What is the SI unit o4ko9nlt3br 9 ,.joi hof momentum?

  When a cannon fires a cannonball, the cannon will reqe (.gfnyqdpld7 +r(2 coil backward because the

  A freight car moves along a frictionless lev)e 6vx+k;9 /tht8z4eqr(znfsep -g n vel railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happ ks/qhz; fnn vgeee986( +zx4tr-ptv)ens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. ;polh;(j-6m( .ki0a:r, 6iytva sbpe yq ic/ uWhat happens to the kyph ima,.st(i b lo/iyj:6qup;;0va-rce (6velocity of the sled?

  A rubber ball and a lump of putty have equal masshxm(l b-:gyd t57 b1,jn je,gj. 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. Wh -en5jyg1l,gt7j bhdb (: xmj,ich objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentufam5d lmomxwwpc 3j 4b5z192, m p. How would you represent its kinetic f5 m1bmc wd2poz 3m,5w9a4j lxenergy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic enw(jjxfq/k1,v6m z5 ve ergy you gave it in the previous pitch, the magnitude of its /ve1mjjqf , wxkz(v65 momentum is

State Newton's second law in terms of momentut07vq qpe/ i3qm.

State the law of conservation of moment8 dfuce 9poye*38 mtjpxb.cmb9p 1.p 8um.

  The area under the curve on a Force versus time (F vsr1p m,vt t3l* (svk2br. t) graph represents

  Which of the following nk-,bq-ny 0 phis an accurate statement?

  A small car meshes witn :blorwo*9s6 tn .5pnh a large truck in a head-on collision. Which of the following*6n: 95srtno lon.b pw statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are of93 +pd)vwq/lmf)r e dropped from the same height, and rebound off f +wmv3oq)f)dp/l 9er 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, col55k/2wzmwa k22 y8ghh 7+5tu njzslbv9 0sqdslides 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 impulse during 29y2a5hswzvb8h+s q55ug zs7wkj0l n2dmk/ t the collision?

  Two objects collide and bounce off each other. Linear momenq i:qlff(o31l, njz8atum

  A 3.0-kg object moves to the right atv aad cg+rvxna,zsc.vh078. , 4.0 m/s. It collides head-on with a 6.0-kg obj sh vn8a,,v 07rcvgaxc za.+.dect moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebaxnw*+b xkwgpqhxfor-3 ce j68pj62-lh y z8(5 cker moving at 2.0 m/s tackles head-on an 80-kg halfback x 5*8 poeb-(lq6pzj+w-hx6jwycgkxh3 n r2 8 frunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the mo6fo(: nc.pgmq;cu 2b mmentum is conserved, then which of the following statements is true abm;g6b m2.nc:pqc(f ouout kinetic energy?

  When is kinetic energy cd; nn8v6.evzcl0b827kp hqxlonserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 0a0jm5mj3i9h uh2ke qball moves away with the same veloci9h5k 23h0m0muae qijjty as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy evn9(8vg(+ ys 9h rzaw75hb uq/sdbf5t xercise ball at rest, the beach ball's speb f ybt(sv+rd9 8u9zvan /gsw7h(h55qed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a hebn )8xyvxl7 sq3:ibjfn em:4i,l )u l/ad-on collision with a7b sn 8b:nie,:l )j/f3i4ly m)xx qvul stationary bowling ball in a friction-free environment. If the collision is almost perfectly 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 an id2ggkb /bg m(j+:b ij7 ik(cah(a0p (umentical ball at rest. kbigb2au/ k(mgibjh7pc+ 0(a(g : (jmWhat is the speed of the initially stopped ball after the collision?

  A very heavy object moving with sp8 jw-h*d)wrll. 33 knuaii7rd eed v collides head-on with 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 light objer) rduwhki-3dil7*j an .8wl 3ct after the collision?

  A very light object moving with speed v collides head-on with a v wgb o:nz6k2od rb62s2ery heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The spee:so on2gb2w2d6z br6kd of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collidd7-athz+w4 jn6noo 5hes head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yello ah6 oznond+twj -7h54w ball after the collision?

  A very heavy object moving with ve(w/ttj3g 8e xhlocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. Thx/(je th3gw8 te heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the fo kgt;s/ 8si *a f3iuvzh6vj3k1llowing statemkvjk v3h13i*s/ua ;8 sifz6tgents is true about kinetic energy?

  Two objects collide and stick together. )pha i 4aj dzi8)dwj7+Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. 5j9gqtwtc(:jIt collides in a perfectly inelajcjtt( q9:5 wgstic 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 xcs wsktr5h)g/huvdrf+4, 91 a large object and sticks. Which object experiences the lar xc,/rk5hrfs vs) thu94dg 1w+ger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at a nvh 1w;j if7 k*5b1 k(n(wozvv$35^{\circ}$ 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 statemen9ly yk 0z*ice(ts is falseyi*z0 l(y c9ek?

  Which of the following isqw9, d-kdrk/ i a false statement?

  Tightrope walkers walk withjq+qv s yzr o5h+fkjc5*g0/s. a long flexible rod in order to

  A plane, flying horizontally .-tv2xds r/cu.q- xwy, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of .x/ x-vw q.- rdystu2cthe bomb fragments, just after the explosion

  Two cars collide head-on on a level 1ep n ew u1h-wh0jsc +9f:o+hpfriction-free road. The collision was completely inelastic and both cars quickly came to rest during the collisihh wp1ue c-+o: +pnf90jesw h1on. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particles.)8nw f( lftuj6

  What is the momentum of a 2000-kg truck travelipxjck so evw08x:l90 62rw;lkng at 35 m/s?

  A 1200-kg ferryboat is movi k5pq*mhnxyy8)2qp5j ng south at 20 m/s. What is the magnitude of its momem )2yhnx5kjp*8qyq5 p ntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it sr+3xxob9cej :trikes the grouneob3 9cjxx: r+d is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wit hxfw5w) 5zw89 uupw;wh a speed of 25 m/s due north and the other moves at 15 m z w)w5;8xuwwufpw5h9 /s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, striket prz.te2av22 s a wall and rebounds at 24 m/s. What is the change in the momentum of the ba.e ta222pvrzt ll?

  A 0.060-kg tennis ball, initially moving at a spt3g -d 8tw d(.d 2w/*fqwcb60jznhzgheed of 12 m/s, is struck by a racket causing it to rebound in the oppqw3d2f/dhw 0z* 6n g- .gdttzb8( chwjosite 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) x. 6iiknv9o.jis 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?x noj9 i6..ikv (Assume negligible friction.)

  A 70-kg astronaut is spac7ee5kpays5g tn gq:):e-walking outside the space capsule and 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 towaet:a) kyp 57 :qgse5gnrd the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large ovy1 6m 41olqcxbject at rest. The small obje x 614ocvy1qmlct bounces straight 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 o5fvdu 2q-m l)wn ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, whilefu2d-ml )wq5v holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the-m jl6 zo01rw/ ,ixxrh right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after th6rxjr /x w olihm,10-ze collision?

  A 1000-kg car traveling at 25 m/s runsob2g .q/- uq zoir rh)y66ws2g into the rear of a stopped car that has a mass of 1500 kg and they stick together. u.-622 gr bg yi)6szhqoorqw/ What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level trt53a bbypdhk1)a0m -m ack at a speed of 2.0 m/s. It collides a-3ky)mdta ab 1mh5p0bnd 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 200 kg, rolls with negligible friction on a horizonti40aspr r jo*f sb7j-8al track with a speed of 10 m/s. A 70-kg stunt man drops str- jb0ro8s4s 7ji* afpraight 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 100e(,cldf c-k /1mkbl52 s9ctz y-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the shoreec 9l/y1- (t lcm,dkksbcfz25?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly ilg),3kms jlr ht97zi+u+z 2n c f0rt0ancreases to 15 N and acts for one more second. What impulse was imparted by these forcesrh+ug7nk )3,l0r s0zzt9i+jlcat2f m to the object?

  A constant 9.0-N net forchn asuswj5311f6gns 7e acts for 2.0 s on a 6.0-kg object. What is the objectngnsuss13a 5 7jfh61w's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides withv gd/0e oy8t s//,vyyv a brick wall and comes to rest in 0.20 yyvg/y/o8tv e,s/dv 0s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 2bn0yzbf( xx35pscl mb ()/ftryz(:(l 0 m/s. You hit the 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 zsb l0cr3pxy(y/ :f(nbzx(lt m5bf ()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 b+fxyk shj: :3rall 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 magrsh +x3fk::yj nitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, firesy7:- gtzu rubm1p (mhby*3u 6g 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the macpub g m6r-g3bmh(1ut* :yzyu 7hine gun mount?

  A fire hose is turnei zm.zyu.t7y9ys uj06 d on the 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 tum yzuiy.s.y 709zj 6needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rathc,j w0cz,. zp8u xl;we of 120 kg per minute. It falls 3.20 m to the ground. Assuming the wzx.;l0c,zp8 ,jucwwh ater 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 afterquhsa0 uwg4 6( 3.0 s, when fired straight up. What average thrust force does the rocket engineu(wgu qh6a4s0 exert?

  Two astronauts, of masses 60 kg and 80 kgp n: gcetj :cb2z57mj3, are initially at rest in outer space. They push b c:jzj:m c573g2pnte 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 speed of 2.0 m/s. It colsef8x oayjmq b/h3d5+3 (gw-b lides in a perfectly elastic collision with a 6.0-kg object moving t53 d-+8yfwgmjs (3 qxbebo/aho 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 m/s in the +x directiouc af0za* in2cwufff :91*vt.n makes a head-on elastic collision with a 0.15 kg objec u :n*f cz0u*w.i9f2fvfac1t at initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving3crb b9tayce+) ecfq4 0nn 6 2yajph7( at 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) wjp3a4e tbyn2)cf9c7ebq(6 rhcn 0y+a ith half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is s:2 q+ mpggjsht2 ()du:gpc5o dtruck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have aftqo2(s:gg:25 d+pmputd )jchger the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on wittf71lpxv cebp tl)tvg 1(6; 9sh a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediat9gtl11(xt7 v;e cl)f6 bvtsppely after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.z vhfc) p2;rjkc8vcbh 1k4+3j70 m/s collides head-on with a 200 g ball sitting at rest. The cob+h84 )r2jj vk;1hcvkfzccp3 llision 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 i s;0ll+7 : e*ygykgfn3.0 kg mass at rest. If the co l;yl:+seg *fkg n7yi0llision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spee*ce2. vzg 5myt7 oed9bdqnf3s 2eb z4+d 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 lozef4.be2t7q * gzv myc +s39onddbe52st during this collision?

  A car of mass m, traveling with a velocitybiyi( *h/+ jaq 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 /+aiy* hji(bqinitial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a verydyd +wpj0qf+nb-8 z* tical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a res0jy+ddb-yqn wf 8z p+*ult, 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 3000-kg car tra-dhv.v+kt h8n rn,ms* veling at 60.0 km/h south. The two cars stick together after them,nv*d-tsr h v8nhk+ . collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h 1ycg4.swtx ndf gfay bek.-.8s: s.x.east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togetherba .xf .4 d:- csnsyxkg gw8yf..s.t1e 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. Obje- q/chyd.prz h9 (wup:dh:og (ct 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 combined momentur pou-. :9gzwphhq:h d(c yd(/m after the collision?

  A small bomb, of mass 10 kg, is moving towardefz l).6jp+i5z gzd8k the North with a velocity of 4.0 m/s. It explodes into three fragments: .6)zjk epdzi +l5zfg 8 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? (Neglect air friction.)

  A 4.00-kg mass sits at the ogbvib )f2wj5gg-el0 mq.9 tb+rigin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axisw+bgiv.)bb9 l5tg 2q-fjgm0e ?

  The center of mass of a two-particle system is at the origin. Opcpugxhb;d7qg iu*9p17n a -9jea 4xp c49uf7ne 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 7uupf1ppj 4na79ec7 ipu* 4;bgx q-ghx 9ac d93.0 kg?

  Three masses are positioned as folnm et 5c /-rm1ghxy-qn8d,l6rlows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determinmgnclher 8n6mq5-y,1x -t/ rde the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 moim8p9lgr;b y ,re:bvey3 on8 ,n y52rgfg p6*, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the l g8vin6:2f93yrgr,8bbngm;y peo, p*o rye5 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 mass is positioneyf72v st.qfg6 d at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three masses being located at the origin, (0, 0ft f2q6yv7gs. )?

  Use Table 7-1 to calculate the position of thesz c7o 7lw)j ryrn*;l8 CM of a whole leg including the foot when the leg is stretched straight out. Assume the person i *cnrz 78wy)sr;l olj7s 1.60 m tall.