What is the SI unit of momentum?/u-3r*cdws1u o0amdr i .p ly,

  When a cannon fires a cannonball, the ca kgvv5+hd/m *lnnon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant spevm8lv2)0g1hap 2oyn.y wy3vted. The car is open on topaygpw2 ov208vy3m1y nlth). v. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off:t 3*hm-ah /kfmgrm.o +crs3j a sled while sledding on frictionless ice. What happens to the vert o -rh mf3/ cm.hajm:+sg*k3locity of the sled?

  A rubber ball and a lump of putty have eq tpg5 o5 pogp;d(5lw(iual 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 wallo; p p(pidol5w5t5gg(. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. ;. ) /gg/rsa5rsqodyr How would you represent its kinetic energrr )a5/o ry .dg;ssq/gy in terms of these two quantities?

  If you pitch a baseball with twice the kineti yr/cu2 yimjh:qb s uz136w6/rc energy you gave it in the previous pitmi yjz3y2 6u/usb wr6q h/c:r1ch, the magnitude of its momentum is

State Newton's second law h05bw rd*1o edzn,vi8y.a4n d in terms of momentum.

State the law of conservation of momenm0,yxs yzb)8bgzw1b +tum.

  The area under the curve on a Force versus time (F vs. t) graph represents pw3hrcv;z-v 6

  Which of the following is an accurate statement?/( xum 1 7uyue2;tdm0uoge/w+ ivg c+m

  A small car meshes with a large truck in a head-on8uu1+gn9 5vv pze lah(:reu,d15 e1tgoh cta - collision. Which of the following statements concerning the magnit8u 5 1tgvg5uaer+d:ep9c1tae,n o hhz1(u-l vude of the average collision force is correct?

  Two equal mass balls (one redir8a 9(cy(ghb and the other blue) are dropped from the same height, and rebound off the floor. ry(b8 (gi9achThe 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, c*bq vpc,9az3h4: dum yollides with a stationary bowling ball. The Ping-Pong ball bounces back t:yv zm,9u4dcah* b3qpo 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 other. Linear mom3pl ta) u:2 q,f5nw4f5z qgmqientum

  A 3.0-kg object moves to the right ajeyw8 i u3,1kat 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/w3y1uaj k8,ies. Which statement is correct?

  A 100-kg football linebarntluu 4zh 8f8yi 78q)cker moving at 2.0 m/s tackles head-on an 80-kg halfback ru u88)7 rl4z 8yiqfuthnnning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of t fdc,, h1z5so a94dvj9i nsan-he following statements is true about kinetic energy?zajn i d,9c4hof9nv s d,-s15a

  When is kinetic energy consen19 -fat 2lidarved?

  In a game of pool, the white cue ball hits the #5 ball ab )0suoln:d 7und stops, while the #5 ball moves away with the same velocity as the cue ball had originally. Th ous bd)l70:nue type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collidv0 r;hjt .)kjtes with a heavy exercise ball at rest, the beach ball's speed after thk.0rt tjjh ;v)e collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on coll;qf1a+74 dftlw77 mgh.l irzu ision with a stationary bowling ball in a friction-free environment. If7 f7mgq4;+afihltdu7 z lwr1. 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 elastically with an iwasis /0xv-uvvq 1 3 of//d6jedentical ball at rest. What is the speed of the initially stopped ball aftq/x aewf/j3i0v/s6 uvsdo1-v er the collision?

  A very heavy object moving with speed v collides head-on wif )tuz(a2tcs:v 3h6r.:d sjdkth a very light object at rest. The collision is elastic, and there is no frictiovka.d(6j)uc d2s: :hf zs tt3rn. 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-on with a very heavy ob; )zb mqco7i+ hhk4/qr qgh.r-hms75nject at rest, in a;z c4/-+qhr.qm 77h5s nimbk ohg) rhq frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3/6ho;yhf.t f s.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow bayfts/foh h.6;ll after the collision?

  A very heavy object moving with velyk +34frswn; ypr/b4o ocity 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 +yo;3ryf44nr/ps wkb light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of thcyc9a .yko 9oltegqpx;2f )t.; y(9gte following statements is true about ki ;;2y )c 99tpcgokoqfey .(gya .tlx9tnetic energy?

  Two objects collide and stick twaq t .. t3d(q;wkwle;ogether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. Ijd749 e -+nxpehtl )oft collides in a perfectly inelastic co4) lo+7-t 9exedpnj fhllision 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. Which object exp9gm5rp k.g3m+ y,hbbqc1zf o6 j76pq js+d0d meriences the larger magngmh3+f1+cp .d70b6b dg,9pyr z5ojkj qq6msm itude of momentum change?

  In a game of pool, the whidcm4for q n7(e564sf ute 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. W ypj9/z, a opv)s-(l1us -8oqew7dfzyhich of the following statements is falszpqau7/,9)- j8f ov(sy1dpw y os l-eze?

  Which of the following is a false statemenuh/(6 y1gf mj*ex 7p(3jmfw7 ew8 jzxit?

  Tightrope walkers walk with a long flexibleyy4ak.1gklp9 rod in order to

  A plane, flying horizontally, releases a bomb, whic/n- :beqth6 edh explodes before hitting the ground. Neglecting air resistance, the tneqeb h6d: /-center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. T o1l5 i08 p*zbowzg7kqhe collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's cenwqzp* 8kb5o z7o il0g1ter of mass?

State Newton's second law for a systelphuc7t,n1wqq25 3om m of particles.

  What is the momentum of a 2000-kg truckk8m6k fcn (b*o traveling at 35 m/s?

  A 1200-kg ferryboat isomb 8k2ocv 0,p/up s)z moving south at 20 m/s. What is the magnitude of its momentum0os p,vocb/z kp)m u28?

  A ball of mass 0.10 kg is dropped from 8( rmnrkv.*)vw u8b zma height of 12 m. Its momentum when it strikes thevkmnb8 )r.* (mzu8vwr ground is

  Two identical 1500-kg cars are moving perpendicular to each other. Oneo*m t2es n:k3mstkpqk .*8h5g moves with a speed of 25 m/s due north and the other mpm n eg3s5hq.:*k sk2 mot*t8koves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wall and,bavk-aj 23ip rebounds at 24 m/s. What is 2p bkaaji 3-,vthe change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is sj4osgu5r9 x )ptruck by a racket causing it to rebound in the opposite direction a4rxsu9 )g5 jopt a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the basebasy4r1qa kfr;dy (m ibs 1rq,28ll) is placed on a frozen pond. The machine fires a 0.40-kg baseball wq ky(;2s4a8fq d1ibrysm,1 rrith 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 space capsule and ilc1g66j)t ww zs stationary when the tether line breaks. As a means of returning to the capsule he throws his 21 j lgw)zt6w6c.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 head-on a large gs 9o4ts,uvy.object at rest. The small object bounces straight bacgouy 9ss,tv. 4k 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 atv,*doxi2*.gkz ko1 sjhmb,5in28 g 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 jig5t2m1*n .d o8i,z2sbx ko,gv*k a hboth move off together?

  A car of mass 1000 kg moves to the right7srrf3i )8: ighxp2z t 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 total momentum afte 8:gz3p)7i2txir hfsrr the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that has;i x9 ffqku-,s a mass of 1500 kg and they stick together. What is the speed of the cars after u 9sxif; f,kq-the collision?

  A railroad freight car, mass 15,000 kg, is allowed to cs rglmk-oubt j13k xl,.zui.*,q(5mvoast 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 jl(umxm-3*tk.zgu1 s5 v,o.bl ,kqr i is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frgqwe x0pnt 9-(iction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops 9gwxp 0n-q(et 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 walks5uuos;yef /+ (w,n td6rdgmh4 on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With wha,h rgy(t5ds/ dfnuo;e46 u+mw t speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 ,;ad kce .8vmm.w p/esgb9ka /s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparte.waesk9m;.gd/a 8kcvm, p b/ed by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s o9v4uur8/-vj942dkpqmrxodm z9 axfhm;na 61 n a 6.0-kg object. What is the object's chan6o194 k/qrdp m 8avzf9mmj 2vrh; xu-na49 dxuge of velocity?

  A 2000-kg car, traveling to the right at 30 ba0j+*xg0 k tvm/s, collides with a brick wall and 0k x0 jtvag+b*comes to rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball bxdbbbgyo* 8(- y vq+-1qwzb /wack along the same path, anob-+/v( qby-x1y*bqd8gwzbw d 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 spza; /hgq,/9hg xq;du/m;e t ayeeds of the ball right before and right after hitting /aeghg;u,zqhdm /9x ;;qa/yt 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 a muug 0x8+cpp, sfzzle velocity of 750 m/s, at the rate of 300 rounp0,ux+sg8 p fcds 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 knock the do 66a/ r5l xjxn,h5mlator down. This requires a force of 1000 N. If the hose delivers 40 kg per s rm656n h,ltx 5alx/ajecond, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizyik8 d-j td0q9ane 9jr7 e9)eeontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the grojje-ee7eq)kdt9a r ny0i d 998und. Assuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mascgjqw*)- l by21 bjau8s 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired byuc)gjjl2 1w*a-8 qb straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of ma1.j5wizw n qx6sses 60 kg and 80 kg, are initially at rest in outer space. They push each other apiw z.qx1w5n6 jart. 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 collidep hl4b*j(cc; ps in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/spcp*bcj4 ;(l h. 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*8(aj gw(hr08jdc muy direction makes a head-on elastic collision 0(madh*jwjgu8ry c(8with 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 fir5-+n cjn6wl fyz7b8h y ggdg9*)+ vduted into a 1.00-kg block at rest. The bullet emerges)+uyhjdn wggbzdy9v*fl6 g -cnt7 5+8 (the 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 hmtdg+v54e mse* ywtwp a9t iu34p2 6-aead-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 have after the collision? (Asu - +wdvaeiywm4*pg6 25t9m34t epats sume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 4m-c k sxg g/y.gvz6 vd;ch2 ou--5tihm/s collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed ot-26ok ud4 c-sig/x 5h. vm-vyhg zc;gf each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a*g3j3y3 k4 migsxhje cq-r* 1t speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision ie1 33jic sm-kgqgj3**4yrh x ts 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 speepo.j /wj,w;k gq)sg-r d 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 mass-.gw)po/gjksr;w ,q jes after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0tz8j t avb7ot;r;i1r7d k8,qc m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic enerki7vqd zj8o ;t8tr,t 7a; cbr1gy is lost during this collision?

  A car of mass m, traveling with a vef. j;p*yx-6f (fa;qgfz exekjz. r :.vlocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collisi;f 6fxyrzfe*.j e-vfj:.xq.k(a ;pz gon?

A 15-g bullet traveling 213 m/s inwq1padfex9an 5:y 3v/ 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 verynqa5 fdxp 3 1we/a:9vtically 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 collij0h yz.jng *zy 81hb.zdes 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 speed of the cars a y.ngzz.zhby80*j j1hfter collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 30mn+l-jb6+ 4sphk v)vg 00-kg car traveling atj v+b6n -sk pm4)+vghl 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 collision?

  Two objects move on a level fricyio/i--mvie-8bh.e0lb d og 1 tionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a pe8-/lbi mieoh-vo01g ieby -d.rfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 et 5g7; wrp8sqkg, 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 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 thi5 ;rstpgq7e w8rd fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.0 m. Whxwfh3e r9 /rm+ere is the center of mass x9 her wrfm/+3on the x-axis?

  The center of mass of a two-particle systexp 557z drm tu8p5po3y3ip0xwh,6z rzm is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the tp7z5w0 p8x pz ,hp65ruy53drm io3zxlocation of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 4p ,7jz(/)ki xt xomvk2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Deterk4to( jxvxi ,7 /mp)kzmine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0toj l4vy55wmnb p45q8 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of wnmp j5ybl8t445vq o5the system?

  A 3.0-kg mass is positioned at (0, 8.0), a74 :f.kk s4iccsfw07j /uqfr qnd 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 i4.fkcjskwufq q:c 7f/4s0 7rcenter 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 CM of a who-)ofg9q:*cwqk4 pck5m 7f fb7t l d,rqle leg including the foot when the leg is stretched straight out. Assume the pqr k,7t:qf7fmbo*wl c-5pq )cfd94 gkerson is 1.60 m tall.