What is the SI unit 8 vmw(w512-izornwo i* tosm xs3l-k)3aw3veof momentum?

  When a cannon fires a cannonball, the cannon will recoil backward bvo5*2gmut8 x lb -yruryq75 s5ecause the

  A freight car moves along a frictionless level railroad track at constav)kc (c4pfm) wnt speed. The car is open on top. A large load of coal is suddenly dumped intc p vfc))(mk4wo the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless 1 87o me:wcc;cf,fj syice. What happens to the velocity of t7e y:; scc8 fom1c,fjwhe sled?

  A rubber ball and a lump of putty have equal mass. They are te .wu4c(5 ajk xt.rxidbj/)vd / p1(hlhrown with equal speed against a wall. The ball bounces back wix4. chdj/ubta)ejxp. ( d/vr ( 1ki5wlth 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 movcmcz64 e;;ca ying with a momentum p. How would you represent its kinetic energy in terms of these two quantitim4 cc;;6yec zaes?

  If you pitch a baseball with twice the kinetic energy you lj8p.+do-d mt gave it in the previous pitch, the magnitude of its 8ddotpj-lm+ . momentum is

State Newton's second law ;xe.3eol a:7( pmnjvuin terms of momentum.

State the law of conservation of 3)6hbu ile b 84 ky9*aapdfkl8momentum.

  The area under the curve on a Force versus time (F vs1,g+z-ae0fvtsrhp7n . t) graph represents

  Which of the following is an accurate statement. vea,ydtx8 u+?

  A small car meshes with a large truck in a head-on collision. Which of the frl 71payjwkxva 88 5acugd; -/ollowing statements concerning the magnitude of the average collision force is c1gpa dwyal;/r8v7ju5kx c8- a orrect?

  Two equal mass balls (one red and theqn,++pw: x ra8mpt, dr 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 wirtm+p+ x,p8 :wd,arqn th the floor?

  A Ping-Pong ball moving east at zote)* amvn-2a 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 m 2oet)v* -znaobject experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linea:6 zmf h kd .2hy6j2u:gk)fkfhr momentum

  A 3.0-kg object moves to the righ: (vgys/uh9rv3qta; dt 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 q /v:3arty9;vudg(sh statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg (sc 2 ebk9/ cjl io v-)j0w-:iol6otbzhalfback 6b -( jji/-ctwlb2o9 )ocso :vkzi0elrunning
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 fzq73xmw7zr7o65x iqsy5 a c) tollowing statements is true3x )ytrxz65izo7 7 sm c5qwq7a about kinetic energy?

  When is kinetic eneri-* h-sibucv/gy conserved?

  In a game of pool, the white cue ball hits the #5 ball andv69g4f nymkdy+js3 +nzk s )ev5.cn a) stops, while the #5 bg3s c)vzs ) n45m.evfayknky j 6+9d+nall moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s col frz*zw: w26 h/-bi 3y pe/gb+rsa;viplides with a heavy exercise ball at rest, wp/wpzzg;hi36 /+2:i*bry efsv ar b- the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rt5 k/cucm)nud*ors 8/o4nonk1u 4n.jight collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastinu1okt45uc 48o*dojcnk// mn s un r).c, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastcqxy1qcz//l v ;0s8 /x1j jxbvically with an identical ball at rest. What is the speed of the initially stopped ball after the collision?xvs1 jblyc ;//qzxjqv/c 081x

  A very heavy object moving with speed v collides head-on with a very light objs8.baafg4a+e ect at 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?ea8fg s.ba+4 a

  A very light object moving with speed v collides head-p/pz): jq ylhgu1/p8 ion with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elas/i ypjpg/ qz)hul:1p8tic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3quu7j jg/7r).s kfc)e0 +czr q.0 m/s collides 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 after the r +c)gr )jjq7csf z.euu0kq /7collision?

  A very heavy object moving with velocity v collides head-on with ohc l ln7zqo5*g,,1r;mkb,dwa 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 the light object o7hdbg; 1nr,wzm, * 5klo,lqcafter the collision?

  In an inelastic collision, if the momentum is conserved, tr60z)rfqdn,x7k;kbem ; hr6 dhen which of the following statem;b k0z rme6dxhkdn6 ,qf);r7rents is true about kinetic energy?

  Two objects collide and stick 6-lz6 bz db;shtogether. Kinetic energy

  A 3.0-kg object moves to bkv.ves*b)b/ the right at 4.0 m/s. It collides in a perfectly inelastic collisib.e b* kvv/sb)on 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 anp/ f ut1 -toko88mo-m1ljl:j hd sticks. Which object experiences the larger magniu/f:1m8 jot-jl -1p t hmlook8tude of momentum change?

  In a game of pool, tjv)e 5w 9jr9hj tx /x5kv6dod3he white cue ball hits the #9 ball 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 masses, M and m. Which of the following 9,*qecq/9vbc(a v ovbstatements is falsv9(vo qqc,/*9a eb vbce?

  Which of the following iew-dt l44)kv0o6zsp6fs uvkoqt4 0 *ls a false statement?

  Tightrope walkers walk with an7sdg)8dez+ :+ ezgrk long flexible rod in order to

  A plane, flying horizontally, releases a wwd)xz67f0cgbomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmentw0)fcz6 w 7gdxs, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was comple3tcp+ pawph (cax4ev dt.11k1tely inelastic and both cars quickly came to rest during the collision. Wka t v4th31.cc1dp+p(w epx1 ahat is true about the velocity of this system's center of mass?

State Newton's second law for a system ofv(r: *vxoeu6 azy/cf/f2ng .x particles.

  What is the momentum of a axk*4b hpwiu2q)u+7f o f lj4+2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of ij7lilv- 0jlby 9 hbsm,74tdl)ts momentum?l d7tm0hb7b-ly9l,vj lsj)4 i

  A ball of mass 0.10 kg is dropped from a heigw-9lug2rt f*czz*dw 2 ht of 12 m. Its momentum when it strikes t uzfcgrt9 *d*w-2z w2lhe ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One mz3em6 w9fe1 cmoves with a speed of 25 m/sf6 3w1 9cmzeme 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 horizonta9 un kkk*g()xwlly at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in k*xkgunw( )9 kthe momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, .6vtmjt 3r5g)eed kh) is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. Whv t53 grjetkhd)6 me).at is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the base1iap2yxfdpd as+c: 15 ball) is placed on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the hosfp2id+p1 x :yadc a51rizontal direction. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walkimgy /k v2/g gfqpj8;p0ng 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 p gy0/k2 jgfv8q/ gm;paway 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 largeyj) 31)li-bz ruc r7vp7e-grm object at rest. The small object bounces jr- b71el3vi rzr )u-p m)gcy7straight 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/s to greet your friend (4k0tu.6/z ) eaigk-wh4uu/nh k 0-kg mass), who is standing still, with open arms. As you collide, wu-h./e/ kuzw k6h)gin tu04kahile holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves kcnb6ceh40+ tjht:nn-to y( ,to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the -(t6by+ec 4nj ,t0hh knoct n:total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that has/xi cgq mhr* glf+f3a1 .d5u)q a mass of 15ffg gr+qdchua31 mx./5)q i *l00 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allo v u7x :x4iaq+ol5bs*uwed to coast along a level track at vu:4*si l+ bx7uaxoq 5a 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 coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizontjc )atiu84 w9gxi-9cm ;fhxl5 al track with a speed of 10 m/s. A 70-kg stunt man drops straight dowxc gc)wifi 54txa9j-9 8hmul;n 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 walkswi+1ro( l- hax on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does thex+o(r iw1la- h log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15s+0 w b3bziba* N and acts for one more second. What impulse was imparted by t0wb+a bsbi*z 3hese forces to the object?

  A constant 9.0-N net force acts for 2.0 s on emjk6 /nytks) a9 p(m)a 6.0-kg object. What is the object's ce/nmjk)69 p)s ytka m(hange of velocity?

  A 2000-kg car, traveling to thezw;dv (310gv s2 dhcm oa*vr8wu5vi *g right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average *0v w5auzgdg12;v( w*o rc 8h3sdv mviforce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hitj7 cfqc zx u7f4j+kgzx hvews12u;(79 the ball back along the same path, and at the same speed. If the bat was in contact with the jzu+gxh1;72xwej9fc vf4k u qcz(s 77ball 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. 4ayd0 e,wi jtj-u)fymf+78cjThe speeds 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 tabuyc0t)-7jefam fj ji, yd84w +le 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 bullets, wit)1 p2mndw1glh pii1, th a muzzle velocity of 750 m/s, at the rate of 31d1 nilt1 hmp,w2 gip)00 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the doo vt3isfa, ag/s ;4ys7 r(jh,ylr of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40(gsy, 4aas/3vfis,jl; y hr7t 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 mincz1rftz3ifeyy,jxni9k+d- ,;4eze 1ute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the gr1ekir c1x ty z9d fz;n+-z,y3e ji,4efound?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3 zfxbasjw4; 814n x; 8mw(pczq0whmkjbw8b;0.0 s, when fired straight up. What average8wbwkqc n x abm;ws4z1jp8x4m8w z0;b;(jf0 h thrust force does the rocket engine exert?

  Two astronauts, of ma ovq:tsry4,uu51gx0i y 7pv )gsses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lightevu 1t r0gs4uopqiyx y:57 g)v,r astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collidyd;*lc:d / lcww+jbs /es in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collwd /:j*l +c lb/y;cdswision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hee-94z pbkh-ugi7e5g pad-on elastic collision with a 0.15 kg object inb g4e7 pp9iuh-ekz 5-gitially 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 bughecepbzfn8a *2k j 4db7l2 :*llet emerges (the bullet does not d*ehjfa : 4c8pl7bk*22z nbeg 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, atvy,yfr cyr7p1z 1.( rv rest, 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-partizpc7yr,(frv 1.yry 1v cle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving nns lmr691rw/ +10 m/s collides head-on with a stationary ball of mass 100 g. The collision lrm/nn19 ws6ris elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a sp,sr3s+x2l(d+oti dbp;qh kw ki7g/k5 eed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The ci (qkdgxh57k ospd /++; 2,lbswt3kri ollision 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 20dd gqpfl3d/ odmjx((9t3dl speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what isq/fjdg90tld d3(p2 x(3o dld m 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 in a pel0ors l7j0/5ev 5fju trfectly inelastic collision with a staeljr5j os7fu00 5t/ vltionary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travewahjiy f8k378uo2;p , rtlo4 oling with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on ,j l pira;8t3hk7w oyfu oo248inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling) jx6i, .7g-qrp/anfu1l7: lqz iwxtw 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest direc7/q17 j zwf, :q-witll) xpr6i .xunagtly 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 car traveladaqh+( jk9irj7r g/ 7ing at 60.0 km/h south. The two cars stick together after the collision. (See Fig haqi r+9j/ (jg7rd7ak. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car trave57vxz c1c.bd2l sny *fson:8fling 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 th:o8zf*y 7n.f2 1dc vlssncb 5xe cars after collision?

  Two objects move on a level frictionless surf2 yuijj7ets/ u9epc1, ace. 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 after the collisioj u/2ctu,79ej ispe1 yn?

  A small bomb, of mass 10 kg, is moving toward dd,mr1icf.fwd8u*u5 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 1.0 kg. What is thefi5 uwdmd,* 1fruc8 d. velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the orig cg rb3.6lvf)yf(2/sc9b fkbrin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-axis)fk9b 63b/yc (rbfv2.grscl f?

  The center of mass of a two-particle system is at the origin. Onewxjucyp.em flh kzi50u10q d(-k5j:7 particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.k i 701j-udqlj5wk0xf:cpz(umhy.e 5 0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), lcz21v5of ea,5 2 ghcxc/pc:c and 4.0 kg at (2.0, 1.0). Determine the coordinates of theeccv5/1 zcxfh,oc2g 5l2p a:c center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg,sdfc- 7fvd50tkzan:1ewfv+- are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.7dnfc+adfvt0wv -f :e1 z s-k50 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)7a)bwe-3e ) bslp5 ip.fh. tnw, 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 pb s3. 7fa5i)nh w)bew t.l-epmass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position uo6(nyzdk3 4td0bn9lof the CM of a whole leg including the foot when the leg is 3tnkdly (znb064u9do stretched straight out. Assume the person is 1.60 m tall.