What is the SI unit of m2 o.:3 ;vwg;lutjo7 nh9q us;- hqjsdlomentum?

  When a cannon fires a cannonbs h,,ntjm489n) sijoe all, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constant speedkta1hf i d+5g/. The ka 5+itd1/gfhcar is open 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 sled wh7 qlskom072ytile sledding on frictionless ice. What happens to0l2qy7m7 ksot the velocity of the sled?

  A rubber ball and a lump of putty have equal maspiyt:9zh1 bmjf0:5a 7f3dis q s. 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 greater momentump7i0ha1z y i qt5s:39b f:fmjd change?

  A sailboat of mass m is moving with a momentum p. How would you represen4 acn47upaj 3ct its kinetic energy inp43 c74n jcuaa terms of these two quantities?

  If you pitch a baseball with twiceuq+6s0)v zht z the kinetic energy you gave it in the previous pitch, the+ 6s z0)htzvqu magnitude of its momentum is

State Newton's second law in termy/8l x22s8 .un dvo+v6he oau(ybj 1des of momentum.

State the law of con;ypenhem(wi 14 m wu5/servation of momentum.

  The area under the curve on a Force versus time (F r5b)q diau-o0yt9y j-8b/zg. rei 4lj vs. t) graph represents

  Which of the following is an accura6(o8yhfk p l8g(ww i4ate statement?

  A small car meshes with a large truck in a head-on coll1 kr8x +9eduvdision. Which of the following statements concerning the magnitude of the average collision for d+dukr8e9x 1vce is correct?

  Two equal mass balls (one red and the other blue) are dropped faziacgjpdx9,.sqs/6 o/:x8 d +0 dhj krom the same height, and rebound z:0ac98ijdd g/ q/ .os d ,kh+xsjpax6off 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 floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stat. niz3jp *gz5:.m* qygiurrrv(t-+tn ionary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling b3u:g5.*rrii t n(vp.+g*j r yzm-tqz nall moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Lin4 -*9di ccdavu3h2 x u;qopv(year momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collidfh kbjqbc /3t1i0xu43 es head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which sta c3x3i4k0tj /ufbqhb1tement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackle fbdqq2 w cr(+,*k0furs head-on an 80-kg halfback runqk*02 +cdruqf,( rb fwning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserveafznb q93sv0z k d6x08d, then which of the followiq90szn30 6b8 vxkfadzng statements is true about kinetic energy?

  When is kinetic energy conserve :5ud:xz9nj8b vhw*uyp:a p) ad?

  In a game of pool, the white cue ball hits the #5 ball and stops, whujlj62 tpgyvjup5sw75;.tk (fd;)m dile the #5 ball moves away with the same velocit kg;py )j62t7; jlvt.m5 f duu(jw5psdy 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 collx:i+h ui 0gs1cides with a heavy exercise ball at rest, the beach ball's speed after hux +i1i:c0sgthe collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision with7z;ui pvz5g2d a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball v7p;dz52 u zgiimmediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically cuemnloyd x8h3 -(r6+with an identical ball at rest. What is the speed of the initially stopped yo nu(r-6le+c3 hx8d mball after the collision?

  A very heavy object moving with speed v collides head-on with xmps/tc1u)+cy*y7p61wl lt *9 )i bxze edt,o a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the spyw se/ e*cpt71 d)p 9u6xolt tb*l1)iz my+x,ceed of the light object after the collision?

  A very light object moving with speed v collides headk4up92o dh ;mq-on with a very heavy object at rest, in a frictionless environment. The collision d9um;qhko4p2 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 collidehmh (9t *tk pzvt/pw .h :/e0( /dnllj.j.avsps head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball afsa/9v: 0/ttz/*h . hw ln(j .hdlpvt(epkpjm.ter the collision?

  A very heavy object moving with velocity v collides head-on with a very lighq7 xepgjv o-b(e 5,1xht object moving with velocity 7x o,15hee-vjx (pbgq-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, if the momentum is conserved, then which of thb5 pwf )qs)vw7e following statements is true about kin7p)s)fw5vw qbetic energy?

  Two objects collide and stick together. Kinetic ene19: )vwg efollrgy

  A 3.0-kg object moves to the right at 4.0 m/s. Itdvk7,whl s-5h5nm l4fja:e6o collides in a perfectly inelastic coll f7lawo,- d vjlhn65sk45e:mhision 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. a6v1es9nho i /t;x*r8 tlf1tuWhich object experience livat8*;e/1u9xo 6h rft stn1s the larger magnitude of momentum change?

  In a game of pool, the white2(kghnd:f-qtd* qy 6mbag6g 1 cue 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 statez otx .88gd(zj6g+la ements is false? o(ez6 l8gz taxj.gd+8

  Which of the following is a nnfmjsffy2/ ;myl(/ ww1co8dxa9 m 0)false statement?

  Tightrope walkers walk with a long flexibzi9.yz uy-* iqz -pc+cle rod in order to

  A plane, flying horizontally, releases a bom6s -o2mx /l : btmr1khb;xif9mb, which explodes before hitting the ground. Neglecting a/k61l9;2b r shf -m:bmtoixx mir resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The colljl r(n./af wuqz n:gbwu288-sision was completely inelastic and both cars quickly cawbz(/gua8j8n .2n-wfsurl q:me to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's secondtvq-tbqrg/e o/v27 b + law for a system of particles.

  What is the momentum of a 2000-kg truck travelingdu a* kaw50gjw1*9l8 ; ousnnt at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What 8ou-g dxl,s dst mj84+is the magnitude of its momens 8luos,x td+-jm8g4d tum?

  A ball of mass 0.10 kg is dropped i 8 tz/exj2 n2j5t5mspfrom a height of 12 m. Its momentum when it strikes th/5 8zej sj52m 2tixntpe ground is

  Two identical 1500-kg cars are moving perpendiculara cacir)der.ho+j91 *ll/ wzc6-f :bk to each other. One moves with a speed of 25 m/s due zjc)b. a1w6 e /:*c i rfko9lr-cdl+ahnorth and the other moves 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, 26x-ojf8nvvt+ m7ol1 kcrk)wql g8,fz v al(8strikes a wall and rebounds at 24 m/s. What isavxmz7f okq8o2 jgkfn1l) 8-lv(lvrt, 6 8+wc the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by a rad9ltl3 8x4fu zcket causing it to rebound in the opposite direction at a speed llftux89z4 3d 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 froze8-b6 /;f sonf2izjdikdd 28dtn pond. The machine fires a 0.86skid t ind d 822-;fj/dfboz40-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 cb-hoom 2s rx7/w9g* orapsule 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 o sgr27ox/ow9hmo*-rb f 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 large o7bxg)t1p u2bsbo 46 , ue4bybebject at rest. The small object bounces straight back with a momentb p4ue g7xoet2b4b ,ys16b) buum of magnitude 4.0 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 greet your friend (40-kg mas 86bu ;j(rfqhg-gfz 44 v2zssrs), who is standing still, with open arms. As you collide, while holding each other, with what 8sr6zv 2uffs;4gh( rb gjz-q4speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straigi* popho/5p1 eht road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What iie1op*5 o p/hps the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a3/vlq /lwnnpq;+y9w+ ps rv l5 stopped car that has a mass of 1500 kg and they stick together. What iswns95q v /l/plyw ++rlq;vn 3p the speed of the cars after the collision?

  A railroad freight car, mass 1 2*7 nn2xfh94g tiuwl.exe ;sh5,000 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 released. What is the speed of the two.7il wstx4 92ne 2e*uh;x gfhn cars after coupling?

  A railroad car, of mass 200 kgrem(setijh.t.h/ kt23rb2d +, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A re3/metdh.b jik h.22 s+(rtt70-kg stunt 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 100p*f *eq/l tylv1snl24-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log mo2lsveyl*/4p q1f nl *tve, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an objey3g s-kiu0ak n2/da2z3.ply ect. The force suddenly increases to 15 N and acts for one more second. What imps3kzng d2. l ui3/a-yke0 a2pyulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. ch+l-8ani5 1aqc s0ui What is the object's change of velocity?+ iln5a-i c8aqs0uc1h

  A 2000-kg car, traveling to the right at 3q cf.uu- 9w,t6pfp za,0 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exerts on the wapaz t,f96wcu p.,f- uqll?

  A 2.0-kg softball is pitched to yo4+m hhq e)xe/ kfpi7e1u at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is pe4e) /ikh+h17 eqxfmthe magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a lqze*; 7)k*zfgnpy 6 btable top. The speeds of the ball right before and right after hitting the table topky6*gbe)l 7 qpnf*z z; 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 table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, with a muzz27jv,akvt y2rk)6+ hurwzzg3le velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average fot,2y7 a 6vrz3)k2j kz+grhuwvrce exerted on the machine gun mount?

  A fire hose is turned on the dog ae.0vtz0 gew; p/lc 7pu1m*6 lolba.or of a burning building in order to knock the door down. This req.1v m 6cl70zpplougbt aal; 0g/eew*.uires 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 horizontal drainpipe at the rate of 120 kg plg)xdwd. 3x4mwi,t nw450 zader minute. It falls 3.20 m to tw.t5a0m )3xidgwl4,dn wz xd4he 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 9y2 f0/v tdbr/tax oa4a velocity of 40 m/s after 3.0 s, when fired strv 24tdaarxftyb09 o// aight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at6z v:2 t6u 9nj(vc/1-qmj mtgxny8bqu rest in outer space. x cj1n v/tynu98 6b2 (q:gvmmqt-zj6u They push 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 colaiy hk84s/ lcr3s *,qwlides in a perfectly elastic collision with a 6.0-kg objeklh4s iw c*/3 q,8ysract 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 +lvzkk * .sa7cxx 6f2l3x 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 collision6l3skxa x* kfcvz27 l.?

  A 10.0-g bullet moving at 300 m/s i7-h l9 lynx6iis fired into a 1.00-kg block at rest. The bullet emerges (the bullet does l6 iy9l- ni7hxnot 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 rum /6xbga 38u*nwssdk*kf ,*qest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what spe8u /a*kwgsu 3*d mnq,x*s b6kfed 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 collides head-on wit/jhfxjrb0 +5qazi:se ed7w+ 6 h5k0bzh a stationary ball of mass 100 g. The collision is elastic. What is the speed of each balex7/i rb0k5hqj+zz0 wdj eah+ :6 fb5sl immediately after the collision?

A ball of mass 400 g moving toward the east wit27, saq7,j8 jd2u mz sh7mpfnxh a speed of 3.70 m/s collides head-on with a 200 2 u 78dafzpj,7nm7m2sxj ,qsh g ball sitting at rest. 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.xz 2 31)d odjj(f,pnuk It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what isn, )dzjdk12f(xo3ju p the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a inb-b 7(c) e cv ol9p83(mdbru32xffyspeed of 4.0 m/s collides head-on in a perfectly inelastic collision (m- d(nbv bl3ecbf)f3x cuy pr9i78o 2with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, striglv xii ke z+ 1 3cw(o692p2sha,zl/ktkes a parked station wagon, who's mai3,x(l/ gz1pt6 vwakh + zilks22o9cess is 2m. 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 traveling 213 m/s in a vertical directiozd3 qezd l4*.rn buries itself in a 2.4-kg block of wood a rest directly above it. As qez d. lz4d*r3a 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 3000-kg 7dd9hh c )ck7lx6o )njcar traveling at 60.0 km/h south. The two cars stick together a7o)nc6dj 7kx )dlch h9fter 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 col;t5m9b duw(xjlides with a 3000-kg car traveling at 60.0 km/h south. The t59 wjx(tb dm;uwo 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 surfacef5 rl.6 ,mpc5avvs(aj. 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 aft.fl6 , cm(5avav5jrp ser the collision?

  A small bomb, of mass 10 kg, is moving toward the North wl2y:dt:8uewp .rw kx 5ith 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 ow.2kly: erx8:wd t5puf 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 masm7 s,t4thjetj a*:vg5 d0 x9ets sits at x = + 21.0 m. Where is the centerm54xvetd9tat ,j *0sjteh : 7g of mass on the x-axis?

  The center of mass of a two-particle system s4z9tpi0 1 n8t,xoy wlis 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 t,0xt p4ylit9o1zn8s whe second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg afj 6p/j.jc*2v jll- qut (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates o/6*-j.pfl j2jlcvqju f the center of mass.

  Three masses, 1.0 kg, 3 q ;c* a3omg/tl9ho:6wwr;qyou /acb2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center hmq *rtwc36g ; /y cl;qabw:3aou9o o/of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kx2 t5(bgnyu1lg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg gnu b(x2y5l1tmass 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 including th. uzmpdc,, z1je foot when the leg is stretched strai zu1p mzj,,d.cght out. Assume the person is 1.60 m tall.