What is the SI unit of momentub 1a4eihtad5 uh0q1y1m?

  When a cannon fires a cannonball, the cannon will recoil backward beclj3ir3e,m1 t8sj*u blause the

  A freight car moves along a frictionless level railroad tr j:ozh,*24rref6 cwli( ih kz-s;jtb1 ack at constant speed.(jc t2rw:se-4 1rk hf6i,olbizhj*z ; The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictid;b:ot m b4t+nmbr95 konless ice. What happens to the veloci+rdbkm;mo 5 bt94n:b tty of the sled?

  A rubber ball and a lump of putty have equal mass. They tv66)pmc7 /vpotcaa+h r k-r+ are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The put cva++ )-htkr7 pcrm6ta6 ovp/ty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass muf+gw u89o:eh is moving with a momentum p. How would you represent its kinetic energy in term :hewf9ugu8+os of these two quantities?

  If you pitch a baseball wit4k+lz uvqb7;xla +x*rh twice the kinetic energy you gave it in the previous+luv ;x4rab *x+z7lkq pitch, the magnitude of its momentum is

State Newton's second law in tlv6h 5ewyg+5 aerms of momentum.

State the law of conservation of momentum.ac7qzp ese )3*

  The area under the curvehf kk;dc1zb ,0 on a Force versus time (F vs. t) graph represents

  Which of the followil y*bgrqb;3w i3tk01nng is an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the ughzd+r 9fa; *8yjar1following statements concerna8ra z*gfhju;d1y 9 +ring the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same hng8s9)rj 4mgfeighf9 84sg gn)rjmt, 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 the floor?

  A Ping-Pong ball moving east at a speed9kwv9g* lc yfdhf7;z1 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 slow*fyzk w ;9ldh17g 9fvcly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bouncemflk8 83(coegsuu d1w0 cjf74 off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-onb 23mc -p23a1sf;vk*yu 3rqw/gyem5asw7n cq with a 6.0-kg object moving to the left at 2.0 m/s. maqp3km1yq cy5c 2/frnw3gv-a3 * 2u7;bsew s Which statement is correct?

  A 100-kg football lineba d pq udpo7-4vor;j:b4cker moving at 2.0 m/s tackles head-on an 80-kg halfback rduoo744v-q j ;:d ppbrunning
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 hqix3kni+y0o mc15 t)the following statements is true aboumi5x03o+kchqn1 ty )it kinetic energy?

  When is kinetic energy c:*n9abv/3r9 nubd tkt i2hb 3donserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while tf*rwpd lrzz, q3 foe(c6x*3 )ahe #5 ball moves away with the same velocity as the cue ball had originally. The type of collisio 33zwqc *rz, p)ldfr*6 f(oexan is

  When a light beach ball rolling with a speed of 6.0 m/s colliderm7y2/xdu*z cs with a heavy exercise ball at rest, the beach ball's speed aftec/ux2mz 7*yrdr the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a heads44s6f uh- u4*n1ijhw:deq-gw6 k epm-on collision with a stationary bownsegd6 1mhe-q uf*6w-:jh iwu444 kps ling ball in 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 s, rsil 3 gsr6w4iid0.upeed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped,d4 s6 w3rrgsul ii.0i ball after the collision?

  A very heavy object moving with speed tddh7w21iul7rk3 +d3k 1q mfk v collides head-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 sper kmq11 lwddt37k+3 7ud2ihkfed of the light object after the collision?

  A very light object moving with speed v collides head-on with a very heavy ob/ kgvy11vsd3a+ dtzr/8:c dn whc2n 1tject at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the 1 v /n231rtvnh1:ddz ytd/8wg k csac+collision is

  A red ball with a velocity of +3.0 qhr 3tp/+v /;ptht (t(asod.am/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. Wh rhso/qd(t(pt pah;. t/av3+ tat is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocit.qscja-6y j7c /hd4/x-cz hd;upcf45 uzanj ,y 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 the light object afn.j64axzjcy; uc apf4z7u5hd c /cj-sd/q, -hter the collision?

  In an inelastic collision, 8,*hf go3+evac+ukhl if the momentum is conserved, then which of the following statements oc*gaehk8 uf,+h3 v+lis true about kinetic energy?

  Two objects collide and stick togq x)om;sz27 vuether. Kinetic energy

  A 3.0-kg object moves to the rig0c n1q tfw3,jaht at 4.0 m/s. It collides in a perfectly inelastic coltafj 1n, 0cw3qlision 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 e c8:iuo )iqsqanw:bmco2 k2 3tj3c0) gxperiences the larger mago jq8c0)2 b:w nic3gm2iq:3tauok ) scnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at prdu:c64 1: : wjsn u+k sqz+t,x3zzraa $35^{\circ}$ 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 j(b7l*a)wuj kue,1.rx yb .jqm. Which of the following statements is falsb*jb 7kyux.ae u1jlq.rjw, ()e?

  Which of the following is1eq3rt)fgy97 gd g5d r a false statement?

  Tightrope walkers walk with a long flexible r w)tl*s;(pf1e qoiru. od in order to

  A plane, flying horizdqauc56w y)(e ontally, releases a bomb, which explodes before hitting the ground. Neglecting air ree)(acqyw6 5u dsistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The s ,ul,r(as:6vi (wwbpcollision 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 masiw ,:a(6l u ps(srwbv,s?

State Newton's second law f*6 z92 d4)ichc g(vnl:pdabvmor a system of particles.

  What is the momentum of a 2000-kghw7:hoe7cf*bsg9 xhg / *rcck(ajt f.u )c54f truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south a4)gb m 9h0hnqf1utfd 6t 20 m/s. What is the magnitude of its momeb9 fmf q0d htgn)461uhntum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when ,cl( zz.3e etkysl. nwr,;cb) it strike () r.n,bl, elzecyk.st cw3z;s the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wiv082nd tng81ja miru-th 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 systeman-iv8 nr d2utmg1 80j?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall and;du)cb m* lt;f rebounds at 24 m/s. What is the; *;ld ubmtcf) change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 ot +d h des 9*- teb1vln:cu/r)1n(ufpm/s, is struck by a racket cuno t vfdtc1l hd9:ns-/*p eb+u1)er(ausing 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 ptg m(g8 -is bb(s8h1 j7n;ejvqond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. Wgh1e( sg(jjqt7nsb8;b i vm- 8hat is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statx/z*/oaqzy* a ionary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a *q/*ax z oay/zspeed of 14 m/s away 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 large ijv-92y0n kh 9tyt0nb object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude o-0yn t9h 0v9bjnti2kyf the large object's momentum change?

  You (50-kg mass) skate on ictnlp q,ji e222v e6bi6,*aw: wn(tpxd e 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, with what speed do you both mobw i,ji2w eptlntv p,xn q:d*226 ea(6ve off together?

  A car of mass 1000 kg moves to the right along a level, gdp60kc*i 5xv straight road at a speed of 6.0 m/s. It collides directly with a stopped mkc06xid5gvp* otorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the recqaj 4nn d*d)kvq1:7gv5gd0z ar of a stopped car that has a m4dqz7)g1aj 0v k v:g*cq5nnddass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg 6in /riil8sk7, 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 rei nrl 768iki/sst and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of maer dp7rorb qc zzkb/:/;-h0h;ss 200 kg, rolls with negligible friction on a horizontal track 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 this rrb z:7-hzd/ek;p ;hq c0bo/rhappens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with respect v2obl3 my95b05 t, x qvaef e0;cguv4dto the log). With what speed 9gb ,vef05 x0ou 2vtmad3y;4 v e5lbqcdoes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly g 4 l3zjzbt7uf(qg h86increases to 15 N and acts for one more second. What impulse was imparted by these fjg 8 hzl7qu6(4fgzt3b orces to the object?

  A constant 9.0-N net force ahu+e yl t.;h1ucts for 2.0 s on a 6.0-kg object. What is the object's change of v1.t;l u ue+hhyelocity?

  A 2000-kg car, traveling to the right at 30 mg qh*;v6:tjx c/s, collides with a brick wall and comes to rest in 0.20 s. What is the average*x ;j: cqthg6v force the car exerts on the wall?

  A 2.0-kg softball is pitched to you y/2jj4 ce2y9ajxbvh) at 20 m/s. 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 s, what is the magnitude of t)/ y4e 92jaycxhjbjv2he average force the bat exerted?

  A 0.10-kg ball is dropped ontq:kgq)tv7o :daba.ir k v(e-k ;/w g4eo a table top. The 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 table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the table to:w;(qbg4i/rae t k)k.qko :vd- a e7vgp?

  A machine gun, of mass 35.0.+ dn)9y .4eofakeiywt j;n;6b pgr 4p 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 exerted on the ma4 4d9.k.fy;jtby n;wi e+np6a gopr)echine gun mount?

  A fire hose is turned on the door of a burning building in ordsf(; niau(*9 p)mzy rger to knock the door down. This requires a force of 1000 N. If the iu p n;yrz)a*s9mg(f (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 raquq.jj ii,.,v te of 120 kg per minute. It falls 3.20 m to the ground. Assuming the.vi , u,qjijq. water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, ac7w j7cw5qdig ys* -j1jhieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average ijyw 7w1*cj7jg q d-5sthrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallg,robqr 2ymv5o7.4 bjy at rest in outer space. They pushjyr2oo4vgr. ,m75 bbq 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 s4e1-ihob gov yz2/( gepeed of 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 is the total kinetic energy after the co (vhz-i2bo g1 ge4e/oyllision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x hf+u0ygqi, bn;0m 0sd direction makes a head-on elastic collision with a 0.15 kg object initially at rest. W0gi udmfbq; 00+ sh,ynhat is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired k6z dz742uduae1z 2c .by/ 2hvhpoxt6into 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 y4d1 .eoh6 zt2a/zu2v2bchzkpxu 6d7 velocity of the block right after the collision?

  A proton, of mass m, at rest, is str o16 shez4vx9g ;y0opvr-d5ncy5w xc,uck 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 the collision? (Assume 6g41w-;so5cx 09 vnvd ,phy5coexzrythe neutron's mass equals the proton's mass.)

  A 50-gram ball moving r .m3gr.hg4 ;w2b cy4: rh,bu;rjiuka+10 m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball uj4g.ah4;cry2bh 3; rumb:.rri wg ,k immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s c; fgjw(lcx q2l5+f (r;tidl :pollides head-on with a 200 g ball sitting at rest. The collisiojwq pf;: r lixf2l+(d(5;lgtcn 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. p5jjfyfj-i .2a-p mp20 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, whaj pjj5 y2pa.-p-m2fift is the speed of the masses after the collision?

  A 2.0-kg mass moving to the eastqt)8t)f-4qu kk lwpxprj(o7 8 at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during ttjl4 8(qukxo)pfkpt 8 q7)-w rhis collision?

  A car of mass m, traveling with a velocity v, strcex e: 2zbsp),1maddwc4z 5.sikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastx cdd42zsew ,b)e:.c ps5a zm1ic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itbwf0 nw+ de,/gm js xaw 2m:/fm6pp9j*self in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upward p+bpj6*w0:,/ga m9w mx dmsjf e/2fwn.
(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 collides1ym7 8afddg9/a wde zuwwr-68yb;1qj 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 of the cars after collisiwey81/7; jm wwa8qu1zy g6 r9d-adbfdon?

  A 1500-kg car traveling at 90.0 km/h east collides with c l s5u0x9 :(q/cntm n5wnyl2va 3000-kg car traveling at 60.0 km/h south. The two cars stick together after th cnqw2s5l0n v9 lx5nmt(cyu/ :e collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. Object A m1l7c8jp c1lm 0,sr krfoves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a f1mlrccksj ,r7p81 l 0perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving tt e1kfut4dj5x b6 /m.soward 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 f1.jkemx54ut sb6/dta 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 fjicz,1h 6 wc)6-nn7sbz/kzh at x = + 21.0 m. Where is the centerh-cif1 z )s/nwzn6zk,76 hbjc of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. Oneoxj:-as4aq)9 o d+a9 pbegh4e particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is bsxp-e9qgh 4 a:9e)4aojad o+the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at y6v z/k8un 5yt(0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordu6y nkv 85z/tyinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (bfc 9ii;nf r,/1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of maf;rfi c ,9ibn/ss of the system?

  A 3.0-kg mass is position p. s8squer)i+ed at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What )q.rus8 eip+s are the coordinates of a 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 thlt : j*mid9d*ae CM of a whole leg including the foot when the leg is stretched straight out. Assume the peldijt9a m:d **rson is 1.60 m tall.