at2/)70w:g;qy dqtv cu4zb zn tlong a frictionless 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 veloci2q t quyngvtw)0z:zdtb /4;7cty of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What h:) t7.uh ygts b/wir-rappens to 7/ty:r-ws. i hrub)gt the velocity of the sled?

  A rubber ball and a lump of putm y-)2a6 2x-zjo,si lbrqwhv6ty have equal mass. They are thrown with 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 objects experiea x),6hosriy6- qb-z2 mwvl2 jnces the greater momentum change?

  A sailboat of mass m itm a28qx +sfrik+x.e3 s moving with a momentum p. How would you represent its kinetic energy in terms28xmfi.3xt + qs ak+re of these two quantities?

  If you pitch a baseball with twice the kinetic energy you d5 b/yx,vo4b86x+4i- ui eam zpgu i4wgave it in the previous pitchy pvd x4+,me8 5/ igzii6bbouw4ax-u 4, the magnitude of its momentum is

State Newton's second law in terms of momentum.adlase z:30q, q0o xq.

State the law of conserva82kvt/t lper 2tion of momentum.

  The area under the curve on a Force hm4:osrd h v uqz/pphm199c46versus time (F vs. t) graph represents

  Which of the following is an accurate std0dr9 b/z(mzu+3p* jogj 8xph atement?

  A small car meshes with a largejm7 6euuu9bi- truck in a head-on collision. Which of the following statements concerning the magnumb7i-u ju69eitude of the average collision force is correct?

  Two equal mass balls (one red and the otbnc9f/-zr /h8c3qxin her 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 its collision9cnc -r/3/ fhiz8bnxq with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bos*cwze 77/ a)sjf a6x:x j2gkdwling ball. The Ping-Pong ball bounces back to azj:s7fs2xd) 6k*jxe/ag c7wthe west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Line x52zjr: qy-7aequ:m,n5 agcgar momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on2nbnn+q 6ge /lqr (iqcg6jrh vo6zq)r/ 6gt.* with a 6.0-kg object//oq r2nvj gen g)(6gizchtrqbr 6l6.+ q q*n6 moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tacklf xnrqrxe8(u1lgjro*s ) +5/t;o xj v(es head-on an 80-kg halfback runnxu )g/8r+oo(5 ev;nxqx*( t jsjr 1rlfing
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 followi. q: gy5kl( xxuo-pv9xng stateme xkyqlg.:p( -oxv9 ux5nts is true about kinetic energy?

  When is kinetic energy con tfk5box9w5xoc)w9 1a served?

  In a game of pool, thsye .(j0+unl jy4p6rsjzm0,ze white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as t jny+0le z(sj6sp,yrmzj .04uhe cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/aew98 ww6qt r;s collides with a heavy exercise ball at 6tw;a 9rew 8qwrest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-ore)+)jtxj*b4k- , g n-qobx qhn collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed o)xte,h)r- nxb kj4g-b * qojq+f the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with av/zo:a 8wuh (8bsjp0d n ident8p/j:uzd a08v( wo bhsical ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides tdqrl(i 4:h o/head-on with a very light object at r4 :dl o/irh(qtest. 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?

  A very light object moving with speed v collides head-on with a very he7yb) zq(: xl0tdnya.hg * dca2avy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The st7cdgnq:)x dy *laz(h a20.bypeed of the heavy object after the collision is

  A red ball with a velocity of +3.0 w,to8ytu-) /c.v dn btm/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is thedty.t b- w o)vnt8/uc, velocity of the yellow ball after the collision?

  A very heavy object moving with vewmo 4pbe ;b7h/jn+66hd7yk z suoi9;vlocity 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 slows down. What is the speed6woho 6s7+d nbjk7;9; z4uem/yip hbv of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of mau7yij0j4/s6x s-ltagho.c6p d.e ; the following statements is true about x /sajo-0ljaiyhuc;. g6ms6 e4p. 7td kinetic energy?

  Two objects collide and stick togez mki +4v gdis0g:y7j)ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. Itpt- bwnu3aeh-7/ rn r* collides in a perfectly inelastic collision withbt* punh-3w e/nr -ar7 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 experience 1qqn awltiz,straq:dwo 8o 5a5)- p):s the larger magnitude of momentum chaot:5wiqz8: td)r),qp a qa5s nwo-la1nge?

  In a game of pool, the whn8 ta.pi)3/nwd )twbtite cue ball hits 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 massesq: hw:xp33u3 udyjbtvzs d 64yp(yk9* , M and m. Which of the following statements is false?v huuk(33qdj : xy6:yzbwp4 3st9*pdy

  Which of the following is a false statement2v)sgs5 nvlm cuu;7xs ;oz d81?

  Tightrope walkers walk withh 7k 7,dxjl -mi)oaa(g a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, cw/lr3ms y86wwhich explodes before hitting the ground. Neglecting air resistance, the center of/m3wwl6yc rs8 mass of the bomb fragments, just after the explosion

  Two cars collide head;t.f316pshplf 8h:v3n moavzgec- 5y-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to resvt33 5pey ma;fg8:fz nvh1s phc 6l.-ot during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system oee wzeo .-p1,sbzdv*78a+ wbrf particles.

  What is the momentum of a 2000-kg truck travelin er ;*+ gr5po37ae/q;dyz zbaig at 35 m/s?

  A 1200-kg ferryboat is moving sour4d+gapk-tt g ,* sfj;th at 20 m/s. What is the magnitude of its momentum?4ja*k t, dfr tp;+gsg-

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momen -h0w(cgvsy) mtum when it strikes the groundhs0m)y cgv(- w is

  Two identical 1500-kg cars are movin- q 2/ u:g+jjdbfyi/f.+cpuejg perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due ea-idf+ :g ej / /ypjfcu2qbj.+ust. What is the total momentum of the system?

  A handball of mass 0.10 kg, travuave0 vn+vt3 5(ursl :eling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ball?nlv+etur 0a( sv 5:3uv

  A 0.060-kg tennis ball, ini/qrs5vl 8hd 4.olvjthl.3 qg 0tially moving at a speed of 12 m/s, is struck by a racket ca08otq lj4r/ 5 l3svdl hq.gv.husing it 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 8,l6:s :mpdaeb pssw 3su5m:eo ls-t1ti c+w 5placed 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 ofs51 s6:i,t:sms ese8- m p aw:+o u3bltl5dcpw the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking oumw/f,s*d;dh* k tc.kkeo/, kvtside the space capsule and is stationary when the tether line breaks. As a means of retuf/ckv/omd* .k*wt hske;k ,,drning 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 approach:9qy5l+s9d*hgnr )xyp;m d jqab kn/3 es head-on a large object at rest. The small object bounces straight back with a momentum of magnity);r:ndgd53x as q /yl kqjbhp99+ n*mude 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 gre9lo p/2o(qx*wnwve(z et your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with v 9ezxnpw*oq(w/(2l owhat speed do you both move off together?

  A car of mass 1000 kg moves to the right alfqin9 ( sqh*k gluls+6sb15d3ong a level, straight road at a speed of 6.0 m/s. It collides directli *qhd9(16k lf s+5ulb3ngss qy 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 a stopped car thatw;k zr .w*acn1 has a mass of 1500 kg and they stick together. What is the speed of tckw*1z; wra n.he cars after the collision?

  A railroad freight car, mass 15,000 kg, is alloweuxf 3fx giyz0(qdpi w(i:5.d9 d 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 .uzq5(3(: i9pd wdyf0ixx ifgwith brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with soucxxt3- k2p81l)ipevc* ) fnegligible friction on a horizontal track with 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 wit c8pep xvli)3k sco)f1*u x2-ll the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 q kgeq )rpikm ljm*l2ziz, 6gu4+6;4c2i yl0um/s (with respect to the log). With what speed does the log move, with respect to the sho6pgi *yz cujlgir4;z) +42kql 2mk06 meuilq,re?

  A 4.0-N force acts for 3.0 s on an objlcru9p jz kxh+6*o94 q zk70j)d zcu1dect. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forcerzuhouq7zxj1 k4d9 ck jd6l*90p + z)cs to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg h,rvp bzd)jm o;-k c4oo/wl7f.6us3x object. What is the object's change of velocitu)b-s/ zd rl4oovm3 j.6wx,k; p7foc hy?

  A 2000-kg car, traveling to the right at 3x/fuu*+ 1f cuv3j*jsf0 m/s, collides with a brick wall and comes to rest in f3 vjus*jf1cuxuf+ */ 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit t+6m*zald) hs ahe 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 magnitude of the al)am a6zd*s+h verage force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds tiu5 )kqstl7i4pvaa)0nf3 j1 of the ball right before and right after hitting the tabltf p nlqi7t i14)a 5k0v3)jsuae 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-grate *jxhu;8wftxq(evg* (us+3m bullets, with a muzzle velocity of 750 m/s3tt; ee +xsvgj8u q uhx*f(w*(, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on oh)93jz;hc2o p0 u kygthe door of a burning building 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 needed, assuming the water doesn'ckh j u g2;oohy)30pz9t bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. juu6 y94env njn, ng e(yx7h6aq9-+waIt falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on g nneyq4 (ja9u, aj 79huw-66nv+yexnthe ground?

  A toy rocket, of mass 0.12 kg,hv +tok 6w*z0z achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What averag+0zwo t6k hvz*e thrust force does the rocket engine exert?

  Two astronauts, of mass(ln-xw8b g/ opes 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut lbnw p(o/ 8g-xhas moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a perrq/x jwhex -4x7 q94hufectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. Wejq7 wrux 9/hqx4h -x4hat 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 head-o:hpzh*tor:o6z tm 1s5n elastic collision with a 0.15 kg object initi6 r* 5s:p1 ootthzh:zmally at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 3r4xq:(my nb0r 00 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its o0:4ybm( rxrqnriginal 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-part)-g.w5dyqgs.yg s3k kicle (which consists of 2 protons ankk)gy-qs .3w5g g.sd yd 2 neutrons) moving at speed v. If 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 +10 m/s collides head-on with a stationap 0/fja/cw dwfg 29l051hh binry ball of mass 100 g. The collip0 w/w9cjlh0hb / gf1a dfin52sion is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward fu: 10 y;ewr/ outtku3the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at res0 /3tk ;urow1u:u yeftt. 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 collides head-on with a 3.0 keg s4i(j bwt)dz 8rwsinzcph0i lw,3*11j 6v; g masig*wr01t,c3)si 8w(6ies hlbzzn j4d p1 ;wjv s at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east a259 nq5 bcjvrzt a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kjrnv 2cz55b q9g mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling 6/i7qnc. fiq gwith a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fra/cii q.g67 nfqction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s i9urw -c8tu)p za-e65oi 8)yfow:di fe n a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verticallyeufwd -zt-)afwcirpo:8)8ie96yu 5 o 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 3000qd3ab ky)bg oxuy*.s3pb*4uc9lx 9/x -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 ps9xl9 3axuy4k** ubx)dgb.q/oby c3 of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collide r6*bdreqjz;/z -5ukmh0b6aa s 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 6 jb0u;a*-rrz/ez mdhkb56qa cars after collision?

  Two objects move on a level frictionlesis;tko* jekt 6 hn-0j:s surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north wit s60ihto*tekjj:nk -;h 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 moving tow66 c/ ldxpxgy(+0zogw ard 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(+p6 goyzl/xg06dc wx 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 sits at x = + 1spe5bmh9l( y 21.0 m. Wher51e s9 lhy(pbme is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin.+t)9k(y y vvsgry3w7vidn0 )q One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg nt(i7q 3)0ys+g )dryv9yvw kv?

  Three masses are positioned asto6t/t eo*.zt p/d 4xi follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine ixo * .p6//ztto4 dttethe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg r 9edt76m.9yx8o eo0kz;pftd, 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 matf;d7rk8 .xyde t 9 mo9po60zess of the system?

  A 3.0-kg mass is positioned at (0, 8.0), n)h jkmhu;, v2and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system mkv)2 uhh,nj; 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-u;w1al ;-c s vi-a2 ebr45vg2ga g ;yintqy1lhe foot when the leg is stretched straight out. Assume the peryq -2ga1ea;1i-gv5iylv -r;s bwtl ac4; 2gunson is 1.60 m tall.