What is the SI unit of mo l5ls :+ 8y a5pe6o7,dgdqrzhsmentum?

  When a cannon fires a c 8ej f7,k.vjkqannonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroqz i ahhlqdz57q6w* x5x;8n -xad track at constant speed. The car is open on top. A large load of cox;h*x5az6nwdq l5 iq-qh7z 8x al is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionle-tes0ikp:hlv:qd * uki/ k/ :uss ice. What happens to the veloci:uk q:v- /t *dsih:pl/kiue0kty of the sled?

  A rubber ball and a lump /70 n;x oowke yi;nq;nof putty have 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 stick;no;qyein; /0 ox7kn ws to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would yon.w b*;abjzu en23s 6i5t7bziu represent its kinetic energy in terms etibs6bz2 n.;5 jn7ibza 3*uw of these two quantities?

  If you pitch a baseball with twice u/u)f)4gb+ku m l d0hmthe kinetic energy you gave it in the previous pitch0mdmuu kf4+lh )bg)u/ , the magnitude of its momentum is

State Newton's second law in terms of momentu-l si5y ksyi5 d r.d*039y.ugnv gh8.bd9 omklm.

State the law of conservation;u iiq* rs()vgt zwzyq0c:7p+ of momentum.

  The area under the curb2fu+isrf8pxnw ) +2vve on a Force versus time (F vs. t) graph represents

  Which of the following is an accuo n:p(zswn( x:rate statement?

  A small car meshes with a large truck in a head-on collision /b,.ns7fsl8htf1wb pjq o+q(. Which of the following s1j o,tl +f./(bqn7hfsp q8bs wtatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropp 01nj 0np6cumu9e;ns/nn k*dped 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 du 0spn1 eu*p/dj;6n9n0c knumn ring its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a eakteq2m55)rstationary bowling5e) rk5eatm2q 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 impulse during the collision?

  Two objects collide and bounco5aaec e 6*q/,3gz v j4;-t r2wlwataze off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s sp7xtiak /.v c;bt:5f)g ue9b. It collides head-on with a 6.0-kg object ; p :5t. stc9xge 7uibvfk)/bamoving 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-lycvm 6x:f/b *kg halfback runniy:*vx 6m/ lfbcng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the moy(t 0e6h)+ pextz3sayi1w xr y5(poy3mentum is conserved, then which of the following statements is true about kinetic en 33rwsa 6yey5+hp yxiy (1ezx(0)p ttoergy?

  When is kinetic energy conse1z) ulb1 pnwsz)gkd/ c11 l/sfrved?

  In a game of pool, the white cue ball hits the #5 ball and sjip hwf jdi;t) :a(5v.tops, while the #5 ball moves away with the same velocity as the cue ball had hv).: i;(tadwijfp j5originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s tr(*++wtclv/l)d pm h collides with a heavy exercise ball at rest, the beach ball's speed after the +c h +(r plv)*tl/mtdwcollision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a heauphruo71gmrp9t6; gr9 nkqs 6t). mx4d-on collision with a statir9o t7pt)hmn 6x4;s gp . gk9rumu1qr6onary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of4paui8z /vs0i (2lr 9zah vn(d1byhf;l n,j z5 5.0 m/s collides head-on elastically with an identical basa2znu nb5; i j hrl/zpy4vz1l a0(,9v hid(8fll 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 obd:ch.v4 z az8itjdl: 0ject at rest. The collision is elastich.z0dt:a :vz c8ild4j, 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 movini; 6 p2kt6owpqg with speed v collides head-on with a very heavy object at rest, in a frict6p pwk;62qi toionless 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-on with a yellow balloqyu2a u2g, ;c of equalu2,q o;2yacug mass moving with 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 wib4r f;w8 ww;,3kq bed66dsho tth a very light object moving with velociteq b h84;;ds,6 w36 tfbdkwrwoy -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, ifc ot2kwnu;b9 n3r *lja )c/ q15ae5cvn the momentum is conserved, then which of the following statements is true ablrn1 u vkn nat/jb5o;92c* e)waq 3c5cout kinetic energy?

  Two objects collide and stin1*/8wr nd5z;u gvav ivgt,u- ck together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides ;iai jsz e4xv)fb/;c 9in a perfectly inelastic collisixjv4) c bia/9sf; zei;on 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. Whicuf5zx8f7q iv 6v tz7)vn, ( nffu0so3hh object experiences the larger magnfit),7uu v vvf68zn5xof(hz0fq s 7n3 itude of momentum change?

  In a game of pool, the white cue ball hitscb0do 9s3ve0 t 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 follggc)0px *y;jm .k(6xueukr ,ac, rz)v owing statements is fals(j)gyxr zuk.6v*ac;m)eprk, xg u c0, e?

  Which of the followinahrkqx*8)ll)*n pc b ;g is a false statement?

  Tightrope walkers walk with a long flexible6.ym:inlc r/ t rod in order to

  A plane, flying horizontally, releases a bomb, which explod88goiwz;y(n ks4+sjr.7ue c oes before hitting the ground. Neglecting air resistance, the c7i 8+r ;yg( 4cswnz. keo8ojsuenter of mass of the bomb fragments, just after the explosion

  Two cars collide head-on og6wwyf th:t-:mnk 0xtb0)3d z n a level friction-free road. The collision was completely inelastic and both ::6y-h fx 00mttztnw)wbgd3 k cars quickly came 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 g- evpd(iv duo(s)n(mt5,s ( oparticles.

  What is the momentum of a rb sg22r,1 aa/7lzwi 2o0nunn 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its mo3h9. he1 lh8xiu.sh 64rlkh dmmentls1 3h9hk hd.xhi684.mheurl um?

  A ball of mass 0.10 kg is dropped from a heighjmz -v9r i ieq0)ts:0ht of 12 m. Its momentum when it stri09v 0t:ijhriz-)q esm kes the ground is

  Two identical 1500-kg cars ary+5i qv w 0wbbi0+l7lykwg hf-0p2l h+e moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other ml2+f hibkb-i5wyv0+l0w7qwy0 + lhpg oves 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 wal)qyjoor* +k t:p g7b0vl and rebounds at 24 m/s. What is the change in the momentum k:o7r v+ tj )*0bpyogqof the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a )-coo8h+ xyqm -e6ct is7)vpw racket causing it to rebound in io ts-7)w-8cxpy he)q+vc6m othe 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) is placed on z)pq2,y rz t8ua 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? (Assume negligible frictiopuz,)yq8 z2r tn.)

  A 70-kg astronaut is space-walking outside the space casfz;3 ul9+8 h0wi* eyqm*nbtzpsule 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 speed of9b3fi yh lsq80ut;z +me*nw*z 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 v myk k1zlk)j*,yn*8g 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 magnitudk*vym)l ,1 nk8 *zjkyge of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your fr5oeyd v8.xuwhwn,hu v. :rb5;iend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togetvhw55;b..rw 8uh e,x:nuv odyher?

  A car of mass 1000 kg moves to,u.t 9umh hkqs rju6.8 the right 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 6j,s q umtk.rhu9.h u8total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car tha/tzlcdv4i:r7gpe4t * em z6aub +x.a;t has a mass of 1500 kg and they stick together. Whaz6a +4 /d c:g4mbetv.ure xp l7zi;at*t is the speed of the cars after the collision?

  A railroad freight car s6 e.p z8viwqw/o2l*d, 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 8oww6/ l.eizs*d qp2vreleased. What is the speed of the two cars after coupling?

  A railroad car, of majyh 0irdsv 576ss 200 kg, 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 thdr50 ivy6hj7 se 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 to thb ; jyl/ 6cu.cgsgii1,s.q0ssw t/+ 2fpa kfj8e log). With what speed does the log move, with 8;b sjipl ftys+ufc 62igsj .0c1 a//sk.wq,grespect to the shore?

  A 4.0-N force acts for 3.0 s on jpgg)exc9 x0bzg7h +6 an object. The force suddenly increases to 15 N and acts for one more second. What impuls9gcg7x zhx e)pj0+ 6gbe was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a wj*joe 93qaq 96.0-kg object. What is the object's c 99ew* jajq3qohange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, colliy+k2p 2fcf4 yvdes with a brick wall and comekv4f +22c pyfys 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;p ns7.5lq o-pnib 9xt the ball back along the same path, and at the same speed. If thenb5t7-.n s qopxlp9 ;i 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 droppedg.0rwi c wzy3.t)spk y(9vhsm (4 bd;d onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respey. pb) 9(iy4d m w dt(.s3c;0hgrskvwzctively. 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 massw* nu 8xex8pcbdcs371 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average fxe s8 3w p*cd8un17xcborce exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buildiieqm)2x5ti+.pclc 3 q ng in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per seconx235c)lm i. t+pq icqed, 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 kg per minuk:re dijvbbxz-(z / 2,te. It falls 3.20 m to the ground. Assuming the water doesn't s: ,v xbz-2ekj i/dbzr(plash 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 after 3.0 s, ;8dn/prfl8r:u-zzku ku 6g;rwhen fired straight up. What avekruu; 8;flzr/z6- rnukd:8pg rage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer spac:/sq; rmirp 2fe. They push each other apart. What is their separation after t2;r qfsim/ p:rhe lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 moj c( 6fdz)-zk/s. It collides in a perfectly elastic collision with af-zockz () 6dj 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 the +x direction makes a he8twu ,eiby b6p7sg d3o 57)i.szq-x mgad-on elastic collision with a 0.15 kg object initially at rest. Wq i6 d 7-8pb,yzbws )tu57om3sigxeg.hat 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 bloca eo il :qa1cf*tu,)v9 xa3ia1k at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block r3a* oa, te)u1 :l9 iavfcaixq1ight after the collision?

  A proton, of mass m, at rest, is struck head-onvh96 t.yx/(ctkq. fm9u ,hhj m 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 ma9htthv/ .jc6qh 9(kxy .mmu, fss equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary m2ndpn1m51rsc* 3jgj ball of mass 100 g. The collision mrn3j2 5dpncm1 *jsg 1is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with9l.fu-vsg 2+2ql )l i2fpms xt gc*.lj a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is pu -tf9 +mx.sl2cplqfl 2.s*lvgi2) jg erfectly 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 b.81bmjm i6nhcollides head-on with a 3.0 kg mass at rest. If the coll 8im bn.mjb6h1ision 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 head-on in4su86 s2geh nq a perfectly inelastic collision with a stationary 2.0-kg mass. How much kie2q un486g sshnetic energy is lost during this collision?

  A car of mass m, traveling with a vhd.fjnjx / k*4elocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on ineljh 4*djxnf/k.astic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet travelisx) s;+r* oycujz.+ieng 213 m/s in a vertical direction buries itself in a 2.4-kg blo+xe; isjz* rus).yc +ock of 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 90ed a6 m: b./u7vyce) ngqyfcm.n 8td0..0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togeth y.cmf8.ce6n7deqd/y :a) mg.v0t ub ner 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/htit2y,8ob a5ge+ , lpz east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togeyz52+ pet,,it la8bgother 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 easw(3da fsp2( /gxbmn r9t 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 magnit/(aw nf 9(2sxgmdr pb3ude 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 m,cvnh2m:eb1t7* hj o.yl oe6x/s. Ihyb7cnt*26elo:v .hm 1 ex,jot 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 friction.)

  A 4.00-kg mass sits at the orig-(s 4cz +tbh bd+aq;sxin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mbqst4 bxdc;z-+(ah s +ass on the x-axis?

  The center of mass of a two-pao 5+kedqabwq ;( xvf;,rticle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 qwab5e+ kx;dq(fv ,;okg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kgav;mj1i:br,r3 me eb*k0o as : at (0, 0), 2.0 kg at (2.0, 0), an:kvrrbo a3:m 0; mbsi1e,aj* ed 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locate+5njp ,wd m drozm8mx+v- r(i3d at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. W+ rd3jd5vmpxwi rz (-mo+,nm8hat 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 is posiwyf97hw lf:2t tioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the system of three masses beintl9w 2wfyhf: 7g located at the origin, (0, 0)?

  Use Table 7-1 to calculag ,0qrq adokq2;zzjtq-*7kh.te the position of the CM of a whole leg including the foot whe ah7d;-j q*rt.q o kkz2gq0z,qn the leg is stretched straight out. Assume the person is 1.60 m tall.