What is the SI unit of . d cfp.39xgqjmomentum?

  When a cannon fires a cann21 q66kkpxlg nonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at c2obgvp-b df 9.m)z6d konstant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the ov gbdp6)9 .f-z2bd kmvelocity of the car?

  A child falls sideways off5)a6-zbti4c ,wgef o f a sled while sledding on frictionless ice. What happens to the velocity o-4oz )aibf wgt ef,6c5f the sled?

  A rubber ball and a lump of putty have equal mass. They arek.x um0 .fl9pj thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. .u.9mpl jx0kfThe 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 you represe*ni4+;tt7 az os s(zidnt its kinetic energy +zs oant;iid (s*4tz 7in terms of these two quantities?

  If you pitch a baseball with twice the gl3lhcw ;8ewib x9 -x6kinetic energy you gave it in the previous pitch, tc3ilxh6w;g-9 xewb l 8he magnitude of its momentum is

State Newton's second law in terms kgwby(. tszjq./dj) .of momentum.

State the law of conservation of momentum((cf e6+obyp9kp8fxp)nq(hn*l grj,.

  The area under the curve on a Force versus time (F vs6i :zc4on4nv3pvr1 ws. t) graph represents

  Which of the following is an thep sr+ m0v;bdll-8 2accurate statement?

  A small car meshes with a large truck in a head-on collisio+lg.b3r)u+ vk2p*6 et5akmdl.xgfa k n. Which of the following sxvpb+36tak ).*g +r2emgdlk lk5fau.tatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from thed/p3n -mfa 00+jtwok yz,qs+ m same height, and rebound off the floor. The red ball rebounds to a higher position. Which b+qza yt/, 3+fndw0mjsm0-k p oall 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 wit/t655 paaicv 971p u dnh,.d/ohzsxwth a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowlinhv/x6hzdw/td 9. ta5s7uioa5c ppn1,g 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. Lineajk*1seq t mb9,.0kuch3cjz(x r momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It coln q0*1 q8jsucylides head-on with a 6.0-kg object moving to the left qc 01*sny 8uqjat 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker m54f 1mrb)i htd4 kb.kmuk4v)m oving at 2.0 m/s tackles head-on an 80-kg halfback ruim d4brk1vu4mh5 m)kb )ft4k .nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum hgp oenm/),r,is conserved, then which of the following statements is true eh mgo,p) n,r/about kinetic energy?

  When is kinetic energy conseriu9x*h,pkyw*-sjg dn.f ,a)aved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while the #t4a25ob)tjmv(zfe f c :7b l;:ntti/ k5 ball moves away with the same velocity as the cu:n t 5c v(:ftfiok;4b zttb/eja7l2m)e ball had originally. The type of collision is

  When a light beach ball r8kdmhm2na 6hac3.c .wolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the cw2.h k c8m.d3 an6ahmcollision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision with ofzd;2 z d +,e4iz8n(y:hgvhe a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately affv+ z(8 d;,d z4hhniozye2:geter the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elasti *0006w5dlt 8gh4rk dlm mjwjccally with an identical ball at rest. What is the 8rw0l5j6wl * mtddh4c mkj0 0gspeed of the initially stopped ball after the collision?

  A very heavy object moving with spevk2og )*t,f2ag mhqzj 6gi44ied v collides head-on with a very light object at rest. The collision is elastic, 2oihgz6j ,4mqgv*)4a gf tk2iand 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 mobcnh:: *qkk+c:2ku el) phf2vving with speed v collides head-on with a very heavy object at rest, in *kheqknbf:p):vu+lh2:c k2 c a 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 +3.0 m/s collides head-4sy/b *gfg xf ez30h4fon with a yellow ball of equal mass moving w0s4gf*h xz3gy /eff 4bith a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocityo7wz 8)ib*d.5scfhk g v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is nds*i z h8fwobk.g7 )5co friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, i fo*:;5dy97-x wi p6sstlccp4rvodf 1f the momentum is conserved, then which of the follol6o5 1 c-y dff ;p9rd4ox 7stcw:vis*pwing statements is true about kinetic energy?

  Two objects collide and std88ss0a z;zp5n5xsj)viu2 ;fc bsy7 wick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It colliq-o9+op. y nd b*jav6tdes in a perfectly inelastic co. *yotp+aqon d vbj-69llision 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 largel:q/a7i +2hga ) wb;bdz pdu(d object and sticks. Which object experiences the larger magnitude of momentum change?qp 7d2bwh(zba+idua/ lgd;) :

  In a game of pool, the white cue- a7t edlcyo2r-* bt(d8 n-qds 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. Which of the following statements is foobfzs 1 i-b/.alse?-.b /z1sofo ib

  Which of the following is a false sq 0ysjc u0 xe;e2fzx)lm)x/k7tatement?

  Tightrope walkers walk with a loi8hn6 6 6uo3jgw 8kjwang flexible rod in order to

  A plane, flying horizontally, releases a bomb,md/1v .2bs jfn which explodes before hitting the ground. Nemjs/fvd21. bn glecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head25cbau hb b-p1-on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rcb-pabb5u h 12est during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a systemg)rpmtbj12x4 9q avac.m-vo p /69v zo of particles.

  What is the momentum of a 2000-kg truck travelegl./, vd9mvo ing at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. Whaa+rump 6rwm.zj5nn/9 t is the magnitude of its momentum arru n9zp/. mm6jw+n5?

  A ball of mass 0.10 kg is dropped from a height of x:iu/5j,fykr) p8l z9t1biyq12 m. Its momentum when it strikes the ground i5)ui1 8xyltpy 9 br i/:jqfz,ks

  Two identical 1500-kg cars are moe;lslb ,t)c6) q c3f28bmch calfw2n:ving perpendicular 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 the total momentum of tlf)6c ,c l; wma2sqc 3b hlfc2e)b8n:the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s,ib88 fcp )* 7yoqw*jb0 xa7ccm strikes a wall and rebounds at 24 m/s. What is the change in the momentum of the ball wmbcc 7y)a*7io *qf80jcbp8x?

  A 0.060-kg tennis ball, zacv9qf +266h3o)i t ouh fvk-initially moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in mome v3t+62o -acuh fz9q6h)ifovkntum of the ball?

  A 50-kg pitching machq pkyf5q44 0kbine (excluding the baseball) 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 pitchyqb0pqk 4 45fking machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationary wjibx4d n7x - mt;eet93hen the tether line breaks. As a means of re4e 39mix njexdt;bt7 -turning to the capsule he throws his 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 approaches head-on a h6 ;1qyjkdafk8r c-j7large 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 objea1k8c7 ;qhjfd6 ky -jrct's momentum change?

  You (50-kg mass) skate on ihw xz9/mi,,9zg vnl3s ce at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with gi93w ,9zmsh ,/n xvzlopen 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 the3c e) ;m,ctxhpl x7y;hog5(tq right along a level, straight road at a speed of 6.0 m/s. It collides directly with a,xtecxm;ohh(c 57 ) ylqg3 pt; stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into thgrs0l 7jkq d(1e rear of a stopped car that has a mass of 1500 kg and they st 1j(d0g kl7sqrick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alonghxm1 k4opyz27 a level track at a speed of 2.0 m/s. It cozp 41 hyk2xom7llides 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 coupling?

  A railroad car, of mass 200 kg, n0d.ewg7cc uwm-0e)0 ifw h. 2)xshkv 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 movinhk00xech minc e )swuwv2.wfd-g0 .7)g after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 rlet hfrg 2s2g,+qcu( - 6ymat, -q*ezm/s (with respect to the log). With what speed does the log mov2r,(-z fe* rt+egsm hlac-gu2 q,6qtye, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an obj.3v6r :)srkskaj8yeq ect. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted byay.ev k)r j8:k3sq 6rs these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What 37ri:z:2yzxb :edng zis the object'ei2g :xr :y7zb :zn3zds change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides wia 0 dvxms3-c s8 t085sk6cdmavth a brick wall and comes to rest in 0.20 s.v8ms6c0s at-d ca8d530mvsxk 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 back along 5:s obn /zb3h( txp/g5ru,h di d(-rapthe same path, and at the same speed. If the bat was in contact with di3hu/5p tbzr:g (,n sr(- hxpo/5 abdthe 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 32r)cfya+ bk9 waoge.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 a .23kwya g+ e)rf9obctable top?

  A machine gun, of mass 35.0 kg, fires 50.0-grs67i1elfq /t(g8 v(bs yd v)tnam bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the vsst8bv 6gi1fqn)(/l7 yde(t average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knockdmtvkx6.1 n.zh tty ,+ the door down. 1 dktmt,ht.zvx 6y.n+ 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 h-wvitqx,r,g ma)6n u9irw p),5 fh/l9l6zbm gorizontal drainpipe at the rate of 120 kg per minute. It falls 3.2li g9) l ab6f59pt,rizwvq ,uw6 g)x/,mmnh-r 0 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 velocity of 40 m/s afteb96m :sc (hjvg 7dfo:nr 3.0 s, when fired straight up. What average thrust force does tnf mjv9o:d: hc(6 gs7bhe rocket engine exert?

  Two astronauts, of masses 60 kg and 80 km*njrtsoz8v+r v2g(( b)pg8 ng, are initially at rest in outer space. They push each other apart. What is their separat+m8( )8zr *pgnsn j2btvgv or(ion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rw9 + c o3bxlhg48ogj(zight with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a gw(4g8o9bzho+x3 jlc 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 ods-f24ht-x 7 o.a aqyof 0.20 m/s in 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 collision fo.at-2xyaohds7 -q4 ?

  A 10.0-g bullet moving yt7qo v7pk9 a:w7eon3 at 300 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 of its original speed. Whatk n9t :y7ooq7e3w vpa7 is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head- ld(bb v e a0z+goq00jab(7g2uon 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? (Assume the neutron's mass gg00(v uza aeq+ b0jdob7b2(lequals the proton's mass.)

  A 50-gram ball moving +10 m/89c19w kymgn fs collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ncyfm89 1kwg9 ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speednansb s ;zh1neb,h +w,*g e -idz5*x,h of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisi 15ibe; bs* ne-gnh*+,hha ,d zwnszx,on 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 sp3me*ir,wj kc1eed of 5.0 m/s. It collides head-on with a 3.0 kg mass at iw k*m 1c3,jerrest. If the collision is 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 h e05kp7 kp8)apje6 bfhead-on in a perfectly inelastic collision with a stationary 2.0-kg mass.0 kpfpk7 5eah j86p)eb How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parkedc+ 4vna lw.:10ubf.srvqmp nbd;u-1u fm-0kp 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 collision?m k- 4.rbd1ucwun-b anvp+lp;m 0: s0f v.1quf

A 15-g bullet travelingh-4ox k3pk+uc8ca b.z 213 m/s in a vertical direction buries itself in a 2.4-kg block ob.k4xp-h 8c ka+3czuof wood a rest 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 collides with a 3)ty; b 0l pmp)g af9e1,bcpu(ig g)+hf000-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 after co )l yehmag9u tpgfbip pb+g;1(0c) ),fllision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car travelinasd4kp,m )kswmokigi . :c8ylqx)/ 9-g at 6i) .s-ck/m i 89ly :aq,4w o)ksgkpxmd0.0 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 fricti t:eq: ehm8p *rlon79ronless surface. 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 rt 7elhnq9 8:*:p meorcollision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North h5o lu:c- wb . lw0,/wdce1ttyc:imc 0with 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 fly c/mw0c dotcthwwe-i,0c51 lu .b: :ragment 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 s h.)i twmw3rt:its at x = + 21.0 m. Where is .ht:ti w r3)wmthe center of mass on the x-axis?

  The center of mass of a two-/4jana:5j ) kplzyla)particle 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 locat4/ a5ayp)zl a n)jljk:ion of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2;ruqbnvdxn5h;fr )fg7 (l+-n .0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the fvr -) fqlbx(;ng7unrdh+ 5;ncenter of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locabm cks*e t,iz2) /ky*dted at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Wha*y/,tdk*)b sei cm2k zt is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, rc73dbz pk47+9 o7gza a3l.hxu pkcc.8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in tdc7bk .r7 lu4 73zczxc . ap9+p3kaohghe 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 CM of a whole leg xhw;j8cf wi):sklta,8 (vt+k including the foot wh; wis8(kkcv+lj f:wtx8 h,ta) en the leg is stretched straight out. Assume the person is 1.60 m tall.