What is the SI unit of ml/h10fxom r7nomentum?

  When a cannon fires a cannonball, the cannon mh5oy k:*f+iams +a dd1 *-upnwill recoil backward because the

  A freight car moves along a frictionless levn+e *j- :zez*b4bhovwel railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. *b-hj+w4nbe v*ezz: oWhat happens to the velocity of the car?

  A child falls sideways ooaf-f* yrd o* ;w(x87i7 suocsff a sled while sledding on frictionless ice. What happens7 yd7*of(- 8ocowf;rxaiu ss* to the velocity of the sled?

  A rubber ball and a lump of put ir9q59 6ql)cn1ju mytty 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 experiences the 6jitlq) 5cnyu9m91rqgreater momentum change?

  A sailboat of mass m is moving with a momen/rc9-d 3iehmw4f ) gzytum p. How would you represent its kinetic energy in terms of these thzre3d) yg4iwc 9 m-f/wo quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in stg.(:fpv p8 e57aml ythe previous pitch, the magnim . gl(y:p8af e75tsvptude of its momentum is

State Newton's second law in terms of j j wnrmf/v.p+80wcb*momentum.

State the law of conservation of mome8* k-(njdaz c/c kii(gntum.

  The area under the curve on a +jqa 0h,i,ig(wy7 sdyh d e,;rForce versus time (F vs. t) graph represents

  Which of the following wu29u. murbr, w8*r iuis an accurate statement?

  A small car meshes with a large truck in a head-on collision. Whic-(a kk0oxeh:r h of the following statements concerning t-(xe:a kokr0h he magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) vr) b ite 2fc7n1;n0djtf)b)dare dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to th0 f)v1bn cj;fe)t7 2tbidrn d)e greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed j(yefas2 i.k*gas/)4gy1 r fcof 4 m/s, collides with a stationary bowling ball. Tcaj(2f. 1gf4ke/ yar sg*is)yhe 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 collision?

  Two objects collide and bounce off each other.)*h74g kqfcw z Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collidew twve rb(/,szh97;hhht n6u 4s head-on with a 6.0-kg e(,/z b vht s9w7u6rthhn;w4hobject moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-oyf;la )wi:u 2an an 80-kg halfback 2u wial:y);af running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if thedryet4pqv 96;ca 6q:e momentum is conserved, then which of the following statementsatpeeq9d y66v ;c rq:4 is true about kinetic energy?

  When is kinetic energy c :st24b uyf-xa i4+yg9niqa f 4z11mcsonserved?

  In a game of pool, the white cue ball hits the #5 balljo4 vy+9d**z*gu j( udxy s:7b .xwdif and stops, while the #5 ball moves away with the same velocity as t(x:z 4 .9vudg7idxyu +bjwsdj*of *y* he cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s ctg3.-bxvh,)wfp1k y jollides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, apfkghy p)x,w b1j-vt .3proximately,

  A golf ball traveling 3.0 m/s to pvext+qj 3 s4f:b 88atthe right collides in a head-on collision with a stationary bowling ball in a friction-free environmen t8 e8:fxbspq+tjva 34t. 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 collides head-on elasticorgp4pm b5 y30 4y;eaqally with an identical ball at rest. o y ; aqymb43pr405epgWhat 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 ligd 3xrlrnh50w ;ht object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. wh5xr3 l;nd 0rWhat is the speed of the light object after the collision?

  A very light object moving with speed v collides h0-4+urfcgt*gv9ztt 2kr 9fkf ead-on with a very heavy object at rest, tk 0fz trt*gvg4k 2f-+9f rcu9in 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-on with a yellow ball of bzheet,ptq7 oe9x;: *equal mass moving with a velot qe; :7, h*9oetxzpbecity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v collides head-on with a very ligohh */5hhay5ght object moving with velocity -v. The collision is elastic, and there is noa h5 *5/ghyhho 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 conseg0 crf0j ctp/3agw5:z(gi3 sfrved, then which of the following statements is true about kinetic engpftaw3 gz :/0fr0 g 3c5is(jcergy?

  Two objects collide and sti61gf6wo1phm - eb-ueuck together. Kinetic energy

  A 3.0-kg object moves to the right bsz*3svkuel0ud hl 8 ,*l. t2aat 4.0 m/s. It collides in a perfectly inelastic collision witvhda.,tl2ul8sze 0k* slu *3bh 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 expa30mzz1w pjtd 4u /u2qeriences the larger magnitua1p3w2t4mz / zuudqj0 de of momentum change?

  In a game of pool, the white cue by+u 8m7m2 *n0a tkzapmall hits the #9 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 statements / c2np6 g,ujcl/ jco(eis false?c guc/pl 2,j 6(oej/nc

  Which of the following is a false statedzyoxq/229 sck5m ) vx8q r, bi8uyue:ment?

  Tightrope walkers walk with a long n08ew/ 4fektz flexible rod in order to

  A plane, flying horizontally, rqt;. mny* tk+beleases a bomb, which explodes before hitting the ground. Neglecting air r k+tb;qnt* m.yesistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisiowb;q+5fxfgb r5 0mw+z n was completely inelastic and both cars quickly came to rest during the collision. What if+m w0bbwrgf55 x;+zqs true about the velocity of this system's center of mass?

State Newton's second law for a system ofu7)v6z e irw)p particles.

  What is the momentums+y c2c 8liev( of a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is movin.f1lfnv 4 c5fh2 lnk*mxe/hk/g south at 20 m/s. What is the magnitude of its momen/2ml5efl h *.v1cfnkf4h /xkn tum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Itz;xy:7nrl1 e puoy5t* e9:sobs momentum when it strikes th57e1y;luyoz nprbx:o: ts9 *ee ground is

  Two identical 1500-kg cars are moving perpendicular tc fasb:jmt++z38y+w mo each other. One moves with a speed of 25 m/s due north at cab+f: 3w8yjmzm ++snd the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, travelingz9qar, xu :urmd, s (6thk9n)z horizontally at 30 m/s, strikes a wall and rebounds at 24 mz,q(:9rh6trd9)asuu,nzx mk/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, inir3xa -o) was7y,qe)mt tially moving 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 aaqo x))w,er3t- 7smy. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is plac99jvn gqa :v- ;ncf:tyed on a frozen pond. The machine fires a 0.40-kg baseball w9yavn-q;: g:jf cnv9tith 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 is space-wazd*n q gxs7k94rvqnx 7a/u2x ,lking 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 what2krx vsqda ,xxgz qu/ 94nn*77 speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at regb 0 o5mxpy5gmu67, dcst. The small objectd6,5gm50goup m7y cxb bounces 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 4cam o1ec z n0e srma+)/rv:d+4.0 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 both move off togethe a4dr +c :oce/1r0emmas)vnz+r?

  A car of mass 1000 kg moves to the right along a level, straight road at a s )i w rubbw(+-t-qim)speed of 6.0 m/s. It collides direci)u+q- i-mbr s )t(wwbtly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs inq)lfh0cj7;,m r udhz3p0 t)7)s)rg p 2oydxcf to the rear of a stopped car that has a mass of 1500 kg and they s) 0j) dmg q7zc3 f;udfhoylcx7ps)pr,tr 2)0htick together. What is the speed of the cars after the collision?

  A railroad freight caruchnm 1e(b.m8 s/q+or, mass 15,000 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, initially at rest and with b .h+ mueqmrs/co 8(1nbrakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls :f0tl rkk0zv3 with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0 m, and lands in the car. How f0:3 0vrzfk kltast 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 5ns g4rrn44lq(with respect to the log). With what speed do 4q5srn 4gl4rnes the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. jmx49d ,q4yp j The force suddenly increases to 15 N and acts for one more second. What impulse was ixm jj4y ,qd4p9mparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg obj n2za5v1oh*lo ect. What is the object's change of velocitlz ova5 h2n*o1y?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall andxdrv3bn+px -j s e :1ik81kso4 comes to rest in 0.20 s. s+rek3n d41:jbxo kvs 8xp-1i What is the average force the car exerts on the wall?

  A 2.0-kg softball is pidy 9x2h 3vn9lcg1 o2k rtpr*jz g.2bj6tched 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 thn9 9 1kljt*326 j zyvpggdbrrxh. 2o2ce bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball rightk8y t vr1m f3e68rs-jd before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision mekdrfr 3j -88t6s 1yvbetween 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 bulle wvtak64ox7 qhrq60p +ts, with a muzzle velocity of 7kt6xqw47 0vph6+qa o r50 m/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 oxva eq58jl+dr -tw3+q n 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, assumingd+3t - arwjxq8+5 qelv the water doesn't bounce back?

  Water runs out of a horizontal drainpny;2(tc r vnpd6,; diripe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what n;rvr 2 ncyt;(,ddp 6iaverage force does it exert on the ground?

  A toy rocket, of mass 6f9 od//g3cez dhwg1ofoh /v-t*z5 by0.12 kg, achieves a velocity of 40 m/s after 3.0 s, when fir/1fhf6 hd3/bd/ogy*z wgceot v9-5zoed straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at r,ci ly 90 swenz)mn8kpv8;fm1est in outer space. They push each other apart. What is their separa8yn pzem 9),1wm08cf ln ;vsiktion after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the rigqg: 6-c x) k;ukr:n1r; tn c6,bvbdceght 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,k ;nt6cqg-;bxgur1kc: : )e6b n cvdr.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/shyl) p8l u8um./y9 bjj v0mt9c in the +x direction makes a head-on elastic collision with a 0.15 .0 jth9l mum98b 8vuyylp/cj)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 a 1.00-kg block at rb d3 jq0,lum7gest. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocitgju7q0ml,b d 3y of the block right after the collision?

  A proton, of mass m, at re t-gm:hf2gx q(z6lei+e l0t5i st, 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-tex 20g6eil :q+ z(lth5 migf alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on zw( o1sa0 zpb,7r kq/dwith a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball iz ,s qb/pok0r az7w1(dmmediately after the collision?

A ball of mass 400 g moving toward the east wit/yiolo21k 3bs h a speed of 3.70 m/s collides hea 1s3koli y/2obd-on with 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 collides head-iz5ntr,2qr0 7wzmp k ,on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses aftt0nw 2z5qi,prk rm, z7er the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s u o9gs7 r3+ g*8poy rcz ztyccelj4l i8lh:041collides head-on in a perfectly inelastic collision with aegjcuz cl lrco87y0h4:p+9rto4yg i38 1 *sz l stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, a58:r.x zzl6dh fkwp6 strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction f 6zprwaxh6l.dk8z:5 of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 2139wop0pvltg r,*jgh4 9 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves verjghv wpo9g940l pt r*,tically 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 p,/-oiy9c*qayl ;ixrf d 6e)aat 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. (See Fig. 7-1.) Walo*e;a6 i 9y ,)qyci- r/xpfdhat is the speed of the cars after collision?

  A 1500-kg car traveling at jr55zfwrh2v66*4 h x zml+lf zkqy 1u.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. (See Fig. 7-1.) What is the direction of motion of thz+j hzw4xu fm zqkf6*y16hv 5l5r. rl2e cars after collision?

  Two objects move on a level fr4j 1 myv:v8bakf5v zx.6ve: hblac9s2ictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves n:6 2:4y s 5mv8jvkh91v vbc ezlx.fbaaorth 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 ki; f)/qm.b7 hiq1k udcg, 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; and a third fragment with a mass of 1.0 kg. What is the velocity of the thi1;7uq/fidk c)hiq .b mrd fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg masskr9u6qc(bvm, +f6 jpz sits at x = + 21.0 m. Where is t r(bz6 jfc+6u,p9qkvmhe center of mass on the x-axis?

  The center of mass of a two-particle system is at thom9s wu)fi3 1pe origin. One particle is located at (3.0 m, 0) and has a mass of o )wp1ums3 i9f2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: u7a4wm /t n 45je4c1vnr ta4a:)huicc 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the cenj74 45w :a4 ucrcmn cant4/ vi)1hetuater of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (1.obcd s+3ne f.18lilfj : 7q3ez g -d,6i0grlaa0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. Whgb7 :nrl,dqd0+8 f3 joifslze6.aig3lac1- eat is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0(4okt ; ebf qs-./b-xgt sa+gp, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates;tx-oseb.skgg4 b/qafp+t (- 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 of the CM og,+,5 s vl/ou* sbeo gpgshla4s5:+icf a whole leg including the foot when the leg is stretched strai,4, ss*o:geslla hb c5gpis+g o+/v5 ught out. Assume the person is 1.60 m tall.