What is the SI unit of mxeel 6z25 n:zxomentum?

  When a cannon fires a cannonball, the cannon will recoil backward because68 jboue*wh4 9sn9khv the

  A freight car moves along a frictio cg2 .p rmv*itkihfp6 t(0t58inless level railroad track at constant speed. The cair pv2mpf0t ch865ti. (igt*kr 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 o grw9oxxt, yle(mjq 45ki+ /5sn frictionless ice. What happens , i/kl9sr+(mo45jgqt5xy ewx to the velocity of the sled?

  A rubber ball and a lump of puz0mo/c 69tkkiqi1i-xh )ib l)y8 x)fwtty have equal mass. They are thrown with equal speed against a wall. The ball bouncesz k y1l8 mi)0q 9f)/k-w)cio6xtxbihi back with 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 moving with a momentum p. How would yo i:rjby5 9+vpdu represent its kinetic energy in terms of these t bi:v+r jp95ydwo quantities?

  If you pitch a baseball with twice the kinetic energy yoi2,y-rlxq.)9ps xi6la wcxx2u gave it in the previous pitch,qp2) s2x xyw -.xx9airilcl6, the magnitude of its momentum is

State Newton's second lawwj h3 mg,mpnrl+i1msm12ww( . in terms of momentum.

State the law of conservatio jrgprev -g*bh t);*/bn of momentum.

  The area under the curve on a Force versus timwou-yeczfwr.;y- n5 j ft8+yq (/3+ia fp:vaue (F vs. t) graph represents

  Which of the following is an accurate statem m (k9 vzcgis ijf2 68;aodg,(*gp5aapent?

  A small car meshes with a large truck in a head-on collision. fyz tsu;y7sj i.2 v26ly 4u/zxuj 6q(pWhich of the following statements concerning the magnitude of the average collision s4plu z.fjjt;6/y62vy7yxzsu2(q u iforce is correct?

  Two equal mass balls (one red and the other blue) are dropped fromscoey4a9q3, di6bxck.ny8jte6tb0 ; the same height, and r;ky66. o j4 8ccedeq,ay tb0snt9bxi 3ebound 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 speed of 4 m/s, collides with x)(qf7sgpr86j wu m*w a stationary bowling ball. The Ping-Pong ball bou mr*uqw)g78wfps6 x(jnces back to the west, and 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 eat:kphq9 tdf; z6uz15b ch other. Linear momentum

  A 3.0-kg object moves j7o zc7to6xo o auu70qmd;;a0/yse s( to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at oezco;ao0s767;a(0mouyt x7ds/juq2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 mbup - q1py,g0x7: wrjo/s tackles head-on an 80-kg halfbackr 0- : qjguby,7xopwp1 running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentu un4ru.o;n cdb 76f3hvm is conserved, then which of the following statements is true about kfunr6h34nvbu ;7ocd . inetic energy?

  When is kinetic energy conserveq/y 8ftcb5* dxd?

  In a game of pool, the wh9ha /(71/ur3u hz.vshkqeskiite cue ball hits the #5 ball and stops, while the #5 ball moves away with 7s/1ke(u .hquhi vsh/zr9k3athe same velocity as the cue ball had originally. The type of collision is

  When a light beach bayi a79h(bhk cid9d o+.p- dda)ll rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the col yh9.7hdaai9cb(d d) pd-oki+ lision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a 3 fhuqkn. acw+xj3 -:rhead-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elasticf+jhuwa -r.k3 c n3:qx, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-+ao)+ zrmo gf;on elastically with an identical ball at rest. What is the speed of the r+ z+ao);g ofminitially stopped ball after the collision?

  A very heavy object moving with sp6yk wgf3 5ic rp :-e g;r40vlnvtz3pt/eed v collides head-on with a very light object at rest. The collision is elasticpg4tr t- k;g icvy/rvelzwp: 06n353f , 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 head-onb94tp) 0xlr2kjce nf )vkl7ga-9emc7 with a very heavy object at rest, in a frictionless environment. The collisi)engfv)acmk lc70 79kp jr-ebl2 t9x4on is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on with 5i uq:z.m ;z+ w/ckezza yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the cq5uei;:zw+kz m/z.zcollision?

  A very heavy object moving with vepe)nm3st3+ (va tb3velocity 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 after the collisi3tsm3+av t ()vp3eenbon?

  In an inelastic collision, if the momentum is co78pgy y/n,c wuv v j,li*y9dw(nserved, then which of the follow/y,d uiyg(* ypwj,8lcvnwv7 9 ing statements is true about kinetic energy?

  Two objects collide and stick62redu ayx o61 together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides inas-q 37 6:x)1jivnp+hk bncbr a perfectly inelastic collision3k)bb1c -s7nxah6 rv+p ji q:n 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 odwm 8b2igj8/wik3, xlarge object and sticks. Which object experiences the larger magnitude of momentum change?dioi/b, 3wkxm 8gjw 82

  In a game of pool, the white cue ball hit s/kc17g+kxmzp pcr27s 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. qkz sh++ s;w m/xqfhw.60eok6 Which of the following statements is fals+ emw o.k hwf0q6hx q+kz;/6sse?

  Which of the followind lhc0n ()evn7q 2qz5 l-z)tnw9,nbqng is a false statement?

  Tightrope walkers walk wituneo+vgg.sn5.n(i)cgf: -v hm l c39sh a long flexible rod in order to

  A plane, flying horizontally, rhw.xh:(k h1 useleases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explo 1hkxuh:.h s(wsion

  Two cars collide head-on on a level friction-free road. The collision was /od4osz9 izx 1g,bm n0completely inelast09omi1gs x 4zd,nzb /oic and both cars quickly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of particsv*, 0z +pn*x5q xlklcles.

  What is the momentum of a 2000bysbp(6fkaf2)bj gg.- f+ 7z p-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving souerrob 0m jlj8ag.-o0/th at 20 m/s. What is the magnitude of its momentugr. 8olj/b a0o m-r0ejm?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it e(* cws naip f:,j2n3ustrikes the ground in( e,s3j*pa ic: wnuf2s

  Two identical 1500-kg cars are moving perpendicular n z 9lb+6yf3 (qpnp6kzto each other. One moves with a speed of6 nknlfq6b+(p pyz 39z 25 m/s 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 horizonfc tf:1 4j/nritally at 30 m/s, strikes a wall and rebounds jfi t fc:14n/rat 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, i(4smadhfov oe6 ttvzt a+4vt5: a+/3ys struck by a racket causing it to rebound in the opposite vt+h :34a/ +4fs o(vvay5t oztma 6dtedirection 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 plvfa47 2zxwju-aced on a frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What i24 j -wvxzfau7s the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the spaqog kw3j;cn(pu6z 7c2ce 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 away f z c(kn 2wuqjgcp367o;rom the capsule. At what speed does the astronaut move toward the capsule?

  A small object with momen myleq/ za2rfoq3*t7d8tzy/ h c28lt)tum 5.0 kgm/s approaches head-on a large 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 object's momentum chat2 /yh 8/z *yfmr)c tetl az783qldq2onge?

  You (50-kg mass) skate on ice at 4.0 d( r4p 3m.)oob-bpdh tbsj7v5m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you col (so7 )b3p p4h.vrdj-5tdombb lide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right aloc +j k6*y-i bq9yf8 r9cbsr+ klys1sv1ng 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 total mome8rj 1kbfyc*y+sqsik 1 +y- bsr9lv 9c6ntum after the collision?

  A 1000-kg car traveling at u12hmpnn l oyrgv6 ty8d )6ect-q 031c25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick togcn1q1ot - 6 evrntlp8yu hdy) m60g2c3ether. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allow),zx8zg /t ( lwztdd0yed 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,8zt(z)t ld0xg ,wzyd / 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 hl9v,rac,u. 9/y7ml xy1ym lhhorizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lan7llhl/yy yr mah1 uv,.99,c xmds in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at thmyshe 8-4g) lzov9u r56tiyd6s wwu//e rate of 0.80 m/s (with respect to the log). With what speed does the log move, withd/v gue -rytm/9lwhsy65s8uzw)4o6i respect to the shore?

  A 4.0-N force acts f vqrwej.m/ 4a9or 3.0 s on an object. The force suddenly increases to 15 N and acts for oe4.r qvm wj/a9ne more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0oc bc+f2tlc*v:1isf06u; a u .;mxwzy s on a 6.0-kg object. What is the object's change of velz6ubv.x u: c;2*10mtfca; ycl f ws+oiocity?

  A 2000-kg car, traveling to the right at 30 m/s, yp6(ea*ve b7o;7px- hz0l es+xme xw(collides with a brick wall and comes to rest in 0.20 s. What is the average force x(lwxyb-e(ee ;7zspx67h +m eao0 v*pthe car exerts on the wall?

  A 2.0-kg softball is pp vy ws(*qdyuj3la6 yvn5u 8)/itched to you 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 f5/yny(6v )dyqp vaw l3usj*u 8or 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. The s(z xg kx8m.0d8g yl8bupeeds 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 tablmd yxgkb8lx( 8gu.8z 0e top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bulletor zz8+,n sqg(s, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exeq8n(+ grzzo,s rted on the machine gun mount?

  A fire hose is turned onqii 2 *+cnan6a the door of a burning building in order to knock the door down. This requi aic6qn 2+a*nires 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 doesn't bounce back?

  Water runs out of a horizontal drainpipe aty9g vz4u /r cigbj0*e9 the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exertj49gi/gurybvcz*e 09 on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 4u+p4zhwwrx -rz-s6r4d-l h at;u-c/s0 m/s after 3.0 s, when fired straiudws+lxz p/h-z awhr -r -6urs-c4 t4;ght up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initiallsw4 i2sggrz/9wz2iz/ y at rest in outer space. They push each other apart. What is their separation after the lighter astronaut h/2sz9i2i rw/gzs gzw4as moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides j0 yj37ems 9 k*cb ulhhs6:gg9in a perfectly g*9j0gj lb 3 yuchs :e96km7hselastic 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 the +x direction maiji-zhhopahf v3ck5d:0 /k 54kes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object afterkhhf 5vdpozi3 hcikj/ 5a04:- collision?

  A 10.0-g bullet moving at 300 m/s is q 3 xgee e8f(n uvrme2:4b0;ysfired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get e(u30;m e e:b8 enq fxgr4yv2sembedded 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 struck2xbn 1 c;b/uq1hg.gf6 dgsn4i 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; uxgbicnhdq64 g/ gn1. b1s2f 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 mass c:gtq0( 3vg yc100 g. The collisiggq:c(03t c yvon is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m0x(xq 7v8ud87ob8j : ehtkrkbfyzw 9: /s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elbk9kd 8(fv0 x h wz7q::trb87eou8 jxyastic.
(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 head-on wix2 o5xufw8 yt4th a 3.0 kg mass at rest. If the collision i5 4tw uo28xxfys perfectly inelastic, what is 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 xzdeiu(. ,i8:,h; jfiuq xht9nno i15head-on in a perfectly inelastic collisiox;neiiifuu.z5h tnd,1:,xh9 o ( jqi8n with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked stationc;dc:s:.c6ysrw* w xf wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energys;:cr:s c fw*w.6cx yd is lost in this collision?

A 15-g bullet travelield76f z,3hx 0vxp;txng 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upward.phx6dxl7 ;3fx te 0,vz
(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-im d2l: 3y ,ythery6w+kg car traveling at 60.0 km/h south. The two cars stic,w+ed my l3hyrit62 :yk together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling +9*txgdek:g,w vm p:hat 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 v:k+ge9dp*,h x:gwtmcollision. (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:9ak u l. 6n7c;o5kzaaqd g6ii g3cq3o moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. 3zdao gca;65i7n qalk.qi3g uko6c : 9What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocityp2-oh p9l1 khd of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a spp1h9h k-2olpdeed 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, and a 10.0-kg mass sits at x = + 21.0 e gsquzlby/8 p-5 g1 q+pkx*e9m. Where is the center of mass on t-gbs *yx 9l8 5qq1z+pepkeu/g he x-axis?

  The center of mass of a two-partx kc9k(jpzx(v9c2y i:icle system is at the origin. One 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 9xci2kjc9kp(x(zyv: 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at crd d58c*f-ac(hyr tc ob 3/t*(2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the ce-df c/rhd(t*yc rcc85oa3 *tbnter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locappqpa54uo4*;v wj7x gted at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the ugpp;q4v7w pjoa* x54center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and fb:* 1 qoh*x needc2tni)ig. s.*dq2sa 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 mass of the system of three masses being located at the origin, ( h.qf2ie2)d*os*b exgt n*nc1qs:i. d 0, 0)?

  Use Table 7-1 to calculate the position of the CM of-tnr )3q -8ficqzzcyrv 0 kk82 a whole leg including the foot when the leg is stretched straight out. Assumqi8 ) ycrk3nv- k0cr2f8z -tzqe the person is 1.60 m tall.