What is the SI unit of momenj v *yl 3ws.+6/y7xx h:nuoazztum?

  When a cannon fires a cannonball, the cannon will e ctw4b;l*qmdx-45pj*uj6yrt/ 0ze g recoil backward because the

  A freight car moves along a f5 bzdsg/.mezcc rf(onv 0 t;:ky p-f3;rictionless level railroad track at constant speed. The car is opco:fkdy3;m/5csz;b0 v. gn eft r-z( pen on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sledqm5+x.akti bgqtk+h(97k mg 8 while sledding on frictionless ice. What happenh5i gk+mqtb+9k(k xm t .ga78qs to the velocity of the sled?

  A rubber ball and a lumpt1 o,wj04f js( lscrwx6 1t.dp of 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 sticks to the wall. Which objects experiences the grx 4. j,0(r sdt1tls61fwc wopjeater momentum change?

  A sailboat of mass m is moving with a mo+8tf+ky 0efj.ssev ( amentum p. How would you represent its kinetic energy in terms of these two quantfea0ke+. j8tys f+(sv ities?

  If you pitch a baseball with twice the k6 (g0 xkqi;lvainetic energy you gave it in the previous pitch, kvga(qix;6 l0the magnitude of its momentum is

State Newton's second law mpc3)cy/yvd/wg0 ta *in terms of momentum.

State the law of conservation of m f2+7 vnytdcgoh8 m,b)d4:hx7v z l)lzomentum.

  The area under the curve on a Force versus time (F vs. t) graph4urp1vh1i0-v p30zndx lwl6b)3tl i t6e +dc h represents

  Which of the following is an accurate statemen8fmhj1equr*9 9v: w abt?

  A small car meshes with a large truck in avs7-u rf afe (c 7/ bs8-.vgizs)isjb3 head-on collision. Which of the following statements concerning the (r-sgbzc8.a f/ iess73v vbu7isf -)jmagnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) arei: 13qsdog-oy*: fgqt 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 collision with the fl dosg1fq -y q3tg:*o:ioor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bl3 f ,1thzir5aowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Whicaz5li3 1,tfh rh object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce offwfva/ x u;tb/: each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on wbhji 8 z2f;ae wyr/xsrk);nl,6zos/6ith a 6.0-kg objecteohb6)l s;,jz/r x if2r;sn yw/6k 8az moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebaf2spv a,*-zj fcker moving at 2.0 m/s tackles head-on an 80-kg halfback runn , jpv-f2zf*asing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momeeqh wx/t29 4utntum is conserved, then which of the following statemenxheu42t w 9/tqts is true about kinetic energy?

  When is kinetic energy conserved(g9gsu;oipnq 1 y qban.z)jl+jg s5o5:h/ol1?

  In a game of pool, the white cue buy :rnx,k(em/9-x jk nh,;)ybfss9xmall hits the #5 ball and stops, while the #5 ball moves away with the same velocity as ;n,99:srx,kehy/mfx bj-uy)k(sxmnthe cue ball had originally. The type of collision is

  When a light beach ball rolling with u w:hakg*,t:ya speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collig,:: *yta hwuksion will be, approximately,

  A golf ball traveling 3.0 m/s to xpz weni.w50(6fbtw ;the right collides in a head-on collision with a stationary bowling ball in a friction-f(60wz n wet.i5xw;bfpree 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 hea6-xugip /y17 ,sh qflsd-on elastically with an identical ball at rest. Whs sip1x/ug67ql, f-yhat is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-s8) vwfn5v6asivv 47q, 40 all*gsbm von with a very light object at resta) vnvg* vqw 0ais,f7vbsv65m84ls l4. 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?

  A very light object moving with speed v: s : lavvffg6*v/4:osxyav/-zmnjn+ collides head-on with a very heavy object at rest, in a frictionless environment. The collisio4jx:6v vna/s/+ v :f: mls-zg*yofn avn 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 ball of e bvuvqj(pv5j9 c f86h6qual mass moving with a velocity of -2.0 m/s. What is the velocity of the yelj95(u6p 6fv b8 chjqvvlow ball after the collision?

  A very heavy object moving with velocity v dxwj s5y thu nm5;ej94s d8./ccollides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object bae5mnd xy;.9 4sd/ jshj8 cuwt5rely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum isnt*frwak2kep; 37m p* conserved, then which of the following statements is truek2* efp7 ptnwm;*r3a k about kinetic energy?

  Two objects collide and stick togzo98fxd/ k 6,t;u lqhyether. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It 6znp;( h3na9f uio+j w(bl61b6ijpze collides in a perfectly inelastic colina6i3 o b+e(w9bh(jjp6;nz61 pzl fulision 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 experw1ok)jr,9oa )5fe xm mrm)a a8iences the larger magnitudmof1 5 9akr,)ma)oamrjw 8 )xee of momentum change?

  In a game of pool, the white 5obknj m pt,67cue 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 mass8yqb3 oa s/qm,es, M and m. Which of the following statements is falsmsyo 8bq3q/,a e?

  Which of the following is a false statemenx9t7rx+ 0 kq8)ghb ezut?

  Tightrope walkers walk with a lox en4fca) nwel:2/.y+zcp y98cvn:3 qqw 9uvnng flexible rod in order to

  A plane, flying horizontawt*xd61ou6n6(yy m/ 5kn9ygs.w hkft lly, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bon g6.mktuyhyx w6(6s5nko /t d9*ywf1mb fragments, just after the explosion

  Two cars collide head-on on a level frictiona q:-osc 4xk1c-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity ofc k:4xaq-s1co this system's center of mass?

State Newton's second law for c j mbt.c/+j8qnv7d9da system of particles.

  What is the momentum of wz(5q p (i;aad6/elnra 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving sok,5b xx,0vh la1mtc8k+ e)-wznkh6h ruth at 20 m/s. What is the magnitude of its moma n -kxlmhh ,khbkex)1r8 c,v z56tw+0entum?

  A ball of mass 0.10 kg is dropped from a height of 12 m.*n49vc50fd x ypn;ad5hy+a k k Its momentum when it stvy5kk9x +hc;0*f4pn5yd an adrikes the ground is

  Two identical 1500-kg cars are moving perpendicular t;hq3u ;nv4nxcg*f5+lmp 1rd 1z9u ftc o each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due t5;1*v ;rxduphg4c9n lu 1q 3+cmnzff east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveliy2xa pqz;8f ai :l6vg0ng horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the changeqzxg 8 :y6lf;p2v 0aai in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, ig nfdr75w8 2bes struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the chanb gnwrf28 ed75ge in momentum of the ball?

  A 50-kg pitching machine (excluding-ty-wchjem fo- w 6:jxu(.r;y 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 :jmruhyyco;-w --. texfjw6( speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space cunt/n0ave;j ;j +ve3 kapsule 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 of 14 m/s away from the capsule. At what+ e vue; 0j3tnak/vnj; speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approachenq 5r.q (opkw+5)kouts 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 magnitude of the large object's mome+q q5onkr u(.wpo5k)t ntum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your frihp2c1p com(ju9 qn-t8qzu v)v5/;azo .u l1vuend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with w.j 5;9uo u1vnoc/v1h-qzu 8)c auzm tv2(pqplhat speed do you both move off together?

  A car of mass 1000 kg moves to the right along a 3xp721 1:aslzwcc*a:afq ymwlevel, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcyclwawyc2z3 s1am7:1:fql p xac*e 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 stoppez2gxn gvw , 96h;kbia3d car that has a mass of 1500 kg and they sti; hnvw kgax32g9bi,z6ck together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to cd;f-iw o4wvjmjq-pvpth cg2607q hp + 2etk1, oast 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 afterdv1h-j gotwjp-m 6ekh2f;pc t qwi+7 p q4,0v2 coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on b ,sct x::o -morq/qepa.nr(. 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 feqrp:.a tx-s. ,o/c( mr:bo nqast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0s6pcmjg:ct(0 k x2h; o.80 m/s (with respect to the log). With what speed does the log move, with respect to the sh k:6( sct0mpoxc;g h2jore?

  A 4.0-N force acts for 3.0 s on an object. The forcem+w xu*oi8h e. suddenly increases to 15 N and acts for one more second. What impulse was impuh.ex mo*iw8 +arted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is thfo4iu:zn q4;h kfo -1he object's chanz -4o:;fhi1k4uoqf hnge of velocity?

  A 2000-kg car, traveling to the right at 30 mtmqe8dnhx2ttu2n4 z7t8e)ie b0 p5 0r/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car05nr7tp zb 0e )u2etq82tti x8edhn 4m exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/iyjo7ia +:u( cs. You hit the ball back along the same path, and at the si ijoc7y+:au(ame 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 sb7sz g0qh/f g 9f3ww+fpeeds of 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 betwew q w9f3 +fsfzhg/g70ben 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, fir u9f9na)6ye9 0mjy1mlvf/s kwye0a+ ces 50.0-gram bullets, with a muzzle velocity of 750 m/s,9/msfjn9fe9wcy6ye0 uava1kmy 0l +) 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 doo8i fejm ;w:i f 6qf))52eqze sea/2gelr of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per se/6)52e i aeime;qff) es:wj8 lzf gqe2cond, 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 mu ;w4i .8ytmhfl56dmwmx0 2s per minute. It falls 3.20 m to the ground. Assumi0 hs5d 6 8y.2fx;w4mwmltu mimng 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 after 3.0 s, wh u99o hgwdu5g8en fired straight up. What averagg5o899hwdu uge thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest iu 0pzn-ds u,v0n outer space. They pzs,u- u0n dv0push each other apart. 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 collides in a o pciy09c)z3kx el+wk xn0d.v z d e(g+as09q0perfectly elastic collision with a 6.0-q9k0w(id o vsex0 k+xldy0 ga.0p+e93 czc)n zkg 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 0.2heo .i.-tdf p g oxdjux w(-4tr/0fug9(v,5 hr0 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 collisionrh vw/h95- o4(.r-.0t xxo jpfde ,ggiutd( fu?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The bgw:xa.g e. wozsp y8jj1i8;4bullet emerges (the bullet dp;gsjww.. yb48 ij 1z8oxeg a:oes 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-particle (which cowht4,y)tse .x /w+ xi28b1f6r mmdjbjnsists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alph e/jwj6mxtfb+2.x,h184md riy w bts )a-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with)i6w ,tg0ukl q:8izm9n c,( o mcl6qla a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately af6qa9zot cm qkl,m6unii0:(wcgl8 l),ter the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s : kn6;f.bpj elqo)6:+n0/p v z vvijgfcollides head-on with a 200 g ball sitting at rest. The collision is /i gjz6q+ ) 06n:bnfvj:vfopvplk. ;eperfectly 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 collides head-on with a 3.0 ;z)i gpglt).nkg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision ti) ;z.g)nlgp?

  A 2.0-kg mass moving to the east at a y/oyaxk h.2(spbe 0r88vgt . uspeed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost g0sb.u r. o8p2x( eykhy/8tav during this collision?

  A car of mass m, traveling with a velocity v, s afc yyinx8*:4trikes a parked station wagon, who's mass is 2m.:yc yai48n*x f The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveli9a q34n.p ;8ukt7sf,3)j+sq ( ezmvf b ghvbxsng 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. qg4v )q v,phab ( m x;uk8 +nj337f9se.szbftsAs 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 p(a pqy uw/re;q:+s dec581le 90.0 km/h east 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 iuywrlppqeaq e d/es51+(c: 8; s the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000ch9mjerr((33mvhr9;pcpkyy) u7/d a -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 afterr 9hc)jkyh39ey; 7v/d ap((urmr 3cm p collision?

  Two objects move on l20 pw t-el+obe,mkc2 jhizph16y ,y-a level frictionless 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 inelast -zp lt6,2jily,01 ekchw 2mbe+yop-hic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, lb0 706/2(pcall hagrvmhq *lis 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 moviqm(l0/ha0aplbg2 hv l c6*l7rng 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 t: il32isyw1 prhe origin, and a 10.0-kg mass sits at x = + 21.0 m. Where:sr 1p 3iwlyi2 is the center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle i wt-u- p 03fa0umsvm4ys located at (3.0 m, 0) and has a mass of 4w ft auypm0vsu30--m2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kd*yhu wef3;g,f3itjo:j*fqx1q e+0 bg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0)i to **u3 +j qwdb3,x ;yqf1j0f:hfgee. Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m)9t9ielx kb,e5, and (2.0 m, -2.0 m), respectively. What is the locattbeiel,k995 xion of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg cb(4 n*i c;i-8va+s dj bxvxo0mass is positioned at (12, 0). What are the coordinat8vbs c*va c0jx4(do biixn+;- es of a 4.0-kg mass 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 the CM of a whole leg including5)th9j6)qeelvm ha ) g the foot when the leg is stretched st )5mate9)qe)6hjgvhl raight out. Assume the person is 1.60 m tall.