What is the SI unit of mos9 ga(g,3(njztzuuzm6z 0p3i mentum?

  When a cannon fires a cannonball, the cannon will recoil backwaf+og.h)p/yc: e py++t xlo ji . ijr*ot)b*5hqrd because the

  A freight car moves along a frictionless level railroad track at constan3;mdk:-l ko4q f6. 0g5cgw( rsnc:yorygp.wc t speed. The car is open on top. A large load of coal is suddenly dum: gkrm;gf53qy.ro.d g06 4 so( k pwnwc:ccly-ped into the car. What happens to the velocity of the car?

  A child falls sideway)dq* 59 lqqauus off a sled while sledding on frictionless ice. What happens to the velocity ofd q9) 5uaquql* the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown wit9fpo4ks2ed,p /qb;z+l;u*fj o uak-th equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall.ua+4 oks p/ dbj ufo-l2zf;ptq9*k,;e Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How-fdw2brnpx d6 68nk05kzxod, would you represent its kinetic energy in terms d nw xz0x k,kn6od28d-r5f6bpof these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the p9xakrs)r,z /(bzu)0hmz7dv/x oib4 zrevious pitch, the mu)s0bo(zax/i,rhrbz49zk/z7) xvd m agnitude of its momentum is

State Newton's second law in terms of mombl7p qe4 sy p3i /izdicj:41c/entum.

State the law of conservation of momentuvy/o3p/f*2nm h zrn.am.

  The area under the curve on a Force versus time (F vs. ze9yhcgn . :iq- i6r)yt) graph represents

  Which of the following is an accurate st3evp,;5tbrio atement?

  A small car meshes with a laf-kk :og:2w(pe tk9v9v/ryq-ozk . x frge truck in a head-on collision. Which of the following sf 2.kkztyke(vqkrx- w:o p:go/ - v99ftatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other b5* kj16t;g fbioifr( 78t 7pe +sabvnzlue) are dropped from the same height, and rebound off the flo6 b fj pfg7oz78tiv(1e5bsta rni*k+;or. The 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, collides with a stationaryxw acf:,o rp.a-mrr xwuvn2+w.i, ;;a 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 gre;oa.;rfiw a-,.w+c2v,mr u an px:xwrater magnitude impulse during the collision?

  Two objects collide and bounce off ea(dvz yfam.t)i jyzwxf3-d486ch other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collide46byp av;-k ncu/txrjc9m 6,hs head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which sta -v;ty4p u rbkc,m6/ j9acxhn6tement is correct?

  A 100-kg football linebacker mov gdnzq, ,o/p dp.q.ovfp,7d w8ing at 2.0 m/s tackles head-on an 80-kg halfback runningfzqpd7q w. , vp,/8pd. ogdon,
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, 9w aywk-t kn*84ubx; fif the momentum is conserved, then which of the following statements is true abkx ;nu* 8ty4a 9f-wkbwout kinetic energy?

  When is kinetic energy consc+ .wt;* jmaqzerved?

  In a game of pool, the white cue ball hits the;ukddjw vd :5vdb 096t9kcjws(w,un1j /q+ mi #5 ball and stops, while the #5 ball moves away with the same velocity as the cue :(u6 m;k+qk59sc t 9j wd/v1vjbu0 nwd,j iddwball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heav2.0aocp(4q g) n perlky exercise ball at rest, the beach ball's speed after the collision will be, approximatelklp2r).q4n(0 a pgoecy,

  A golf ball travelinn k*tbnr-19ojg 3.0 m/s to the right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed ofn *rtjn-19k ob the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s col();hg(ddhy ml0iliaw 7 fxdn*: yf-1plides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball afteh:p lx ddn a;h 7yl-()(ifigwy0m1fd*r the collision?

  A very heavy object moving l1g4p (b:rlfb with speed v collides head-on with a very light object at resbblf 41g p:r(lt. 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 s nb -qfa2n(jd3jar4a;y k3;ttpeed v collides head-on with a very heavy object at rest, in a j;t;t-3 anb4a( f2rd3 jqn yakfrictionless 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 yebh n 3v8rrr(owdp2in i*x ac/3d.: 1tpllow ball of equal mass moving with a velocity of -2.0 m/s. What is the velodar:ib2 rocw .i38/x dn*p v(rn31th pcity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very .3ph5a oyslg37zm2ap)qne x 4 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 light object after the collisizelyn7g3mhs)2.a o4 qpxp 3a 5on?

  In an inelastic collision, if the momenzam, v*;, 6bgvmar.ha tum is conserved, then which of the following statements is true about kinetic energy.rvm b*, 6vhgz; a,aam?

  Two objects collide vywd x)0q uei-)s t07qtf.p-uand stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides ixgkex,.n;7gr s)+wm8l xm w9e n a perfectly inelastic collisio w8x7w)mn,x ;eg.lx rsek9mg +n 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 experience7k4+naarzj;pc *ks) ws2:y t wda-;nws the larger magnitude of mowt47j n;*w- dp zwya2s:+nka)rc as k;mentum change?

  In a game of pool, the white cue ball hits the #7z562 xtx)5 bnbngad v9 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 ikv0 p::k6nkinf+1 z 52okpgco s false: zoif2gkk6v1kno0:n cp 5kp+?

  Which of the following is a v8d/ys xuu.6*wo twd afrbjs7.6j3m*false statement?

  Tightrope walkers walk with a long4sivyhqh p+m gt62; x6 flexible rod in order to

  A plane, flying horizontally, releases a bombi;tq,u se 8t 7rhay6d2p xvf+z,(zj5r, which explodes before hitting the ground. Neglecting air resi(5ftze hra; i7d y6 zu28 ,x,q+rtpvsjstance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision w*x;mar78lng y as completely*nxry m alg78; inelastic and both 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 f: :*z )gr9zy8 d*wadreg0aeznor a system of particles.

  What is the momentum of a 20ubq00tuw t3lm 1tw9b*00-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is movi4a :/d2vzzrjgk4 gl .rng south at 20 m/s. What is the magnitude of its momentumkd/v a2 4rz:j zr.glg4?

  A ball of mass 0.10 kg isegk. /y0tld j,i.oa uggc0/ /v dropped from a height of 12 m. Its momentum when it strik/ogji. lda.v c/0k/gtey ,ug0es the ground is

  Two identical 1500-kg cars aremj79 x.v2db k -txxsjo:11bu p moving perpendicular to each other. One moves with a speed of 2s:jdtjkbbxpx2- 17xvm.9 1 uo5 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 p- ctx(5ta + wufgd6-akg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/sx5-fd ca+pg(6u t-t wa. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initial wl. dv77 a.x)lb.bvkfly moving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite d. 7kl7)l.f wvvbbax d.irection 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 a frozb72 yww +)aaijfd2 yu)en pond. The machine fires a 0.40-kg baseball with a speed of 35 m/w+i 2 ) dw2yafa)uby7js 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 is stationary yk6 qu+7ewsg :re y7e1oep/f3when the tether line breaks. As a means of returning to the capsule he throws his 2.0 ey7e+36u:wgq1yp os kf7eer/-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 momd jad)k6y y63)mks 6gcentum 5.0 kgm/s approaches 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 momentum change?cg jam)d3y6)k 6dy 6ks

  You (50-kg mass) skate on6fgd(a ld9jo.(lwq a d)) zh4v ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, wh()vdj4gz(dla.l 6wq ah) df9oile holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moyyfhc.s 5;l 9wves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycl y. ylfhw5s9c;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 stopph-k5zz )4bu xe;n k/afed car that has a mass of 1500 kg and they stick together. What is the4;x -)zeau/ 5k kbhfzn speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowpsu e/ vp/yy/q*ec81 ned 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 releaseq pvy/ n1/cep* y8/esud. What is the speed of the two cars after coupling?

  A railroad car, of massb.mcl6m9 2hcmv;jj2 v 200 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stv9jlh;.2vmm jc6cb 2m unt man drops 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 walks on a 100 +osw tlk+(p*p-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respec(plp+*kw +otst to the shore?

  A 4.0-N force acts for 3.0 s on an ojws i2 +iahh4-bject. The force suddenly increases to 15 N and acts for one moaihhsi-4+ 2j wre second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force av/th3ul 3dgl6+)i th ncts for 2.0 s on a 6.0-kg object. What is the object'6l3htndt ig+lv/3 hu )s change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with s.j)0z; /febvduqayhdkw(3 3a brick wall and hdqf/ze d0 3aw 3ubs()j kv;y.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 back along pq*k-3evxq4sd *+ zdw the same path, and 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 v 4dkp3* szde-wq+x q*the bat exerted?

  A 0.10-kg ball is dropped onto a table top. (mqvnm6n4 c: fThe speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respective 6n4 :nvmcf(qmly. 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, withta. iib;fe q8-fl )b/ b3+yarq a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. W-3i.fqbale f8t b /+i;ayr)qbhat is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order isooy5sv 2sgehs-0lk7c./1 z to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per secondyosscvz21le- 7k .sh5 0oisg /, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizona th01des rl4/*g 4ezatal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what averrlsea4/ t e1ah4z0dg*age force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s afterw38jsy2g( a kdqd+s2 x3vs cb2 3.0 s, when fired straight up. What average thrust force does the rocketd(3saw232vsby 8 +g kcdqjxs2 engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially 49o veay o(hdcb -x1l9rktf6zj 4rd4 .at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has 1y6ddh k4.a j( zo94vrc-9ofebr 4lxtmoved 12 m?

  A 3.0-kg object moves t(lhs6u wn2h*uc , ut-vo the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after theulv-s2h (u,t* uhn6wc collision?

  A 0.10-kg object with a velocityq/eju ltoh5xnw+;xq3: 0xke-1 m nx,f of 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 ve qfo, 3: mqk;-en/xw+ul0n ex15jtxxhlocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300t 5-j, ahub*mh 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. What is the velocity of 5-*hbmj tah,u the block right after the collision?

  A proton, of mass m, at rest, i+no1ah8f.9/4 5ulnrw jdxlb gs struck head-on by an alpha-particle (which consists of 2 proto54 xnjulofdrl+ a b8.n/ 1wh9gns 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 equals the proton's mass.)

  A 50-gram ball moving +10 m//v5*7eiuk u sre2cee+1b8o wqs collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is eq7/+se1r5*2b8 vweeki ou uc the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a spv4 .d*dyxqecmy3s */d eed of 3.70 m/s collides head-on with a 200 g ball sitting at resvd m3d/*.s4 qcdxy *yet. The collision 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 speed of 5.0 m/s. It collides head-o6 o0mc;*9 7 moj2kga9rjkakzg n with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed9j6zm 2 k*0 7oaromkj;ka gg9c of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s cd:muxe+bc p8+t wdfb *8q1o-,it4 lmzollides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during thieu+ 8 b*d1m8wqlbpot4x-tzdi+f ,m:cs collision?

  A car of mass m, traveling with a velocity v, strikes a parkeja-55iyjft2 x 2/1n rwhyfsyw.vv6(nd 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 lo nvsynfjr2-ay(t62if 5xwh 5jyv.1 /wst in this collision?

A 15-g bullet traveling 213 m/s in a vertical direcc2 h dbh-o*kbq,,wdf 2tion buries itself in a 2.4-kg block of wood a rest dirfhbdqkd2*c- ,w ,2obhectly 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 :gipk7 li(d )wyh:, awpw)qk8east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick toge)p :k8gwh 7w l)yi,wk ia(qdp:ther 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 collidesl0yv:v)b3 llmv3 4 muw with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (Slbu)vw43vym l0l3 : vmee Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frh-4bcla)f24ko1 icmqg.rtu : /5dcsg: 7 ewiaictionless 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 collision. What is the magnitude of their combined momentum after the iu.lr7:bcgmhcg tk)5fa- /qwi1dc 2 a4ose4:collision?

  A small bomb, of mass 10 kg, is moving toward the North 684knx( ygnss 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 velocitk86y 4 gsx(snny of the third 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. * 9*aagn0yqi kj6nmm3 Where is the center of mass n 06i*ykqajg*mm3an9on the x-axis?

  The center of mass of a two-particle system is at thw( f-430epa, n tu9: twknawjue origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mas- a0, kuaw4 t 9tnj:e3fwpnuw(s of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2-b24bzk nu 0 /cekn0dh.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of massz0 c2/kn b -uhb0n4kde.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m ,d4vkxnx 2k;23* ucflur1h vv), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of tf2uxvrxv3;14 2 kdn,vh klu*che system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at (12nw8r qvd2wf7 a18 qcp+jui/e :, 0). What are the coordinates of a 4.0-kg mass which will result in tf2u/c:8r8 q wadpwn7qe+ivj 1he 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 C-t0aimoo .2z: xdnwoy1d22t lM of a whole leg including the foot when the letnam .2yzodx210wi2: dot-l og is stretched straight out. Assume the person is 1.60 m tall.