What is the SI unit of momentum?4pyup-l.x(ib.g m(2w iwyh 6 e

  When a cannon fires a cannonball, the cannon will recoil backwaru+agik + e65 0wr:fx+uhkzr1 p wnj-c+d because the

  A freight car moves along a frictionless level railroad track at cvtj ;(lh9 xdw8g65u lmonstant speed. The car is o9jxvt (um6dl5hgl8 w; pen 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 frictionless ice. What hssj puq5 5d2b 2kx(-ppappens to the velocity of the sle(-jkqdsxu 22pb5 5pps d?

  A rubber ball and a lump of putty have equal mass. They--f9 krfsxpf-bh ,i) 7bthvq1 are thrown 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 otv1kih- xp-9-r 7qffsh b,bf) bjects experiences the greater momentum change?

  A sailboat of mass m is moving with a momek ve)l8f3z kp,u( 5gtpntum p. How would you represent its kinet8p ) ulf kg,ze(k3t5pvic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prnn9p/ubnc(h,rvus gq,1qq g ,btv11 8evious pitch, tnsqqn,11,vrvq , g1 b(p cg u9h/8tbnuhe magnitude of its momentum is

State Newton's second law in terms of m0 :gwao:z:2pboh5(0iy k ;laqmpz yt*omentum.

State the law of conserv5ts ut19zpbg 2e0y, npation of momentum.

  The area under the curve on a Force versus time (F vs. t) gra rx8ivi/ )2ljg.dnk4uxr.v9 tsed )a *ph represents

  Which of the followingdc;kwj; tw8 iuai 5+z; is an accurate statement?

  A small car meshes with a lgyk u qku uer8g; 7)erf3g5*pcxxiz;,(b:6wrarge truck in a head-on collision. Which of the following statements yz;uke8,5;7qf 3: c()ugixxkrbgp guw r6er*concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other bf6eayj f.w ol9w5np tr4a 5)k(do;wv9lue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjectefe a 64arwjwf5 5dkol w pvo)9nt(y.;9d 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 with a s:1 xd)xtfn h5l+akpt,: 2w tzqtationary 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 pxhf l,:tq1ntxwa52z dk+: t)collision?

  Two objects collide and bounce off each other. Linear momentuqnw/c0lk m b0wvh *xbb1j51;om

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-0t v+rtbt7xv cu/ g/;xkg object moving to the left at 2.0 m +tv/x0/bgv rt7;u txc/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tack q )51ka*iegklles head-on an 80-kg halfback runninleiq)gak 5*1 kg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collisig +i51 ac-*1sdi 7xbzzswun.k l2q f3non, if the momentum is conserved, then which of the following statements is true about kinetic energy f zan1+5li7* cbdus1nk zi3.q 2-xwsg?

  When is kinetic energy con )lk*l1klzh: 7kcpp 5cserved?

  In a game of pool, the white cuead9b rip9d w+82 j2mnv ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the jia9m 9r28w+v dnpd 2bcue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a uqg41fvat7 lnll 46q;heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatelyvgnf4lluqt1l 7 ;a6 4q,

  A golf ball traveling 3.0 m/s to the*1 1g4z1qb7npxo bq0ja5 ho ug right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediato05z47naqohg1 u*px1q bj1bg ely after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with axx;gnjy5ng1sy ) n10wg //sv an identical ball at rest. What is the spee0x 1/vn/1)g n ssy;nyj gax5gwd of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides headut c5vkl-d0ysdi ( ,b5-on with a very light object at rib slyv5d,0d( kc t5u-est. 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 bhd+7s*;jkgx2 99y1 tbdg axv head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfeg d9+kg2b*vdbjsx 17hx y;ta9 ctly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0p)jbn2 8.eeq7l+fmq tvv+mf. m/s collides head-on with a yellow ball of equal mass moving with a velocity of -fqfe) j+8mm.t+elqnv27bpv. 2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velo:ceqq nel thk+uzi8 :jt:/v41city 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 /1 et:kqn4 ej8zl :h+cui:vq tspeed of the light object after the collision?

  In an inelastic collision, if the momentum is cem2 :swg72j te us 6i0cb:4jovonserved, then which of the follow 2ie:2eju4vs 6: c7j0to sbmgwing statements is true about kinetic energy?

  Two objects collide and stick n2s ;vl 5dl /gl9b2 gs4vfu3abja6h7b together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It co2/qvfavj 9;nv llides in a perfectly inelastic collision wvaf ;vj nq2v9/ith 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 colli93-yn)u oa4n 4exy l2 rifsn/bdes with a large object and sticks. Which object experiencesnuxf 4s)l/3 eyian y429nob-r the larger magnitude of momentum change?

  In a game of pool, the 3cxh wb,yso5cqpa - 74white 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 followik*,l0dle ;x (r8nknoyi+ ax 9tng statements is false l8rnek(o9xly,k;a xn+0itd*?

  Which of the following is;:w/ cmauc sp 9u.l -rv.eertzg*/ ry8 a false statement?

  Tightrope walkers walk with a long flexible 0dxbr bz00ig(* fs k(l:a j6gvh2cbf7rod in order to

  A plane, flying horizontally, reldw/07t dcqa uaz3,8 f3;z)aj rlxi6kueases a bomb, which explodes before hitting the ground. Neglecting air resistance, tq76x k/u a3cdzld,8 ; i fu0)ajzwtr3ahe center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free roa vrp v15l1hu 80yb:tqgu gi:w+d. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this syt+q:g8p1uhibv :y0 5w lvrug1 stem's center of mass?

State Newton's second law for :7.acib ako 5 xh0jd:aim 93ila system of particles.

  What is the momentum of a 2000-kg truck traveling at 35 m9(agso deh:j- /s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its 9agd2 /0cv kg7o8lcr q(qs0rimomentum?7 8grar0ldo/ vq29q0kcsgci(

  A ball of mass 0.10 kg is dropped from a heigt2g8lre2w ir+ht of 12 m. Its momentum when it stt2w+gr2i e8rlrikes the ground is

  Two identical 1500-kg cars are moving perpey m9 xp(v)p7b si2t)q0j klmz,ndicular 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 s2mv)0pbqmsy ti9)l jzk px(, 7ystem?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s,.ixbwem:f7g ) 2a kxl0 strikes a wall and rebounds at 24 m/s. What is the change in the mom lk 2f0bia xx.ge:)7wmentum of the ball?

  A 0.060-kg tennis ball, initially moving at; 2 mqlm-u4bat8m;kqmu6t 0 ov a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speqto42l8bm0 m v t-u;mau;k m6qed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placedo z;qsscp:bz1s-,my t/d+3ti on a frozen pond. The machine fires a c/+qp :,oyz mzsst3t;s bid1-0.40-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-walking outside the s0mom ,q8ts / pce97l:z6 ayxgypace capsule and is stationary when the tether l y80ygqmso/cm6 e7:9p xat ,lzine 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 astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches*s a,af-fn ylg4-:,qb1mj c2cgq5hfs head-on a large object at rest. The small object bounces straight back withqy,s s c,fhffg 1lb*gca 5j-2q-:4amn 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 (40-kg mass), who +7xpopv zo wz+h-i2i3is standing still, with open arms. As you collwip2+ovxz7ho -p+z i3ide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves tid5 ltwom, .,hgz3ytwx0ih., 3ul )jk o 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 iw.dt0o ,.x3hl3)m l,yhzk5tij i,wugs the total momentum after the collision?

  A 1000-kg car traveling at 25 m/sli sx8gf t1(yeada)bh9e 6y+3 runs into the rear of a stopped car that has a mass of 15b6hy9 8t s eia3l1)xdefg( a+y00 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,00 zq*xg 8d -fgav/qyl,o79n5ec0 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 brakes released. What is the spq7 a,n-lx 8edg/ozg vqf 9yc5*eed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a hornrm.pp/qv,g, a j; qn:f v0sy;izontal tracn s0qfn/:v.p;,r,mj; pqagyv k 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 happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s gx 0oldt(ic/z,w bg+((with respect to the log). With what speed does the log move, with respect to the shb,g0ol/( xwiztdg(c+ ore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increaseswvu.swd33f p 2 to 15 N and acts for one more second. What impulse was imparted by these forces to t 2w3f v.suwpd3he object?

  A constant 9.0-N net force acts for 1onb;d4 f-crf2.0 s on a 6.0-kg object. What is the object's change of f;-cofn dr4b1velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with)pqg d72(x7iaqrydi, a brick wall and comes to rest in 0.20 s. What is the average f,7ai2q(pyx g rdq7di)orce the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hwkhn2q kxk f1mh6 (g84it the ball back along the same path, and at the same speed. If h 62xqfg(k1wh4 8kmknthe bat was in 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 dropped onto a table top. Thej.1zd1 ;9x6ba ddob28zmo ekp 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 0.15zkj bxop;e1.6da 1mbo9d2d z8 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,6azzg9jk ,t,zqh 4v* r fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at t r64tj hk gz9z,,aqv*zhe 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 buildin) uiyk/*afxi- k1;l sig 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 stream needed, assuming the water d)is; y-a/ilxkiufk1*oesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per c;.x//7 fr+ jsj71i6jzfhrvdi xn8b6am , nniminute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does itirn6761v sijhmc8 fda/,7j .xnx/r jbnz;f+i exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s,p4a6 9umo4u8 b zzkbl sl*9b2u when fired straight up. What average thrust force does the rocket e*k2u48sm 96zlbbalz 9p4ouu bngine exert?

  Two astronauts, of masses / ua10q3mrlgq60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separ1lqmqr0a ug3/ ation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rigc.3f9ev4kedu)0xoacuv1 iegy z ;2 x0ht with a speed 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 xex4zucay;.v f)09g 3e e dik1u0c2 vom/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s ini0t() xap yf,v 2scw8i the +x direction makes a head-on el(af ,)swi0 vty2i8xcpastic collision with a 0.15 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. xw n,: txrae4 4vt,/9fk7t ucjThe bullet emerges (thekxn47f,axt/t r4:t uve, wjc9 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-p+;ar)c-eg/w bs,yhyiuu y.t.article (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 the neutron's mass equals the prb .hyu/- eig.sr;tc awy)+,yu oton's mass.)

  A 50-gram ball moving +10 m/ ...lrbnsnv y8s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the8 nb..slvyn.r collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collides ht 0r3 c cadtfl12 44*+jzlxeqlead4xq c z+td0rle*41jtac2 fll3-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 spwaw.e.*k/*nq 0 o bcnceed 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 masses after the cn.eq*/*aw0wb kcnc o .ollision?

  A 2.0-kg mass moving to the east at a spe5b0 / eblvdmb1n5*nqb ed of 4.0 m/s collides head-on in a perfectly inelastic collision with bm1le5b*nb /qnbv50 da stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with*1)3j vp25zpowayi (vbp2vak a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together (ki2*zv w jpva1v) p5ba2p3o yin this head-on inelastic 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 itself iz-0hbfey;9t8hb n .qi (2jdxen a 2.4-kg block of wood a rest directly above it. As a result, the e .e;9d8 fjiyn zhtb(-qbhx02 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 k6 ;9xqi4fmgphav d+z/eapd ( 3m/h east collides with a 3000-kg car traveling at 60.0 km/h south. The thg f+6 / emxpdai4;d9vaqzp3(wo cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collideho 1dgj0xlr) z2(lc(js 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 direction of motiol(gj jc(dr0 l21zxo )hn of the cars after collision?

  Two objects move on a level frictionless surface. Object kw8yiafr :c68 A moves east with a momentum of 24 kgcf6iw8: 8 karym/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 collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.0 fe wr 0+rxwho; 1q ogts7 10l27wqhnf/m/s. It explodes into three f7 s1t/+r f0o hoq g1qh7wr;e02wnwxlfragments: 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 atv5bz +apf o a*1b1)3qtn8jhxm the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center bp a*5 q1m anvjh3fz+1)t8obxof mass on the x-axis?

  The center of mass of a two-particle system is at the origpjsbgh3*h oyl/+n t0o6i6-l sin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of theis 6l0ty3j nsp-*hlogh6+bo/ second mass of 3.0 kg?

  Three masses are positioned as follows: 4uf(gp(x+pz0ccchk(av7 cvd7v) ig cb6w- ,t 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates cdbh0 va(ft +c)ci v gx(pwcg(u- ,z7vk67c4pof the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, p06+m t(qi:,rp24jx dnp 3c iut so)ru1.0 m), and (2.0 m, -2.0 m), respectively. ots6ri0x pr(iu+3pt)dmc:p2n j4q,u What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at(3ji kdh,lj x5 (0, 8.0), and a 1.0-kg mass is positioned at (12, 0),(djj3kli5 hx. What 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:hxy4q9e(p pm the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 mp hxqmy:94(ep tall.