What is the SI unit of momenmo8;bp/fp ;kn+uq f/ntum?

  When a cannon fires a cannobbllc 2p /j2-unball, the cannon will recoil backward because the

  A freight car moves alonz 7bh0(m 0vswmg a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the0 zb 70msmhv(w car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on fricfvmujd.v 0o9klk*(s nii 51 v5tionless ice. What happens to the velocityv0 ivo .n1v5ld*fk m (ik95jus of the sled?

  A rubber ball and a lump of putty ho.b( gwapjg 1r5 c8u6 v5wp1cbave equal mass. They are thrown with equal speed against a wall. The51gbp( coavgb w5j u r81pc6w. 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 msbd q0b1o.l1o:m ok4v1lzcd2gg;-bt oving with a momentum p. How would you represent its kinetic ent1gmlqb :1c4-2lodgzo 1. o; s0bvdbk ergy in terms of these two quantities?

  If you pitch a baseball with twice the k ofp 1mi8ev;m:4bv9urg 2 g3xtinetic energy you gave it in the previous pitch, the magnitude of 8x eb;iv pfg:r491g mv3tm uo2its momentum is

State Newton's second law in ter1yvjt39:cqj 2 :4 4q jdvfqoqsms of momentum.

State the law of conservation of g1bdbo2gkq .0 sy(mcz6 s*td(momentum.

  The area under the curve on a Force verojvtx0:w; sb9,v;4.hcil dv3j 0 xxr zsus time (F vs. t) graph represents

  Which of the following is k/iezw6 yi;9lm 1l:7il khz m*an accurate statement?

  A small car meshes witht42i)t.y or9 ,, ryc0pvdjba e a large truck in a head-on collision. Which of the following statements concerning the magn)vb.ra e,c9 2jp4id,t yytr0oitude of the average collision force is correct?

  Two equal mass balls (one red and the: r.y o /mwfkg:lh9h *e1h/ ykszs7wx6 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 its collision with thes h wh o/s z7m*6:.l9xw/ryke 1y:gkfh floor?

  A Ping-Pong ball moving en pu4qpe5q**d6r :k*/q.kwsw5 wo my east 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 movesm 54*ko*.sypne /udwwq*k pr:q5 e wq6 very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bouncomsa .19jhd4i e off each other. Linear momentum

  A 3.0-kg object moves to the righ0pw gyfsv4i,ask)/t 3t at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statsyitp/ f4wg, )3kva 0sement is correct?

  A 100-kg football linebacker moving at hil0m,yf hos9g;q/1 d2.0 m/s tackles head-on an 80-kg halfback r; q,0f ohylgh/d9s1m iunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentn)v xpw wmo:v+ n(6)wd y6je;tum is conserved, then which of the following st)( ;6)oexyp+nv:jmtnvw6 dw watements is true about kinetic energy?

  When is kinetic energy cyyyw qxp 0b5c0 .a.a;rp-d,o9wlnbr/onserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, whi/dlao:pf um7)2p ) fo38 vguvale the #5 ball moves away with the same velocity as the cue ball had orifo )uvg8aa 27ul)o3mdpvpf/ :ginally. The type of collision is

  When a light beach ball rolling wi*mo.bqw.,6e qtznw( 5 +hitunth a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed .*(hm6i e +. n,5twtzwbqu qonafter the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a p1. pji;-z)l9bjzbo;1yzwxb head-on collision with a stationary bowling ball in a fricti i;zzzjbp x1blyj)op9 w -b1;.on-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 speedycsffbsd 2f*,3 -: xxht94ylo of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopp fhb3*2l4 oxxs9fyscy-d:f t,ed ball after the collision?

  A very heavy object moving with speed v collides head(d,t7on 9u5qo u 4lxd k;)utuv-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 speu t,4o5)n7v;x lukud9ouqt d( ed of the light object after the collision?

  A very light object mo l6/ vaazg25rw g;tdt0ving with speed v collides head-on with a very heavy object at rest r6 5da0;agv/wl2tzg t, 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 collides head-on with a yod,2o st9.;tjikv :moellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of.jo,s ott 9i :2kmo;dv the yellow ball after the collision?

  A very heavy object movro8li;x .6kw6jqq k8n8 uuq,jing with velocity 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 speed of thij8rq6xju,6 u.kq8 nql 8k o;we light object after the collision?

  In an inelastic collisionswp.fa+5.b/1 a lmu cj, if the momentum is conserved, then which of the following statements is true about kinetic e plw/+ .b1.mc5f aajusnergy?

  Two objects collide and stick together. h y d77kn n) 2(g7)hjsw *6lvnj(vjxbyKinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfect 4fr5vp v6g;7b1xsenfly inelastic collisionprn1 fv7f ;b 4gxvs6e5 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 objecipvzzx 7b,,yi9 iz11:g iy/ gnt and sticks. Which object experiences the larger magnitude of mo,g7nziiz1,gp z i1:yvix9/bymentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at5ll jvlfztj0g 35p7j)n i *er- 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. Whichq2 wsn1eo5i8zpf 5u ).bn7sr d of the following statements is falsebefp5 zn1qsd.ru7 2iwos5 8)n?

  Which of the following is q1u t,uq8 be+qa false statement?

  Tightrope walkers walk wi*6k4v-hu jmi,9xb n shth a long flexible rod in order to

  A plane, flying horizontally, releasevvq;aj0g hq:)s a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb f)q0 j;h:gvav qragments, just after the explosion

  Two cars collide head-on on a lel cizi* 50wtmd1 2li8zuqvhh wff*;4; vel friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's*; i50il4 vhhmf u*itzc 2 q8;w1dwzfl center of mass?

State Newton's second law for a system of ps o)sf1/qf4rdarticles.

  What is the momentum of a 2000-kg truck trav, zl-/e+z) oa0d6( fe yivakqjeling at 35 m/s?

  A 1200-kg ferryboat is movinglsq/3 6a1gfa m s;8iwn south at 20 m/s. What is the magnitude of its momentuws/ms8l3q;a1igf a n6 m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mo/ pw/w-cbr hm,mentum when it strikes-hb rw/,wpmc/ the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wi1hko95/ ;ovi1q6s kkve 1ca hxth a speed of 25 m/s due north an9qv hh1o k6;xea 11/vsi5cokkd 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, strikes a wal)5aw)0qmg eznwyeu e( ci0* t;l and rebounds at 24 m/s. What is the change in the momentum of the b w00m q(zn*yc 5u))tag;iw eeeall?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is *u 7vwf9an :nr,* misk /uul;mstruck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What isu*a:/rmnk9lvsu7u n mw,* fi; the change in momentum of the ball?

  A 50-kg pitching mac zhl dxvq5(x-6hine (excluding 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 zlxdq 6x(vh5- recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is st98kt9j5 pgh o3u7 tizfationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-k 7githof pjz5t989k3u g 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 mom8lgz fjmim3z v;o65wh .cj9 -ya5lfg7entum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s.ilm wc-fm9. vg8zo557 3fa 6 jzhlgjy; What is the magnitude of the large object's momentum change?

  You (50-kg mass) skateug0q/nj;mn9) ww8 wjj on ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, withuj9jn;w jw ng)/mq8w0 what speed do you both move off together?

  A car of mass 1000 kg moves to tjokfvpd1v54c nw054.f agp 9u he right along a level, straight road at a speed of 6caf1udpwo.jpk5v9 04f45v n g .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 uf 1k zxez k7t::p81tu25 m/s runs into the rear of a stopped car that has a mass of 1500 k8k: 7kpteu1u1tzz: f xg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is3go t7g kpa9 z4n)+ri6at+gbt allowed to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg seci+9pn r 6tkgg+tb 37a4)gozt aond 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 frice: anj;al8;x htion on a horizontal track with a speed of 10 m/s. A 70-kg stunt8 ha;xlj:ena ; man 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 ratn nd7n +an,fw2e of 0.80 m/s (with respect to the log). na7nw d2nn,+f With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 xzy4 nz)+zxuo hz+:a x9 i7rv4s on an object. The force suddenly increases to 15 N and acts for one more second. Wh+zzrh a9yv74+xxz ui :z4x)noat 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 objektv)a 4tv);) qsfje,yct. What is the object's change of velocityt vy f jka;v,4qe)st))?

  A 2000-kg car, traveling to the right at 30 m/s, coa g1j6r3)gydellides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the ejgyr1gad3 ) 6wall?

  A 2.0-kg softball is pitched to you at 20 m/s. 6klx*g3)h mtpc4/y3fm r-hjj 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 f) k hpj* t6xh3y-crgm m/l3j4s, 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 rl8ga 2fj+ec1v 5bac(uight before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision betwaafgl+c 528ce1vu (jb een 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*lkm+b;/ 7hnlsai ec7.0 kg, fires 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 i7+*;bc e7slka /nhlm exerted on the machine gun mount?

  A fire hose is turned on theepv7,-,nz kn t door of a burning building in order to knock the door d pnnvk,7 ,e-ztown. 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 rate of 120 kg per 5x(vd:2kps7 n m7 cdriminute. It falls 3.20 m to the ground. Assuming thmr75nicsv px7d (2:dk e water 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 lkfb/qvr ,v1)ux qs-kzt/j-v.uih *4 /r 7ntx 40 m/s after 3.0 s, when fired straight up. What average thrust force does truvk)v.fbx qlthu/ 4- rs i*/1qv,xkn-z/ j 7the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 r04jc zudp 6u4c3aa1b kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter ast0cjc udp3 rau4z a416bronaut has moved 12 m?

  A 3.0-kg object moves to the right with a spet25s.4eo ina red of 2.0 m/s. It collides in a perfectly elastic collisio 2.nt45iosr ean 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 i* f1zr-m pte/ j/5gwithe +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is therp*5ti f1e/ j-im/ zwg final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into f 5msgcw9y e..a 1.00-kg block at rest. The bullet emerges (the bulwmy es9c.5 g.flet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on b)7lovhnf-3,h9ldj oevx/tc9 y an alpha-particle (which consists of 2 protons and 2 neutrons) m9d9fo l3ec/ vt) h- l,oxnhvj7oving 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 rh1w; 01ech(fojh nk( head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of eah h 1(n1(jo 0hef;kwrcch ball immediately after the collision?

A ball of mass 400 g moving toward the east (t py0gbbh85owith a speed of 3.70 m/s collides head-on with a 200 g ball sitting at bpgh5 0(8ob ytrest. 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 c)4j wf:omyx i38nbnu3ollides head-on with a 3.0 kg mass at rest. If the collisioom fxn :3u8j)4wib y3nn is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spee9-lxp,s2y ol c i;et1kd of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. espl i-l9t2y,cx o;1k How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, str8 f;nm0t0yf:a yh o9gu5ptbk 2ikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction oto9 0:;tyyng 2p 5f8fbm0ka uhf the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical dire dr nl zkq9z-iaer)0ido)p to4;a+./pction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination movee)9ilo4dq.p0 tnz)+p da zo -akr;ri/s 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 33m)yp2,df i0edsui f-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) Wha 3) 0fdy ,im2pef3usdit is the speed of the cars after collision?

  A 1500-kg car travelingc c-r0wf)3p ug at 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 of the cars c-cuf0rgwp) 3 after collision?

  Two objects move on a level frictionless surface. Object A obb.wd1klutvs 0m8 :nv.-p.m n ;e a3wmoves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic nbap; k.:o..uvd1mn8ms etw3-l 0bw v collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North witu.la5hju z- :ph 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?u u: hl5pz.-ja (Neglect air friction.)

  A 4.00-kg mass sits at thedw:8s ,dzmsfy3:ij2h5f ry/b origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on th,:wrzmsj5 y8 2i:d/fdfyh bs3e x-axis?

  The center of mass of a two-particle system is at the origi7/1rv osf45 pgxady /pn. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is thefs/ pd5xv1 pa4/yg7ro location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kj.-4kg njb gn*5o1tj r 8x;.uh loq5iag at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of th;n8g-. qo4jjiboh* a 1unx5t5 .kjgrl e center of mass.

  Three masses, 1.0 kg, 2.ek58 sx z:4mll0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), resme l l4xkzs:58pectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0 /(s z+um6tmzz x-zkt)), and 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 sys6-tz)zksm zu(z /mt x+tem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the pos-t-*sq6c guhqition of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1. u qt-cs6-*gqh60 m tall.