What is the SI unit of momen:qvg2mn2 1z oz b p(mynjv6*eqy-/ 5ldtum?

  When a cannon fires a cannonball, the cannon will recoil backward becc 2sl *xeu-f1fause the

  A freight car moves along a frictionless le 10x o.pf actt.;v guve2oel3-vel railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens toa-2l;1 .e.cpo0e o uf3gvtvtx the velocity of the car?

  A child falls sideways off a sled while sledding on1,;b6xt1+ eo ap fmfpy frictionless ice. What happens to the velocity ampfx6 po1y ,tb1f +e;of the sled?

  A rubber ball and a lump of putty hav xf( u;(sqwm a,7kcxt4e equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with wh(qs4(a cwu7x f;tkx, mich it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum putd)y7o k-eg)nw;v q7 . How would you represent its kinetic energy in dvn 7;g 7oq-)k we)utyterms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it a9q gl;ifj +/ :x1bb3lue+9 j/do pnqgin the previous pig p 1/x l9/j+;ei :ob3uj9baqfdg qnl+tch, the magnitude of its momentum is

State Newton's second law u*w.-e:9 c s svfa4 j1cbur/uif x0hj0in terms of momentum.

State the law of conservat7p(-qdfzkxu 2f*cb t*ion of momentum.

  The area under the curve on a Force versus tim.5bco;a p 0tii r;,uwbe (F vs. t) graph represents

  Which of the following is an accud(lu9kq(p o v ldi7nb3 *gfo.im:3ao+rate statement?

  A small car meshes with a large truck i9/og 0w:i xnarn a head-on collision. Which of the following statements concerning the magnitude of the averageig:w0or 9x/ na collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped igyf+c *q1iafdf 7/6hfrom the same heighd1i iq* hg+f 6/7ffcyat, 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 floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationard3h s)kni,g 1wy 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 greater magnitude impulse during the)k 1dnw,gh3 is collision?

  Two objects collide and bounce off each other. Line;8ol+ :qs ib ljc3okc+ar momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It ro 9d9pg; byj(s:3xpx collides head-on with a 6.0-kg object moving to the left at 2.0 msp:xgb3j r 99opdx y;(/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halq lp,2;7jgs cq-(mth(fm m.,gecud; afback runnt emfqd.q( ;2;a ,,c(chu gjps- mml7ging
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is consx1jw s0do km08s409mria7 ubperved, then which of the following statementsw40x90md som1bpi0 rjk87uas is true about kinetic energy?

  When is kinetic energyw27nw1 anq*tkk+wk8tdggd 6 ( conserved?

  In a game of pool, the white cuer3 yxoj/71g rvzdm q12kd0r5c ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue b1oy zcvk 3dm70 15gj/rrdrx2qall had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides i om )y92/w.ar 1ntgmqhc49bgwith a heavy exercise ball at rest, the beach ball's speed after mh4wm9 onai.b 2)gt1ycr/9gqthe collision will be, approximately,

  A golf ball traveling 3.0 m/s to wzn 6s4vh y)a0plh)) fthe 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 of the golf ball immediaty lz))406 )vwh snhafpely after the collision is

  A rubber ball with a speejaw9cm90;hl7 ysmy/ od of 5.0 m/s collides head-on elastically with an identical ball at rest. What is the spm ;9lhy9 yoc7a0wjsm /eed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides heed0 /isuu rr am/,tb-/oqdoi1 um37:xad-on with a very light object at rest. Td3budum- q7mar, 1x0oiit/r/eu o /s:he 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 collides head-on with a very heacp/0p3d o*3 tqda: grkvy object at resq3 *0gc p:/atd3drpokt, in a frictionless 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 4iz 084h gtr 3xjqtlr3head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What t4384x h0j ztgrqirl3is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on j6v78j*xj k)ckqw7hup b 4 8 4bwtklehe0m.3zwith a very light object m4jp)bezvcx87jh6jw *h4mkue7w0 q 3bt 8l k .koving 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 collision?

  In an inelastic collision, if the momentum is conserved, then which of the folb3wxn :c6z3jv:pd m2clowingcc xjmvwn 36dpbz23:: statements is true about kinetic energy?

  Two objects collide av5a wd6uoe3; ) tkl.uel3lqg *nd stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectjvmu 2y n 0rxn6t7v(u8w. wcxrd)jo ).ly inelastic collision wjwmn8d2 )uvr x.x j0(. uo ywnv7c6)rtith 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. Whis/l5s)vl0yrw5x8 aruk k. az/ ch object experiences the larger magnitude of05k.s zllv sk a x/ry5w)/u8ra momentum change?

  In a game of pool, the white cue ball hits the #9 ba /c 76h1:g6lezphw;w vk6ph2pqs .oms ll 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 thegqsst77iy r29 following statements is falsrysgq tsi2797 e?

  Which of the following is a false statemenl8e i;7z3 jfoez l/nonjj( p:,t?

  Tightrope walkers walk with a long flexible r8 otps7 eczre8eotq x+m2(*p:s 8pbq4od in order to

  A plane, flying horizontally, releases a-r 2n3zdg+fe bwxm k9 d0:rgfi,zho x n6;6(fx bomb, which explodes before hitting the ground. Ned6:-o dhze3f(;ffn zm xi+w gk6 ,2xg b9nxr0rglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free r7wp kl 1 1u;clwre7c/ir9. wgy7o qmh:oad. The collision was completely inelastic anlu1 mck r7wo r /yew.;17piwch:ql9g7d 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 for asg i-q0-w)f r7 jg2/ni lro-icv9:mia system of particles.

  What is the momentum of a 2000-v*po2)fiji , ykg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude of its msbbg7e+ tkf 6**86dlb ok 0fwlomentum?db kl8* ftfkbegw6 0lob+ 6s7*

  A ball of mass 0.10 kg is dropped from+d2bklt5j (jpw 5wv/s a height of 12 m. Its momentum when it strikes the groundl5swvw+2 (pk dbtj5/j is

  Two identical 1500-kg cars are movin fou arp4m)9n,,sgq 9khv)ex.g perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of the p,ru ,sxm49oq9)kgfnh.)v aesystem?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strike:unmlh4 1u k;f 2wwmo9s a wall and rebounds at 24 m/s. What i1;k4f29mwn lwou:u hms the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially movingjljoj+c,:8kg2q 2g dc at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed ,j22k djclg8:oqj g+ cof 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frodzh y1/ ajc b,d eew+/v. jgg,hug* ,(pal5y3yzen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speejggwl*/gy.bz a,ujhayvdh( +,c 3ye ,e/ 5d p1d of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsul (k wua;snc/js m6:h,ve and is stationary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg spac k:ss/hwmvc;u6(naj,e 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 momeh3a; x+xsab l-ntum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces straight back withh3ax as-b;+xl 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.l409hmbzvc 4asj +y b;0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you bothz04c9l 4b asyh v;jb+m move off together?

  A car of mass 1000 kg moves to the right along a level, straight1o k; 2b1fecn+7;1t 4i vl1uvc +irni of*quzb road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the tot71oi fin ck;tefuiz+ bo4;uv+1lnbcr*12v q1 al momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the j 3m5e/*9dql lw4xsfhrear of a stopped car that has a mass of3 m4xweh5l/ dqj9l*s f 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15muz*1xp2,5pq yi8pgr,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, inzqmpu r2,i*5p x8yg1 pitially 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 friction on a zmz;n sa)2 o9ehorizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, nzoesaz 2m;9)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 thes8c80*4h emnl,z 1lhv )/w nbgfiv y/r rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to the shorm4 hl/8bsv,cn8 / r0 ew*nfh1vlygi) ze?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly 6n4fty wgh8slv+m 3m 9increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object?943mgln6tyv+w8fmh s

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. 9f e hq0ri k/,u*z ttmk.e8vr(What is the object's change of m/z0fe vq e.r8 ith,*kru9t( kvelocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a br ivu z7,c -md+2uhei4hick wall and comes7i4mci+ e, duzhuh2v - to rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball iscfkoh 5pps5pp) k84 deqn05 -h pitched to you 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 the magnitude of the average force the bat5cppe 4oskh dq hf)p50-8p5nk exerted?

  A 0.10-kg ball is dropped onto a table top. 9+6t w lbhw,brThe speeds 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 blb9hw+br,6wt etween 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 muzzx8oge,p4 (ndk le velocity of 750 m/s, at the rate of 300 rounds per minute. Whn8o,4p(kx d geat is the average force exerted on the machine gun mount?

  A fire hose is turned on the arh7 89bpkw5 idoor 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 second, what is the minimum velocity of the stream needed, assuming the wate bk58 hwia7rp9r doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate+)cqncv.s; bo 0rh4 dc of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash u ocdv) b4srqcn0h c.+;p, 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, j4rl (qlgt zz y kxbtl4uz8u:tf1 qx,;*w+s(:when fired straight up. Wh l8zt1u,(b 4 r(t ;j:xltyqz4wxls:+*gfuqk zat average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially:x;ucc6me+ etvdm j-vv 4 n2n( at rest in outer space. T;2vtx (e:dmvcune 6n mjcv-+ 4hey 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 collides in a pv.jed /o-agv48np x-d*uegb1erfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after thbexpu* 4odg1a- gj. /dv8e- nve collision?

  A 0.10-kg object with a velocity of 0. ufxu(1uu 7es:x2p f)w20 m/s in the +x direction makes a head-on elastic collision with a e x (w1 ffs27px:uu)uu0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving kl.31dbuj n, wyrsd5.0a g-sz at 300 m/s is fired into a 1.00-kg block at rest. The bullet emerges (the bullet does not get embes5swu zd,b.l3.0 kjyd gra-1 ndded 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 8 qxf1lgqrg+ 5rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collisif8 grx q+glq15on 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 collit m fq)j0i/cl9bbd9*jebi8 23hrnp 4 cdes head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately afterj29 hmb* 0li n3b)jc 8t idpf/cqerb94 the collision?

A ball of mass 400 g moving kw+17y53y1c yrg 6e(kqjkakv toward the east with a speed of 3.70 m/s collides head-on with a 200 g keyrv61gc +k53yky( a 7jkq1wball 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 sp;,d-,mkpb9 it3lm2o uhe w j3d9zir5ceed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the co ub 9;9jit 3,d- zirp2om5e,3w mhkcldllision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s (kq0ikdqd:as8 hfwd o,y2k )8collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during th0)kk yso:d(qih,qwda8 dk28 fis collision?

  A car of mass m, travelinrl zgm5.c j,,ng 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 fraction of the initr. l,j n,zmgc5ial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction burth/j5c7 4, oq a/xj/rff23x,qkysgraies itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/bloaxsyqgxt42,3f/rq5c r,f /j/ah 7k jo ck 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-/iwjsvc5 o 0/c2 yspd8pha6 z4kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars a yv5wdh 680acp/p2s/o s4jicz fter collision?

  A 1500-kg car traveling at 90.0 km/h eamdp. f0i mr)i8st collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togethe)mr 0pid8im. fr 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. Object A moym tl1zu7fn:9h7 :rcjves 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 magn1: ju97fm7h: r nlzyctitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg,3gyh xh,7eoa0hc;2x h is 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 moving east with a speed of 10 m/s;oha0; xh h,2e gxhy7c3 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 at45eo)nd-m w oc the origin, and a 10.0-kg mass sits at x = + 21.0 m. Where is the center of mass on d5 w)once 4o-mthe x-axis?

  The center of mass of a two-particle system is at the orqix(u;.j : yv/t 94okt 4qdf)l5vigdhigin. One particle is located at (3.0 m, 0) and has a mavl4xjh :9;(vkt5.d qy )tqfuig/oid4ss of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as fol 7hmcaz ntfmo v1,9(fs5p8wj/lows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determi 9/ftcp7m,58a(hf so jzv mn1wne the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 9il -a , l-3xpglsod:b3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), reslxl-bs9d ,ga il-:p3opectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned a *v4d1+ *xe7ns mzxx; ae4qiobt (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 threx;4 mix va+e4 *x1 o7zsdnb*eqe masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate t e+txwiht mh*0 v/0/,2hzfh jdhe position of the CM of a whole leg including the foot when the leg is stretched straighth/ ,2wxv0+tde/ i*ftm0hhjz h out. Assume the person is 1.60 m tall.