What is the SI unit o, + wpwqj1o/fif momentum?

  When a cannon fires a cannonball, the cannoyea5ye o.merd/;7j4kaq cbxrfua;a* 4,-k g . n will recoil backward because the

  A freight car moves along a frictionless level rai n:cm/oeut53xl-3 nkz lroad track at constant speed. The car is open on top. A large loa/ m znt:3e5l-ocx3nkud of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on fri(7*m e 9iw3 ih bg,v/+.oqbrsma+fxivctionless ice. What happens to the velocity omm*fhw er3bii, 9+o qavg/( +x 7sibv.f the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown wi fp/t/c. r:x4 d/;*(peleij )zrh ecuyth equal speed against a waljxepe /htdrf ; i/zp*(r y)4/ cu:c.ell. The ball bounces back with nearly 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 with a momentum p. How would youmss- gl,(4dsx represent its kinetic energy inxsd (slmgs4, - terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prev8dv75r hc3jyx j 1n+1uwtmd u*ious pitch, the magnitude of its momentum c * mnjd tvuh1rj7d53xy1+uw8is

State Newton's second law in terms of moment: *na,o)l5 ctqe-mzjr (( emgpum.

State the law of conservation of momentu0us3 ;o0de vrom.

  The area under the curve on a Force versus time (F vs. t) 8l0zyeg 95 j* v,tob-odbu (rggraph represents

  Which of the following is an acc9pftvq 0.nw3w urate statement?

  A small car meshes with a large truc/.7z f),oitargu u)v kk in a head-on collision. Which of the following statements concerning the magnitude of the average c/)kv fg.oait7u)u r, zollision force is correct?

  Two equal mass balls (one red anbty*z .w 8z; ude5bvbu ,48qrqd the other 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 itswb 8. bz*qytqueb4z5v;d8, ru collision with the floor?

  A Ping-Pong ball moving ew+ 5 t3xehd-5 xkta.wkast at a speed of 4 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 greater +ka3 -. wtd 5ekx5thxwmagnitude impulse during the collision?

  Two objects collide and boh7l ,g2dtaj ;7lyor3iunce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s 0abrr/ yio9:ikz0e4e. It collides head-on with a 6.0-kg objeci9ria 0eb/e zr40 yo:kt moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 8 kou5g.4r rk .gstv0l40-kg halfback4gus 4ovg.rtkk5l 0.r running
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 followib 0 w(gb/t5djq3vax3y ng statements is true about kinetic e3b5(yj 0 q/tvb dgwax3nergy?

  When is kinetic energy conserm :0/j* clhytoly5fr6 ved?

  In a game of pool, the white cue ball hits tcqur::rj: b- she #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The typescr::j -qub:r of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy ex rlcn lo0t6br+vsb hhj2ak :b.u** m4.et cr4hn+.blbj mvs *lb k0hr:o2 u.*a6rcise ball at rest, 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-on collisionbd 49 *uzdt*10rl .)fiyfvrp d with a 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 d0r4l .f9yu)r * pifdvdz1 bt*is

  A rubber ball with a speed of 5.0 m/s collid sdf6ad6ow1rsou)33 oes head-on elastically with an identical3fod6)3uss 6 roaow1 d ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very u*3, qgza.h6q,mygxtlight object at rest. The collision is elastic, and there is no friction. The heavy object bareq tx3.yga6,hg *,uqzmly slows down. What is the speed of the light object after the collision?

  A very light object moving with speed v collh1 nb+hczm( 2eides head-on with a very heavy object at rest,b 21nm z(hch+e in a frictionless environment. 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 m/s c2bo n 08yh0lmy.d r/eqollides 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 ehrdo 08nq0. y/mbl 2yafter the collision?

  A very heavy object moving with velocity v collides head-on with a 6tudd7,kjje/ z m ag+)ec6:1 tlcl7/l j(aqnzvery light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object a/de m:q, et 67cagl 7jklz6tdc+)n1z/ljj( uafter the collision?

  In an inelastic collision, if the momentum is conserved, then which of the foxkuk a cx olt.8g4:1fgo:9kr )/vl0pfllowing statements is t0p4vl: :xtk)gg.kk /8o1oulr fxacf9rue about kinetic energy?

  Two objects collide and stick together. .nbg62*da0pzhqpf. oh5 t u, qKinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in vk2o5 *ijx.oza perfectly inelastic c2o.5z *ij ovkxollision 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 lnqw+v9a)ozon p4qy ibe* g/2/c: *onoarge object and sticks. Which object experiences the larger magni2n +ovb:ye/ / npqwaiq*z9)oo 4oc *gntude of momentum change?

  In a game of pool, the white cue ball hits the #9 bal 7p qv d-agyh6r6-vm+el 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 masses8 a wb*ie:lrdd.pu.6,9 qk;nybksga) , M and m. Which of the following statements is falsq.:e)sapkl, ab d; 9ig 6bn.r*8uyd wke?

  Which of the following is a false sj4;lw ng+x j-ctatement?

  Tightrope walkers walk with a long flexible rod in order tojvn exr;mztt)7 : h06r

  A plane, flying horizontally, releases a bomb, hx)bp0xy9;g5qe jiyd2f- /2c )tcsbr which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmente; yys qbt)ixp)r0h fcxd-2gj2b95/ cs, just after the explosion

  Two cars collide head-on on a level friction-fn w5 m4+c ssl:i5;jemdree road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of thismj s 45;n+l5s:wcid me system's center of mass?

State Newton's second law for a system of particles.;4i84ze ccxoe, /z chr

  What is the momentum of a 2000-kg truck l 8wo4h6w+yii:q0zxu traveling at 35 m/s?

  A 1200-kg ferryboat is moving south h iljacgj wzykre28a:-bo*q7 8k+0b 7., w rhzat 20 m/s. What is the magnitude of its momentlbkjh8aq-yaweb7i0kjgz+ * r hz7wor c 2 .,:8um?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when itta- : 8aqfal3 9aubmg8 strike:uaf-l3mq at aabg898s the ground is

  Two identical 1500-kg carso4ke y;axn1ft2 8* vha are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?nkhe ;142 yavtx8ao*f

  A handball of mass 01ex2sr-0c6 ta(rq y pqqu;5m p.10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whaty(1a2tr6-m ps5xe0 qqqcrup; is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck byq*e m0wb g1a3w a racket causing it to rebound in the opposite direction at a speed of 18 m/s. Wh1mg*b3 waew0qat is the change in momentum of the ball?

  A 50-kg pitching machine (excl0 uo3c+y4armiuding the 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 speed of the pitching machine? (Assume neo3 4a0yrumic +gligible friction.)

  A 70-kg astronaut is space-walking outside the space28zh;c/bwliwz w . hw8 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 aww8l2; wbz whz/ i.chw8ay 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 a large u5josb,8mw/oevet, b*ai*n *object at rest. The small object bsa u* o,,5 *beew8njm*boi/tvounces 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/b,w 9jzgq*s3 es to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while sj q3e,*gzw9bholding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right3e 6z:/sm 0 -.:cfgswfmsc vha along a level, straight road at a speed of e-3.aw06m fszv / mschsg :c:f6.0 m/s. It 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 stopped car that / knl i6fopel6ip;6 xx27mr :d8hi)i lhas a mass of 1500 kg and they stick together. What is thei ; 8h/2krnifp e7:dpi6x6l6l)mxloi speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, isd9 qgp34 nzk0f 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, initiallzf dqn9 pg03k4y at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 20e)s- nrks:t d00 kg, rolls with negligible 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 the0e-n) :tsdskr car. How fast will the car be moving after this happens?

  A 60-kg person walks onxu)92ybkn1b5 br u/pd 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 respect to the) byupu9 21 rnb/b5kxd shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases tv8 yynm4z+i.x0xama2 o 15 N and acts for one more second. What impulse was imparted by these forces to the oa8ivz ya4xyx n+ 20mm.bject?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the o. rm n:owqa5: 93 haujqmop8/fbject's change of velociwfn/9m3up. 5:oqhm: or 8 jaqaty?

  A 2000-kg car, traveling to the righ)b)b1yc8 zz;es m;l dqt at 30 m/s, collides with a brick wall and come)s zl1yeqd;;c b)b z8ms to rest in 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.* re jcbw,zxu3j/( .fu)nk v7v 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 is the magnitude of the average force the bat exe ,v/vj3 *j)n7cu b e.rfzkwxu(rted?

  A 0.10-kg ball is dropped onto a table top. The speo;tr6ay/ :t)u alekn/h5i-u2nm/p cd eds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. 2/5:um nnpyr/-6) lc;tkuae/di hato 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 bullet .jav6h j: 8)scwq7t(at 8pqvps, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the (88qc tpvwqthj a.a6p : )j7vsaverage force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order tt0gq)o y;d/2 uicnv9 io knock the door down. This requires a force of 1000 N. If the hose delivers 4) n29v;g0t cqoyidi/u 0 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 g e6mk; (97q ehq ajc0dy*gr0xrate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force doesxeg yqk6e(;h* agjmq7 r 9d0c0 it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocitypp48+ensp-n+ii p zn( of 40 m/s after 3.0 s, when fired straight up-np(p n+i+z 8pp es4in. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spa8, 6qk,txef v)rgagp4ce. They push each other apart. What is their separation after the lighter astx4p ar)e gk fq,6t8v,gronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. vb+mvsh k4 j4(It collides in a perfectly elastic collision with a 6.0-kg object moving mv+vs b4(hk4 jto the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a0qdxmvj g0 ut;q7r (i1 velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg objex(qt1mqvi d0;0gju r 7ct after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The bulal 5u)xt6zn9 jlet 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 t5uj tnla x)69zhe collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-p pv rh 30*;d7 v lisdkr.lq2f)+vc./aczd dy5sarticle (which consists of 23lc v. sh 2qfddz.s*cdi)0 r ap;v/+yvrl5dk7 protons and 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 coll..g)a qffu.f*9i tl 7fjjgu5rides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of eaf*..u.rt7 l fujqf5 ggi9a)jf ch ball immediately after the collision?

A ball of mass 400 g moving toward the east witxng.s .:xi ikrr.r+:q b4w *kph a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is p.nk rspg+*::. rbi qki.rw x4xerfectly 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(ax e*av(5s cc/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is tha s (c5v(xeca*e speed of the masses after the collision?

  A 2.0-kg mass moving to the easc w /s)fyf2;wsl hw)(/-gptq kt at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg m )(kfws-wh)s/ /;ftgp 2ylcq wass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes ad/2)k aqb wola8(f y*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 thq()kla b/w8od* ayfa2 is collision?

A 15-g bullet traveling 213 mkg2 e(dz1lt i*/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the k12l t(die* zgbullet/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 fdyn1vi 865i -,rodvzkm/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick tog6di-fo v ,1yrvnz85diether after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling b hrii(z1,l 5gat 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 Fig. 7-1.) What is the direction of motion ofbzgi 1ih(lr,5 the cars after collision?

  Two objects move on a level frictionless so7xa*1/o6d d k,x t,f ud;odepurface. Object A moves east with a momentum of 24 kgm/s. Object B moves nfdx ,7od/x;6at do *peokdu1,orth 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 ehel zg 6jamu3m /v02*kg, is moving 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 eastjglea3 mze 2*v0h6u/m 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 origin, and a 10.0-kg mass sitdu;j+x q cotwhve ,+ya8+vr 8*s at x = + 21.0 m. Where is the center of mass otj ex+o;dcv+w ar *88+ hq,uyvn the x-axis?

  The center of mass of a two5rod4n0o n8,1k ngpxow nr)3d-particle system is at the origin. One particle is located g dnokprn)owo 13nx 5dn480 r,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?

  Three masses are positioned as follows: 2.0 kg at (0, 0y*tr +kmp(j(j), 2.0 kg at (2.0, 0), and 4+tm(pk(rjj y* .0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0)5u n4 8gvu+dwk, (1.0 m, 1.0 m), and (2.0 m, -2.0 mwnd84 +5kuguv), 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 9c-7x7fz qvyy 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 of three masses being97- yyzq fxcv7 located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole lo 3o: ang*( 4rjujcaw tarx783eg including the fooroxc*3nt7ar8 aw 3u:o(gjj 4a t when the leg is stretched straight out. Assume the person is 1.60 m tall.