What is the SI unit omo7,vvs 8veew dg 8k98u0esv:bte 88i f momentum?

  When a cannon fires a ca8x4-dibo jv9qub .8fnnnonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level rao4*4jm phhn8,z ,tk 7aqetx i4ilroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happaojxkh4te *n4 qi,87hmpt, z4ens to the velocity of the car?

  A child falls sideways offydu( oe6er4r(d0 u (nx a sled while sledding on frictionless ice. What happensn4eddxy(e6ru( 0ou (r to the velocity of the sled?

  A rubber ball and a lu3qt(nd l+txjsi9c-x b*f:p ,g mp of putty have equal mass. They are thrown with equal speed against a wall.93+s(f l-t:dnit cx*xpq,bj g 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 you represent its kk8sy;f 2hq(sx j-rld,inetic energy in terms of these t2 (fy,-dxq;r slh8jkswo quantities?

  If you pitch a baseball with twice the k5b9+fhc 8nfrwpk o. /rinetic energy you gave it in the previous pitch, the magnitude of its8+rfo.bw r 9cf/5knph momentum is

State Newton's second lawwdvi,-k 7s2)h r*7qdd8 nawiw in terms of momentum.

State the law of consepx m jn.f(*vs*rvation of momentum.

  The area under the curve on a Force verz o.8 m t x +x-mzl4k9jp72lfvbsz,kjb9g*ra; sus time (F vs. t) graph represents

  Which of the following is an accurate stv6 51nm4d8/f+x,jkq dqukj y natement?

  A small car meshes with a large truck in a hpg9-1qz ++m hnk) vpcgead-on collision. Which of the following statements conc zp-1ghvqgp9c+n m)k+ erning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are droq,l sspzo5:7r vzyta: 8+ill-pped from the same height, and rebound off the floor. The red bsl +lqts-z7 p:av8o,zl5 y:riall 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, collided:jn wh5f3ecd i;( e2os with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and thej;:odc dn2fi5 (3hew e 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. Lik58yy/ qehp,tf zb5 ;onear momentum

  A 3.0-kg object moves to the right at 4.02kr;red c4- cc m/s. It collides head-on with a 6.0-kg object m d-k2e;crcc4 roving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebackeryohz 5w- ec5u* moving at 2.0 m/s tackles head-on an 80-kg halfback run55zyeuch- w *oning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisioncd),npqn b ;ig,sn r,;, if the momentum is conserved, then which of the following statem n,g nnb);c ;ipsd,rq,ents is true about kinetic energy?

  When is kinetic energy .to9 -d7pf xutes(z4)hobw)ocn s25cconserved?

  In a game of pool, the white cthwk;,qzis )b u*k/aerk 5dd u8:qnz t+,( /hgue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the hzkqd/t8+ wuk g ,n / dsrh;i5*aq,ek)z:tu(b cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed6rj r6ufm4q- z of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball'sj-rzu6fq6r4 m speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rig+a8xx8 gqrui ;ht collides in a head-on collision with a stationary bowling ball in a friction-fr; rxqxiag u8+8ee 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 -bpd pegd+o.c *3nw5qy9 iz *dcollides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball afb-+ .pi5g dc3 nz*pwd*o d9eqyter the collision?

  A very heavy object moving with speed v ueb 8 6--) upkit q*vcprptvm,a,9yd.collides head-on with a very light object at rest. The collision is elas emuipy*d-v,kq.a86t p -rv,t9pc )u btic, 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 heavvps / 8 ymtm8gyf0,02wh, pqhny object at rest, in a fg8,0qnh/yfmv 8th y, 0p sm2wprictionless 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 wo3 wz t6tl;j. g75lzg:d .+ c6shnfnekith 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 collision? 6wzncsh76f+3ztjnge.5 l :gtok;.ld

  A very heavy object mtpb6b:s 6g bf-oving 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 b6tp-:s6b gb fdown. What is the speed of the light object after the collision?

  In an inelastic collision, if the mo+skj0 f;i)d,f mfs- wjmentum is conserved, then which of the following statements idks0)f fj;jw+s f,mi- s true about kinetic energy?

  Two objects collide and stick together.b yq ks w4 r;hsd233u0ze6si:w Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in al)sxp) qs+ j-c perfectly inelastic cls)x- +qc )jpsollision 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 object and sticks. Which object experiq r50tb6; tognp zhb,8ences the larger magnitude of p,z bnhb;t86r05 tqg omomentum change?

  In a game of pool, the white cue ball hits the #9 ball and ( g*69 ,fxcs1ehmnkgtis 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. Which of the folt-9bkn8r7p jklowing statements is false?prjn tbk 7-k98

  Which of the following is a fal0h(t.uod z1 qr2f/vai4 npfv.se statement?

  Tightrope walkers walk with a long flexib 8*qi fy-py3b.li7u)bziyw3fle rod in order to

  A plane, flying horizontally, releases a bomb, which explodeipez po.0 z6x;s b/3g r pv/t)i4y/.xthu5yuis before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after)/p iyu ihzotv5b6t i/4g ; suy0/xer.z pp3.x the explosion

  Two cars collide head-on on a level fr mz hb2tgyfls+ )h.38yiction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is truty2s3 +. zmh8glbf )yhe about the velocity of this system's center of mass?

State Newton's second law for a system 2bo.;gci h1hnd/ bhi:of particles.

  What is the momentum o;.+wnz 8d)uxk hniy/sp50w f0cj .yclf a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the mag07 jkmsii-q5dnitude of its momentum?sj5i km7iqd -0

  A ball of mass 0.10 kg isr urjy717 d7fv dropped from a height of 12 m. Its momentum when it strikes the ground iv7yu 7 r1dfr7js

  Two identical 1500-kg cars are moving perpendicz73 e-o:dnl qoular to each other. One moves with a speed of 25 m/s due north and theo:7n-ldezq3 o other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling hori mpj m/5 rfb enfpcp:-9q7h-j,zontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the , 5fr-qpmjpjn h/cm-9eb f:p7 change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is stru8z* dj,+kef hkn2kj 6g8z j.nnck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of*kz fen6 j gk8 hd2nz+,n.jkj8 the ball?

  A 50-kg pitching machine (excluding the ba3 mg*mmrm8h k(seball) is placed on a frozen pond. The machig8h(m*mmrm k 3ne 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 negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is54rrim-rq *be ;y(js l 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 thb4rm- s(iy*5rlqr;e j e capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-ony*aex.:ng x-s-+j x qb a large object at rest. The small object bounces straight back with a momentum+ ajgqex .*b-n-:xx ys of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice atb 6 da2h+ez*er 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, with what speed do you both moverab +dezh62 e* off together?

  A car of mass 1000 kg moves to the right along a level, st(q6 ef 0h (so/.q0zcpax nnof.raight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What nx.hs(o(a/cp q qefn0 6.z 0ofis the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that has j6cwa u8,:d,ql 1 d; fdd,hkxqa mass of 1500 kg and they stick together. What is the spe d,u;d,fjla81hw x6:dcqd q,ked of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to cc3h h b30yepxapp:1ui/ c8ep0oast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, initially at3y: u p31b /pex8ipacphche00 rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with x6gi74i2 c5;uvanupu negligible friction on a horizontal track with a spen2i xupca;i547 u gvu6ed 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 will the car be moving after this happens?

  A 60-kg person walks on a 100-kg lki.srd :i1;,b:ncuyqnf*i ) log at the rate of 0.80 m/s (with respect to the log). With what srk1 u )in*fb;qy lsinc.,i:d: peed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 ti rl,- rr si0j5t 3 +;ivwpklvx*aw/0s on an object. The force suddenly increases to 15 N and acts for one more second. What rwv 3iit,krt*+0 vr0lxpj-/i5 l;s waimpulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s 9-m mo8v evd u8j*oo:a b7nub/on a 6.0-kg object. What is the object's chang*m:vv9eba/o m 8j8on7ubd- uo e of velocity?

  A 2000-kg car, traveling to the c 5e.w0s :rafsofb gvt5a1;3n right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car ex.o13rffst 5sag awn05bec v;:erts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit th1 *b m56 yon6wdp pyjd0qme;4ge ball back along the same path, and at the same spepd*mynb15w opj6g0; e6qdy4med. If the bat 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 dro6 93 tp-cr(y-c*/ixd( 4pxegvw ndv zdpped onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s anddp3-e( xzixd/ nw 94-gct yprd*6vc(v 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, fic1s .1l(n ekieres 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 exertese.1 ic l1(kend on the machine gun mount?

  A fire hose is turned on thel- j*w)f 62exu(tj8csaehxp : 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, whatexex:cj l(s 6-8jaftpw2 u) *h is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal;)8asu j)vwk 55 nf ul7nfox4d drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what averaj)x)7uow5 u;ff8ln s va4dkn5ge force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 44prtr-o bk0wqznaiv l m/tt : 5onfw89n/v--(0 m/s after 3.0 s, when fired straight up. What average thrust f5/ritm qv0kowtp8 znb 4nra-w/-nt 9f(- v l:oorce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer space. zq,seg1)o*1) vx 4xfj0g szrq 1o,xszsxg 1*ez0v)4g )qjrf q They push 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 oec*/ f(4b hpyspeed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the lb4 ch(fp*/yoe eft at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0,dpxzl8 in1k6; t ok+m.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. p til dmkn,8z+o;61xkWhat is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/lj7w7wd+xg t7r.w stsn8 *3 ygs 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 original speed. What is the velocity of t d8ls7gw7yg*tt3wrn .7+ wsjxhe block right after the collision?

  A proton, of mass m, at a0)d2rrdcj :3 2titcj25. ss4 evmstwrest, is struck 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 after thet2.cj0csvde :ds23 )rirmatw s t25j4 collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-(tk lf6tm0j -con with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immedia-t0(m6 flkjct tely after the collision?

A ball of mass 400 g moving toward the ejodo pakbo90 /-7 fqs5ast with a speed of 3.70 m/s collides head-on with a 200 g ball sitp 7dajq 9o5ks o0fob/-ting at rest. 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 hea w*3c z,yn3e 1n c,:*nvbpvmptd-on with a 3.0 kg maz3c,vpmb*cv3en:,n 1w*t p yn ss 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 at a speed of 4.0 m/s collides headmi t3w-vk+l.ld( j 6jk-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?+mldki (jv w.6 3lt-kj

  A car of mass m, traveling with a velocity v, strikes a park9cc+zmj/jt3 bn.h5 e hed station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fractm j3ccjze.t+h5 bn/h 9ion of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical directsjws2yapj+(8 bvp zd --f 3cj3ion buries itself in a 2.4-kg block of wood3z-2d3(ap+jjp ysf jb8swc v- a rest directly above it. As a result, 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 p*-p9hjfs g), m tt)4gdbb)k/mi - xdtcollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) W-gi)tmdp9sgh)*)4kp fxm b- j/t,d t bhat is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-sk1 3c2hm4 tsckg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) W s3ht c4ms12ckhat is the direction of motion of the cars after collision?

  Two objects move on a level,a smc hq6u i0d854tio frictionless surface. Object 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 momentum ai 8hdi6 sq4,au cotm05fter the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocityuh6dm xk .ka q93ynlj9fw (0j; 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 wwyf 6kn md.j;jxa9q ulk0(93h ith 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 ats eg 0 mm-q*bg*akl44g y msz(fr12rx) the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center - frgs1xml4g)4*(*0say z rbek gmq2 mof mass on the x-axis?

  The center of mass of a two-parti,.fnu egoyz) 0 d1muolje,,6icle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the looy .,l, nuefejigzmu,1 d6o0) cation 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), a;nngm)r x5do z/dx4o7 2a /tnhnd x;gd4d/) nm n oor/tz2 x5an7h4.0 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 locafd6t .fc6 wjv8ted at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectivelv66fdc jwt8 .fy. 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 pos4 g-j kkv-wnb4.psb,u;y nwb6 itioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of thewkw-pbbkn,- 4 jub;s .6nvyg4 system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position oiy * l3p9lm:mxf the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m timp :x*l 9lm3yall.