What is the SI unit of momennj cw1xtvggn3i,x -e (xl .r/7tum?

  When a cannon fires a cannonball, the cannon wilv:a4gbc euln89zn5 h0+z j: qnl recoil backward because the

  A freight car moves along a frictionless level railroad track at constant spetv1-s t.lqlogx a )*)eed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the c xe) lv)gtol.s*tqa 1-ar?

  A child falls sideways off a sled while sledding on frictionnej:(kv 5qg( ;ugg7u2xn9 kvwless ice. What happens to the velocity of the sled:gnuvgeg 95 (kqx 2( j7;wnvku?

  A rubber ball and a lump of putty have equal mass. They are thrown we1dq2x8)ai j 3w xl+wnith equal speed agdwx2x wl+in8e)31q ajainst a wall. The 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 i(o krxp,2o, b2y6,mpt6l ic yys moving with a momentum p. How would you represent its kinetic energy ini2 k 6tcyl ,y o(26yor,mxpp,b terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gaveyq;qicm j u86c68p)db it in the previouspuqqm i8c);6b d68cjy pitch, the magnitude of its momentum is

State Newton's second law in terms of mrlgfyb p*q4 z4w p;-d3omentum.

State the law of conservationlu rm49n u5yd 50md3wl of momentum.

  The area under the curve on a p9q:sov :2 )+mbfcjmk Force versus time (F vs. t) graph represents

  Which of the following is an accurate stzh6j.vwj rjpy a8b /3(atement?

  A small car meshes with a largf k5mpq/lvk rv95 0o+xe truck in a head-on collision. Which of the follo 5 kl5v+9q ovk/xfrpm0wing statements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and thz ogo 54nq7tnt*(+ -3sgtjf use other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse during its n7o5*s tqgjn3+ s4zfo(tt-gu collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, rxoo r 4-mer-:collides with a stationary 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 imr :roeormx4 --pulse during the collision?

  Two objects collide and bounce off each other.sv;ad hk240q ayx8 .zb Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It( b2nno8xg1 hj collides head-on with a 6.0-k8nb1 2n(johgx g object moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kc;wz* oo*u pvws/dzp lkrn :d -y++s4*g halfback wyr v:;d*z ++n lsozsoupwp4-k* d*/c running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momenct5ron ;.r a1ptcw:/btum is conserved, then which of the following statements is true about kr5ba/n t .;rtpc:wc o1inetic energy?

  When is kinetic energy cons/,fgdr 04vzxb mf0-rx erved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 h4pmqs 7tac2 hm fh:;*ball moves away with the same vhc 2 hhs4 :7mqmp*;fatelocity as the cue ball had originally. The type of collision is

  When a light beach ball rollind7.ab,(yja tmx) 3l kig with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collisi3a.b y )d,(ilxjt 7amkon will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides nc (86 evk8baz,u4mh:pur l*gin a head-on collision with a stationary bowling ball in a friction-free environment. If the c,ug ah4p zb *k8n6l:cmr8 euv(ollision 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 collides7i6 lghc/v) bln(p,wz head-on elastically with an identical ball at rest. What is the speed of the ini vwlzp/c6h(g bl)7,intially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on withm y wl1t/zq85b5eop0t a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light obje 8055epottql ymb/1wz ct after the collision?

  A very light object moving with speed bb7qquud853 o v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collisionq5 uub7ob3 8dq is

  A red ball with a velocity of +3.0 m/s collides head-on withst, 4g;05 oxiz3 xbymt a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the colli; 45zsbgt oy t3mxxi0,sion?

  A very heavy object moving with velocity v collides head-on with a5 izfwgu5q aae 337+ep 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 3p+7 qf5 u5e zwaig3ealight object after the collision?

  In an inelastic collision, if the momentum is cof)j, hf1 5dl-6ucklw g f*0htpnserved, then which of the following st-6fw0fc*)h5 p hl1j l,ft dkugatements is true about kinetic energy?

  Two objects collide and stick tf)ads mss: l7.kckg,ncc7s m*8h)a / 0euf3jjogether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a f/)cxtir3d ar0 2 2pbhperfectly inelastic collision wit0ftxd 2a 2r3 c/rpbh)ih 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 wi76eo uoshs5b +s nnt2*2ad;b , hrlql:th a large object and sticks. Which object experiences the larger q7h 5nosusbsrbol 2 hd 6nt2l,ae+*; :magnitude of momentum change?

  In a game of pool, the white cue ball hitw3cgy--u ,v ims 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 stat0u wv5;lf/aocements is false?ac u;volfw/0 5

  Which of the following is a f5r14ohvq*yzoo p 18egalse statement?

  Tightrope walkers walk with a *p m0 ict-fe6hlong flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting tg3 *xy6 5a/(bcakao u01yz14ljec mwwhe ground. Neglecting air resistance, the center of mass of thel*a1/wc we 64yam0o5x (zgj1kac b y3u bomb fragments, just after the explosion

  Two cars collide hea/5/god2u fvh3tizpa e e3x*n,d-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest durinx*t z/oe p dgu,/ih fe5a2nv33g the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a syss7 usvbxp562 ptem of particles.

  What is the momentum of a 2000-kg truckp bx -ghsueu.ws+)y3bdui* 6; traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of ;ikl9t kfe99 lits momentu 9l9ekflkt9;i m?

  A ball of mass 0.10 kg is dropped x byl0633 q.ls-ds vfcfrom a height of 12 m. Its momentum when it strikes the gr3clq6f -0s lbx vys.d3ound is

  Two identical 1500-kg cars are h6,luz wix3.yv/q p; qmoving perpendicular to each other. One moves with a speed of 25 m/s due north and the other mlzq u6hxw.qv3piy /, ;oves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, .r ,unnlv:bdl nxq: et87dk33traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the q3n. 3lu:,k ndl8bd rn7vtxe: momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a r ta p4dd;pb2q4nlk 5z/acket causing it to rebd n/pk4plda;54zbq2t ound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) 5ap -pw*56bguitk*ti is placed on a frozen pond. The machine 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? (As-pt 5kb6iw t5gua* p*isume negligible friction.)

  A 70-kg astronaut is space-way:az u uup,.6hlking outside 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 space hammer at a suyh au6, z:.pupeed 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 headledcc 5 e;3z:n ou. b,;gdn3gw-on a large object at rest. The small object bounces egbc5c uo3:l ;.d;3 e,zdngnw straight back with 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 yo 96bydr ;sdv;)vual f1n.7elaur friend (40-kg mass), who is standing e;6dvfval .b91ly;u)r dnsa7 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, st*vv-, ()j-bt quaw7)nz ftej1 p;y uaaraight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of maa, jv upj(z)y*-aet;qnbv17u)-ft a wss 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs /c il /,wprkoi .6/tdcinto the rear of a stopped car that has a mass of 1500 il o /6,t/.wr /cdpkcikg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 1e4ku 3b8ie ,sb5,000 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 the two cars after couplin 3bs,ke4ie8bug?

  A railroad car, of mass 200 kg8z;ozxjas / /i, rolls with negligible friction on a horizontal track 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 aj/s/ ao8;ziz xfter this happens?

  A 60-kg person walks on a 100-kg log at thex:-a1*ayukxqc h*g8 h6*jsrph) 9lct rate of 0.80 m/s (with respect to the log). With whapqjy xa-6h*chc9t8 l sx*rh: uga1)*kt speed does the log move, with respect to the shore?

  A 4.0-N force acts for 30qshl; s0 +-:cqpl9cghl;uz mf v4c5yc66tc a.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces t -ylq sv60;chm9zplacc:5u;4+chgc qsl6f0 to the object?

  A constant 9.0-N net force acc:ipi*i*:4m*b 6k enolvjdm,ts for 2.0 s on a 6.0-kg object. What is the object's change of velocild*cpik6,no *e4*:mb j:imvity?

  A 2000-kg car, traveling to the right at 30 m/s, collidest,u6ywzi ygja+ +.*dy with a brick wall and comes to rest in 0.20 s. di u+z,y+wgat*.yjy6What is the average force the car exerts on the wall?

  A 2.0-kg softball is+tv,/ y-rn+v t4idl tl pitched to you at 20 m/s. You hit the ball back along the sati t4+ dnl/t rvyv,-+lme path, and at the same speed. 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. The speeds of the bal 9z)4- y ehgly)kh9upal right before and right after hitting the table top are 5.0 mghe a)k)4hzup 9- yl9y/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 50.03 ;j-jm,xzwc,cng3fc-gram bullets, with a muzzle velocity of 750,fjx3 3,jzcnmcwg;-c 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 order to 1c3w wzs/e oqiuc+3vty6 ha )q.y15yhknock the door dowa5w he t+.c1/su6)y o3w qhvcqiy z31yn. 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 doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 z(wqso hq./:j. )0ifteduse 5kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average foreio)zwq u0e. j/(5st fs:q. dhce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a ve4bv jnvm wp**, 9t)obmlocity of 40 m/s after 3.0 s, when fired straight up. vpbn wt,*9 bj4mm*o v)What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest inbx7hcxl)e1)q+,z vew outer space. They push each other apart. What is their separation afq +ev1hwzl7 xec ))bx,ter the lighter astronaut has moved 12 m?

  A 3.0-kg object movesgf-b hs 4 ke(wlxalcb0 e1gq.yti.8+/ to the right with a speed of 2.0 m/s. It collides in a perfectl/1e4shl.(e xb yw qtcl8. +gf k0i-agby 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 collision?

  A 0.10-kg object with a velocity of 0.20 m/s in po/xr e;ah;e9 the +x direction makes a head-on epehxo9a;;e /rlastic 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 30w a3rp2oi-) qo0 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half qoia2r o)-p 3wof 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 (whicavl8 t;an0/; rizc )ekh,v hg0h 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 n,g ;at/c);hvnr e8 lz0aki vh0eutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball ofuinjdr5d he0pd/2.f2 mass 100 g. The collision is elastic. What is the speed of each ball immediately after tf02 p5 hu neddj.i2/drhe collision?

A ball of mass 400 g moving toward the east with a spah9r8ybay8 x)eed of 3.70 m/s collides head-on with a ayh a9 r88yb)x200 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 zhr/wz. ht 4o;. , d9sxe*uwxbof 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the tuh.;.zx,o/*h e4 9dwxbs zrwcollision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a ss ;j:0;zi hm mztm(2bspeed of 4.0 m/s collides head-on in a perfectly inelastic collision with a statimi;j t sm:z(sb2mz;0honary 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 park3 dr 0qukh*1mm b2ub9ted station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic enemm u b0r1k*hu9t2d3b qrgy is lost in this collision?

A 15-g bullet traveling 213 m/s i+h8g3 pk+vrivc 61och)ivw )bn a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block co vc+p83h)i+v g woh61irc )bkvmbination 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 a9)mtfmg,z, va6 nxh p-t 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togm,pv,)xt 6az-9fhn gmether 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 eas vt3pai4p)q6e6c)ex yofl3r2 t collides 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 motion of the cars after co6op4e)3 qe al3x6f)i p2t cvryllision?

  Two objects move on a levell;jf nb x(6iv, frictionless surface. Object A moves east with a momentum of n jxl,i;(vf6b 24 kgm/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 masw kgjor:zvqn8 335yuo u7i 7/rs 10 kg, is moving toward the North with a velocity 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 fra33w5 zgjv /7o ruy8: knriq7ougment 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 9v6*sve-4 kggrhk 4*p5hk fbkat the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center opekskv 6r-gfv*4 hhb*g95k4kf mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One pa/re,u8 x;o 7 dzc -oh(a.xv+j *uelpcnrticle is located at (3.0 m, 0) and has a mass of 2.0 kgx -ue(/nadx h*p,j+zo.vucc e 7;o 8rl. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as folluequnm;/cfygr 4n(g :q1 h s0-b3x9uhows: 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 of the cen huq/ xng1 uhq-:;ug y(rcbnm4039fester of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.m2m* z7*gse+g4 go7jxwd jxt aj58wt90 m, 1.0 m), an+doztet274g5gj jm*m8*x s 7gw awj9xd (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 1ht t.(woc:ohpt5a:y; rn5 h)b .0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mastcy :aton)t5rb:hh w.h 5o( p;s 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+q1jy0un9h6x (hpt sp the CM of a whole leg including the foot when the leg is stretched straight oxsnq1hjpt(h y+p096 uut. Assume the person is 1.60 m tall.