What is the SI unit of momentb10 2ioizlnm4 um?

  When a cannon fires a cannonball, the cannon will r9iy 4*4ozxnhy ecoil backward because the

  A freight car moves along a frictionless level railroad track+ h*6so c(xsk)6dlcwo at constant speed. The d*( c+)oss6kxl6o hwc car is open on top. A large 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 sledding on frictilidr6+c i /:/eoat t2ronless ice. What happens to the velocity of thcti i/oe62r:r at+l d/e sled?

  A rubber ball and a lump of putty have equal mass. They armu1, eb c)xxd1rr6k *ze 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 grea ,merd 11ckb*xzxu)6rter momentum change?

  A sailboat of mass m is movinhcbwe 1-mo0/jg with a momentum p. How would you represent its kinetic energyeb1hc -om w/j0 in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the pre4 o xw2dqwi/vw;0fbe8c6:rmzvious pitch, the magnitude of its moment; ew8qwi2fdwrx zc0 bv/mo 6:4um is

State Newton's second law in terms of momentu.oqh1o2xv**mzqj( oo 4jnht9 m.

State the law of conseb;:e z;buzr:q*n 5fah rvation of momentum.

  The area under the curve on a Force versus time (F l/tl4l.n ws6u 46urdv vs. t) graph represents

  Which of the following is an acom, ctf4v7i++mf fwrc+:6 yp fcurate statement?

  A small car meshes w htoy4aut -0 gj) a49lny30vdv9ann5fith a large truck in a head-on collision. Which of the following statemeojtfn 9) -v 4vt5nayla3y n9u0a hg0d4nts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped frombt uxmer 5w4as8jp:. /a 2tfopcb+6n0; ;vpfb 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 imwv+5af .2stbfa4oepn cx:;86p0tjp bb/ur ;m pulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collides with a statio0pf n-)8, tz jovbnz6znary bowling ball. The Pijzt0np v n-o b6z,8)fzng-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. Linear momentum yv)m.x.7vs aa

  A 3.0-kg object moves to the right/tderr j3aplk) 8b.h1 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 state8 )/ rhterdj 13pak.blment is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackle:edsz-wg.w8wbu1d *l w a9)dzs head-on an 80-kg halfback w1zud gd-s* e:lww)bzwad9. 8running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is consefdc-orz4/u,z +pdz8 xrved, then which of the following statements zp/ur+8 o4fx,zz ddc-is true about kinetic energy?

  When is kinetic enerj jyt(8; t gxof: 75usx dxw1zd*7cd-ygy conserved?

  In a game of pool, the white cue ball )) jrpjru7;vsnnbv-b *wg;.aca, g7h hits the #5 ball and stops, while the #5 ball moves away with the same velocu7 jsgwgh;,-aacbvr )vbn.n7 r;j* p)ity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s collides with a he7jl4oq/mn p:d ko) 8a4a4devhi, vgm3 avy exercise ball at rest, the beach ball's speed after the collision willg 4 vnm):7,ivea3q/hdo ko d4l4amjp 8 be, approximately,

  A golf ball traveling 5cxv +w6nv;venok:pl7 fjch- 89 -vam 3.0 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 immediately after tx6; a9on-7 cvp8mnv hvc5 lwke+:vf-jhe collision is

  A rubber ball with a speed of 5.0 m/s collid,)ddgz7a d:ao es head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collisiona7z g,o:a)ddd?

  A very heavy object moving with speed v collides head-onb1wh5:t.wyx/ gff4.9 qetyo m with a very light object at rest.w y.gfhm .wt1be5of yq9 :4xt/ 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?

  A very light object moving with speed v cod( ./a 6jzqrjo5+ewua llides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object afaa zr/j6 ou+(.5wqdj eter the collision is

  A red ball with a velocec ;(6i1gwyy qt(ka )xity of +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 aft 1xt( e;yiqy(kw6c)ga er the collision?

  A very heavy object moving with velocity v collidepo ua+,sjer+dg.3o5p s head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the spuo+e gdra. 3jop+p,5seed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then wkbp f7qjb k;6hsqt;hq: 0t18m hich of the followit7 hbk6:q8k ;ph qtbj0;sq mf1ng statements is true about kinetic energy?

  Two objects collide and stick nl1lwbi5aoagb +mdi7592qh 9 together. Kinetic energy

  A 3.0-kg object moves to th,426t; psxxdf ls yu 9w/yokn3e right at 4.0 m/s. It collides in a perfectly inelasticdytlp9wn4x us6y;2f3 o s x/,k collision 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. Wh-m9m.-gi6cq0+n+ep -iq q,ywnb vuoo ich object experiences the larger ma iqwme g+pyo-o9c+qm-u -v06,in bq n.gnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and is deflected at a d yq yc,f0heewg(,2 /d$35^{\circ}$ 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 iscnr90 zvb3,s v false?vr,0nbv3sc 9 z

  Which of the following is a fal4r:-oxdi f j5, ld8edlse statement?

  Tightrope walkers walk with a long flexible rod in orde(3 24 ecaxyh-) afze of)zxy09pmo7z mr to

  A plane, flying horizontally,g)tuj6thp (2ww 6jkvlv(c0 w * releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after (kwt2 uhj*w06j)g vtp6l (vcwthe explosion

  Two cars collide head-on on a level friction-free road. Tk;;x e..hi nqkhe collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this sys.hqnik .k;xe ;tem's center of mass?

State Newton's second law for a sy rcp qt8k5(lm8stem of particles.

  What is the momentum of a 200 y/ km*jbe0ss4a/8lus0-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at iw45 *lb.umgbs r85ss6 x9wq v20 m/s. What is the magnitude of its momentum8lg*s.6bmrsi vw 59 qubswx45?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mome+04y e eyz7rw0am-wup+ aefs,ntum when it s 0zwy r70emyesfw4u-a +e +pa,trikes the ground is

  Two identical 1500-kg car7afj25b k7w+xry nh c9s are moving perpendicular to each other. One moves with a speed of 25 m/s duxac9nry2 h+f75 wbj7k e north and the other moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizy +m +mq 3m2wtpw8ts,xontally at 30 m/s, strikes a wall and rebounds at 24 m/s. Whawq+, tx2m8p+s ytmm3wt is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, cz 1hwnys e3.6is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the bac316zs.eh w ynll?

  A 50-kg pitching machine (exclucqi xg ijs81 g3sg 3:k)n(io5qding the baseball) is placed on a frozen pond. The machine fires a 0.40-kg baseball withso xjin:1(ggs q53i)qig8kc3 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-walking outside the space capsule and is station/ 7f cx+h:irzjary 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 what speed does the astronaut move toward 7+hx :fzicj /rthe capsule?

  A small object with momentum 5.0 kgm/s approaches hzzczaxnz-zk.8 05) 4z am xk/oq7*u kgead-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the ma xzg/oqn4zkax7 cm z*8 kkaz0.zu)z5-gnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend (40-kg mass), whoz5n j j 6u43tnnd2i:nf is standing still, with open arms. As you collide, while holding each other, with what speed do you both movf 5inn:jn4 tzn62jud3e off together?

  A car of mass 1000 kg moverq1:e (6mhkgkul+fp 7x:)zyh l-f9 nxs to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentu)lnxpk f9h qfkm- z6xg(y7 :he r1+u:lm after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car that hasb6 o5fzs8 l;zv a mass of 1500 kg and they stick together. What is the speed of the cars after the collisfs8lz6 ;5ozbvion?

  A railroad freight car, mass 15,000 kg, is allowed to c .xwu1htj4t ;roast along a level track at a speed of 2.0 m/s. It collides and couples wi.wt 4h;tujxr 1th 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 negligible friction w u5*pu)hk, ivon 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 iuk,i * vhpw)5un the car. How fast will the car be moving after this happens?

  A 60-kg person walkspa)norll1/ r),+mjbf2 n q* jyg:*ny l on a 100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, 2 bnlpr/ly)g1j+ram jf nnq*,y l :*)owith respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. aneo+gni / ekm6v88y 0The force suddenly increases to 15 N and acts for one more second. What impulse was imparted bynvom /60aingeye8 + k8 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 objeceoc7 weov .::a ee-cx-t's change of velocitec .voeo:e -7cwa-:exy?

  A 2000-kg car, traveling to the right ,)mky ed 2q..orvdav3 at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the avmvd.yo. rqa ev dk3,)2erage force the car exerts on the wall?

  A 2.0-kg softball is o7-ml:, l hlf tlu7f6fpitched 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 ballf7hm t:llo6ul-7, ffl for 0.10 s, what is the magnitude of the average force the bat exerted?

  A 0.10-kg ball is droppe, .qegwk5 dh wnkb0w 1t*+hbo4d onto a table top. The speeds of the ball right before and right after hitting the table top are 5.0 m/s t.o1+q* ebw,dk0gw wh54bn khand 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 the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, w bnoe f8nv h7/3ui*oj,l/f7 trith a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average fol /*78enhn,o/ijbo 3 f ftvru7rce exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knockqg/2f 2 :k)hnnc8k(*y thvw dy the doo*wdnv cy/)g : hf8nyhkkq2(t2 r 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 back?

  Water runs out of a horizls;6ok h:,adufjn s9q1 c8 6xzontal drainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average ;x, 9:lzcnjkfud 6s1sq a6o8hforce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 ssl vjc3v5w2w;u y 33fy, when firecw3vy;3v 3f lsuwy 5j2d straight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially*:g,*in m h46v3k hfnps 3brhg at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 12 m*m,34 *kf r vbpgngnh6i: shh3?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It collides in a pesf -t(59gorz qg( hk)prfect k(gq(9 t-)rgh5psfoz ly 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 collision?

  A 0.10-kg object with a velocity of 0.20 m/s zf7yuled( 3 3vin the +x direction makes a head-on elastic collision vd 7lez(3fuy3with 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 iprq ew454 wc:xnto a 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 riec5rw:px 44wqght after the collision?

  A proton, of mass m, at res3iz4 ,-rl y:q m;nkuwwt, 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 have after th:mu q-i;rk,wly 34nwz e collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s coll,)m:y6xoh ve c*gc0jv ides head-on with a stationary ball of mass 100 g. The collision is elastic. e0xv):yvc g o hm,j*c6 What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed o ).pmenr7* s ,bcamw(3ipds ,qf 3.70 m/s collides head-on with a 200 g ball sitting a) pd we mincb3 (r,s,qpm.s*a7t 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 col3+4*jaitjx , (s o: an9wxago;uezk-jlides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses afx3te:nw (z-,aj+ajo g49sa xki jou*;ter the collision?

  A 2.0-kg mass moving to the east9u3t;k+:1aw s .v ccntsx4b gl at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collb3v:1atc+ ugkt;lw nx 4s9.csision?

  A car of mass m, traveling with a velobtpe8z- dq bmi9s2vzr e/23tl 077rkzcity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ener /emr-d b30k9z7t el8b2v i7qzzrtp2s gy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself inj z./mibcf 6 d,vw+s0q a 2.4-kg block of wood a rest directly above it. As a result, the b,i0 vjs mzfwqb/dc+ .6ullet/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 colnojcx8 ewh 0s9z,4,fl lides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. ,h 4lx 9c,je80z nwfos(See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveli8;rt wnxeut5)ng 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 tnt ;58rt)wxue he direction of motion of the cars after collision?

  Two objects move on atmoy+ q+we*:b level frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfey*++:qm wbto ectly 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 a velocity of :pu8u88.cdnkmm ma7 bkk2.e p 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 dumb8mkp8.7u8k kp:nc am2.ewith 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 ibsup1s+d+l; a 10.0-kg mass sits at x = + 21.0 m. Where is the center of s;l ++pbds1iu mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is l, v;,*rw-k:n ufmk 5 v3dfnxxlocated at (3.0 m, 0) and has a mass of 2.0 kg. W:3 ;- nvnxuf*m, d5frk,kw lvxhat is the location of the second mass of 3.0 kg?

  Three masses are positioq fi;; muym62wq ex2 y/ko9qn0ned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0).n0/f w 926uiqeo2mqxq ; y;myk Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located 12.cvezv m/vjat (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 1jzcm2 vv/ve. 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), and a 1.0-kg mass is positioned at (12/i4d( +zla2g:pyv ev cr(z,i w, 0). What are the coordinates ofr:/2pizaze 4+viv(d cgy( , wl 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 whole leg includin9 sk (;.qp-h4athpt4.i)h *yvj9.ff zqd mkycg the foot when the leg is stretched straight out. Assume the person is 1.6094)ia y hf.hm tp pyk c(;-4t9qqhfd.sv*jzk. m tall.