What is the SI unit of momentu 9 /1-gy0wl0q e 9(brkzjarjx qo+liy:m?

  When a cannon fires a cannon)+bfk(+kfns vi sl4ftfe q.+e5no . 0bball, the cannon will recoil backward because the

  A freight car moves along a frictionless level ratg5lx:ax -b osrtnws/, t) s)fc)g3zfo1h 3d, ilroad track at constant speed. The car is open on top. A large load of coal is suddenly dum31 xbs,x/tgt) crg5f tw-osa: )sd f,z)h3nloped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while iymfn3cajl7d6s). 2m sledding on frictionless ice. What happens a2fj6)nsc73 .immdlyto the velocity of the sled?

  A rubber ball and a lump of putty have equal mz/7di2rvhg y.ass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which iz2gd .yir /hv7t hit. 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 re66e7v bi 2becc m)9typ 7nc11tzd;oyvpresent its kinetic energy in terms of these two qu2 6oeypb e7n) tv1bvccy7;ci dz916t mantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prev.rcv*0 tgma8t ious pitch, the magnitude of iv8rmg0c tta .*ts momentum is

State Newton's second law in t b1yjb/r7n) st*m,g hserms of momentum.

State the law of conser8*6 hvy zjpx9sd uy4q/ ozqr3i,f(3 mevation of momentum.

  The area under the curve on a qfv2a5oh .n 7u +ai5,miha jy2Force versus time (F vs. t) graph represents

  Which of the following is an accurate statemen7p3on.p +vtj ht?

  A small car meshes with w-lsu0vd09u-km7 .e o v;nul ra large truck in a head-on collision. Which of the following statements concerning the magnitude of the averagv0 -veur9m; nuo-ku7l.wsd 0le collision force is correct?

  Two equal mass balls (o(k mg-)vqlbn1h0til x o,e+a.ne 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 subjecte) 0tb1n -+q.kvhixaml, (oge ld to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides+u,3 1zi( trnm3z lyfk with a stationary bowling ball. The Ping-Pong ball bounces back to the west, anmzy( 1fk3, rn 3iu+ltzd 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 otd:+gt w 2.egy 46t/e8occfjsaher. Linear momentum

  A 3.0-kg object moves to thalw8fsjtvp n3,:kp /1/ wcg 1ue right at 4.0 m/s. It collides head-on with a 6.0-kp a/:l1k8 /jp1w wt ,fs3vcungg object moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebaxcz9u d2 k*8g(nx h3x6qmv e5vcker moving at 2.0 m/s tackles head-on an 80-kg halfbackxvhcv kq*2g(z5dx6 eun83m9 x running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if th:gykjkd14- 3)p xvatge momentum is conserved, then which of the following sggd)k3p y:x -tv14kajtatements is true about kinetic energy?

  When is kinetic energy con4n 0jxu f(tul7itq4 9uw t;h+pserved?

  In a game of pool, the white cue ball hits the #5 ball and stopj*gkbn 0 nux:7 d2iwg*s, while the #5 ball moves away with the same velocity asin dn* :wu7jb02x*gkg the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collid8e29m: 6v0o5 aw3ljgl ux jw9nzxudk. es with a heavy exercise ball at rest, the beach ball's speed after the collision will be, app ln d6xg.j98javmxz:9u o02ul3e5wwk roximately,

  A golf ball traveling 3.0 m/s to the right collidexrnx t5+ r8p c.lbj7l8s in a head-on collision with a stationary bowling ball in j7xbn p8l85t.xrr +c la 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 speelpk2f7ba7 zidevi-qz+l/3j: d of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the s3jk:l77al-qipz / bf +zdv2 eipeed of the initially stopped ball after the collision?

  A very heavy object moving wid84b li6m dsh57pxc zbl5qf72th speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows6i5 chl4 mxb87b 527szddqflp down. What is the speed of the light object after the collision?

  A very light object movinz, .e +.jtg3bmcak 2dgg with speed v collides head-on with a very heavy object at+tm3jdgbge.zck .a , 2 rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0cajz( y1doey8 9igg/s/ 8am k; m/s collides head-on with a yellow ball of equalay9gzd aok;g1 (8scy/m /jie8 mass moving 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 velocity v collithr/.pl(h1 rq j s4jh4des head-on with a very light object moving with velocity -v. The collision is elastic, and thhjq4/ .4htsr1 lpj r(here 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 which 7 /z.iynosd +3v p,pq* yqkadd):nih 2of the following statements is true about kinetic energ 2kovz d ndq7+,n3yi q/d.s:)*hapi ypy?

  Two objects collide and stick tiutihhc 0:4 -,rr dsv2umw:(b vre/)hogether. Kinetic energy

  A 3.0-kg object moves to the rightc6jnkp, v,) rgh aqz;7 at 4.0 m/s. It collides in a perfectly inelastic collision pj,cg ha)k v,rz7n;6qwith 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 w:qap cian6, : vwr0-buk-5 bdt*yn/tfith a large object and sticks. Which object experiences the larger nft:a/6kp,au bc t-wq0ry *-5vb in:dmagnitude of momentum change?

  In a game of pool, the wh b biz o6p3m,-7coqzh2oftr 36ite 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 statement1gg07og zlr(i s is false?olgzri10 g g(7

  Which of the following is2+nsw azh y k:i-0ewg0 a false statement?

  Tightrope walkers walk with a long flexible rod ini:5p ma31 hs+mkgg 7ac order to

  A plane, flying horizontally, releases a bomb, which explodeso 4jr1/m+ br;k yg:gul before hitting the ground. Neglecting air resistance, the center of mass of the b gu/b; rok+4ym 1lr:gjomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The colx(uc+ur0.qoa p( ;z5nd tvik y b1j8f)lision was completely inelastic and both cars quickl 8+5czf)itroybu(q vp1; ujk.nxd0a (y came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law forxdzyd/ y yu-j)w6 w i+je(u:9m a system of particles.

  What is the momentum of a 2000-kg truckclu,i .u*i c4i)k ac7o traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Whvhz s-e.k/r-i at is the magnitude of its momentumek r-/s-hiv .z?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it se/mr bnxcrbt3r+i/)35g1k 0l*n fa zaah r:e 5trikes the ground 3i r/5anf3 b+*b1zr/k :hgteraclmx)0ar5enis

  Two identical 1500-kg cars are moving perpendicular to v zdy)wz5- nr*oio) p/each other. One moves with a speed of 25 m/s due north and the other mo)-/ypodzv in5zr) wo* ves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall w vzmdm/c8;x6pqh h::p+yen/ and rebound8:+xd / hz:y/6menpwm; vqpchs at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s,;+wv:l mth8b) lgbm3h is struck by a racket causing it to rebound in the opposite direction at a speed o 3+hb)bvmh gwl t:;lm8f 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 po*5x ejo ,qlvd3nd. The machq3,* olj5ve xdine fires a 0.40-kg baseball 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-walkiuhea56v uat/8 ng outside the space capsule and is stationary when the tether line breaks. As a meanvu a/ah 658teus 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 astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a e;mj6,itv r//o ;rnyclarge 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 objecy,rc6 /trom /ej;;invt's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40- zqakn0sj0wl2wx/56s kg mass), who ik6 0 0jl2s 5zsaqww/nxs standing still, with 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 aut(k lm )eqvfj*p*g.9t a speed of 6.0 m/s. I mjkt9q*f(l*uv p)eg .t collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rfh(dci,yd 8j( ear of a stopped car that has a mass of 1500 kg and they sticj d(y 8hdfc,(ik together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowedl (i kw)nw.th: to coast along a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second ilw kt)w .nh:(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 horizonta0gs tm+ 5r10v9 )lxmzydmqh- sl track with a speed of 10 m/s. A 70-kg stu 9 5qtvhrzmyl1s-+mxs m)0g0d nt 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 a 100-kg n23jlp/x5(ipcq9 : 8 rlgawwu log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, qlu3 :cx9gpwwp8r5n / la2(ji with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly incre/rwv3k4e26j8n d asfz ases to 15 N and acnrjdk z34 f2va/ 8ew6sts 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 s on a 6.0-kg object. What is the 5*hgisx6 dajx**8nl bobject's change oxai** 5l n*sj6hgbxd8f velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall an1u :xi 85r+g, q tflwr7kcvm2vd comes to rest in 0.20 s. What is the average force the car exerts on the walvturx+5g:f2i wr ,vcq 1k7lm8 l?

  A 2.0-kg softball is pitched to you at 20 m/s. q/s+h7 gu.i maYou hit the ball back along the same path, and at the same speed. If the bat was in uqsi .ma/+gh7 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 dro u*pj:th0zimry 584awpped onto 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 laswhr: 50yu* 4m8zptijats 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. urb.mp/8jb 3t0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 .u j/8btmrp3brounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned ok5j3h,c w)g ian the door of a burning 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 s)wg,53 jkahic tream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120)dgv4 b-jm vs0 xfb1,y kg per minute. It falls 3.20 m to the ground. Assuming the watvv-4 sdm,b 0j1 gfxyb)er doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of7lsj )w8cbh1n 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engine ex7c1 )hj8wlsnb ert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest i.t. ;si wa3dyfn outer space. They push each other apart. What is.; 3w.ityasdf their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed j(d,o p71hc+ryauy2 rof 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 ener oa ( hdu2+cr7r1,ypjygy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the5 qegt19rzd b3 +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the t95gq ze3d1rb 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 bi+y.kz ffqs.* ix6ap1hw;)h 3gd.mzulock at rest. The bullet emerges (au wk .ysizhi*h1.d63+zmxg f)f;.qp the bullet does not 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, at rest, is struck head-on by an alpha-particle (which con.sf gf6 qb1c9d z+ve82wbiyr3sists 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 the neutrqiy.v36zsbe+ fwbcdr g9f1 28on's mass equals the proton's mass.)

  A 50-gram ball moving +10 avw:1zm f + 9sl8zhup.m/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the s+zm1. uf pzws:h9lav8peed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east wiidlm *r*li4*j th a speed of 3.70 m/s collides head-on l4d***lrj miiwith 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 speed of 5.0 m/s. It collides he rnx f7b-ww*37nqa7zvad-on with a 3.0 kg massq-z7n7 f*xa 3vr7bw nw at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving/ xr p-6t.rrlr to the east 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 6.trprr/l r x-during this collision?

  A car of mass m, travelin krba ugp(8)k/g with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the in)p kk rbgu8a/(itial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries it,xe3gw(l,gv2so mkt8; zbyt * self in a 2.4-kg block of womy28gtvtx*,el3kgzw;os ,(b od 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 collidesc2uhp gjqr* 416h g0kw 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 qu 2prhhgw ck4*61jg0of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car travelin .y70geirboeom71 od x8ovp*6 g at 60.0 km/h 0xo7 gpevoo *r i8b6.odym17esouth. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surfpyi8u :,q-y23mdvle gace. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a pq3,lg8ypu yd ie2:m-v erfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velpf :/ xx.up2d/lf*bxbhn: pa1ocity of 4.0 m/s. It explodes into tfn2x *p. xh/xp1bdl:/:pbfu ahree 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,wuanmmc -cw)s1q6 55;jcer w7 and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass 7qcww6 j)5w aem5c 1csu;rn -mon the x-axis?

  The center of mass of a two-particle system is at the origin. g:jc v-5 j.ly fj2m0,thxclp0 One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is thjj0:xhjfmc2pl- y.gt 5c0, vl e location of the second mass of 3.0 kg?

  Three masses are positioza6e r /g.;*s 0a8vnvn a2ujzzned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.z;8z .ve*araasg0jn6 2/ unvz0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0)(wj2 nt+e3 eqku (hvg+, (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the log (e t nuwe23+vjh(+kqcation of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), ahux bmojr zip3 x,;)1-nd a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which ;i 3 1zhm-)obx,rpjxu 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 po0ic4axl gx4 pu;drg ,)wh 12vosition of the CM of a whole leg including the foot when the leg is stretched straight ow;xhg i1vcg4dr xl2ou4a,0p ) ut. Assume the person is 1.60 m tall.