What is the SI unit of68qj lq o:id8li)gou4 momentum?

  When a cannon fires a cannonball, the cannon will recoil backward becausen0v85jc4c hz 1zvzo jw3 h9y.x the

  A freight car moves along a frictionless level raiqlqwfyb l8 wmovqnyp13 ,27.,ytv(9llroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car.n lqy9o 7 8ylp,3blq,(2m tvqy1fwwv. What happens to the velocity of the car?

  A child falls sideways off a vl9-mmnwqp/81 4qhiu9 k8 r vx ofl5z.qus;4esled while sledding on frictionless ice. What happens to t/zhxiu ns4weoq9-8m9 p vvf lk5 mu;. qrql148he velocity of the sled?

  A rubber ball and a lump of putty have equal mass. Tjerpkmztmips;59 4 ,/ etq.2shey 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. Whm t;stpzj e.kr92ie/p4, qsm5 ich objects experiences the greater momentum change?

  A sailboat of mass m is 0lxjy,z1ilo 2ohcr24 moving with a momentum p. How would you represent its kinetic energy in terms of these two quanxr 0lh,z o2y4o1c2lij tities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previo ud2w k* 9xgc09q8cxyaus pitch, tq890cxkc9 ud2 xayg *whe magnitude of its momentum is

State Newton's second law in terms of momeg /ew 14arx+ y(kmu(uwntum.

State the law of conservation of momentu1j8 0cbg,v9w3e4 s5rd vmnvlrm.

  The area under the curve on a Force versus 6y-67e chai rjvwm5su .y wxz t1/fbvq.tz 568time (F vs. t) graph represents

  Which of the followingd1eir7j t:uh, 6zex ;p is an accurate statement?

  A small car meshes with a large t2.6zowo/as l j1uc u;xruck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is correx ow2.1ol /cuuzas6;j ct?

  Two equal mass balls (one red and the other blue) are dropped from60ms.)bt hqwtantj n-lv8-d- 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 during it6wnadvn8 t0) t-mslhb- -jq.ts collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a stationary bownlm g gq,wftx17i1 h9)ling 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 collisionn1lx9qf 1wit,g )7gh m?

  Two objects collide and bounce off each othev5 d.zlk9-oyjr. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. Ik72uz ln.t2* e w(a -ornis+d6x.o n5l/ynl zot collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correc-yz.sxlo25*n oeult (7nn. zlko+ in62wadr /t?

  A 100-kg football linebacker moving at 2.0 m/s tackles headab 7lzx.xid 97-on an 80-kg halfback running7aix lx d97z.b
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is dp zx2 (0 u848h7gs2dvisqpmp conserved, then which of the following stateup8xp dz2sq8i4h(dmpv07 g 2s ments is true about kinetic energy?

  When is kinetic energ11d (4eqx9qbhn-xls qg, qe8j y conserved?

  In a game of pool, the white q 6)2,yiebdvpaq p u.)cue ball hits the #5 ball and stops, while the #5 ball moves away with th,a q)2)y dbu6pv qi.pee same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of fafm+9 uz0 gvt85 zb2/c-zgtgg// p cm6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximately/putmm 59a8 z0 2cz gcgb+g-//ftgfvz,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision witv)clk/8g61klhc;8xt/ mp2d x1jm d auh a stationary bowling ball in a friction-free environment. If the collision isxl2um8avhk6gd81 1c/ctk) j;d x/ml p almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collide gkigvue,5iu).9w bnn1* g8ln s head-on elastically with an identical ball at rest. Wb.)i*w5igv,u1k9 8 gnng neu lhat is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very acy+bnpzx8i7k+p jj5dy bu, ;0 (f/ gylight object at rest. The collision is elastic, and xz(yy+,bp;5fjjk/ c+7 i 8bny0gadpu 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 hlk2idd a;j(aqy(5 ; qjead-on with a very heavy object at rest, in a fjddaq y ajql;;i2(5 k(rictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity oiln boeb ,h(5iaqs(z/ *t4nc 2 nc.an-f +3.0 m/s collides 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 after o2 nc(5nan, zaq(ti-slc h*4ebi/ .nbthe collision?

  A very heavy object moving with velocity v collides head-on with a 5++ lspwx .jzlvery light object movin++zw lp5s. jxlg 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 ta84 hfm4z.f h0zsx) bbg5gn o2he following statements is true about kinetic ebog)sf0nxf.hhbz gz 54a 2 48mnergy?

  Two objects collide and stick togez) v0aoda,7x)3pq9ox .x 1 oxglfkxy -ther. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a per3m2 kv9xr9p adfectly inelastic covr939m pakd x2llision 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 withvq +)2z; 3mo(irvt fbha6tt.h a large object and sticks. Which object experiences the larger magnitude of momentum changv2.i ; vtromhfa)q 36th+ bt(ze?

  In a game of pool, the white cue ball hits the #9 ball f g9x0ijf+3g m )psu6pand 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 statementnj : vih 1(8:polfi5rls is fals:f 15:hiv(jin8plo lre?

  Which of the following is a false statemen:(nseg3 sm5fp f 3dvk/t?

  Tightrope walkers walk with a yj6 ca(z4ga1g *kl kg8;rc y,ulong flexible rod in order to

  A plane, flying horizontally, releasesk3z+sdmdl/ c7 a bomb, which explodes before hitting the ground. Neglectinc 7dz+s3 mdl/kg air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head- z-evt9kz.tnc ng5(q(on on a level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the coll z((5kc9v nz q-egt.ntision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of pa9o wflt/rx*)rrticles.

  What is the momentum of a 2000-kg t;k,k8)extno aruck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude gbtj-u4lyr-g a 8y2i/ehhp:0 of its momentum/y2-bjryatp ue- gil4g 0:hh8?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it s1*tc xn s,u83a5z:f i kqtw-ok5h zb0strikes the grobkzwz * -tf tkn5ohcq8s:10iu5a3, xsund is

  Two identical 1500-koru uns5i;03 pg cars are moving perpendicular to each other. One moves with a speed of 25 m/s due north and the other mov 0i s;u3r5nopues at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kgcp73l )td9z/t wf vtp2, traveling horizontally at 30 m/s, strikes a wall and rebo92zt)p /dtwpftc3vl7unds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially m,g 5wfix/s ujz.rw++j2ndd ;b oving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the chang+,x w +2g;jr/dbu j.5zwinsf de in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) qt:cyj fub /lu+73)b v9pf4kuis placed on a frozen pond. The machine firltuu9y)vf jq / 37k:4pbu+fbc es 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 friction.)

  A 70-kg astronaut isgiz5hy7+/qyn/i+t ) xdcx k;zei ;p (f space-walking outside the space capsule and is stationary when the tether line breaks. +g(+yk/zp);7th e/x ;icq5 diyifzxnAs 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 what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at rembcjq(w- qiu sd5(n3-st. 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 changeiub jws(qd (3 q-mn-5c?

  You (50-kg mass) skaten 7ux4pt e:*rt on ice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while h7r*nt u:pxet 4olding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straighfoa,c8- yl 2ppt 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 tofc2,y pa8pl -he collision?

  A 1000-kg car traveling at 25 m/s runs into the rear ofol:drqgn c h0:1 kk6.y a stopped car that has a mass of 1500 kg and they stick tog 10ryhokq l:n:.c6kdgether. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a b18wy/)*ffrfr 0uakd 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 br1 uy)*8ffak 0frw/dtwo cars after coupling?

  A railroad car, of mass 200 kg, rolls qtwe25zt.p iq 7go9s zl5dp 86with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of z.5gts pq 7d zwe8952t6qp lio4.0 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 oflj1k mitg+a27uz e2.x 0.80 m/s (with respect to the log). With what speed does the log move, with resa j7e12 zl.m+iu kxg2tpect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Th03kysywgeg: r s 4,vx4az03ske force suddenly increases to 15 N and acts for one more second. What impulse4s0gysvw34 k0y xk:rze s ,g3a was imparted by these forces to the object?

  A constant 9.0-N net force acts for *osnst,kg29tz yn.x0 2.0 s on a 6.0-kg object. What is the object's change of velocity?yzk ntsxs9,g.20otn*

  A 2000-kg car, travel,(78l*ybka ub1svdbligyw 7 4ing to the right at 30 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 wal*b b(l, k 1udyys7gw4lv7b ai8l?

  A 2.0-kg softball is pitched to you at 20 m/s. You w81).o ,hso f/f+mm( tnskp cohit the ball back along the same path, and at the same speed. If the bat was in contact with the().c+ooop,k8hmmffs1ns/t w 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 table top. The speeds o3a* whe5,dlp0 +fyjcqf 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 b*wp,y3a0l c+d hf5qjeetween 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 muzs 2l ::hmviqav/e u l),:6, eijks+uts o(sj-czle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machintvu )6+-,/ ill:sems2vujoc kq(,:siajsh: ee gun mount?

  A fire hose is turned on the door of a burning building l*)ck.u :dwz,u/.n yoi4uhfxin 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, assu)lh4u.k,.zoxf u/ di*un w:ycming the water doesn't bounce back?

  Water runs out of a hori 8,x 1/5kck1:wjhhsmnpwj:x wzontal drainpipe at the rate of 120 kg per minute. It falls 3.20h1 /xw,xp jsk hnjmk1c:w8w:5 m to the 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 a velocity o wfih (2t3jky+h+3wxq gx s;6sf 40 m/s after 3.0 s, when fired s32qhhx+6wx s+k ytswgij3( ;ftraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in rz9t /h(wsxn6outer space. They push each other apart. What is their separation after the lighter6/w9 n(xrtsh z astronaut has moved 12 m?

  A 3.0-kg object moves to thw g( (u(kpwgk/(j wf0ce 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 afterkgwkj(cg /u(p( (w0w f the collision?

  A 0.10-kg object with a velocity of 0. uq-fhvm;h11s 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 aft;h 1vq us-hmf1er collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The bu,q9* ky46ycb b9 ezskyllet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block rights49cyqzbk,9 by6k *ey after the collision?

  A proton, of mass m, at rest, is struck head-on by ab*2ul-da kpb 9n alpha-particle (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- l 2p9u*bakbllision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary nopq 1dfcj9)+d)dy2k ball of mass 100 g. The collis) 2+)df9cp1ddnqoj y kion is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a sperei)z slh6z(lw z:1/j )gk48vrsf 6n yed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastrz8i(6r l lwvz1)ys6hg:4ks/)efj z nic.
(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 collidegrlcte7tj7 81*3s yx gs head-on with a 3.0 kg mass at rest. If the collite1g38j7c ytxsg7rl *sion is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of ubyvy;zgy2c1akw w w8y3m,;o6x-) yx ab:yo ;4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is l,aa3 w;;zbyyy28b 6 xox :);gyy1wcowvy ku- most during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked swh+s.fejn .p6mdm o3hdc x*1:tation wagon, who's mass is 2 wnf.x:hc3.hjmm+so*6 dd1 pem. 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 v fs f 7hzjm5(ryufol7 d(-bd72ertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block com-f(d7bl25fsmhof(7r uzy d7j bination 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 wp81wm+ 337l vw y(tmipt)ulr3000-kg car traveling at 60.0 km/h soulrtp +wl 7up(w vw)i1m8t y3m3th. The two cars stick together 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 collides with ak x6.ivh1 0zua 3000-kg car traveling at 60.0 km/h south. The two cars sticz60u1aih .x vkk 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 sb,d4np6qkb -v/i9vn n urface. Object A moves east with a momentum of 24 kgm/s. Object B 6 /v,knndivp9bn b-4qmoves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a4+d 2eax*gtamjb8rt9g +8p hg 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 velocd8 jremt p hbg24+ta*8g+ 9xagity 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 mtbndbr35;f g- . Where is the center otb-bn5d3gf; r f mass on the x-axis?

  The center of mass of a two-particle systewlus+:9ry jo 0m is at the origin. One particle is located at (30j+wru:o s 9ly.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 nzu5kacj;4 y t+ek/y oew:d4 ;s;lve* kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordiw4;y j; :4akco vydke/5n;z+u e le*tsnates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, andv1nwyn3 5p5dk0lpo8 g 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 5 w ogy3nv81dnkl50p pof the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is positioned at (12, rnre3 m:31bxd 0). What are the coore3r 1d b:3xnmrdinates 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, (0, 0)?

  Use Table 7-1 to calculate the position o ihu68 mfijt3/f the CM of a whole leg including the foot when the leg is stretched straigh6juif 38hi/t mt out. Assume the person is 1.60 m tall.