What is the SI unit of momentunp8a2m fn;q0wm?

  When a cannon fires a cannonball, the cannon will recoilzpd0 ev;msl8 oqh5;l ; backward because the

  A freight car moves along a frictionless level railroad track at0 6/(qi2iddlha 3jjbkl aahah *s7bmr1* e /p; constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens t2*k* b1qmaahaj3e0s67ljhdb lar( ;//id ipho the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What hajkl sj 27 0q/7g)bjzzzppens to the vezjj2z7q)7g jb0k l sz/locity of the sled?

  A rubber ball and a lump og- cgm2dnb(8i 7udhr*)5rk laf putty 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 experrrk g-2 hac8dbn dli*m7 u)(5giences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would yomw4a p+(xvuuk (azv6hj7y5;mu represent its kinetic energy in terms of tv;(5uw+hxm7akyjz au (4 p m6vhese two quantities?

  If you pitch a baseball wh ut hd2aj5jd o t+iv7a9;*)ywith twice the kinetic energy you gave it in the previous pitch, th2vad*9y 5jtidtah)u jw7 ;o+he magnitude of its momentum is

State Newton's second(hidvup*p0uq /(0z xi law in terms of momentum.

State the law of conser3uw4rv v;0:i r8 /hqzyhyt h4wvation of momentum.

  The area under the curve ot, 7knw- w ;xy+dtjwp4n a Force versus time (F vs. t) graph represents

  Which of the following is an accurate statement?kg3 4jv ) 4w,kno xaeupg++;nv

  A small car meshes wite+v1b n51xxd9l r .fsch a large truck in a head-on collision. Which of the following statements concerning the magnitude of the 19l+. brnvxxcd1ef s5 average collision force is correct?

  Two equal mass balls (one red and the other blue) are droppextaj3b,8cli kb z6.r: d from the same height, andlcbzj .a,:rkb6tx8 i3 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 eag;z1, . f9bzd m.**fs/91t h/jfv ovoyzfjilwst at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ball moves very s.*j/; b9lz,jo*ftv h 9gfszv1/m oy.fd1ifw zlowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce o n zgm(ywz:kg9a5 ia2 pgyf.:bi;5oo :ff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a2/ q8(xz g kyvx 4la35gvzy9 rpif6bo/ 6.0-kg object moving to the leriov xgp6 5zkb2aq3/4g8y zvlx/fy(9 ft at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles headndp/ cv7.8g a o+oo3wh-on an 80-kg halfback run+n73 wd achop8.v ogo/ning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision 5z79.x/th df* wpic9w +ndcir, if the momentum is conserved, then which of the following statements is true about kinetni5zt/whd i9rd.79 x f wp*c+cic energy?

  When is kinetic energy conserve)ow3plh)5 mn4a5 d-yxwk 9qwid?

  In a game of pool, the k 8dwm7v/q 8m;;u1t(i lmujkswhite cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. The type of collisionm/(qdl7k8j v8smu m k;t1 wui; is

  When a light beach ball rolling with a speed of 6.0(omygm,fo 4y - m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will bey oo,my( 4fm-g, approximately,

  A golf ball traveling 3. e om/cx*o.xbvm 1nh3:0 m/s to the 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 imm. o3b/o1v *mxnm :xcheediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with an identfwzq,fyqm4qr 1g2+1j ical ball at res+f1jqm 4yr q1z2,f qwgt. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed 0jz5 zr gt852(*c ujlow-knco. 4jjog v collides head-on with a very light object at rest. The collision is ela-cktjjlczrn 0w25o*g5 z8ogujjo4 (.stic, 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 hea vmqs99 ;l3cy 9t*jghuvy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The sc9 9vjmlqt*9sh3ug ;ypeed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on witxb9wj0p) )tsm h a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of tt0bj)x)pm9 w she yellow ball after the collision?

  A very heavy object moving with veloci ab(vqx2 h)+lity v collides head-on with a very light object moving with velocity+ axi2vqb(hl ) -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 whickvzh5x9zxn1-u l*q p0h of the following statements isnxl zxkv*5q puh0 z19- true about kinetic energy?

  Two objects collide and stickfv l-on3 j7t(n together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. e,7 koo h(d(;cnymi9zd0rg0a It collides in a perfectly inelastic colh(k; 9gandrm0z7 ( c ,o0eiydolision 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 zt2 wk0zicps-;zr /n7and sticks. Which object experiences the lar-pk iznw7 z2z;/ sc0trger magnitude of momentum change?

  In a game of pool, the whit u-*x9ybj5mpze cue ball 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 fo(bjfj19 7bmvxws 4* gfllowing statements is false? j w*m4gf9xv7b bs(fj1

  Which of the following is a false st0z0j7vp 0;ae9nvl wma atement?

  Tightrope walkers walk with a long flexiblsw dm,u0b q7w)e rod in order to

  A plane, flying horizq(ora,+;hjfx ontally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after therqoh+ jf;(xa, explosion

  Two cars collide head-on on a level friction-free road. The collision wadig;ie 0 xh(2yyp-qi1 s completely inelastic and both cars quickly came to rest during the co1ph(y ;qe -0yg2d iiixllision. What is true about the velocity of this system's center of mass?

State Newton's second law for a system of parti3xv6,yte( khrc: d85t;fst tk-z 1dlqcles.

  What is the momentum of a 2000-kg truck travsfd1o.me id w+ ngxk,5q;2/ wveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. W en7uwbon/,h3 rejsu, f0dwbg1; j t57hat is the magnitude of its momentrdub, ww/; njosjgef ,eh 3b17 570tunum?

  A ball of mass 0.10 kg is dropped from a hei:utgu)v5:iotx , agq 7ght of 12 m. Its momentum when it strikes the ground i5x7gugtv i :uo:taq,)s

  Two identical 1500-kg cars are moving perpendicular to each ot.c * avhzi;suoobw2 8.her. 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 o2ia*z8cu owbsv;h .o.f the system?

  A handball of mass 0.10 kg, traalsmd76 f5f7aljl0 -tveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/t7lfm- dl0f6alja5 s 7s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed3ul :br;c d sih2.jh)q of 12 m/s, is struck by a racket causinrb3;c suj2d:l. hiq)h g it to 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 (e oiaqlj1fm) :)xcluding the baseball) 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 is the recoil speed of the pitching machine? (1)l)j:omf qia Assume negligible friction.)

  A 70-kg astronaut is pi ml, k6v0g6jspace-walking 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 hamme6v 0mi6p,kj lgr 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/s3 nh i)gz, 1)q;u,kuujuxmdt- approaches head-on a large object at rest. The small object bounceu;tn mduu,i1- )qh)j3,xz u kgs 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 4.0 m/sg5z8v k1lz hc3 to greet your friend (40-kg mass), who is standing still, with open arms. As you collide, while holdickgzh l53z1 8vng each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the right along a level, straight road at a spe(mr :2f.m2xyi(bn1f n1 vhl lyed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the nlymh r.f:2x1mfli y( 1n(2bvcollision?

  A 1000-kg car traveling at 25 m/s runs into qk v(mft3 04tjthe rear of a stopped car that has a mass of 1500 kg and they stict qjf3 tk4m0(vk together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is al4cx4 ze6iw zc8lowed 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 relei w4z4eczc86xased. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, roll dur7q3+xvcz98,nury s with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops su zqvyun r+ 8rc9x37,dtraight 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 th*0ru;n t)6ldjaa9eir e rate of 0.80 m/s (with respect to the log). With what speed does the log move, witrt9e a u0 *drj6a);ilnh respect to the shore?

  A 4.0-N force acts for 3.0 s on am1- vejh159 yklsr9pt n;5kcoh0 ph5 jn object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the object?h-e9 1h 5vc pkop0jjrn;yl ts 59m1hk5

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is the my72o 7 48 h/mi owzk)tn2irqj+ei7p0mz xms 3object's changh xokp4s7m82+/jqyi3)iw2ommr0z7 7z mient e of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall +o+gbme+ f8od and comes to rest in 0.20 s. What is the average force the ca8+f ogo+eb d+mr exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s.-jlt c.4abkj+qdj+gi;h32h y 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 thetk4j j;jih-a bl .23cdqhy++g magnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball rig( cj.s*w8ctz d 1e;ophht 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 and the table top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by tcohzt .d1;w *csje8p (he table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bbah22ksm -uv/ullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine v2u -b /mshka2gun mount?

  A fire hose is turned on 8jaxy nfy4y/8 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 8x8y/fja yn4y 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:m*+sfo,c npg n d*4lu falls 3.20 m to the ground. Assuming tg*,+dnpu*n so4 :fmc lhe water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velop kmn7tyda558 twjs/6city of 40 m/s after 3.0 s, when fired straight up. What average thrust force does a 8ydtwt7m/jkn 56ps5the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, agegh b4er46dbw(a ay k2,z-h )re initially at rest in outer space. They push each other apart. What is their separation after the lighter astronau4 zy(, daee h)k2b6-4hg wrbgat has moved 12 m?

  A 3.0-kg object moves to the right with a sbqi)9jmi ( djpvb 90;jpeed 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 after q(j9b0djb pjim ;)vi9the collision?

  A 0.10-kg object witjcwq gc-, a20ph a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest.wg qp,-0ajc 2c 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 rest. Thp):k r26;yzkc (uhtl fe bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the cylrfkc(u)h 6zk: ;t p2ollision?

  A proton, of mass m, at rest, i +4g *bmj)t/wld )hktcs 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 have after the collision? (Assume the netd /t4 lgkcjw)m*h b)+utron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary bj s 6)(,. r bfewksha(21-d,dqc nwo:wxbbow 8all of mass 100 g. The collision is elastic. What is the speed of each ball immediately aft dcb:.rhs8,6oon(2,(wa sxjb )ekf bww1-dqwer the collision?

A ball of mass 400 g moving toward the east with a speed ofx ui 7h06pnl7i 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elasp 70h6iil7nxutic.
(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.tqbqjs t/)5: /ms4 ;lkd6r mon0 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/d :lr5n ;m6b/o sjtq4tm) ksq the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collidest1)nc;i px odmw7z7o1 head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energmizpoc ;n)7to xd1 w17y is lost during this collision?

  A car of mass m, traveling with a velo (2-(/c.at hkdjn 09 nrwey5;yqjuvxlcity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock togevyrc jjy;- k/. ue(92h 5x(t0 nlwaqndther 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 r+o 09c2ra7 j/qduzsfitself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combis7+9a rdrfujcq 20/oznation 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 eajm3)1qw 6g g(j k+twdost 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 speed of the cars after c+tj g(o6g3d mjwk1w q)ollision?

  A 1500-kg car travelinga fkayo* b)p+85:kptl at 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 ok:tap *5)p8y fl kbo+af the cars after collision?

  Two objects move on a level frictionless surface. Object A moves east witat im5l3:lk. )6z lzhqh a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the .6t3lia5:hlzk lz) qm magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kgse jqd80wyzqx 3;/k7s, 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 third fragment? (Neglect air frisqkj7wx 3 ;dey0sz/8qction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg maslr ; (ou8k /::cqnqxpms sits at x = + 21.0 m. Where is the center of r u:c xqk;lo8n (/pqm:mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One egmzeu8*xv/q8zw9d6 ck .bf1 particle is located at (3.0 m, 0) and has a mass oqge18k ./vufz*68bc exz9 dmwf 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positiohiay+gv)pdpqmy-mz4 k y ep k5461(/sned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the cov6s/-4p 5y maippm(ykkdey1 z4qh)g +ordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are loca73prhx1d x 2mv1qjsr 1ted at (0, 0), (1.0 m, 1.0 m), and x3r1jvm 1phs2r71qxd (2.0 m, -2.0 m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), andp 6wxhbzk: b 3t(wfdgppjz3at2dgt /:xc. : ;: a 1.0-kg mass is positioned at (12, 0). What zxbbwdg ;tp : gc3w:t:/d x:p6t2fz.p aj3(hkare 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, 0)?

  Use Table 7-1 to calculate the position of the CM of a w,d tw f709 jf1u)ahhysa9iy(iuc7p ;r hole leg including the foot when the leg is stretched straight out. jt7 ;(yhf a79ifai) 9cuus 0 yrwd1h,pAssume the person is 1.60 m tall.