What is the SI unit of moment + xrh-azv l9d)od-n0uum?

  When a cannon fires a cannonball, the cannon will recoil backwardl.il b mli9/ji. jp;+j because the

  A freight car moves along a frictionless level railroad track at constant sp tdz 3jau87qae,xw),eeed. The car is open on top. A le),wq8 7auaetj, 3xzdarge load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sledd z2(pm)vf y:2zfd-s cwing on frictionless ice. What happens fdzs(f yw2m v: 2zp-)cto the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. 0 u;iwz;4*ma slsra k1They are thrown with equal speed against a wall. The ball bounces back with nearly the same spees rk mwas;4 ;1ua0*lizd with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is m wcabcf(-/-ga oving with a momentum p. How would you represent its kinetic energy in terms of the-bgf c- w/c(aase two quantities?

  If you pitch a baseba8xyr yz2h:su0lr 8qs0kdwd; 5ll with twice the kinetic energy you gave it in the previous pitch, the z2ss8lyy;0 ud:wr rq58h 0xkd magnitude of its momentum is

State Newton's second law in terms of m tf5vfwy49;;szrw* f momentum.

State the law of conservation of momey ue l em)98g,x5gofr 6p)/bhbntum.

  The area under the curve on a For9zv7s 1/ej3 cmllnea zh.4o xxv15c3jce versus time (F vs. t) graph represents

  Which of the following ih1fo/ *j;jqyu 3 -xasos an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of thqp( vdd+p+5 6 yz,c0e5mvwmz 2kb- ryke following statements concerning the magnitude of qm kc5rkyz(v m bdp-v e,zp0 62d5+y+wthe average collision force is correct?

  Two equal mass balls (one jwz) 6 (5 lkc qpt5dr::m(ehfjred and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebo((erj5p6khqlcz) tmwj5f d::unds 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 04+pc e9wcxsy with a stationary bowling ball. The Ping-Pong ball bounces back to the west, 0 c4esp 9xywc+and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off tlm1s5r0us f: ps.,vteach other. Linear momentum

  A 3.0-kg object moves t3-ut:79vib1 d-xopfv fp)z (gp j5lteo 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. Which stateme3 9:p pxefp5 (t dvf1ul -zgobv-i7j)tnt is correct?

  A 100-kg football linebacker moving at 2.0 m/s tacklew/ k1j l k u0/zylh2i3k4 jhx(r.kg+jus head-on an 80-kg halfback runnilw u/.0/j 4j g2yhizk jkux r+3khl1k(ng
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserv9w9vpay k.3yvvk g8 ;wsfej)i)g0s3wed, then which of the following statements is true about kinetic energyw v 3p k3i09s.w as)wf;jeyyvk8g)g9v?

  When is kinetic energy conswguim )7 r, 78 wc- 5/v7/wylfusassdterved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while vy ,zvt8k *i7:g1 fhkoydy9x08 hcrw4 the #5 ball moves away with the same velocity as the cue ball had originally. The type of cod: yvzhy8hrfw 4 1x kg8yv c*,to90ki7llision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a heavy6y6 jq3q )lbed exercise bald6 eqj6)l 3yqbl at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to th,l,iq- hm; b/wa mdp,je right collides in a head-on collision with a stationary bowling ball in a friction-free environme/, lmj h,dbpmia;,q- wnt. If the collision is 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-motyn,*ey8ykm -nlnxl ;,k; collides head-on elastically with an identical ball at rest. What is the speed of the initiallk ly-*en,,;lommnxytn-; yk 8y stopped ball after the collision?

  A very heavy object moving with speed v collides head-on wyg2iv 9h0fn4 with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows dowv04i wfny9g 2hn. What is the speed of the light object after the collision?

  A very light object moving with speed v collide) do0dyoyif)8 s head-on with a very heavy object at d dofyy08)) iorest, 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 head-o9u. iigy,ik +/g fv3bkn with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the vy +if3 /.,bku9v iggkielocity of the yellow ball after the collision?

  A very heavy object moving with velocity v co ,o-7irs)qgy d,;v qdqllides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slo qqydr-s ), vq;g7,diows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentd9- 3n;( ncjhpcykk0vum is conserved, then which of the following statement nckn09p-k(dc;jyh 3vs is true about kinetic energy?

  Two objects collide an9 jyom *(1 *gmehq2ahk3lj f4ed stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides 0u4;x ryj hx2tin a perfectly inelastic colliyux4;rj2x 0htsion 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 obje05 n nlycqg+a nbud+o;9qpc,,ct experiences the larger magnitude of momen0uc p5 bgqn,no;dncq 9lay,++ tum change?

  In a game of pool, the white cue ball hits the #9t e6f onzuu9ny--med6xy;:667/j ;sa j ark zv ball 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 the following stdd7*tmkhlb 0 i 4.)r xx-,js3tk:gbshatements is falsgm:- *4tidtdlhk k3hb 0bx.,ssj)x7re?

  Which of the following is aq )b/p4eeeqt h oof9g 7aj-f59w2vav9 false statement?

  Tightrope walkers walk with a long flexible ro :so23 mdnc,n s wue0r/0qier*d in order to

  A plane, flying horizontally, releases a bomb, which explodes before hitting t5d99 ump xkaohrro(r/05q gd)he ground. Neglecting air resistance, the center of mass of the bomb/r)rod rk5 gup5 9dox0a9m(hq fragments, just after the explosion

  Two cars collide head-on on a level friction-free u 8wg0l qilb71t+ kcd/road. The collision was completely inelastic and both cars quickly came to g+ tid k1bwl 78qc/ul0rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a :zydm* dgylbs8 w k dzwd: 2wbhp6,sj:()1ns1system of particles.

  What is the momentum of a 20w.r) tu4ph134m mfq zz00-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving;-ihaum;ogdq( 9fbj+1 6 qthb south at 20 m/s. What is the magnitude of its momentum(b+hq m ;tbh fq69ud ig1o-aj;?

  A ball of mass 0.10 kg is dropped from a height of00;ufsxhc4s q ;pf)pd 12 m. Its momentum when it strikes thd quf;0s); ppx4scf0 he ground is

  Two identical 1500-kg cars are moving perpendicular to each )xh h;brqyw/u8ws1p 6other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is b;81w/yswq h )pr xuh6the total momentum of the system?

  A handball of mass 0.10 kg, traveling6*h;k7 js o skpfv ay2e yp01syw)fi7+ horizontally at 30 m/s, strikes a wall and rebofeah v)1s +ki yk6 72fy*sys;pjp0o w7unds at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s,*bt, dsov6 6a7d0zm 0e+ant iy is struck by a racket causing it to rebound in the opposite direction at a nt6mzy,+ bt as 7e 0ad6*0vodispeed of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseballue5 rf5s0kfg 2) 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 rg0 fku5f52se is the recoil speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spa7 qs 36dsof0qj2u1+qtl, 4xyj hzws7ece-walking outside the space capsule and is stationary when the tether line breaks. As a means of retuf eqyoj4+ 32sjs 6,s0txlwqhd 77q1zurning 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 ol.x vdgt1kxuz:4,9 pgbject at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgxk9g1 g.:d 4z,xlv uptm/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 gree pd3.is0 nh a5sc 1jxejljx1:)c, +dtvt your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each otherh1j)dxtjx: np.ci c+ a0v5, ed3slsj1, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straigh, nyg(o. knsm.t road at a speed of 6.0 m/s. It collides directly with ,. gko.(nmsyn a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelinvyt:g ust0.ibm6zt *h/)1dc gg at 25 m/s runs into the rear of a stopped car that has a mass of .dt 6 u/tgz v:)*ymgcb1its0 h1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allow 5y jccy538r1ujkf vdy5y1r3z ed 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, initially at rest and with brakes released. What is the speed of the two cars after coupling? fz13kjuvyyr1 y 3c5 c5rd8yj5

  A railroad car, of mass 200 kg, rolls with negligible friction on a ho:7qzen lr:bz 5rizontal track with a speed of 10 m/s. A 70-q75enz: lr zb: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 0.80 m/s (wi0xm3,uutx; nath respect to the log). With what speed does the log move, with respect to the s3,0u ;mx xautnhore?

  A 4.0-N force acts for 3.0 s on an object. The force ;u pc7.gqte5psuddenly increases to 15 N and acts for one more second. What impulse was imparted by these for7.puc5;gq eptces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg objemh9e,hk ygb48hn h o59ct. What is the object's e4g9h8n5,yhohm 9 bkhchange of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall ankqbw9+m-ixq iuw(hbe -f.( hs+eg 0j 1d (kmu +ieegwiq1-+ws .- hbb9fhx(j 0q comes to rest in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit twx 7:9zl 2 dylhz8j xqrh1;:wihe 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 dx : zh:iwh;7qr xj2zl198 lywis the magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds1wt3-6+lf, snqr0v .pgk ujcrd:g ae ; 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 betweejt3.v0q,ceklwd1 r-a; + sp:guf r6gnn 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 3;( ipt+fmdo b;5.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, ai;otb+fm (;dpt the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turnedvg d b 0mjr)jswktt 8;s+45+zt on 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 second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce b ;dk+tsg 80j +mwjs)5rvt z4tback?

  Water runs out of a horizontal drainpipe at the rate of 120 kg per minute. I +bbn,s -azd5z:n e1jot falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground? ,z:ajnnebd+15o s-zb

  A toy rocket, of mass 0.12 kg, achieves a velocity oz 1t9gh8 7wsdgv6zr m1f 40 m/s after 3.0 s, when fired straight up. What avt8gdm hw1v 69rg1zs z7erage thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 4nqm it 3iibb)1ei+k96fs6*7i or2,p ufwsin 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lights o f*s6,iqmnbw3bri2u ii )7 1+f46ie9t kniper astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 bl oc ,8n4kzgwae:)bme e-(2o 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 after the co be2(8) :,owb no4l-gek mzaecllision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a hea g*xs+*; xxr(cb;z )d6byyb gad-on elastidag6(*c+s)x ybb;* y;xzgbx r c collision 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 fired into aam/0oaonu ;zt d2m m (wi8nr6- 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 righ iumnamt8 / o0 (ra6zmw;ond2-t after the collision?

  A proton, of mass m, at rest,ep .qq.iemwys3(l 0a;l8lh- h is struck head-on by an 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 h0 p;se- l8hhy(wamiq le3.l q.ave after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s colli6/tt.haxklg +des head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediata+6.g /httklxely after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s c1e )m a0,axmziollides head-on with a 200 g ball sitting at rest. The collision is perfectly e10ma ,mi azxe)lastic.
(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-olbhm)k+1vz .f n with a 3.0 kg mass at rest. If the collision is pe)l+fv 1mbh.kzrfectly 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 collides -w-4kki0754dm kl)4xets tm dff i,fkhead-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during thisk -)wilmdxd44ft5 k7sk-tm 4e0,fikf collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon, *n4;t u cwgcb68vf-cm;x/ o ls5. tyklwho's mass is 2m. The bumpers lock toyxtfo*tgs6c.mkcll cb8v;- 4 ; 5nuw /gether 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 bu4f+ ye e*pze6vries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulletv4 peyeef* 6+z/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 coll 6px/,uw(yk* o4sg r zzum)2hfides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together aftep)m 2 u,zkxh /*6su4wz g(oryfr 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 a 3000-kg car tir klr+n,o( ;.(xkg hzraveling at 60.0 km/h south. The two cars stick together after the collisiok gzx,;ro(.ri+l(hnk n. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless t i+2).yiororb /gas0 surface. 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 after t 0iab/rry2i tgs.oo)+he collision?

  A small bomb, of mass 10 kg, is moving toward the o85ksbwdy jd * /-sgar 0qk*e9North 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 movsy *-war *qj5 90gsbdo ekkd/8ing east with a speed 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-kgy ;* 3 g) kxtx(z+/jl1/6iqqgjl ouurx mass sits at x = + 21.0 m. Where is the c gj*lux1(3gu k )6zij/rx+;yq/xtqolenter of mass on the x-axis?

  The center of mass of a two-particle system is at the origin.kj 2 ,si ,ykx)vjx2uc jrp3;u4 One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3v jxjjk )2;, rxick43u2y,sup.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kxi/m iu 3s6 q7py:9a3.jgp qukg at (2.0, 0), and 4.0:xj 6/pa.q9ip uk3 q g3ysim7u kg at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located xi;/ gjhxd3,dsh 3w:c at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectivelhg xdj,/wc;3d3:i xhs y. 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 positioned at (jagtb 4 qd- 0b76h,cjl12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of m d76gh4 -b0,cbat qljjass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of th 37*vmyqrj j9te CM of a whole leg including the foot when the leg is stretched straight out. Assume th3y j9jr 7*tqmve person is 1.60 m tall.