What is the SI unit o0 hx2 v:ksg( wgq mx-sb)(s cf1wyfzvg7a*7c.f momentum?

  When a cannon fires a cg6im*/r9ijh e annonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track 2(;. chz ewayd:m v-dhyy3 0qpvr-+dx at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happenr z:xp-vyh0h- wydv+qy dda3(e c2 m;.s to the velocity of the car?

  A child falls sideways off a sled whd:l4noga5 oj1o*9 mid ile sledding on frictionless ice. What happens to the velocity of g5 a*noi4d1ol:do9mj the sled?

  A rubber ball and a lump of putty have equal mass. They are throwng+o ;cz0kga950gb ;w wmyt9z y :l(dmz with equal 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 chan+ om ;(at;9cgmlk dg y:w9z 0w0b5zgyzge?

  A sailboat of mass m is moving with a momentum p. How wouldu+v,0 x wydsc, you represent its kinetiy vus,d,w 0xc+c energy in terms of these two quantities?

  If you pitch a baseball with twice the kin47vv ; ; rcbwpz7xzhg6etic energy you gave it in the previous pitch, the magnitude of itpx7vhv ; w4gzzrcb; 67s momentum is

State Newton's second law iw mxhf-:-a m8fw9dj8g n terms of momentum.

State the law of conservation of momenxw+nzq, t:n m/i )yvij z5m/ )qbx.h0/,ly kvntum.

  The area under the curve on a Force versc3c pr,bm tejs x-x0-zkh9z:/ us time (F vs. t) graph represents

  Which of the following is an accurate sy gx+ ot.)o,lutatement?

  A small car meshes with a large truck in a head-on collision. Whia- a ry*0*rhuech of the following statements concerning the magnitude of the avhuayae r*0-r* erage collision force is correct?

  Two equal mass balls wp+n tyi,0q 2xi:98du8r korw (one red and 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 i2rx 8w+9und wqki8y rp,o: t0the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides wit,k1 (t+ln8 mnrcxn psl tl5,g3h a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which objegsnx lnt (1k8rl,np5 lm+3t,cct experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each rl vzw;tz p7340*yeb qpemo54other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on vfwi1,j:ugu 2with a 6.0-kg object moving to the left at 2.0 m/s. Which statem2iujfu1 g,v: went is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kgeec7- 3hwj rfl,l,+e g halfback+,lec eeh-37g ,j rlwf running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if theudsn.pd;knx, r 1 x8/m momentum is conserved, then which of the following statemek. /px8rsuxnm1 d; nd,nts is true about kinetic energy?

  When is kinetic energy i s2mfpw,+9dyg9*c +fds7stqconserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 wpsk(a j,kedjp.e v//* 0 gt)zball moves away with the same velocity as the cue ball had ojevzk,( 0 ke.pd/g/pj) awt *sriginally. The type of collision is

  When a light beach ball rolling with a speed of 6 r/ejbr f7:l)i.0 m/s collides with a heavy exer el7 frrjb:i/)cise 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 collisi-vse0-4gl(m ccjlp3 1sqf 2urjm6 vd*on with a stationary bowling ball g*ldc-fel r-4(13p2mvqju 0c sm6j s vin 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 . 2n ck;7ek al6e0sxamcollides head-on elastically with an identical ball at rest. What is the speed of the initially saaesex nl62 ;m0k7c.ktopped ball after the collision?

  A very heavy object moving with sps /*m,sww yx-veed v collides head-on with a very light object at-*/vmws,wsx y rest. The collision 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 ho4rt mcwu5bu-t8;f;e ead-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The te 584co-tf ;wbur;mu speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on wit;xcp nv.1 h4tvh a yellow ball of equal mass m1.p; c hxv4tvnoving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with veloci4+ne t8q;ag o anfq-n.ty v collides head-on with a very light object moving with velocity -v. The;gnf n8o .e-nq+q aat4 collision is 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 momentte6*m94dzbd pbckt :-um is conserved, then which of the following statements is true btkem69c*-tz d dp:b 4about kinetic energy?

  Two objects collide awx0lucw ,f u)9x3b: hznd stick together. Kinetic energy

  A 3.0-kg object moves to the right w.6;wr qyt6:v i-rxns,q gq 5uat 4.0 m/s. It collides in a perfectly inelastic collision w r.rvg-6:q wu6qx ;yisq5,wt nith 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 objk9co3u w7du8 2k7whrwect experiences thewh 72ok w u8dw973uckr larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is defleci(jnml )l,z oge5h mex 4sf-x4j:(9cvq zkr.0ted 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 follb k0c4)dtnxly4 wk.,iowing statements is false?wx04 b)lk id,tn.4kyc

  Which of the following is az,kb+rylp,yflquj0 +,v(y 8o false statement?

  Tightrope walkers walk with a long flexible rod in 9*x/ lbm ( pltay r-0*lhd0zeqorder to

  A plane, flying horizontally, releases a bomb, which explode,bpf0d 7o3mrjmbx1czg966 sa,md x/qs before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the ex7op39x, xq/6bm1c0ga mdm 6, zfjsdbrplosion

  Two cars collide heakw75y ur7yq0kd-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest du57 y0r kwk7quyring the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of part;lgic j uu7jd;i8a)zq:6l8 knicles.

  What is the momentum of a 2000-kg truck travelihaae + um(.xy3ng at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. t1:l3jhfg6 le What is the magnitude of its momentum h6e1tg ljl3f:?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its m9/fq cy:i p0cubn8v0 xomentum when it strikes the groun:nvcu/ ixy09qf 80cbpd is

  Two identical 1500-kg cars are moving perpendicular to each other. Oneybx-ol*(gd+zjffc7k ik k y(4q.g7pl m)2 9fj moves with a speed of 25 7m72yo4zql)-(xp jgy .(9f f d*bkklfgjick + 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 horiz gmo)fx .ko+gv3 hs0g2ontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in o g s+v32xog.fk0)g mhthe momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of ,.-1ey loey fn12 m/s, is struck by a racket caoly.y ee,1 nf-using 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) ss)3mw1 kfkwc-9hoy-is placed on a frozen pond. The machine fires a 0.40-kg baseball wy-ckmhs f1sk9)o w3-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 is stationary zmprvh75m9j y59* w 1plzz)bxwhen 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 the capsule. At what speed does the astro71bpxjl9mmvwh95 5p*z zr)yz naut move toward the capsule?

  A small object with momentum 5.0 kgm/s appro4 if5)+7fez n-:yq-z mtklosa aches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large objf sq)e5tao-zfnkz:+- y7ml4iect's momentum change?

  You (50-kg mass) skate 8ok ptr9+ *l;+wicgdh75 gbbk on ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, wtk9gwdo5 p;gbc8 + h7+ir*lbk ith open arms. 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 spee21( q5iar x1ogw+0v 4mtbveqh q6mag6d of 6.0 m/s. It collides directly with a stopped motorcycle of mass 1ate5 ix0q6(wm va2+ov1 6 gqgh4rb mq200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of fw),t6r*;vq4w : rzi/h it 2jkty *qvha stopped car that has a mass oz2 i* htk,/v:yww *q ;6fr jrq4t)hivtf 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, masus.fj1 3mjksej/i73l s 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 br j3i.k sj7mf s1j3lue/akes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 20 *7ed/z67cbpjn rfyic 2t6 dq)0 kg, rolls with negligible friction on a horizontal track with a speed of 10 miredq67td jn72zf)cyp *b 6 c//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 a3 q ox2 ih1 mmek*djcrb5)fo59 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respeqkif 5 o c29erbx)ojmm3*h1d5ct to the shore?

  A 4.0-N force acts for 3.0 s on a oinit4k, nn+/xd1-p dn object. The force suddenly increases to 15 N a 4d 1pn+in-,t/d onkxind acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 pui*21e6ehr dcngn- ,s on a 6.0-kg object. What is the objecdci6r,ueg2-1 p*enh nt's change of velocity?

  A 2000-kg car, traveling to the right at 30 s9 l1hua,lqd*m/s, collides with a brick wall and comes to rest in 0.20 s. 1a9 *qd luhsl, What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 mi u./ho*egf7f8 dkymo 3*at3z /s. You hit the ball back along the same path, and at the same speed. If the bat was in con3f khet *a.*3z m7odf/uo8y igtact 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. Thjhvyw14 o u--ppl*.lyy n 0vp8e speeds of the ball right before and right after hittiny plpp.--1luwy0o yv8* nvhj4g 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 the ball by the table top?

  A machine gun, of mass 350o2xv rrpfuwf(xqf28 qb;vz 0 v0.z2;d2 vftb.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750;fd02tvfvu0 p;(oqrzq xfv .vf 8x2 rz02b2bw 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 i 76szdrfc;2l5iimp1;2a0ua o8rf l j nn order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 1crlafsi;l2z;oijr56702pf 8m u adnkg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a hori9; /by;sxe vdzm fml;(zontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuminl /vb dx ez;y;m;f(9msg the 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 o/ x c,ts*cps7/kwvpr(xflr ox,2h( q, f 40 m/s after 3.0 s, when fired straight up. What average thrust fopk xhxt /c7*,ssf(,qvxr 2plw, /r(ocrce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are inite g0m )q6eqc)jially at rest in outer space. They push60j)c m qqe)ge 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 speed oaidmd5 jk82zzf86k5u f 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What fjk u6 az8i5 zdd82km5is the total kinetic energy after the collision?

  A 0.10-kg object with d2. -ejeb k 1o)yery;wl9-omaa velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 - oomkr) ;.e-2d1yjb lyea9ew kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The bu*n5 hsrz(d +2c cn xbk-kvtx((llet emerges (the bullet does not get em tnh*(5b rsx 2d(kv(x +ccnz-kbedded 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 by an alpha-particle (which .2q esj7e41 y2rsgil;de ai7i consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alp7 sy1gr d l2.e4eiji27 i;saqeha-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 ame7:mz/ pxv+z c2i 4ymass 100 g. The collision is elastic. What is the speed of each ball imm4 /+zyi:7zve mcpamx2ediately after the collision?

A ball of mass 400 g .9lhbxbwkm 1c c2.yi *moving toward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elas m9hwic2b.cbxl*.y k1 tic.
(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 o.g,c) k ,awuxef 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is ) w k,ugxace,.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 head-on v.d .emj4dwqloemkrn; r3;)+ in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energ.;wdrjo vkdn4q m. re;3el)+my is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wcx;1h*-+wvmo6ivk*o c8gf ad; nr qe:agon, 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 this collisi18xkoam-ce o;6frv+cwv* di* hgnq:; on?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a *f3gw hm-cg 3 +grvb-f2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verticc-*fmg- bvg3hrf+g3 wally 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 colli +m/ (z0 7m8ewvwrpiakdes 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 speed o07m wpzrmai e(w+ 8/kvf the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with p0t.bez br)xf6 zu6, pa 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 0x p,uberptf. 6z)b6z7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Ob3(w q b)pmvqi/ject A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a pqm) (iv3/qwbperfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 t,co 0.khwwef-ls-9)hqr g )vkg, is moving toward the North with a velocity of 4.0 m/s. It explodes into thrc. l-wg eqk )wsrv-09t)ho,hf ee 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? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = +rck(9 30zb-ew20 0 v- nqwzr q68romnlt8im gl 21.0 m. Where is the center of mass on the mm -0 w06(b9lnrv3k g n2qc08i-rqwr zzolt8ex-axis?

  The center of mass of a two-particle sys0i jttehp, 3 vzn.9-skdtl0 ,ptem is at the origin. One particle is located at (3.0 m, 0)dtztv0 3 shp0-,e.jkti,p9 ln 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.rvh9hbm* 9ef3 aq/lk; 0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the c 9kfrl9bq;/ea*3 mvhhoordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate.e+ eqxe01qy i1, gpihd at (0, 0), (1.0 m, 1.0 m), and (2y0,qh1e q gx1e ei.+pi.0 m, -2.0 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 po yzje+hs2r u::(kb/ussitioned at (12, 0). What are the coordinates of a b2:yk(:she/+z suj ur 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 f n16id cq;cg(kn0 b:efoot when the leg is stretcheid1fn6gn;cq(k cb :e 0d straight out. Assume the person is 1.60 m tall.