What is the SI unit of momentdl.r 0c8 ob7vslh6 689sw,awxtp2gms um?

  When a cannon fires a cannonball, the cannoqu d- q01ho4hpn will recoil backward because the

  A freight car moves along a frictionless level railroadl4l00v7qam 4gh 5v;v jij.i eobz*(xn track at constant speed. The car is open on top. A large load of coal is suddenly dumped imi4 g0boa0jlvnj x4(5; qi *vlv 7hz.ento the car. What happens to the velocity of the car?

  A child falls sideways off0l7.g1rap3kzn zoo e 3 a sled while sledding on frictionless ice. What happens to the velocity of tz7o 1.lpgakz3n0 3erohe sled?

  A rubber ball and a lump of putty have equal mass. They are thrown wi)(:4u9q/i mczpb8yyw. qck dn th equal sp4c(q.98qy)ydz: bc/km piwuneed against 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 is moving with a momentum p. How would yd1 ua+a.sd kt;+ 98jlrnz ds.jou represent its kinetic energy in terms of thedj1j+8 9.tknz;asl. au+dsrdse two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in thevj 2-y7yrs, bz previous pitch, the magnitude of its momentum ij7 y2,bsv yrz-s

State Newton's second l d8oraavc8wyxt; hx;9vgb2s xr/s06+aw in terms of momentum.

State the law of conservatk7- cphm8 i/ nf3jb,vwm05ilo/do (uk7mfk*tion of momentum.

  The area under the curve on a For2+ yy4izrtrfp l4/,sed6+f th0jgmt k3da 5/zce versus time (F vs. t) graph represents

  Which of the following is an accurate statqsh1jx ,-b ris rdw0qi 1:a2j-ement?

  A small car meshes with a large truck in a head-on collision. Wh b(pkv0d- p)i1ma)ntwich of the following statements concerning the magnitude of the average collision force-p)anipktmwbd v)0 1 ( is correct?

  Two equal mass balls (one red abw z wmchd6-c1cgp,;f8*hw k2nd the 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 mp1 k w*-dg;w8ch2fh z6bcwc ,during its collision with the floor?

  A Ping-Pong ball moving east at a speed o;40h qp kl)5qwf0mc /km rn)fsf 4 m/s, 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 q0clm rf))5w0k/pk4; hnsmfq magnitude impulse during the collision?

  Two objects collide and j14 bvk su,on god62l(g l5r;obounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on w v7.- syf s etnnq4cg*7 *uiy;bbzt8n9al+4ujith a 6.0-kg object moving to the left at 2.0 m/s. Which statemettv snunn+jsgq 7;ae* byf-*8b4y u7 l.c9i4znt is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80s v k,*4won n4hnj)e+bmsa/ ;w-kg halfbackssj44nva+hbw onn, k wm*/); e running
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 the followi rpgl:ib6+pda/ kv1ap7vt8oi*xa7 6g ng statements is true about kinetic enep6*gr 1/bvaaxkioiv p7 ld:g+a67t8p rgy?

  When is kinetic energy ck+*j2ovhi /dx onserved?

  In a game of pool, the white cue ball hits the #5 ballojlp4i d5;w. zw18tul2 s kcf3 and stops, while the #5 bd8wo 2zt s5. 4lfcjw il;uk3p1all 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 colli7rd0 rawm ,xdeq2py* ,un0, lq-mwxc ,des with a heavy exercise ball at rest, the beach ball's speed after the collid rc 0np*,,emar,yxx7 2w 0u d-qmlq,wsion will be, approximately,

  A golf ball traveling 3.0 m/s to the righece +:;ii e9ert collides in a head-on collision with a stationary bowling ball ine+eei9iecr ;: 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 of 5.0 m/s collides h o y3.-y1mf*vid ok7yrv0k kj*ead-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after o*yyd7v .y jkm3rkvo*ik -f01the collision?

  A very heavy object moving r dk1.7bp)m +axjd* )1)rnlc eepsb8wwith speed v collides head-on with a very light object at rest. The collision is elastic, and there is no ks+e clr7w)1n .r1em)ap8b*dbxd j p)friction. 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 c fsj)7 yibzko tr,.3+qollides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost 7oqs ijrkzf+ y3b.t,)perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +366u e 3qebvjb,n 7ody+.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity 6nud+jv7y,ebbq6e3 o 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 headis iag 0;ffsds-- di.ll4,v .y-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heav4sf0 ygdvis -, . lal-d.iifs;y object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the mkq gg:ypnmsd;3ao+( )cp4vz . omentum is conserved, then which of the following statey3do (+aqn cz)pk;spmv.g4:gments is true about kinetic energy?

  Two objects collide and stick together. Kigv7d6 2wl fgel gfi3n1 pwf:(5netic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfehl15q7. iwzlr gejb68ctly inelastic collision withlzlqw.je6 8i7rh1g 5b 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 objeco r3fl7pb3 15ldcww 8ht and sticks. Which object experiences the larger magnitude of mow1bpl38r3w 75 dchf lomentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflectpiz - mbifgq)/( lx4j0ed 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 0q fat ynyxb82tv4st; j/e,i3falss 0txj2,yenbit tf4q8 ;a3/v ye?

  Which of the following is a false state02e s jgcuaay dny0,qe),wh7 2ment?

  Tightrope walkers walk with a leyb5am*0 ylxhj,qrt y7 r,9sp7 r*r;etgi4 6rong flexible rod in order to

  A plane, flying horizontally, releases a bo bi:tx /whix:w26nw6meum/w5jws/ 3 amb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the expws6e3m:x6wi/wa mxub /iw /t2: wn5jhlosion

  Two cars collide head-on on a level friction-free road. The collision was complej3 -1e,lwech0( jb 7y*hafcwetely inelastic and both cars quickly came to rest during the collision. What is true 7e, a0 wjwe*yc3 -l1(jbcehhfabout the velocity of this system's center of mass?

State Newton's second law for a system of particl9 f/z.vd+ *kv ad-tylkvcrn+ig6 n5p 7es.

  What is the momentum of a 2000-kg truck traveling6v nukk;c-jz g .)th.e at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the m7n(s*(:l dyscm i71n yz /jnfeagnitude of its moment(( *7fmyzy1:s ndncesilj/ 7 num?

  A ball of mass 0.10 kg is dropped from a heg f.ureg-o 02jcuzv hv9a g,rl*8- a8iight of 12 m. Its momentum when it strikes the ground-,cl vg gaor29jzu 88 r0* igauhve-f. is

  Two identical 1500-kg rka0dr51 rto9.dno t8 cars are moving 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 oo 0tkdt8n.r91orar5 df the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wallpj jn05j.ea xh,iotl y.8n4sws7w2j- and rebounds at 24 m/s. What is the4a,ht -xennj o wpywis8 jlj2.0j75.s change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck b7 2lw7 avb,jhm4ny)c qy a racket causing it to rebound in the opposite direction at a speed of 18b 4h ) w2lq,7mjyavc7n m/s. What is the change in momentum of the ball?

  A 50-kg pitching machi6.r,xocpriaz vaorm 7( p22r/ne (excluding the baseball) is placed on a frozen pond. The machine fires a,cvapp /ix.267 rzra or mor2( 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 the space capc)g-/afjq+kd(k cyi,mu c9tfk 1/x m0sule and is stationary when the tether line breaks. As a means of returning to the cac/, cfkm d uy mxt1-9q0af)g(jki+k/c psule 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 he 57i6c8rokw scad-on a large object at rest. The small object bounces straight back with a momentum of magnitude k6c75ros8wc i4.0 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 0t;g dh5n 0h7dao6l,g z +p/mquo iit to7d)a:greet your friend (40-kg mass), who is standing still, with open 7 p7a5zia6h;/ogl0)o tnd diotd+ 0gmtqu:,harms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves 2,2klm ;nmme9 (smwrij jyte e;/ :* mb6nj;xrto the right along a level, straight road at a speed of 6.9et ;rmkm(;26mj /:n rnwe;ejj,syb2ml x* mi0 m/s. It collides directly with a 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 the rear of a stoz; c4c9fkx*t ja:g)f ppped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after *c4tj f)ca;zxkf 9:gpthe collision?

  A railroad freight car, mass 15,0 xddy7*14jt ebpjr c9500 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 t517x*edjtjyb 94cd r pwo cars after coupling?

  A railroad car, of mass 200 ked5. (/cdb;,ago(lwvfnox 1zg, 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 ,oab(ezd;x(fg/ c1o wlnv5.d 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 t9do27 gebvk2p/:zb)xkt4k n )xz wyb 7he log). With what speed does the dkny)v9 2)pbk2x :b7ox beg4tk7zwz/ log move, with respect to the shore?

  A 4.0-N force acts fc/diita h:9w17 q0 vebor 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object c1dtb9/0:qah wvii7e?

  A constant 9.0-N net force acts fv6goi -+mx;ih 3lfnmv l8) ,sxor 2.0 s on a 6.0-kg object. What is the object's change ofvlo x8li i3,v;g + x)mfn6hm-s velocity?

  A 2000-kg car, traveling to tpzf 1eflj8 ;; t1ve b0tzqk16khe right at 30 m/s, collides with a brick wall and comes to rest in 0.20ft1pke t;fel8bq1v;z1 z6 jk0 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 thqm0mgnqa kap 1v )n;4/e ball back along the same path, and at the same speed. If the bat was in contact withan;v q0 )m1/ank qgm4p 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 jbublbjs (0.p.m j(6; at)qdmthe ball right before and right after hitting the table top are mjj6tal .);bqbjpsbu(m.0 (d 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, 1d5qwn 9i (kcbfires 50.0-gram bullets, with a muzzle velocity of 750 m cik9d qwb1(n5/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 d)mrf.hinrp vg2v -:zrzo 635 ooor of a burning building in order to knock the door down. This requires ahovif 5zv3 r):ozgr 6-2npm .r 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 cou mlqendn3f.u ,k))i0ok15of 120 kg per minute. It falls 3.20 m to the ground. Assuming the in1du0,. 3qo mc5 uf)oe)nklkwater doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg,biykrzx*n dq217e(* : njpeb 6 achieves a velocity of 40 m/s after 3.0 s, when fired1npnqz rb(eid7 ey 6*xk2: bj* straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 6m +1)xbw e*2ao4rw v* lo3teki0 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their er*k+ 3m *i4ot)w xl1oew vab2separation 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 i g3m3d5hxy ks z2n,cl3n a perfectly elasd,3ckgy x 3z5nml23sh tic 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 velobkjun:3.tyid :w4g9sv1 :asucity of 0.20 m/s in the +x direction makes a head-on elastic collision with avs t s3n dg4:19.uij wubk::ya 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 f6x i)j;)nn.am-6 d :j r7ribx0begjuhired into a 1.00-kg block at rest. The bullet emerges (the bullet doesa jn ;bd7x)xmu)j.i0jhr-6i 6 nb :ger 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 head-on by an alpha-partm w+.f eu)45+m tfixkl+uy6ymicle (which consists of 2 protons and 2 .m kf5iux)f+lmu++y4e y m6tw 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 equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides1n2ole6 lgrb+/j qvy. head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediav/geo6y. n2l q lb+r1jtely after the collision?

A ball of mass 400 g moving toward t41 f fiqrxie ha;rz292he east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision isia1eh i;2r49xrf2 f qz 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 v4 yj1u5px:m gc,eb;uwl xj v0.h:-dnspeed 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 ofeuwu.bxn :c-j; 0xhj4,dyvlv g 5p:1m 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 pt) rozfnt9paof*:e 7y-,n: hverfectly inelastic collision witht-9vy*7:oe, aron pf nf:t hz) a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, travoctk/ 6bh ,ei2b+l31mjdj * 0xg-l wdheling with a velocity 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 lojcbt0 h/ + 63dwoih, dll*-gm21jkexb st in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in 7ds jd redzz20v+7 nv8a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upw7z+ 8vzdje0 nv7ds r2dard.
(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 3000-kg car travlor; 1cc 2w7kmeling at 60.0 km/hmr c;koc2w1l 7 south. The two cars stick together 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 east collidep,gxs;8kgmk.* 5m dgmx ls(k:s with a 3000-kg car traveling g8xs x ,k:.mk l(;mkspg*gm5 dat 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 frictionless surface)dqct j* i8wx0. Object A moves east with a momw0x)i jd 8q*ctentum of 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 mass 10 kg, is moving toward)yyot8uod 6*q/mwt9k 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 a8tt9y)d o*q mykuw/o6 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 i o8g o+)j;cdlorigin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on the x-i8lj+dcg;)oo axis?

  The center of mass of a two-parlob2l p(e y 9wr+:-zdj;*lcerticle 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 location of the seconw;r(leled cjpobl9+*2 y- zr :d mass of 3.0 kg?

  Three masses are positioned as follows: 2. k-icm f/q*6+1 m .kgomu*okrk0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 .mom-r/kmkfqk 1 gc6*k *u+io 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 locahi ;;b 3nw) y5tztx8ivted at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the loc 8t bn;3hii)w;zvx5ytation 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 positj5i9v/k l g, uz3xg9zr llf8r/3wghc5ioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of massi9 f, 3wkzg/cu lr9j/gll5zx hvr835 g of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate yuv( n+bxcyf7sk: (q e yaf379*bsp03po*dy kthe position of the CM of a whole leg including the foot when the leg i+xnkqeb*dpf a9(v30 7 ysocbkyfs 7y*( u: yp3s stretched straight out. Assume the person is 1.60 m tall.