What is the SI unit of vfe8) +-q kv/p8unm(d ke 6jtpmomentum?

  When a cannon fires a cannonball, the cannon will recoil backw4. igr-hx7+cvmz 9z )4sncjzgard because the

  A freight car moves along a frictionless levei3o+nh+snbd+ vl/kt+l railroad track at constant speed. The car is open on top. A larg l++nhv+t/o nk3i d+sbe load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off abcl vw q2obd)glgy7 v,( +z+i, sled while sledding on frictionless ice. What happens to col,iq (g)b+lbvzd +2 ,gw vy7the velocity of the sled?

  A rubber ball and a lump o 2*4+a fqecivjvb:l9l f putty have equal mass. They are thrown with equal speed against a wall. The ball bounces back with allef+4 q2cb j*v:9ivnearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving wityse8h8 o4qrzdkb b,v6n3h ol 8- g.kxbh9l3e+h a momentum p. How would you represent its kinetic 3b- h8zelk ebdgyhrx39b8o6l.q hko4 8v,n+s energy in terms of these two quantities?

  If you pitch a baseball with twic e1w 8c1h66;b8rx ni d4uxvwtoq9rv)/:ewt lce the kinetic energy you gave it in the previous pitch, the magnitude of its momentum16x6xub8r 9 ne8) d4t:/ircoh; 1vewv ltwqcw is

State Newton's second law in terms c9d7+,m13+fc ef6w alnmejxhof momentum.

State the law of conservation of momeoh* au0 )ykdbp)t7k+q ntum.

  The area under the curve on a Force versus time (F vs. b ir7(0r2znngt) graph represents

  Which of the following *ae5wb.q3*ja 39qjo kozrmv5is an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the f:,w7 qqjnl8vx2bbz .w ollowing statements concerning the magnit qn2w7wjv: lbzb qx.8,ude of the average collision force is correct?

  Two equal mass balls (one red and the othergtuzc)pl n-gqg78u 3tw;:we: 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 ug;8cgq7l t3ep::tzu -) wwngof impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary t66u7 f)ufsnbh z9 l41jox/bp bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experienceous6n4z fb 6) h1l9fu/xbt pj7s the greater magnitude impulse during the collision?

  Two objects collide and bounce off each othe+chdj/ n6mf+ar. Linear momentum

  A 3.0-kg object moves to the right at 4.0xt)*0 v br7k biwcqd+* m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statem wt)q7*cb rxb+d0vk*ient is correct?

  A 100-kg football linebacker moving a y d)uykgx--x4t 2.0 m/s tackles head-on an 80-kg halfback g)4d --xkuyxy running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then + .kgey+(+fbt.yw jj kwhich of the following statements is true about kinetictk+j j k..(gybew++y f energy?

  When is kinetic energy conss1z sq kx-;z3z+qv00 ysfh d6xerved?

  In a game of pool, the white cue 5p0n4xo0 nkasball hits the #5 ball and stops, while the #5 ball moves away with the samsp a 0kxnn540oe velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0u3y:qak*po u0d e ldt )s24d9a m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, appl sek0 a* u tod23p4:qu)ad9dyroximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision wa r3q ze(g1-u)nsxfg ,b*8x neith a stationary bowling baexs8 ugqb ),ng1a(re f*3-xz nll 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 elastical*iwtt;*80titokdp;d e ,3sry ly with an identical ball at rest. What is the speed of the initially stopped ball ttt d,8*k ;esiwo30;*py itrdafter the collision?

  A very heavy object moving with spe.ca3 buq9l 5zxed v collides head-on with a very light object at rest. The collision is elastic,zal5b93q cx .u 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 movi fa2.lv(. vqm jot4xq2/qrju, ng with speed v collides head-on with a very heavy object at rest, in a frictionless environme42ov ( ,x2fvt / jq.umql.rjaqnt. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 mo.p thmn)( 83 jo0ltsd/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 collit.no0mo hpj8)d (lt3ssion?

  A very heavy object moving with z9nu8 i,1 gezcx/mwmi z*n6wk403alf velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and ther9emlcugn z0i3na/z*1 kw xz84 i,6mfwe 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 conserved, then which of v0 pdr fe3l+yu* 0e) lf(9kchrthe following std0lvf)crl*f3y9h +e eku0pr( atements is true about kinetic energy?

  Two objects collide and stick together. Kinetic energyb s2 j3ny(e2(wq/bkc )r6 lgnv

  A 3.0-kg object moves vesvz d4d31 +fto the right at 4.0 m/s. It collides in a perfectly inela3 s+fdz4de v1vstic 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 objv+6l p8li.w sez7n m,j , rtwzq32s.paect and sticks. Which object experiences the+wwzpslp . 72i 6zvsr m,3j e.8lat,nq larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 bxr42:.gqdd xqd y *uw2dtj+grn:b: 6rall 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. Whzbi.d)v h; /ojt :oapy27sza9 ich of the following statements is falsepiz;z:ho.ytja/2oasvd 7) b9 ?

  Which of the following is z3msuq+alb 3,a false statement?

  Tightrope walkers walk with a loknj1* i:7txrq17gv hbah zs1 .ng flexible rod in order to

  A plane, flying horizontally, releases a bomb,n kz iv5t8q2)u-o)m v1vpa cg0b(ga7z which explodes before hitting the ground. Neglecting air resistance, the cen ui-av g vqb0gt 8()opm1czna )2k7vz5ter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was compl 1qqshhvq-03 qetely inelastic aqvs13hq q0qh-nd 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 secondy5- . gs7w::dt0jq4pr irnox h law for a system of particles.

  What is the momentum of a 2000-kg truck travelinca3c/j,wf sk) g at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of i ampk8b 5i ajkr;aj -f,.j.m4ats momenaa .4 ,j j-am8i.a5fb;rmpkkjtum?

  A ball of mass 0.10 kg is dropped from a he,yp-qll-4la is-nf)l ight of 12 m. Its momentum when it strikes the ground n ip,)-l-a sqyl ll-4fis

  Two identical 1500-kg cars are moving perpend0f/7rakpex g)icular to each other. One moves with a speed of 25 m/s due norakfe)/ pgx70r th 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 at 30 m/s, strikeq3qyvm bt)-vud vh/;wyvh 4g l )u2l(*s a wall and rebounds at 2bu q*2);uy3l4g y- (vmlvd) hvtqvw /h4 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving a 1x,(v,jlly gct a speed of 12 m/s, is struck by a racket causing it to rebo(vxll cy1,g,jund in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machinfp7ixku9: ;3hrg 5sluu.pk7h e (excluding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball p 7l7ixs35f. :uuuhh9; rgkpkwith a speed 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 stmjuk0 9)sv *txsg)qua (7a:cs ationary when the tether line breaks. As a means ofsjm*kx(u7: qsvg)ata0)us 9 c 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 momentum 5.0 kgm/s approaches head-on kw6,jy0ut7 a klx,n(y0f ib)g a large object at rest. The smallgbun)tax f ,jl0yk,(76 kyiw0 object 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 on ice at 4.0 m/s to greet sa8u:mejf9+ o)rl6 ncyour friend (40-kg mass), who is standing still, with open arms. As you collide, wj86eo) fs n9m :+caurlhile holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road at a spee:b6c3veka+inhq .i+hd of 6.0 m/s. It c. :3k+h+bhqa nei6vi collides directly 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 stop/zqjiff,yo q-h 4g(7fped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after thzf (f/q-oqh4fi,7 yjge collision?

  A railroad freight car,7izl *ohtc:i . mass 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 car, initially at rest and with brakes released. What is tch iol*7t zi.:he speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rollagzh5:x q;98 gtqro q) pv2zs:s with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt mans) q:ph xvg :8ztrag2q; 9qoz5 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 walks on a 100-kg log at the rate of 09rgfdluoj5 ,gxf)h)zvj 5zw9x2xd;3 .80 m/s (with respect to the log). With what speed does the log w ,g)dh)djojxr fl35v 5fx9z;92uxgz move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increl blhe0 4:;tkz lpfw gx)3)fm,ases to 15 N and acts for one morexh l)t,m w4kl fflbe 3z)p:;0g second. 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 ob tg9ta*/p tz:w u*sen+ject. What is the object's change g/watzt9: **se+putnof velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a bryubtn37 yhzu,d1 y3x)(wwmpz i :f k81ick wall and comes to rest in 0.20 s. What ,u1un)m3b:d7yh3 zywxfyk1 z(8i wpt 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 th).4r n9ekok dwe ball back along the same path, and at the same speed. If the bdewkko4 ). 9nrat 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 ball right beforp rohhc98b 0r6e and right after hitting the tablrp8co b0r h6h9e 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 vel l(vxvs(*4(u9ujkrgrr * bd3olu(c v-ocity of 75 4xc kr*u (v39ulg-vru(d*((bolv sjr0 m/s, 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 the door of a burning building lq -)5 ixfs9:xc/xx. qwysr /vin order to knock the door)lx9/:iqs-c.x f qsw5vxyx/r 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't bounce back?

  Water runs out of a horizontal drainpipe at the rate2s07jf39q.wvzn u cwn of 120 kg per minute. It falls 3.20 m to the gr3s w vju0cq7nnfz .9w2ound. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass y2lqdj 7 g4iu;s pb hr8b 192htlxu- qk+.8ugz0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired 82 7r8-llj ;xpibh4yqus .zg uh9q btu1g+2d kstraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initial9+ -wd:f 3h 4iwzlvax j0ngx,tly at rest in outer space. They push each :v3 ,x z 0aw4gj9h nl+wixt-dfother 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 collg *l*5demrm9 iides in a perfe*m*rd 5 ligme9ctly elastic collision with a 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 m/s in the +x direction makes a heav:1c dx 4 jrzefmi1,1ld-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?imz 1xf4: eldv1r, 1cj

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. Thlo9yl)/ oos6 ;sqomm*:sk/ mq e bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after ;ollokm9osoq /m)q6sm /ys*:the collision?

  A proton, of mass m, at rest, is stfcc4:w3o 7jzeruck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the colefj34 c o:wzc7lision 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 collidesm s n9dkck0i(m* sy-,h head-on with a stationary ball of mass 100 g. The collision is elast0(,ch9ksdmsi n *mky-ic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east fsm+pnan skj**41a2 qwith a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisio2*fpa+k n 4am 1*jnqssn 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 bl hm/z gg435 2o, urr-5bpcxdcollides head-on with a 3.0 kg mass at rest. If the collision is perfectlg-c52/xmb,h o5 p34ldburgz ry inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at ams1z m2ou)ac4 fd g/9m speed 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 lost during this collision1so2fgmz cdu)mm4/a9 ?

  A car of mass m, traveling with a velocity v, strikes a parked statidw : sjr9wx6 6puy: wczqgx7h 6gw*j/9on wagon, who's mass is 2m. The bumpers lock/w z9r6uq6w9dxpg*jx:swhy:j6w g c 7 together 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 buriempas5e fx3,6ab, pm 4ls itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination movef5e al4 ,,p3pam m6xsbs 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 300 ydqnp0rlj ef-y :joxk99-5k9 jd6dj00-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. kpl- 9re-0 ko9 ydf:dx9 qd50j6njjjy(See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling 0pp+zo(mz e :w;h( rjpj9vu/xat 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See p;jo9jpx hr(wu z:e(+/p v0mzFig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on ak y 9:j6bc 2xyea zxiae*835vw level frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. Twyy 3 vj9i c*ak5e6:2bae x8zxhey 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 velocixgnm3f:1:xa+y gh z9l ty 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 fragmeng f:xzahx+91:l 3g nmyt 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 -j vydl1smjy,w q,c32at x = + 21.0 m. Where is the center of mass on t3,c1j s2lqdjm-vy, ywhe x-axis?

  The center of mass of a two-pea/yaueba;j6u. o 6k,ukf p71 article system is at the origin. One particle is located at (3.0 m,./ 7uf,ayku6bu1p oejkaa6;e 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0),72x 6mg/; i( uv;dgjkvgjj i1i and 4.0 kg at (2.0, 1.0). Determine the coordixj1jvim/k;(udggg 7;ivi6 2j nates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are los+z/yl2sss4c3cct9 b 9s9 efb cated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 lscy9 t+c29escs3f9bsz4 s/b 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), and a 1.0-kg mass is positioned ae yxv4sr 0om+lb;y3lm5tt17pt (12, 0). Wlym1v 57; e0po+ yttrmbs34 xlhat 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, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including the ;/.ntcapw o(ugxl.(z (tb9e nfoot when the leg is stretched straight out. Assume the person is 1.60 m z/o.n l( b; ncpwtxa9.((tu getall.