What is the SI unit of momen bk64p7cu)olwf,-tl (yx7qvzv i : +jhtum?

  When a cannon fires a cannonball, the canj- q6:459 (i wm-:xjkalctd lmh(gxh znon will recoil backward because the

  A freight car moves along a frictionlcy.bl 18xgvw( pbg2.ub/)vbkess level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the c8 /b(gx1)uw bk. g2pc.vlvbbyar?

  A child falls sideways off a sled while sledding on frictiobsnh4g-bbi3lh) s f(-39yu epnless ice. What happensn)-fusb hsgh9 l-b3be(3py i4 to the velocity of the sled?

  A rubber ball and a lump of putty hamsxha,l*2s r9og*5 lqyo oh5 .ve equal mass. They 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.ool5m rl* y,.gqh59oxa2hss* Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum egaauw;) . kout-r4;7yth7 kfj x5cz7p. How would you represent its kinetic energy in term5jh-g .77; aw xueck) 7tfroa4ukyz;t s of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prev1.(ay - jm;q tezqqfs(ious pitch, the magnitude of its momentumqy -.m(qae (;sj1ztqf is

State Newton's second laz-mme i,)egb+ w in terms of momentum.

State the law of conservationb q(rz-(g;umc of momentum.

  The area under the curve on a Fn2 w z6t7d0q;l6o sdqxorce versus time (F vs. t) graph represents

  Which of the following is an acvx.d*ap 3r:rkvymf6 ;*6z xm qcurate statement?

  A small car meshes with a large truck in a head-on collision. Which of tl3f+h kg1/rix*16mq; 0dm ascgbxix1he following statements concerning the magnitudeh/mg3i+q x10b*kli cx1 f;rxm dasg16 of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are droppe:ntelt 4vcq k9ljcy:.dx.0 :bd from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to th. . jcqb nk:lyl :c4tv0x:te9de 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 stationary h.c73ixwm5 a zbowling bachx.5mwa7z i3 ll. 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 collision?

  Two objects collide and bounce off each 9 bh)p-xwxls /other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 woc,+ pq6 6zes-ex:z cm/s. It collides head-on with a 6.0-kg object moving to the left at 2.s6 qzx6: z-ceeop,w+c0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 z ;el/zt)g; yxtho7 ahfqe/82vqy (1wm/s tackles head-on an 80-kg halfback runninyteyzw2x;fz)qt eo/h; a/g v8 h1q7 (lg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, tzb.wr ba3:9 obhen which of the following statements is true abou zbrb.3b9ao:w t kinetic energy?

  When is kinetic energy q fu*fe+ne 0a1mmpt -uz(l;3j conserved?

  In a game of pool, the white cue ball hitdu7z6x-ifd)2acnkcf7. vnexg; z,i 1s the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collision isvkfxx 1 . 7nz-i ac2dgci,edunzf;6 7)

  When a light beach ball rolling with a speed of :i3js uutq5uejel;6i 1+*j p b6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, app*: j16eu isq;j+ u5 pue3tjiblroximately,

  A golf ball traveling 3.0 m/s to the right 8k4mwj dk 4gjh1*,lcnk(mg ;kcollides 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 immediately after the colw4;1*8(jhkmdk gkmk c,jgn l4lision is

  A rubber ball with a speed of 5.0 m/s collides head-on elun u )rx*/z.wrlh5i*nastically with an identiuw*) *rz5./ri lhnuxncal ball at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light objaq(pz 3m3( 1zn dnjbe6ect at rest. The cjna (m q 63z1n3pze(bdollision 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 movi5 v1cul * 62e2qaqaux h(+kkuing with speed v collides head-on with a very heavy object at rest,u6*lxa 5ke+c (auqu1k 2vh2iq 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 velo9t a + ,de)qim2dyq m.ere2y2vcity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0q ei9) 2.+d22y qtemae yrdvm, m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving wi aj d7.58hlftbth velocity 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 li.ha58dbj ft7lght object after the collision?

  In an inelastic collision, if the momentum is cpl+.+s-cv9goj- jf bmonserved, then which of the following statements is true about kinetic-.cpb gl+s jvf9j om+- energy?

  Two objects collide and stick together. Ki4ehk9ty7 ju-zamm mp4yq npb * y8)/5dnetic energy

  A 3.0-kg object moves to the right at 4.0 m/s.dd * 3zjlro :en((u6zl It collides in a perfectly inelastic collision 3 de*zrz(dlj6 no:(ul 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. b s 963x cr5 qeff8rp.:dkok1d Which object experiences th9c d k :k8o1s 65.3bfrpdqxfree larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball aw*b9 qh,gk+pe-ds.m k y6pi 2hnd 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.ztl .7j)td*b c Which of the following statements is false? 7tbl.dzc*t j)

  Which of the following is a false statec rim12 tha*w/y1+b jcf lts5nl,r64ament?

  Tightrope walkers walk with a loxn*1-)xc wgmw bphh/7 ng flexible rod in order to

  A plane, flying horizontally, releases a bomb, which exp (6n c6kyq+j3-lolyv qq 6cvn-lodes before hitting the ground. Neglecting air resistance, the center of mass of the bo v6 3c qk+qvqonn6ylc6y(l-- jmb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The u.2 fyz h.okk;collision was completely inelastic and both cars quickly ch;fu k..y2kzo ame 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 particlesvo6z:u8ta; le .

  What is the momentum of a 2000-kg truckkzpl88(zkwx l*; :khc traveling at 35 m/s?

  A 1200-kg ferryboat ionl(eaj.-w.+ 2x o*v; uzuzkxi:u g5ys moving south at 20 m/s. What is the magnitude of its momu.xz5lyo.uzi jkw og*-;e2v:+ x(n auentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it s vm2m pw6gavg3i*/t6w trikes the grou6p2v m*mg/tv i63 agwwnd is

  Two identical 1500-kg cars are moving 4.uneysj9l ous5)1ahn-c* hfperpendicular to each other. One moves with a speed of 25 m/s due north and the other mova)fss uyn.n-hjo1l ce4* 95uhes at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, tratrq*29+aace tr1 yy 5mveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the changeermycty q 2t5aa9+ r*1 in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed i(hb*5e: i */ ccytgplof 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of c tclb* ei (/py*gi:5h18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on 4 qhytgn,.g :ka frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direct4.yn :thq,kg gion. What is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the sps(f4g 4.mlkdrace capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws hilgsrm 4d(4k.fs 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 o..rr o pa-(j r9i/edbapproaches 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 rioe(rdo 9/aj.-rb .plarge object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), +8flrj)6mko9gx7d 0fkz8iad 7 n 2vwzwho is standing still, with open arms. As you collidedig+9mdran7fk )7268o8wlzv0 kfx zj , while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the ,uu+us7lowm- hux 59vright 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 is the uv-+o 5x9u, ulshuwm 7total momentum after the collision?

  A 1000-kg car travelingk- j9v -ibv b87anon2f at 25 m/s runs into the rear of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the collis28nfba v k-vn bj-i9o7ion?

  A railroad freight caa d*3x 4ymr0blr, mass 15,000 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 speed of tadrx3l0y4b m* he two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a h-prm6d+qq2( pjrdzq3 x(mb53yy hkm,orizontal track with a speed of 10 m/s. A 70-kg stunt man dro y m3rm( pqpjx2rb,q5hq-kyz+3d6( dmps 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/n,f 6kd d71mx:hh+4mp +aponbs (with respect to the log). With what speed does the log move, with respect to t m,a dnf 46mxh1d +n:poph+kb7he shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15 Nw4w* mi6t31vicp m3sk and acts i wkw4vs3i63 tcm1*mp for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acteu h* .ra6ymk07 2efgms for 2.0 s on a 6.0-kg object. What is the object's chang0ume7 hfk6 e.2gy *rame of velocity?

  A 2000-kg car, traveling gj2gb0dx:t w (3d- 6ptxe;qsn 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 exerts on the wall?td-t:e 2bw6nqg 3;sxx(pgj0 d

  A 2.0-kg softball is pitched to you at 20 m/s5005r/t+ izk3mk p h*vtwa jkb. You hit the ball back along the same path, and at the same spj*5t0rz /t3 w+km5 kk0av hbpieed. If the 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.lb k vxu9a;e2. 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 0.15lue ;a.k vb9x2 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 velocps+6ezi2cn r.q1e- q fid2nmj ne;* )qity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mou ee*d prq+f;n2eq2qn )16csi n.mi-z jnt?

  A fire hose is turned on the door of a burning building in order to knwce- f)t a9wy(io9 ei4ock 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 strea- (eitai94wwcy9fe )om needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg peuci4 -ar48vsh 42)*ssrbqvtox aw2) nr minute. It fssv4bqh)2ur2)4- nat*c 4vwixsar8 o alls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velo ryd;3cy( h*lmcity of 40 m/s after 3.0 s, when fired straig;3ryy dc h*l(mht up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initial;t nbpx jj6l5be0qj1 -ly at rest in outer space. They push each other apart. Wltjq ;bx0e65nb 1-j pjhat is their 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/ )dynde3n(ps /s. It collides in a perfectly elastic colls/ p)3n(edydn ision 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 ipsz6*9zh h qz9n the +x direction makes 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 after co9 zsph6q9zhz* llision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at resthc32vc,n 2 rnj. The bullet emerges (the bullet does not get embedded in the block) with half of its original speerj, cvnn 2h3c2d. 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-particlee96.qst5isfd 9y0mf spx qg: * (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 thes. tpyx9q6e*d5g0:is f fqsm9 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 masqeo0c.o.,hp mrak x *8s 100 g. ,c.kpo *xaeom hq 08r. The collision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with,oqt.m 7lp 2nzk92s lc a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly ela m2ksl2l7ot ,c.pqn9 zstic.
(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 aj3ztkt :g7 o /l :ovb(::.4en uzqpzws speed 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 masstvo zl gtzeb oj ::(z7pn:ksw/. u34:qes after the collision?

  A 2.0-kg mass moving to the east at a sx-2 s1esg,4pl fwaet50:ug s/bb2 mfwpeed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass we ugf4s-0sat mw :,1fl22eb/pgx 5bs. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station waggr7uoun54q0 v on, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of truo4vn 7 u5qg0he initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 mza( 3 h;-b r1+wv8 ; isii2rghyaedn)z/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullr (2vz byh;nr1wi; e3 8-aaig h)sd+izet/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 3000-kg x) j /*56puy vv+zmia +qpse-jcar traveling at 60.0 km/h south. The two cars stick together after the collision. (Seeavusp6jq /+jz 5)mpiveyx* + - Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-k3m/vx:,(z t+ yl*kejlh m1 xdwg car traveling at 60.0 km/h south. Thvm(e*:m,31 /lxxydw lkthj+ze 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 surface. Object A moves east with a 5mz w8 geov397z pz7jd8fo3c leef:d40yeg m :momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude o :zf:v m7deemwoy d jlzzofg ee5c388p907 34gf their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocits/ ;/7guzsb 2m u9tcovoyc-0 uy 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? (Neglect air frictv-omsy o9b; scc tuu 0/z2g/u7ion.)

  A 4.00-kg mass sits atn7ooau73sz* s the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centezosn7u *37s oar of mass on the x-axis?

  The center of mass of a two-particle system is at the origit h8i*1mi3 dnx,i;oon ,g jy5sn. One particle is located at o1o n 8,hi *s iitdjy,x35ng;m(3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as folvv)2zzz l/wlt ml2v85lows: 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 o25vz lv8tz )mzl2l/ wvf the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 miuvdb,)gf3i 1zb mg84 ), and (2.0 m, -2.0 m), respectively. What is the location of the cente43gm bui 8 d1ibvfg),zr of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and-gah;:.r+ t 9 nihlkhm a 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 sysan.rtghim- l 9 k:hh;+tem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg includ6er oabf*tk(mumy o9.rj8w/ 7d*og4 ding the foot when the leg is stretched straight out. Assumboyt okw748d e/o9aur*m6*j.f g( mdre the person is 1.60 m tall.