What is the SI unit of momenf4 xry-d:qwwe )zbkf 6vis 08dfcy/(2tum?

  When a cannon fires a cannonball, the cannon will recoil ba r0q6-lm/5 q6 hsk16auyb ehn4 ye qen,m;8fjjckward because the

  A freight car moves q5k nqu5g0z w+along a frictionless level railroad track at constant speed. The car is open on top. A large load o0 u w5knq+5zgqf coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled whilefpsjr(qzw+vp, odsyg +u ) *2/ sledding on frictionless ice. What happens to the,+v(fpp2d ) grqs*jzyo/u w+s velocity of the sled?

  A rubber ball and a lump of putty have equal mass. Theyfg* 3emxv 6re5*y oqh3:g jhx: are thrown with equal speexh mevg** 5: je qg3fyx3oh6r:d 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 momentum change?

  A sailboat of mass m is moving with a momentum p. How would you r 9ecnm /3t0bgjc+)k mqtja/v- epresent its kinetic energy in terms of 9/q+cje3k/tnajtm v0- mc) bgthese two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the pruszc3: ,0 qg)fz.t9l sll 9flrevious pi gl u9,9zzq.sftl:ll0 f3)s rctch, the magnitude of its momentum is

State Newton's second lavwagy; es7l )5w in terms of momentum.

State the law of con*189ut q+i hmnd fe0+n xbisp;kip 0r*servation of momentum.

  The area under the curve on a Force versus time (F vs. t) m/i;)ijn6lw hi(kg)h 7d + baqgraph represents

  Which of the following is an accurate / 3 m( zm(wari.minpw/statement?

  A small car meshes with a c wa)7(ezoq (dlarge truck in a head-on collision. Which of the following statements concernao7()wedcq (zing the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue-3i xemovi1*k wpa3/-yc: pzt) 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 imp 3 y 1:-p xzmak-i3t/wi*vcepoulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed ofmmc.xv 2 .taa1 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 to the east. Which object experiences the greater magnitude imp a2maxm1.cvt.ulse during the collision?

  Two objects collide 3:mc5):9 yl6xn g1hkqvx es fyand bounce off each other. Linear momentum

  A 3.0-kg object moves,ob8 x+0uehe u,-be. 9zswobp to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s.sw e .-,ob+ xo9pzheu,8ubb e0 Which statement is correct?

  A 100-kg football linebacker 9f/uju*knu4 mz41n5 dpb6 e trmoving at 2.0 m/s tackles head-on an 80-kg halfback runninu mukbfjz9 nnu*/4 6pr51e4 tdg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, then which of the followi;jze;u+a0:kwyue ycf2r( s 1mng statements is true about2r0wk1 :;+ma(yefj yzcus eu; kinetic energy?

  When is kinetic energy 1+;bfqaof v h1lsh2, t2l6nlzconserved?

  In a game of pool, the wlab6 f 2xiji8u)iu(6i b1 cbu5mh)0nyhite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity asui8b1ilj iy52 0)(6f u)ib a6bcnxmhu the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0y j 7gncfz;3b* m/s collides with a heavy exercise ball at rest, the beach ball's speed after the co*z7cnybgj; 3fllision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collideszk:y8jfr ebd9b 1b o+yq s89bl7 cqp15a:mvq0 in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the s1sl+e yq j5zfb1 b8:bvc dqkbm97o0y 8r:q9papeed of the golf ball immediately after the collision is

  A rubber ball with a speed o/3j7m55j ad. her hniqf 5.0 m/s collides head-on elastically with an identical ball at ren3jeih57harm 5q/ .djst. What 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 light 7uybqnp.,x8sr k70m qvy-eu: object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What i nx- qm70 v,qbu:ye.s8pr7uyks the speed of the light object after the collision?

  A very light object moving with speq*l t0u z4cr3ymo(b8f ed v collides head-on with a very heavy object at rest, in a frictionless environment. Themlt8(rfu3c 0oq*by z4 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 collidoa(qi6 la;:d+ czkzi 3es 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 the collis3iza( k+qd6;i c:laozion?

  A very heavy object moving with velocity v collides head-on with a ver1yrt hhx*h, q2y light object moving with velocity -v. The collision is e hyr,2 h1qh*xtlastic, 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, theq481 :4 cnvtol;:w6zk89h q gonlkmpan which of the following statem v8 4kkn; gaw qqntz:6mlo 1:8oph9lc4ents is true about kinetic energy?

  Two objects collide a*s :x9vmqk;x ww (gnm6b yd0h)nd stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in + mm a*ip; qi6bk+1zuxziw1p6* hyf.6 fh,kkla perfectly inelastic collision qy p*km1 6.a6+,bp huzl6kff +ik;i*i1 wxmz hwith 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 objec8 eehg 3 8+neu*vcw :y+ham*lqt experiences twe* 3mc+n*h qeulhy v8+a 8e:ghe larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball anz*s/fk(inpu1 e0 pikjge9-l+ 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 and m. Which of the following stp des m 17nk,3pqqca:3atements is false? p knqc1 3qsp,m:37aed

  Which of the following is a false stat 2)db1,wkdv5/ etazgwement?

  Tightrope walkers walk with a long37t bsc4jvjt- n-kf z3 lsl)6s flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explode 5s0*h c3efjgfs before hitting the ground. Neglecting air resistance, the center of mass of the bhff 0j5ge*3sc omb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was compled() dmtrd;qali5 s eu8) 6g3tately inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this syadtmut5;ali g d6r)8e)ds q(3stem's center of mass?

State Newton's second law for a system of particltsvh8fmx, htc:u (4h7es.

  What is the momentum of a 2000-kg truck tr c,,5dgv; xp t03(c es(0dygjeguizo2aveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is jb-7 r*-pnqwsa a a8131sgenjthe magnitude of its momentumear 7b8jn--1s sjpaq*anw1 3 g?

  A ball of mass 0.10 kg is droppes,a+b 2a+ lh9yhy5 yvid from a height of 12 m. Its momentum when it striki5,h+9 bayha ysv y+l2es the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One m) ((ouov..krqv(73wsfq9r, lkr y wrmoves with a speed of 25 m/s due north and(w kk fr qm)orlw .,(rqu7ovr s.yv93( the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, t/ ml0v7snzkw, raveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the c nmz7,v/kl0swhange in the momentum of the ball?

  A 0.060-kg tennis ball, initially mzplwm 3v,5/c1* ycogm oving at a speed of 12 m/s, is struck by a racket causing it tovw 3c15ml m*zo,pcyg/ rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed 2i t. j jmb ypu)oon hpwq,1hb2q3rul;/h3,v/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 pju; 2lw1q)33t /ih/.phbpuj rqn2hy,v ,bo moitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationarbi53z1mgyqnv raj s;mv*96 8sm io;w/y 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.*a;vb mv9i;/iy6ms5 w1 qnzm 8grs3oj At what speed does the astronaut move toward the capsule?

  A small object with momen76 b) z52popx4d qhzvjtum 5.0 kgm/s approaches head-on a large object at rest. The small object bounces stra) 65 v pdqh42zxpz7jboight 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 q98ge sc5 m8esice at 4.0 m/s to greet your friend (40-kg mass), who is standing still, with open arms. As you coll598 qsceesg 8mide, 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, straig fltd wj))o)9j1drdf0ht road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle fo)rdddjl0 9t )fj1) wof mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into th y,rij/hposv5q;bfda .+(f8z09l g cse rear of a stopped car that has a mass of 1500 kg and theyql b+;sir j8fd(z ./9 ,oyhf0vscap 5g stick together. What is the speed of the cars after the collision?

  A railroad freight car /it.s-qx y(od, mass 15,000 kg, is allowed to coast along a level track at a speed of 2.0 m/s. It colld-y qit/s.x o(ides 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 negliguo: 6ppksyo1,ible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight d,1k:p pyoso6u own 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 0.80 m/s (with respect to tw*w2uh u+2wl9d: s cuu./njly he log). With what speed does the ly2 ljuwsuuu .*c+ l hww:/d9n2og move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddej cpe57jn ,;r;6cwicc dmn:)pnly increases to 15 N and acts for one more second. Wh 6jcw;im)ecr;pcn :jc5nd,p7at impulse 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. What is the objek;hr/9s8o r qv.6pgmzct's change of velo/6;.v8 qzgrpmosh9k r city?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall and 378nd e0re5.n zbfzgdcomes to rest in 0.20 s. What is the average force the car exerts e07fz3greb d nzd5n8.on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back along th 4.xbe0p0(1 hlnitta4 g8rilfe 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 average4 0il gtia re0.n(tb4plhx f81 force the bat exerted?

  A 0.10-kg ball is dropped onto aytj,p* gpoc u4ws4h68 table top. The 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 between the ball anwh ygt46 *jp4ocs ,up8d 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-;p,d8 +v mzcmfgram bullets, with a muzzle velocity of 750 p; cv fd,m8+zmm/s, 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 j q:ei 4e +zirjhtz1a/3ini4t.zv q58 the door 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 sec8v.qzt/3je zna q ihr:it45e4z i i1+jond, 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 3y2vah:n;gw3rb3qj:mgovd6falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the grounh; : vgq333wyv2om6gradbn j: d?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fkwuow+c; nm(za 9f-j;ired straight up. What average thrust force nw+of;(- 9kawcmj ;zudoes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rerp0n-ke68xv)v* pgo;q nmuh7 st in outer space. They push each other apart. What is their separation after the lighter ashv87 p 0v6rxm* onqg ;ep)kun-tronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed ofhl t kkb;): zv,prs- u2kji4 k:ai(;la 2.0 m/s. It collides in a perfectly eki v-kzrtkbhj2l (4;;, ul:p: s) aikalastic 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 velocity of 0.20 m/s in the +x direct o )fp/13s doeia3ekc.q+1tiv ion 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 i k3p/i.3o)f1ceoave+1ts d q object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg blofvz5 qnskpzmur x 73d6:d1k) -ck at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its original kz5-u7 qmr)f31nzvkd:s x dp6speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which c9nt*rnh i o-v0d2x kw u0;y*hdonsists 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 collisnrotiy ud* v0-*9h;kw h2n0xdion? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball of mass 2utziesf4p8jb :e /l-m/c f h2100 g. The collision is elastic. What is the speed of each ball immediately after the collision? p-u:hlbt84e2zsfim2j fc /e/

A ball of mass 400 g moving toward the east with a speed of 3.70 8jg 4q gl4:bqmt h, ;s0jjjun/m/s collides head-on jujg;q,n hq /g48mbltj j:s04with a 200 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. It ar7mbhf8 w.o 1collides head-on with a 3.0 kg mass at rest. If the collisi7 oawh1fb 8r.mon 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 4.0 m/s comy8q)7ug rttt.r xhjl*n6 ;;hf / g:ikllides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is uh/lfgi krn )h;78tq;*j6gymt:t .rx lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station :u,m4 cdqall. wagon, who's mass is 2m. The bumpers locklca4m:, q.ud l 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 buries itself in ow .(n* gq nwie0ly, no1.fta0a 2.4-kg block of wood a rest directly above nwfoe0.oiaw 1 l, (n .*gy0ntqit. 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 atx *r1 4uff/6lnzvc tz+ 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (Seerxvf 64c nuzl+ t/f1z* 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 a 300z/cd b gw+d*7 gd).ewx0-kg car traveling at 60.0 km/h south. The two cars stick together aftebdc g 7w.d+ )g*zd/xwer 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. 1;ygx 88dnxjbq9; e;zrsv n9j 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 afv1r 8 ;znn 9byj9;xse ;gxjqd8ter the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a velocity of 4.9s1nd ms;: c(o1rkr ks0 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 thsr9drsk: 1 (nokm;s1c ird 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. ;g wriplc30d;Where is the center wdl 3;i;cg0 rpof mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One partio/3;j40 rbmeouxd( m tgsw6 f7q5u w0bo:b :qicle is located at (3.0 m, 0mqbowo5rwx7dj(4/ ; b6 m:fu0bu3 s:tgq eoi0) 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), 2.0 kg at (2.0, 0 vp* ysc+3tcvqjae72)), and 4.0 kg at (2.y3t va7qcsp +c2 *j)ve0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.0 0t6vtuedp9,t m, 1.0 m), and (2.0 m, -2.0 mv ,0p69t udtet), respectively. What is the location of 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 posiymdjuc(b9 92utioned 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, (0, 299jmcdu( u yb0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg includigj1sc9 tc j,f2ng the foot when the leg is stretched straight out. Assume the person is 1,9 cc2jtf jgs1.60 m tall.