What is the SI unit of momentux x/zoam y11a;m?

  When a cannon fires a cannonball, the cahq -jr3 /w1tybnnon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constantexo.bmndv 7t1ph 774r speed. The car is open on top. A large load of coal is suddenly dumped into the car. Whao1vnmd.b eptr777x 4ht happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What rohr7w4whji 0r2 o;a 2nx j/at8+kg) thappens to thwoxr 0/h4tt2k8 jgo r7w nhja2;ai+r)e velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with equfg6q:bf o(vjo( tr2h2 al speed against a wall. 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 chang 6fro22qo(f t(vjgb h:e?

  A sailboat of mass m is moving with a momentum 1 rgax yf:/fw-2 hklc+p. How would you represent its kinetic energy in terms of these tw 1/rgaky:c-xw2fhl+ fo quantities?

  If you pitch a baseball with tw:*k, 4p wanognice the kinetic energy you gave it in the previous pitch, the magnit gp o*a4wnk,n:ude of its momentum is

State Newton's second law in terms of vz( b rx8iu)9mmomentum.

State the law of conservation of momentjn.z- haxcr/1w(,x qlum.

  The area under the curve on a Force versuueo1wkwg /zj;f.s 6 x(s time (F vs. t) graph represents

  Which of the following is3o6 u;op81xc t y n4aw6detwd( an accurate statement?

  A small car meshes with a large truck in a head-ht7rb z lwtp9x3 39e*jon collision. Which of the followin tx73j9p hw*ez3r9l tbg statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) r+dyon*ws wfi u o ro0-9co475are 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 col9*4o0iu+of5o dy7-sw rc n wrolision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bowhq1 avtxghvg *ofsn3.b)g*)2ling ball. The Ping-Pong baah)ng t gqx*).bv1ohv*32gsfll bounces back to the west, and the 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. Linear mh,y9c r7eafp2/o3n ,i5w cg vlomentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collide7ge :ar8fxl 9hc.(qpa s head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement i:fr9 x.l7 qphe a8(gcas correct?

  A 100-kg football linebackd 4csimjht-x4kv(1-; mq0vhner moving at 2.0 m/s tackles head-on an 80-kg halfback runm-hj v- hskt;di xc4nq1 0v(m4ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which o( i0an30c,ap w (pxordf the following statements is true about kinetic energy?,0noaw(0dp p 3rx ac(i

  When is kinetic energa+v hs2ud/d,bp*0 cmpb w1 v0y0,ks rny conserved?

  In a game of pool, the whis+2moayx3l k/ te cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision i +xalkmy3 /os2s

  When a light beach ball rolling wiw h2 *m (v4k8/cwanjs2t zwp,zth a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed aft,(n h 8*k vsawt2w/z4j zm2pcwer the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the)7 3imoqc6c5pqo6ol j right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of th o567io jcop)6lq3cmq e golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastn)l-.* wh 0wu(kqizvb ically with an identical ball at rest. Whah(iw 0-vuw.qzb) n*klt is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-ir k 5)0vv f j3a4p,9ozq ij/wotb1/mqon with a very light object at rest. The collij10bojwtqf/)m,/ 9avipro i3k q45zvsion is elastic, 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 he d+; 8npz2unyqavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy objdq;+ 2nnz upy8ect after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with qj4/h7 kb)djf )m oif/7g2i)n /ybps na yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball q )dom7 jnfsphyjbkg)b/n 4/ ii/f)27after the collision?

  A very heavy object moving with velocity v collides head-on withl3* n ty(f2lt/k z fgror*/b7z a very light object moving with velocity -v. The collision iof /t gtz7y*/f2zllbk nr(* 3rs elastic, and there 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 wljyi,2;mv )z7x1qah u hich of the following statements is true abojuazh7l, y2;m)1 i qxvut kinetic energy?

  Two objects collide and st b( hggy:e9m8wick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It kcx) h-mf0ae ,collides in a perfectly inelastic colla x-, )ckm0ehfision 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 ob3n7 qgxzw15:ub uebrda.*.gxject and sticks. Which object experiences the larger magnitude of momentum cqb51 n*7r bx ge..uzdu:x3wa ghange?

  In a game of pool, the white cue ball hits the #9 ball and is deflected ad-pre y0 gu c0,amy53at 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 following statemenkx2n 6 0v4qomsts is false?qxo4s kn 0mv62

  Which of the following is gsl:ixf bd,qu(8 ; f7qa false statement?

  Tightrope walkers walk wt: .b4c6yodw o4hf:i kith a long flexible rod in order to

  A plane, flying horiz5e1wgu l i/.hfontally, releases a bomb, which explodes before hitting the groundh ufiwel 5.1g/. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The co,0 6k m) onisww3p6esmllision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mawkm6p 3 m6iw,noss 0)ess?

State Newton's second law for a system of particle*y ; vn/uxp1wms.

  What is the momentum of a 2000-kg truckg6 haj: .9v lnf.al-qe traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of cjnsicj; rea/mcw8)o si)9+ 0its momentum0sicjsin; jr) / 9owe c8c+)am?

  A ball of mass 0.10 kg is dropped from a heigw1t 952q 7x:nf xmhh7oa f9swhht of 12 m. Its momentum when it strikes the gro:9fn ts f57 xx2haoqhm17hww9und is

  Two identical 1500-kg cars are moving perpendieruix (:p4srslugsp s: m1:79 cular to each other. One moves with us eum9:71sp r:pr4l ixss g(: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?

  A handball of mass 0.10 kg, traveling horizontally at 302dt wp04mpc z: m/s, strikes a wall and rebounds at 24 m/s. What is z0:mpdtw 42c pthe change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of hy )prq dpzlu(f232/l12 m/s, is struck by a racket causin)/2y2(ldlz q rpp3fhug it to rebound in the opposite 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) is placed on a frozen pond. Th n4 5tx97jx1,w wwapqhe machine fires a 0.40-kg baseball with a sx5 wqaw h,71 9jtxpnw4peed 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-walkintcf8xo,wkgom0f,i de7jj6 m 29dk):cg 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 awae 0, ox2fwcd9dic, kj)j8kom:tfm g67y from the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgmd5) . q+tlo 0xl1k j-z8zbifkl/s approaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. Whql5.-ilk +ozljz)1 dfkxb08t at is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mas*bq8nn 2e r;od(fd8 pzs), who is standing still, with open arms. d*q8o8rb fe 2n;nz(pd As you collide, while 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 spmesmk8vep d /)krc5 -5eed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the5)dr8kmvps-mk5c e /e collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stesz9ezjl,bz/,b +(o u 2asa(sopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after , (bseo+ az(e9 lazzss2/jb,u the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level track a,d 68mmr6.w* lz5wuzsga y6e 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 the speed of the two cars after cgaluawmz5 ,.6mdrz w6y s8*e 6oupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal t9 txpr5v)2xgehn79y orack with a speed 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 tx ge oy2957 rv9hn)pxthis happens?

  A 60-kg person walks on a 100-kg log at j.j.6/o 7e0rgr8 l6f*m* u saig cykdothe rate of 0.80 m/s (with respect to the l.ki*jyaf 6me.csl86d/g0urrgjo7 *o og). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s oty 2,5b, 6:yfgltcvx gn an object. The force suddenly increases to 15 N and agy:g6 ,b5tlc ,2xvytf cts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts forq)aay o *7dzp3 2.0 s on a 6.0-kg object. What is the object's change of yap7d z)*3aq ovelocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wfdnn4-ytm 3)with a brick wall and comes to rest in 0.20 s. What is the average force tt -n3n)fdy wm4he car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back le(xx* ax -r7wmyv irg):pn f) +,/vnesj1r3z along the same path, and at the same snzrmrv)17aiv3pe x(l yg+n-, r*xe:sx/ jwf )peed. 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 dropped onto a table top. The swu u;w;3bc:tzoaa cy ma)f21 2peeds of the ball 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 magnitude of the average force exerted on t omc 2aaazu 1;c2;fyb):uw3 wthe ball by the table top?

  A machine gun, of mass 35.0 kg( bne5zd7k1sb-cul, vh1-px j (c ux/i, 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 for5cxxp-u11 ud-i,( ebzvchk7(bsjnl/ ce exerted on the machine gun mount?

  A fire hose is turned on the door of a bui2h ou8 ytx 1iy1ty1l4rning 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 needed, assuming yilyx21to81t yi1h u4 the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 be46kcukjl.zbt 1)b ;kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the groun6bk;tu4zbbje 1 ) lc.kd?

  A toy rocket, of mass 0.12 kg, achieves a v g9p,91(jswdxe c 0 x8dzsgr2relocity of 40 m/s after 3.0 s, when fired straight up. Wh(egdz9rcwsj1x r 2g,p 09xsd 8at average thrust force does the rocket engine exert?

  Two astronauts, of masses 6,sv5: o9rk2f:btt rzn0 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after ths2k5:rvzt :,nt fbor 9e lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rigb9 2zu+i /viq 3jwcelg e 2o::vtm59cfht with a speed of 2.0 m/s. It collides in a perfectly elastic collision uqc:92v/ilem gvwe9j+o:2 bif c5t3z 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 * py2p,u:4v+j,-4ydfo/8igo vq :vewwwlcc xthe +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the fina ,ew g/:vp8y*4 ux2wycpjf io:+c-dq ,v4owvl l velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired o (.yn y+sp(vyed7rw/ into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the bl nrsp7yd+( .wyoe /v(yock) 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 by an alpha-particle (which cons-8 be0ej.ete gists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely e8get.-bje0 ee lastic, 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 head-on with a stationary ball of n-b7yl3njnd zu9;re:mass 100 g. The collzrb;d y7lneu9: n- nj3ision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides hap 3+bnlq / -egwnk,l.ead-on with a 200 g bal3+n n,l/g- eqplw .akbl sitting 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 witp-g7vneaw- c4q (fp6 th a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectge6a4pnc wp--(tf q v7ly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spe fe -0h-zcbo wgp6a,7ged of 4.0 m/s collides head-on in a perfectly inelastic collision with a sta,b-o e wa0c pfzghg67-tionary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a park drn7km 9vh7jk7 5)c)l96 wioeupqxu 6ed station wagon, who's mass is 2m. Tr k6k7vumldo qx79p j iu)7c56n weh)9he bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213qt/ fr4yl3 z1dqgg9a/ m/s in a vertical direction buries itself in a 2.4-kg blocr1/g 9lqd fq3g/t ay4zk of wood 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 collides with a 3000-kg ct6myh pxl1evtm (k+j5 0:clu8ar traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collimc( lukmh:pj+16t 85l yx t0evsion?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car trave+y4m iduj.e6ojdmpiy1 z :+5gling at 60.0 km/h south. The two cars stick together after the collision. (Seee +.5+1m:zjjd6p 4 y odiumygi Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a ky5;8u5i/:/pfn)n p es0qx/;ff msc v 9ckvhflevel 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 magnit9mfk/ ;f n ps vfy/5ec;)n u/sh580qix:fkvpcude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, i g45 bucyga1nt9 2sd0ss 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 east with a speed of 10 m/s; and a third fragment with a mass of ut ds12gsc50gy4bn9a 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origi 20j8idd1 /x2jeloqwkn, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of maso 8eikjq21lw/ x0jdd2s on the x-axis?

  The center of mass og7yrqe oo: i)4*hdz( af a two-particle system is at the origin. One particle is located at (3.0 m, 0) and has a mass zygai7h 4or* (: do)eqof 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 (p 7gwr h(x46q /*tnaca0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the a t* c7(r xgqh6a/nwp4coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are le:gby.q *6ddi;kx*u6af)lql. i 2 pffocated at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is t2;f d *lpe .fk :u6)qbdl*f6xa.i gyqihe location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and -5:t/lur.6 q zwajlf x 91ahj)wa 4xmqa 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 system of three massh-. q w j9axlzlma5:4ra x6 wftqj1/)ues being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg includinghf-7o 5xhd o:(r ff o,k5eh3 bh,w7hhm the foot when the leg is stretched straight out,orfobh,x k5o7hehd 5 :h-7m(f3whfh. Assume the person is 1.60 m tall.