What is the SI unit sn7no*-(b(.bsiwbkc of momentum?

  When a cannon fires a cannonball, tuxfo7 errk r 2- h7j3/8agm(uohe cannon will recoil backward because the

  A freight car moves along a frictionless level rml+z az kpvc 2* 287u;jsfh6xrailroad track at constant speed. The car is open on top. A large loadkufp*7ca h6;vsrmj2x8 +z2zl of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled )rlsux2 n-dg,-nud1)jyxt 0rwhile sledding on frictionless ice. What happens to the velocylx, d0druxn-sg))jn r21- u tity of the sled?

  A rubber ball and a lump of puttljbn zh9xqy6nmt ;1 *s5vb.v/y 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 ex1xmsbjnql*5vyhb 6;.zn9/ vtperiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you repres 0rvgfcl:u+hxl) of* 3ent its kinetic energy in terms of the0r ho)xf3l:fg*luv +cse two quantities?

  If you pitch a baseball with twice the kinetic energy you gave i18, g-g)nn rp 9uhitbit in the previous pitch, the magnitude iubh ),gn-8gi9n1 tp rof its momentum is

State Newton's second law in ternlwtgj9 gn,pjk,6o q 2b l6/+bms of momentum.

State the law of conserv aau kg*30:wsf*;qgso ation of momentum.

  The area under the curve on a Force versus time (F vs. t) d quw 8c) ec9f*p.co1qgraph represents

  Which of the following is an accurabkg(0)- fwn2oo -wrv6tmg a mtd2 wz7.te statement?

  A small car meshes with a large truck in a head- /rr7k* z;xcomon collision. Which of the following statements concerning the magnitude of the average collisionx*moc7k r/;rz force is correct?

  Two equal mass balls( lt )g+uu(lr;naig:n (one red and 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 durinun l: )runi+t; l((aggg its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary boxny wyka e*an4 -a-7i7wling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which objecnaai-ke -nwy 77ya4*xt experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Linear momentum+kzkmbp+z *ouj/;d s6 xmvf6,

  A 3.0-kg object moves to the ros7;ego7o+v edd -, r-llrb;yight 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 correct, ddg7;l7+yos-br ;vro-e lo e?

  A 100-kg football linebacker moving at 2.0 m/s t2nzbex0t2jo2k us .,thk+7 b hackles head-on an 80-kg halfback runnb7 +jxk0tth2,z s ekh bo2nu2.ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, i8 zl;c iugpbhwf egt*+nc.)13 f the momentum is conserved, then which of the following statp.*8)nhcuggb lef3 w+z;1ictements is true about kinetic energy?

  When is kinetic energ 3qi a,k7h8bory conserved?

  In a game of pool, th gzy(nlthsr/3 8n*qt7e white cue ball hits the #5 ball and stops, while the #5 ball moves away withhn/gs y*3q(trz8l 7nt the same velocity as the cue ball had originally. The type of collision is

  When a light beach bc /itg1 y3r :tad/mrwod/1gv ka0y (3mall rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach303/ 1r o(g ta/c gik/dda1m:m yytrwv ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in ag)wim75 yj6og head-on collision with a stationary bowling ball in a friction-free environment. If the collision w5 o7yi 6mg)jgis almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speeohm;x4 z sb5q:d of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball aftez 5boh4sxqm; :r the collision?

  A very heavy object moving with speed v collide.18b .u q ;(ncxe yuhnse -xpd():ojlos head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object af enj cex(.(s y .bx- 1nudqhpul);o:o8ter the collision?

  A very light object moving with speed v collides head-on with a very heavy obor d5*rqu ,t6k+7rncy ject at rest, in a frictionless environment. The collision ro+cku5rdtn*,7 ryq6 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 yello9kf-plny r p t7)b9:hbw ball of equal mass moving with a velocity of -2.0 m/s. What is the 9l)hf p9nb:tp-ybr7k velocity of the yellow ball after the collision?

  A very heavy object moving wincn4ti7k3q+oy fa 5 -uth velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is n ft7ky5u3ano + nci4q-o friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momeacxm) e j6:dk5ntum is conserved, then which of the following statements is true about kineticme :x dj)k56ac energy?

  Two objects collide and stick together. Kineti(wv0qp v*n /srymr-w(b+p nr79 hmfgve0vb+ -c energy

  A 3.0-kg object moves to the right at h); xu2qa;npnhby.sik29; v p 4.0 m/s. It collides in a perfectly inelastic .qh 92pn uhn2);yab;v xiksp;collision 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 expet/vo g(8j8 qw+x(vlsoriences vst/l(j8 +w8 oqxgo( vthe larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball anrtwynp/c*n+ 0 d 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 andl)ok4zs81 -lxjmb 4.fs+abj k m. Which of the following statements is fals js-kb 4xl4)kz8 +fola bmjs1.e?

  Which of the following is a false sta tv4 0gq j6duvp4b6b*ytement?

  Tightrope walkers walkq0jhoiqa /zs mp43b 5e76lsw . with a long flexible rod in order to

  A plane, flying horizoz7zri(t(uw mv6 :h9na7vloa*j7 a me5ntally, releases a bomb, which explodes before hitting the ground. Neglecting jr(:zt7i (ale 7u v v9mh*6wa noz75maair 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 collisiokh7h94 6 u:nk2f;iwawptam m4n was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocitkhf ;hp 62aumk: ww4mt 74ani9y of this system's center of mass?

State Newton's second law for a system of particles.;cx h,yy23bv u

  What is the momentum of a 2000-kg truck traveling at 3y4hhq20(21 t /0wqnwtmb0zbsdo)l us 5 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is ( 3f2;dmu nokx( nom7-oph9 :lryxmiv0. hk ,kthe magnitude of its momentu( 3up :,-hf mnd0k;xkoon2m 7xm (kvrio.lyh9m?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it sjl( g oxd19ou,trikes theul dg91o(o ,xj ground is

  Two identical 1500-kg carsk*uo.qz)h mq2wi v -+f are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the ot+fwhzq.m *)k uivq2 o-her 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, strikes a wall anr e 58jlewmo)ji+0-rqd rebounds at 24 m/s. What is the change in the mo jr0w+) q jeml-e8ior5mentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by t n -f873;w3cdcj xbxxa racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of th33x n ;-8cxfwb7cxtdje ball?

  A 50-kg pitching machine (excluding t5oc qjpp;) ,c : 4y3w:pf2iaay- mhmdahe 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 ac ;p)o: dcjpmy354y awiqpm-h2,f:amachine? (Assume negligible friction.)

  A 70-kg astronaut is space-v3:c3u7 ,hlmwnzgjg 9walking outside the space capsule 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 wh,wluchj9 mgvng3 z7 :3at speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on tnn* h .uph4s1a large object at rest. The small object bou*nputhns .h14nces straight back with a momentum 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 mass), whx:t m,et0+qrno is standing still, with open arms. As you collide,rtt :n+mqe0x , while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straightcu)o-ytk5n p ) 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 collok ypu) nt5-)cision?

  A 1000-kg car traveling at 25 m/s runs into the re c 6d+vitmpp+(ar of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of thcdp p(+ +mit6ve cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level track bl; ,stqpj1row.56 bmat 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 6.1b,b m; jspoqwtr5lof the two cars after coupling?

  A railroad car, of masn9e)jx pdk+ yx1e;a 1os 200 kg, rolls with negligible friction on a horizontal track with a speed of 10 m/s. 1dee;n x)pk aoj9y x+1 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 nue)r* cej . +s6xk9mlat the rate of 0.80 m/s (with respect to the log+cu kr x n)e*l6jsm9.e). With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an objeci0-tuz r*2kw8ydg/ ;je,c tczt. The force suddenly increases to 15 N and acts for one more second. What impulse was imty/e wtcd*;zgcu2 0-j ,k r8izparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-ubo,a9a+01 j bqici *l;not 7ukg object. What is the object'sj oiiaa*t,+ 9c 7bnbuq uo10l; change of velocity?

  A 2000-kg car, traveling to .zgyit3,ro2q; ls ai7 the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What oiz3tayg q7isl .2,;r is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you 7vpe naef 5h12avu d5yi3to78at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat viaf 3vp127t8dy u55 7eaenohwas 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 y(dwqbumn3m. t:087c kz +ffztable top. The speeds of the ball right before and right after hitting tft0d3.wz(f 8c:+yu qz 7bmnmkhe table top 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, fhikfy 0q:/ yzeu k5o.rxeh; /,ires 50.0-gram bullets, with a muzzle velocity of 750 m/s, kyqe0koyx5h u/:ie;h r/f .,z 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 door of o4e -otm-t.wb0.lfw u;jw8 moa burning building in order to knock the door down. This requires a force of 100 .mt8-0lb-o towewoufjm. ;w40 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 per minute. It /l nxjb7vy/rs . dl1.4iv f5jcfalls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exer/xd rnl jfjv i7cvs.4.y5/1 blt on the ground?

  A toy rocket, of mass y-y:g smcp1b f1)u0k w0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What averagus0 gc ykb my:p-fw11)e thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer j:uv:j. ) w:lndtegz5nf0yu7 space. They push each other apart. What is their separation after the lighdulu jy7: n vzn0:jgt:).wfe5ter astronaut has moved 12 m?

  A 3.0-kg object moves to the fx * u f3i79bzdc8t3t dz3y5etright with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg d9 e ztu*73xci 35 ftt8dfyb3zobject 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 +x direction jydz w,n4er:7q,u bz0makes a head-on elastic collisyrez, :74w 0,d qjbznuion with a 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 y,x(pm.aqmc, k v7,yc 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 veloc ,cy,cxm a.(v, kmy7pqity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-*eefbrg pd0xe8 a,( f6particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have after the cod*,8epff baee (r6xg 0llision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s cc9u6bejcn)**ulcc . lt6+zd. kvba 2rollides head-on with a stationary ball of mass 100 g. The collj2bz69cbrlul.d *c tav)e c.cn6+ *uk ision is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with fmt, l3yv.lm0s9mnm2a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collisiltf92svmy,lm 30 .mmn on 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-8wb *,pz/edxg e 7cr,mon with a 3.0 kg mass at rest. If the collision is perfectly inelmrcwe*z/d, ,7 bepgx8astic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a spe-swf*4d bllzb3e; iw:g 6+x w(svnk(led of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2sg :;xv3wf bni w(6l*s(k-ez blw+ 4dl.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, wk0/r8zn8 vzx6gyz (lwm5 (vsuho's mass is 2m. The bumpers lock 8sx/(gzn8z(vy6v zrkum5 wl 0 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 direction v)t+:kbh* 6 ce9babzlburies itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves vertically upwar6bth a:vczlb*e )k+9bd.
(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 wit a+z:nt p ,/+bi((ei.u4y dmul ,ogpoth a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after tla/+(o b(:4 updo + m,tpu,iye tn.zighe collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveli mu przbx9jp,(d0+kx. ng at 90.0 km/h east collides with a 3000-kg car traveling at 69b dxjxmrpz.,u0+(kp 0.0 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 surfac c-.f.0a7kkcz-ht jaae. 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 thei aa-kjf.0 kz h.cat-c7r combined momentum after the collision?

  A small bomb, of mass 10 kg, is mov9eo )hcup zh-h97 1( eb)ytxxving 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 moving east with a speedt-yh 9( cvh )z1u)ex7eop9hxb 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 origin, and a 10.0-kg mass sits at x = + 21.0 m. m-foz+k-6tzb+p;/cfy 7td lvkw:v 2zWhere is the center;zp k-w+t6 km:df2y - zo7zf lvtbvc+/ of mass on the x-axis?

  The center of mass of a two-particle system is at the origin.m3 dyc(+/dug11j p tx ,vqvi9i One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location cu,mitidp g9jy3 (1 v+v1dqx/of the second mass of 3.0 kg?

  Three masses are positioned as follows: 0m;4v s-kcksg0 ,t. anuw7isq 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine th.ts0k c,w-;qsm7 uk0vn 4g aise coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 3o1ugn(gjb2ygj8z i6r s(l +skg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 juo(ng s+1r l 63ybjigsz82g(m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positionej cntyuu98r qw/vwugzp;:/)9d 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 three masses being located at the origin, (0j 9;)gr:y9c/8vn q/u ut upwzw, 0)?

  Use Table 7-1 to calcush.hd*4k5 oazlate the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the per*sh.k ahodz4 5son is 1.60 m tall.