What is the SI unit of3t h2 xdz8nxhn* a1m:ls6 xs3m momentum?

  When a cannon fires a cannonball, the cannon will recoilau;e nuzt:7e +2xfvji j a6xic2/7l2l backward because the

  A freight car moves along a frictionless le (u1ou+k m8p7xxpebrcl o1 4.nvel railroad track at constant speed. The car is open on top. bx po m uuknrxe4 .81+1(7ocplA 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. Whate;co8*sewz um 9 q(opo07h0 cg happens to the veloc oc;8e(z0oswguh mo qpe7 c0*9ity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrt:jce5 p*:ku1e 7lyarown with equal speed against a wall. Thep ey7:r5akj1le uc:* t ball bounces 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 p 18aj0 bd,8gv+kfelpmomentum p. How would you represent its kinetic energy in terms of these two quantitie a8pke+g8 l 0bp1vdfj,s?

  If you pitch a baseball with twice the kinetic energy you gave it in q7iwolj*or t048nr4hthe previous pitch, the magnitude of its jh ornlqi7r8* o0w4t4momentum is

State Newton's second law in terms of momentr w be+ jm-/q).yfupt1o nr-m)um.

State the law of conservation of iq z4v:afc3la6sj /c0;o r b8mmomentum.

  The area under the curve on a Force vb46uj a2vkvrh93s+/h vnj c 5wersus time (F vs. t) graph represents

  Which of the following is an accurate stam++t xsq7f s(0 gwnh b.ii6b+vtement?

  A small car meshes with a large tr)ay3j-0zcu iazqx2 1x mc81u uuck in a head-on collision. Which of the follozu x121q)xu c8uiza 0c-a3ymj wing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the8iy*0p8f w/v 0o) spycbrd z:u other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a hi0izbuw8 *d:/rv8 )so py0yp cfgher position. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east ::ygz5 y8k j3z2 wpwui+nx.b 0aid0kaat a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces yg:d8bwx+k3wy0up:0j2 i.aaz5izkn 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 andnzq,7 tc3,gfa bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on witd,wdd h m0c;w8o y+iv*h a 6.0-kg object moving to the left at 2.0 m/s. wd d80d,;vy+ *miowc h Which statement is correct?

  A 100-kg football linebacker +(:ppbhs *www moving at 2.0 m/s tackles head-on an 80-kg halfback run+ w*wpp hbw:s(ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, 13gpz8 )cvwskm2l mh4s jd;ulmdd1 .5 then which of the following statements is true asl51dgmh;ul) 134 mcdmk j8.dpsv2 wzbout kinetic energy?

  When is kinetic energy conser oo)sk-4v epg,gib4)hved?

  In a game of pool, the white cue ball b.baxj: y1kzq12vg1 ci-r7z;a -lfzmhits the #5 ball and stops, while the #5 ballzv ;ryxz1bc-7qj1i:2gl.z fm-aa k b1 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 collides with a heavy5be.n+t2hz5 fd4 ovrm exercise ball at rest, the beach ball's speed after the collision will be, approximatedenbor+. t2 mz55h4 vfly,

  A golf ball traveling 3.0 m/s to the right collides in a head-yv op g25d)q;non collision with a stationary bowling ball in a friction-free environmento52; vgdnypq). If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elaspa 0m-9h9ex cta/ elb8*2u pcjtically with an identical ball at rest. What is the speed of the initially stopped bac8jpbc uhx/02p*9-mt ea le9all after the collision?

  A very heavy object moving with speed /nvizy*s5j4rq1i oa+ v collides 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 q n*i/v4sr+1yi5azo jspeed of the light object after the collision?

  A very light object moving with speed v collides heaxx;a8o ; 4sn1efwq exkh d*p20d-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heav 1x0ka2 q8fdx; ne;e4*ophx wsy object after the collision is

  A red ball with a velocity t-- l,0zxz7j7poo mof of +3.0 m/s collides head-on with a yellow ball of equal mass moving wlf7z-mj px7ztooo,-0 ith 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 collides head-on witfd:c9i x2) rh983trd l -utqtm.ayf n8fjg0b ,h a very light object:3it0xy2g 9 8 btnhlf-tr )fc8,9frqj.udma d 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 collision?

  In an inelastic collision, if the momentum is conserved, then which ojf e*)n i1yq)( .bzsmhf the following statementsfesi(n z )yb).mj*h1q is true about kinetic energy?

  Two objects collide and stick tog /na s14adx9-zmi2ewzcq )x2rether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/ab hs6o+ jyad./t k7g: enbr h.pz91(ls. It collides in a perfectly inelas 71( dhtghbnebrp:/yj.k9l aa z.s+o6tic collision 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. Whhbrkq y-1+o (lich object experiences the larger magnitude of mk1-q rloh(y+bomentum change?

  In a game of pool, the white cue bad 9yk jnc:g7tzc) 2ad*ll 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 m8v( exfum;t;tfdd* o ;b.bd,y e5o,fthe following statements is falseb et*,;(dmf.me uv; d xb5dfof;8,tyo?

  Which of the following is a false statement bxfc 6rf 2wcf/o )(oj z4ui37s*fd5ntxj/zz2?

  Tightrope walkers walk with a long flexible rod ie8 j g2und+-mbn order to

  A plane, flying horizontally, releases a bomb, which expl6dk2f9 yl6oqip/lz k.5r lrl;odes before hitting the ground. Neglecting air resistance, the center of mass of the ydllk; o.lkq pflir665 zr/29bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free roadqt1tqa2-bnac9:yr -a 9zwz(o . The collision was completely inelastic and both cars quickly came : nqqr1a2 -zzt -(wabacoy9t9to 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 particles.1z7j;rpkwi6 v l5,*meyllj .o

  What is the momentum of a 200hb(391n1 nmr n(tjqs e0-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. g2qqul4+ 8t97h ;lrrgac 5 fij What is the magnitude of its mom;97rlau+ftq 2h 458g rg lqicjentum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it b q(:. wti(n)s7sk ;(mw qhzxlstrikes the grs7 twqb (xwzh.;(q k )mlsi(n:ound is

  Two identical 1500-kg cars are moving perpendic0afv2j7 qq.n 9 5+v(bgpdijktular 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 7 d9(5b+a q.jt nip2kjf0vqg vthe total momentum of the system?

  A handball of mass 0.10si:kb(i(l z hidx a:w8:2nv 5w kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in thd wi5a :vkw2l(ixh(8:szn ib: e momentum of the ball?

  A 0.060-kg tennis ball, initially movz1(5st c tndbs(pc3 :qing at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite dir :zs15tcn(c( tpsdqb3ection at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (exchlxr0fkgo;xal234+ cluding the baseball) is placed on a frozen pond. The machinx 3l4lr;h0k f gxo2+ace 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-walking outside+ojk 2 zg:tgszc7n s4 1wtm9*e the space capsule and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg spac 9j4z2tg gtc+ssk* n o17:emzwe 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 appr fzl)yo/-pal 2kjsbfix7;n )8( u4xmcoaches 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 chanx) 2 8zbio u;lcs4kymlx- ajf( )7/pfnge?

  You (50-kg mass) skate on ice at 4.sxg1f5- tej+fg m+ jt40 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you bm1fjjgs- t+g t5xef4+oth move off together?

  A car of mass 1000 kg mog e (pa5-7 otr7rtyi- fllm,+wves to the right along a level, straight road at a speed of 6.0 m/s. It co-+f,-ol7m 7 g perrlw5ya(itt llides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 mf2 kchce -6-nb/s runs into the rear of a stopped car that has a mass of 1500 kg and they6neb f-2hck-c stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a leveln*9ikgs-fn w 4le +sn2 track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second carn9 n ign-sfl se+*wk42, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolalqyu ui(; l/4ls with negligible friction on a horizontal tuq4au i(;l /lyrack 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 (with respect t n.rbut7sy(u2t1mc 7jox7cj6 o the log). With what speed does the log move, with respect to the shor 6 7usbrxt o7cmuj12cjyn(.7te?

  A 4.0-N force acts for 3.0 s on an object. The force suddenlt- ,mpfru2i6 jy increases to 15 N and acts for one more second. What impulse was imparted by these fi 6,jtmfr2 u-porces to the object?

  A constant 9.0-N net force gdplp m fkr131s)guej+6k1q+acts for 2.0 s on a 6.0-kg object. What is the object's change o1 6+fjk3g1up1m)eq +pkld g srf velocity?

  A 2000-kg car, traveling( ez1.jvxc) hjp.bj1n 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 nj.vz) ehjc.1(bp1xj car exerts on the wall?

  A 2.0-kg softball is pitched k/ *7n9q zqgja)/ifdt 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 for 0.10 s, wtik/qgn a)fd/*z97q j hat is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the balabh+plha agz0v)2 ,ti vj71 -bl right before and right after hittinh tiaal,07b-gz pba+) 1 jv2vhg 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 table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with b x5d2ai:1ng - e,o-af e vqu-t/b9dx/pr1 yexa muzzle velocity of 751pd/ fv-/- boq nur a5 gydxe:,a 2t9ixe1xb-e0 m/s, at the 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 building in ornqzg+w,6 4wtv der 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+4w 6v,ntwgzqtream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate owhy0e e871pbc k rt(r58zko fp.ea o)4f 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what averagh8a)10z(pterf4 7.epe8ko5r cobwk y e force does it exert on the ground?

  A toy rocket, of mase mc47ad2bkgd8uk- ) rs 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust g-ak4e72ubmdckr d)8force does the rocket engine exert?

  Two astronauts, of masses 60/j/ ur/xa6 ljc kg and 80 kg, are initially at rest in outer space. They push ear /jalj6xc/u/ ch other apart. What 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/s. It collides in a 1x h jedn*)r/pgr22at perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collir j2htgd 1p2xn/e ar*)sion?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction 7 vw+6 0.7 m.yabekcoiq/rbbc makes a head-on elo7 ya7b bewc+.vr/.0im6bqkcastic 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 *98(z a6 (pz) jbshczd kqr)lk 8y(ktgblock at rest. The bullet emerges (the bullet does not get embedded in thks (8lyz c8*)(a qdk bg6pk 9jz)r(zthe 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, isjay*+5a0n +wds trr/ o struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving aty ++rna0jao*sdw /tr 5 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 colds1ah3 o,h .x0rl q:xllides head-on with a stationary ball of mass 100 g. The collision is elashl3,q 1xx0o l.d:ra shtic. 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 3.7uy fy+k9ha4 njr36xi 40 m/s collides head-on a69rhfn3k +jyx yi4 u4with 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 head-on with a 3.5fw3lwzw g+m tpn9z/ n v02mk60 kg mass at rest. If the collision is perfectly inelastic, what is the spkwn60m2vw9g5p+nz m wtf3z /leed of the masses 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 per 97ps8g.sm.vap erry3fectvse9y spr8. pm3.ar7gly inelastic collision 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, st ooj (kr/jz+l:rikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the o/ j+ :lzkjr(oinitial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buri ,si :6d*h2hbarlj;ps es itself in a 2.4-kg block of wood a ri h,bp6;sj 2*h ards:lest 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 colu;u kngf1ndh9c7 61 kclides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision.g;161 c7 cnhkkun9fud (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east colsf2stwnf19- dk 4ws d+lides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after2fftsdnwdswk94+ 1s- 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.g(cuhqsqe0m hjc31x0wh ot5x/ +/ kr7 Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitutk q0ue 3 /sox/jm0 gch+17(qxcrwhh5de 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 m7tyjx3.s;dm jr , 0q ofo6av,x-y gi.h/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 ,djfh6rj xg,tx;omyo.s ya3.7-i0v q 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 vvp0cu0emtmm gv*iu rn5gf. e8u9:+,v6qfe), and a 10.0-kg mass sits at x = + 21.0 m. Where is the center om e vv gf698q5g*0eve):,fiu.u+ tp mcuvrn 0mf mass on the x-axis?

  The center of mass of a two-par9lu qc/2i w9eg9ufnmv;;t dy/ticle system is at the origin. One particle is located at9cegui9ld2 ym nu q9 t/fv;;w/ (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 follows: 2.0 kg at (0, 0), 2.0 kh v*y,t 1xrix3g at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of,1xyhx3t *riv mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (gh: b1hv qxa7h-7u o) izav-u*0, 0), (1.0 m, 1.0 m), andih 1 q7bhauovx h7- a*)guv-:z (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass .woyz-h xsnosxuj-p j92 xq/4 9r4 )ozis positioned at (12, 0). What are the coordinates of a 4.0-kg masj2 9qxz9-.nusroo)pj h4-/o yswz xx4s 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 the position of the *dwr-s ru0wr6 CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.60 m tr6rs0ur*-w wdall.