What is the SI unit of momen5 sx45(yjeaj) t tfyg3s* ozl3:;kc hctum?

  When a cannon fires a cannonball, the cannon w0/iahto ,2tv okb 4c7y6*ztjd ill recoil backward because the

  A freight car moves almn s4modd6- /9 +t5qlm1 vpdztong a frictionless level railroad track at constant speed. The car is open on top. A large load of co5 1vmto d9ldz- +/qn d6mts4mpal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What h+(/ wfk fpij8(, ywgslappens to the velocitpf8f/g(wy(lij+w ,sk y of the sled?

  A rubber ball and a lump of putty have equ+ ,dash)jv1pzo( m*qnal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit.hmsvqjoad*p(), z + n1 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 rep yd*)/vde 8ctmresent its kinetic energy in terms o*8 dyve td)cm/f these two quantities?

  If you pitch a baseball with twice the )4pq:rqd5*q 8qd6fhway jl r: kinetic energy you gave it in the previous pitch, the dqj 8rqq r:l:564*qwfpdhy) a magnitude of its momentum is

State Newton's second law in terms of mooc e-kml(h(9s mentum.

State the law of conski + j0 -nlup9(qb29 ;(men sdud2pylgervation of momentum.

  The area under the curve on a Force versus time (F vs. t) graph repres-k plzinw8vy(9qaknj(. gx+0ents

  Which of the following is an accura btijm4 nuk3ut/1i 8 5zpz4qzs3j,5jmte statement?

  A small car meshes with a large truck ineg 4tv.o+-olo1 j,ipk a head-on collision. Which of the following statements concerning too+kvgioj , t4-elp1.he magnitude of the average collision force is correct?

  Two equal mass balls (one red and t g u859dowl+w7p1ndo cl3hr) khe 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 c8n )w79opl1 3cg orw+dkldhu5ollision with the floor?

  A Ping-Pong ball moving east at a spee1pl wm:w yehe,if62a s5 ;*scbd 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 object experiences the greater magnitude impulse during the h:6lassi, *mfwc52e;p wy1be collision?

  Two objects collide and bounce off each oth9gy /0ljx: 4uwgum an6hk 2gr9er. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-kq+)wo l/jkfft3 1 azn6g object moving to the left at 2.0 m/s. Which statement is corf6jnkawz1l 3)+ /q otfrect?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-)42l9xszq sm8z qo)/ueujq i 6on an 80-kg halfback run4z9)m 8/sqx 6 jesl2u) uizqqoning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then whi0xk f4szkdyk0hjq. qzu )x .-.ch of the following statements is trk.-quj4qk.zyxh xd) 0. skz 0fue about kinetic energy?

  When is kinetic energy c,(,9gunyh)tnu xtg-d ysj55yonserved?

  In a game of pool, the white cue s 4jyv5u)qim,c3 8q9qe:ywbjball hits the #5 ball and stops, while the #5 balqi8vq9 ,4yu:3j)y ew bqc 5jmsl 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 co 8eh l8iv8 6azzxudp:+m )2ze:kwyv,hd0 c r1cllides with a heavy exercise ball at rest 0e8y zx,dcea +dih l26urc)v1z8 wmz:v:p8k h, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right ld)i lq0p+ 3x2:o tpcocollides in a head-on collision with a stationary bowling ball in a fricti c:d2o)lt +opp30lixqon-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 :fmbps5mxhvi 3a..*vspeed of 5.0 m/s collides head-on elastically with an identical ball at rest. What is th3pf*.m xvsi b5h.:mva e speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collwbh/rm3cc v p+3eh69lides 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 +3r vebmwc9l hp/6ch3 speed of the light object after the collision?

  A very light object moving with speed v collides head-rk*wtk)(mo//5r zgyrn nt7f +on with a very heavy object at rest, in a frictionless environment. The cr*r)ztw /r+fn/gn y5mk (k7toollision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity o,l(*o9bj :ifin op- vip),piaf +3.0 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 yeli) i ,f:ip,oja p*-oib(9l npvlow ball after the collision?

  A very heavy object moving with velocity v col:zg.j:gv1sqlc/:cg,d oota 9z ee :9p*+ xbfwlides 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 after theg coz:v:l*9 +p.wz 9d,sxg:/1 :acjeegtfq o b collision?

  In an inelastic collision, if the momentum is conserved, then wil) + kuktc4exw 0sb+;2fvw3 ihich of the following statements is true about kinetic ene); f2v0i 3wbkis+w cult4+ kxergy?

  Two objects collide and stick together. Kineticr fwr y:t;nb088lwp 4r energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides ptbp*g9et k: h;baz8;in a perfectly inelastic colli;8 pbb :ta pth9g*zk;esion 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 objed8f sq0: vtl67vn0l jxct experiences the larger magnx6nd fvt8jlqlv 00s:7 itude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectrpj-0/b tm9u r.t:uq ied 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 fo0tjdf; ob:-cjx)3eqj llowing statements is falsj0xe; f-dco:jjq ) bt3e?

  Which of the following yxjgrali-- t y0-;r 7xis a false statement?

  Tightrope walkers walk with a long flexible rod in order tby1 2ftgt0 3lmo

  A plane, flying horizontally, relea- kgd5 ;7(dyf p:vxjzwses a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the boxdyfzwk pd-;gj5(v: 7mb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision wanx,wqvtohi/ f *g4d1: hwl h;*s completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of h;w:xgh, 4 ft*oqwlh d 1i/v*nmass?

State Newton's second lawzm2- ei)2nzypfm.7 uf for a system of particles.

  What is the momentum of z5c;.e7xakst 3 zpo.8is/wido i) y6p a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude zxpwzog2. k/3of its momentum/z .2op3wgk zx?

  A ball of mass 0.10 kg d /z,pccyfc mk7((6 gx8ho-lcis dropped from a height of 12 m. Its momentum when it strikes the p6h 8oc,-cx kyc( d/7g(fmlzc ground is

  Two identical 1500-kg cars are moving perpegxyxts2ydg 8w v8 7)c*av 1j5kndicular to each other. One moves with 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 system2*dy5vg)wka8y 7xctxsg8j v1 ?

  A handball of mass 0.10 kg, traveling horiz j.jt/u: mmv/cx e2o;jontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the m./t/2; ujcojxvjm e :ball?

  A 0.060-kg tennis ball, initially moving at a sjkms- y 1rt:1iyt9m6ypeed of 12 m/s, is struck by a racket causing it to rebound in1 s1jky -rm:9yit6 mty 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 s:;cmbdu 1hj 6rgba jp78 i96bfrozen pond. The machine fires a 0.40-kg basebc:169ba jd8 sbhu7rgpb mji6;all 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 stationaryykzawib7 3vyabb78 9 c7g(er * when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a sp 397cwvbia*7b a ryy zgk(8e7beed 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 t;dp zt9i7 u 3wzqj+a9a large object at rest. The small ja+it9zquzdw 9t37p; object bounces straight 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 frjt gsxx- 3:+ithp+uk 55e9 imyiend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off 5i +:xkxtipu5s9gm3 ty-j+hetogether?

  A car of mass 1000 kg moves to the 2l)x*gnzo c l0k qe3.fright along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorc fol.l3 ekg2)nz0cxq*ycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a k)*v*pl; vkl)w efg: lstopped car that has a mass of 1500 kg and tgkv *wp:v f*) lk)el;lhey stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is al v7q: h,vo(xfc *trgm+lowed 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 brakes released. What is the speed of the two cars after g:t(+h *vvox qmrf7, ccoupling?

  A railroad car, of mass 200 kg, rolls with neh 7p *s1 t-k vbf1is18wzix-gwgligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distah p tizig-1sfxs1w*w1-k bv78 nce 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 log at the rate of 0.80 m/s (wrqhnodk4vtv( t e**:( n(dl +zith respect to the log). With wha( d( evlohtn+q4 rkzt:n(*dv *t speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increas ss w; haahbf.sgzpht++ k5-(ngh 2;+tes to 15 N and acts for one more second. What impulse was imparted by these forces to the o+f 2+ a-swzt;. nt(hhhagb+g k ;5phssbject?

  A constant 9.0-N net force actc38mdgjzcfk-d hzn6kyj: + p6 .y-zc:s for 2.0 s on a 6.0-kg object. What is the object's change of velocitdz +k chpdym jk 8zzjg-c .6f-:y63:cny?

  A 2000-kg car, travelingxwa/md)*dx(j-bint wx, 2 y g: to the 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 exerj n,bxdtd 2iw x-y( gw:/)*mxats on the wall?

  A 2.0-kg softball is pitched to you at 20 mv/,2kt vs k un6gbwpk8yb08 3d geml8//s. You hit the ball back along the same path, and at the same speed. If the bat was in contacg,uy/s tw68 e8kd /p8n0g lm3vbv2k kbt 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 tamrmwh1 21ml g l r,i5nujy90p kzu+;q,ble 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 l;mjmyhlzk qir5p n9r+lu mu,2g01,1 wasts 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, with a muzzle vel8pyuj*e1bs8zc,5m; nqfc h. 2vsr 6oxocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mr.zue bm o*fcn psh 6q1;5,8c82sxvyjount?

  A fire hose is turned on the door of a burning building iw1-0dwm p+ ysfn order to knock the door down. This requires aw1syp -fwm+0 d force of 1000 N. If the 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 horizont9nzkc5plw6+g) 4e u fjal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water dogzpu5fe6 9 cj+ kn)4lwesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, whe-nr 2m/a0ghpun fired straight up. What average thrust force does the rock pna0m2ug-r/h et engine exert?

  Two astronauts, of mzj ;pb+k4aq7, oop+cl fmk(8i asses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is 4b,+7p kolfj+8qpoaiz(;c mktheir separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It colli:3a po )-elrpydes in a perfectly elastico l-p)rp:aye3 collision 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 theom)b):/i+ducvlu e ( i +x direction makes a head-on elastic collision with a 0.15 kg object initiall/ic u: b m)evdu(+l)oiy 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 f1w4)wsm2e+g b 772wapzjiz y 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 the blop zgji1y f seww 2)w7amz27b+4ck right after the collision?

  A proton, of mass m, at rest, is struck head-on by a yp0 qi-c )4tq1i8bgw)je6uwdn alpha-particle (which consists of 2 protons and 2 neutrons) moving q6b)8c -)g0 j1qii4puw ewdty at speed v. If the collision is completely elastic, 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 masssa)n8f8yaoj hgc24s/(r:q d k 100 g. The collision is elastic. What is the h c2 (848qso:gjars/)fkn ydaspeed of each ball immediately after the collision?

A ball of mass 400 g moving tb o x8i2n9zudm7)j c*doward the east with a speed of 3.70 m/s collides headjmdx87cb)2 *uzoni9 d -on with a 200 g ball 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 with a spee zz+1c x ;f: s 0pezc2exytg,-dmytu-7d of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the massestze zx,xefs z1p-g;cc7 y +:mt0udy2- 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 peroa6 6 n+ow bmkwoatz6(x h, j-w0kfx6+fectly inelastic collision with a stationary 2.0-kg mass. How mu6+okwnxa60ao j6bf,wz 6hto k (m+x-w ch kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station s..i5iraf 7i3uki 4khwagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ener.5ra k7.uih34 iks iifgy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itselfnfa2b,7f cvt - in a 2.4-kg block oftcbn , 7fv2a-f 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 16u:uc *nl k.kytrg2i3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fi16k 2nuu *t. rklicgy:g. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelinf 8wigvxlw3g/-n d *x(g at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collisi(/dwv l igf*-w83n gxxon. (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 moj-on 1wkt7f/0 . vcbetves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kvk- j/bw.70ofcnett1 gm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward trr8ox f ;x8 nsyi6n-20zog 2mthe 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 the velocity of the third fragment? 02n- ry6gmz 28firso; x tx8on(Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a0od 5jqj ggjb)10kay 5 10.0-kg mass sits at x = + 21.0 m. Whereg510jk b )yoj05 jdaqg is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle i3aj1i w zd7ht/s located at (3.0 m, 0) and has a zhiwd/3at j17 mass of 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 (0, d,puxd(-afj9v:qok z9 xs *(dstl7d, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center oxl9a9o d, ,djv kd(t(*p7qf usxzd-:s f mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m,h9gj xh 58wo6n 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mas98 5nhxjohwg6 s of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg4p uby1sy0uh9 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 massey 0b1upysu4 h9s being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg inclycg;u 17k p( bgp hb-orazl/11uding the foot when the leg is stretchepu-yb;(11bhp k z7 lc1gor ga/d straight out. Assume the person is 1.60 m tall.