What is the SI unit ofb;yn. ol+ :vyu momentum?

  When a cannon fires a cannonball, the cannon will recoilpr,f9ky :5t+pdy:xa1lrd ;a k backward because the

  A freight car moves along a frictionless level.e5ovbh3 mg: f railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocith5 .oem3fvb:gy of the car?

  A child falls sidewa m95fxa 1nr:,fdoir:fys off a sled while sledding on frictionless ice. What happenf:rrofm9 dni,xfa15:s to the velocity of the sled?

  A rubber ball and a lump of putty hav)-s6 i)p5diefhp9 wlse 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 stiw6sfp-)isd phi9l 5 )ecks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a mom9xrvpx5 ph1i3 entum p. How would you represent its kinetic energy in terms of these two quarhvxxp159 p i3ntities?

  If you pitch a baseball with twice the kinetic energy you gave it in the prs6vkff6j 8 ;djevious pi ;jf s8jf6v6dktch, the magnitude of its momentum is

State Newton's second law in termo axujm/ ewaq7p+,*q3ns2f,rs of momentum.

State the law of conservation of momq-i(hap f( 7wn;og t(nentum.

  The area under the curve on a Force versus time (F vs. t) graph reprxy/0 *xlhmq3j+uwy3 mesents

  Which of the following is an accurate sxf l 1mn2ye3y3m4 q+catatement?

  A small car meshes with a large truck in asnclg(z5 we,+ head-on collision. Which of the following statements concwg,nz5el c (+serning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are arv:-q)l f5cjdropped from the same height, and rebound off the floor. Thelr -:5v) facjq 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 ( qe xf+ ow,wqrk*x ;bjw48dp+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 tow;oq+ 4xq xwjd befr (w+*k,p8 the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bhxoz2xpc uy51ug: d))ounce off each other. Linear momentum

  A 3.0-kg object moves to the re11nrf fz qgqwe++ ,:tight at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correctg+ fznere1 tq1w:fq+, ?

  A 100-kg football linebacgajl4js0xrm+qbkq d(;1,;e. q6 tqivker moving at 2.0 m/s tackles head-on an 80-kg halfback runn6 qivqjqrqx;e0;+jk4db . al1g(ts,ming
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if()bi it5mhlkpsat*hx5+g 7 8w the momentum is conserved, then which of the following statements is true about kinxhw 7al85g k5tshp(b *iit)+metic energy?

  When is kinetic energy 1jgsqol / 0p9vconserved?

  In a game of pool, the white cue ball hits the #5 ball and stopsanw32l- l zehsve7:1 w, while the #5 ball moves away with the same velocity as the 1h-z :7aesel 3vw ln2wcue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a h3 at euxzu:*,i ;j8sj1izoy94l: goukeavy exercise ball at rest, the beach bal;k *j3uzl4u e1x9:j:ioztuya ,o8 isgl's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right cot)e 11btk hxib3)1b tvllides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic,e1t) 1b3k x)1bbtvhit the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with an ideluda7;4f xt4y ntical ball at rest. What is the speed of the initially stopped ball 4xtf a7 4;ulydafter the collision?

  A very heavy object moving with speed v collides head-on with5j wjg t n..dpu k,dfsq;l).8c a very light object at rest. The collision is ;tq5 dln . .d w,f8s.ujcpgj)kelastic, 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 movinya6q8y.w 6 whjub5lb:zx0e1 lg with speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collis ya8.0yewx 5 j1b66uhlwz :lbqion is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity a f1no 25l/xyqof +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocitxn52ql1of /ayy of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving wi4dtdcxm-bgn*4 )jr oq6 t57g yth velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there 4rt)5g o -dj6y qtdcmgn*xb74is 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 d 9e9y b;izbn fy2e-*lof the following statemen* zdnyef2 lyb9-9i; bets is true about kinetic energy?

  Two objects collide and ag4) m;/jz+nau:tet-)nw zci stick together. Kinetic energy

  A 3.0-kg object moves to the r )jn3iize8y g3)3wd agight at 4.0 m/s. It collides in a perfectly inelastic colli )a3eigzj)33ng wiy d8sion 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 :0z.bt e qg.p ; cc8qmyme6vg1object experiences the larger magnitude of momentum b0:geycecmq;m. t .1qp68z v gchange?

  In a game of pool, the white cue ball hits the #9 ball and is deflec/l,hl iq n 9-a2q3jpph4; tquxted 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 y cv0/iu sw;))amoe h*t7sue( false?(csu)mv euow 7s)t i*e;yha/0

  Which of the following is a false statemn7*7w :x 7wulz:xlfk yent?

  Tightrope walkers walk wio5t*tsvzpu l-h tqw;7 t 797etth a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before hit, o4pwsks-u( kting the ground. Neglecti(wo-u4,sp kk sng air 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 collision wabi s;0(iqy bff/i 0z:hs completely inelastic and both car 0bq; z0 is:ihi/(yfbfs 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 particles9ddmrv8. m1 yv.

  What is the momentum of a 2000-kg truck traveling a,(uog2fko een7i +ff eqyi1*4t 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is th(zh v)(ow,scj1x ac) xe magnitude of its momentumvha s))(,1(o zjcxw xc?

  A ball of mass 0.10 kg is dropped from a he4 (u-+t:8fdl-p ;9reuknw as4igpriright of 12 m. Its momentum when it s 8 rwf944pt- gdrierap:sniu ;ulk(-+ trikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each o.r9)mb, h-rocem3n 6th w (qovther. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What iserohtc.h(mo3-nwq6m vr, 9) b the total momentum of the system?

  A handball of mass 0.10 kg, travuf6 ttpkbhf80 f h 374:pft/zvfmlc 4.eling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the chan .:fmft8p0pkuz ft3 4h7t fv64hfclb/ge in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is str-kf 0gs(vi m,0)1w9j jt.ziok.rspew uck by a racket causing it to rebound in the o. 1rt,vgjo9kwsw(0kzi0s pm)ejf.i- pposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine hau3 )8wgt27zp8npy r .f.nuo(excluding 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 speed of the pitching machine? (Assume negligible frictifz.o3h 8a2ptnruu wyg87 n) .pon.)

  A 70-kg astronaut is space-walkin+o5jcb x u/d;ig outside the space capsule and is stationary when the tether line breaks. As a means of c5 d /;uoijb+xreturning to the capsule 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 appnqwjsky0zmcx hrz;d )5*awk0 ) y 9q(+roaches 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 mom sww(* +nj5k 09rkh )qz)qdc zy0ya;xmentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to grelsv+ 51 0nd ilojp;+myet your friend (40-kg mass), who is standing still, with open arms. As you coli0jld5 ovlymn; p+1+slide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg movhipsqz;z;*)g i4 l h6t3yw:q nes to 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 total momentum after the c):h3 izsq nl qty;*gh p4;w6izollision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that has j- teqv-z;iwepf s1y yej9*/4a mass of 1500 kg and they stick together. Wqesj-/ 9ei;wzj -1pyyv tf e*4hat is the speed of the cars after the collision?

  A railroad freight car,tf roxt-s(5:twl3 * txpzpx3; mass 15,000 kg, is allowed to coast along a level track at a speed of 2.(5xf*ptt :z wt-ro stpx33lx ;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 after coupling?

  A railroad car, of mass 200 kg, rolls with negligible frx e1d4) wmf-:i3pchl7 y5zdkjiction on a horizontal track with a speed of 10 m/ fw:mx)ez4jyh-c3 7ddl1k5p is. A 70-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 100-kg log at the rate of 0.mp(/q o-.hn hc80 m/s (with respect to the log). With what speed does the logpq(h/m. c hon- move, with respect to the shore?

  A 4.0-N force acts for/d/4wu ,rteq v 3.0 s on an object. The force suddenly increases to 15 Nq/uw v,r4d/e t and acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts dp.q1niwzzt kgs wz7 u-2e g.76h/z v(for 2.0 s on a 6.0-kg object. What is the object's change ofke2z(q/pvgz z -uwhtwn1 d6g7zi.7. s velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with ) up -n9/osk 3tbsa wbiltw)6)a brick wall and comes to rest in 0.20 s. What is the average force the car exerts sit)b6)n pl-)b k/w wo9sau 3ton the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You h-az 0loxem6b0x/4vby it the ball back along the same path, and at the same speed. If the bat was in contact with the bal lz x60 yxomab/ve0-4bl 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/fkzz) ( 6pmtk. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s k)mkz(6/tf zp, 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-grw58n3ws+ a qdqam bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the avera3 qw8qn+wda5sge force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order ,( x sp2(hvxeos56jbu to knock the door down. This requ5juv( oxx(6, bsehp2sires 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 kg8y0mipojvt9:4ja;c q(*r f ha7esnxs6ics ) + per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what ayx7;p94am+(0v8o rs 6 * )j sqjianeh icctf:sverage force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity o+*e:rvc mi(sb f 40 m/s after 3.0 s, when fired straight up. What avera vcrm +:bes*i(ge thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kgsx2ccuk me 3488 l)akg, are initially at rest in outer space. They push each other apart. What is their separatie3ac2g)su8k clmk84x on 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 *d5m n,3ziscc5h*l;w4ko eqqperfectly elqc 3osw55i qd zlce;*,m*hn k4astic 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 veloc+ sfytyua5hryv (3. ,aol 0y:1u. vfkeity 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 velocity of the 0.10-kg object after coaf(:3ar ufk lue,tyh0.syy+v .vo1 y5llision?

  A 10.0-g bullet moving at 300 m/s is fired into ajg2cm /0 mdn8uy5:u4 q98ae9stkzd vw 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 the block right after the col4v8meu0ma:wdk cntyg2 udsq9 59/zj 8 lision?

  A proton, of mass m, ac+wupa9e8ibtdmtci6 k75j *)t rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the co87)atwd cckb *pm ue9j5iti+6llision 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 collides head-on with a statioefw fijwj,5un ;d;t/ ,nary ball of mass 100 g. The collision is elastic. What is tew;jt /;fn5 ,diwf,juhe speed of each ball immediately after the collision?

A ball of mass 400 g moving toward h+ d, sy4l/mpovv(towpu1;v ,the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly e1 ws(my4tp/;,o+,vuvdvohp llastic.
(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 coq3hhgh. f909yj *0,giu ud vcnllides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed o0g.9hu*0dguhv c, 9q ynjhif3f the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/sf *8 ytsyec d1sfzi0 ;z aqc,)0yujy11 collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost duriy8c01c) zt fyy0e1ya jd1qs*zsf;u,ing this collision?

  A car of mass m, travelid(dkkn g 9ad** ):zym+a1we lb8to0dsng 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 fr b* tm:z+ k0gskdo(*dy)d lwndea1a89action of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itselfo(nn-ako h 4-g2iv/c*fi dp1-h,tguv in a 2.4-kg blu- /-k,vipcnn-g oafovi dt12 ghh 4*(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 90.0 km/h east c*5- dwbd. ssmhollides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-ds.d-s *wbm5h1.) What is the speed of the cars after collision?

  A 1500-kg car traveling o+y3m ,o v5offcyok3q*or 2e )at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The 2 *3 35oe,k f+v) oofomcoqryytwo 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. Objech mps ngtoy ,(3n3)m1at A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a o1smngp3 )n y ta,mh3(perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward o*a6o 9qu.w5hf z4gplv( eq+ethe 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 a speed of 10 m+q eof w6*ahzu9e (.lop5gq4 v/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 mass sits at x dhs jy7q, +hgt5 y1o0q ax.fu7= + 21.0 m. Where is the center of mass , dg t 0usq+fyq7h5ox.a17hjyon the x-axis?

  The center of mass of a two-particle system io/ mn8 l,2kym)bwom(os at the origin. One particle is locatedl )no/omowm2,y(k m b8 at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0),-5 /wx8v.gq8+v 8wyzmrf olfu 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of thewf+ ov xum8r8y fq .z5wg-/8vl center of mass.

  Three masses, 1.0 kg, 2.0 6b p6-b7pvwbz n)de 9kkg, 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 cen z nvp)wpb7 bbkd-696eter of mass of the system?

  A 3.0-kg mass is position (*oc-zxm/syn(7a efged at (0, 8.0), and a 1.0-kg mass is positioned 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 t sy(e-xcf7*( /mo agnzhree masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position ofhwh 6gunha/yix z8,/5- bsl5q the CM of a whole leg including the foot when the leg is stretched strai s/bz yhgi6 h5,ah- 8l5wnxu/qght out. Assume the person is 1.60 m tall.