What is the SI unit s*kt8:l -fsrcv:q4 y-uc v4aoof momentum?

  When a cannon fires a caoo) :10h0qvfh avt by2nnonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at constv;c l+gzg 26d3,kyyow8fosv + ant speed. The car is open on top. A large load of coal is suddeng vs,8g yfk62vol;+c3yd +w ozly dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sx - 4yx9qugl8nled while sledding on frictionless ice. What happens to the velocity oq g lx9uy4xn8-f the sled?

  A rubber ball and a lump of putty have y5ab;cqb)xs1c,j d7b( vy r ,oequal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed c b5sovdb(c;,yra1x ,7by q)j 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 pw4q7(fs2,qc l 2jq4m kf3raqf. How would you represent its kinetic energy in terms of these twl qfqffsk2 ca, r4(j m73wqq24o quantities?

  If you pitch a basebatf qd+,3n7sl2o +u7zaper7 urtw/n0zll with twice the kinetic energy you gave it in the previous pitc7ow qpz7+rtlu 3ns2u 0et/a+ zn7frd,h, the magnitude of its momentum is

State Newton's second law in terms of +1:va0fj( ;f-avrb f irfh1 sbmomentum.

State the law of conservation of momenthrz9 gm8y( .tpum.

  The area under the curve on a Force versus time (F vs. t) graph pk.3 1)esq fpwtgrq25represents

  Which of the following is an accurat243ca sedi48h anz gj:e statement?

  A small car meshes with a large truck in a head-on collision. Which oz-)9m6m4 ljiqqt2u zef the following statements concermzm )tuj-2q9q e4li z6ning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and m eix4rc9cc: 3hzw* g1the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a:chz4 cceg wi*39mrx1 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 wxv(c9.vdgj5n )5;yw uh aoks6ith a stationary bowling ball. The Pjc(.xwkva6nd v)usyh; 9g5 o5ing-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 momentlbqbou2z9/ iqb5.pa ;um

  A 3.0-kg object moves to the right at 4.0 m/s. It collides 18mmf)28g ( iaskaynnvx us230dbxa:head-on with a 6.0-kg object moving to the left at 2.0 m/)b( sadgu1 ak2nma8x8i2s3mx 0fv:ny s. Which statement is correct?

  A 100-kg football linetpf0j)th ) 16oqfjqn 7backer moving at 2.0 m/s tackles head-on an 80-kg halfback runnip0j )nft qof67qh)1 tjng
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 thozn9u m -,.foge following statements is true about kinetic, o-n9fuz m.og energy?

  When is kinetic energy conser4 3xav)xfq +z) vyjd5jved?

  In a game of pool, the white cue ball hits p)fls1hft.- ithe #5 ball and stops, while the #5 ball moves away with the same velocity slpt)hif1 -.f as the cue ball had originally. The type of collision is

  When a light beach ball:i hzzk nb8a bn288pbdfox;+7 rolling with a speed of 6.0 m/s collides with a heavy exercise bhn;7azbi+ 8f8 x8zb dbo:knp 2all at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s yrtl if)/t8oa p;ua(,7l (acfto 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 ,t(/ 7 (apa ia fylfr)to;cu8lball immediately after the collision is

  A rubber ball with a f5(v7vn4+c b y rjccp(speed of 5.0 m/s collides head-on elastically with an identical ball at rest.rcy(c5pc7vn4j +f v b( What is the speed of the initially stopped ball after the collision?

  A very heavy object moving wi4sed:gp/zkh 1lb 6 0xvth speed v collides head-on with a very light object at rest. 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 colli/0s6 x1 vlekdb4ph:gzsion?

  A very light object moving with speed v collides head-on jg e,p1fwiv+t .89nr8fzl ( m)pvd2n awith a very heavy object at rest, in a frivjve i ,nndp8afz+ l1p t89rf .(g)2mwctionless 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 hwl qn:mi3h95 pl t5d9ce,eg5wead-on with a yellow ball of equal mass moviwn9e, cm 9pd5lqtg553ew: il hng with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with v8,sf :eu -rqcoew7ty+elocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no frictionwru-eo+c7 8ytf,q :se. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collisiond ) xu/z8h7qep, if the momentum is conserved, then which of the following statements is true about7udq)p8 ex/hz kinetic energy?

  Two objects collide and stick together 2s-/r)pvmtx4 j ay.f:(jv hsd. Kinetic energy

  A 3.0-kg object moves to the rig1w(4jiv nw/ yib:psm9+;v x xsht at 4.0 m/s. It collides in a perfectly inelastic co1 x4/+ibmi xnww;vspsv(:9jyllision 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 object expet0h foq-on4nh.cp u:;riences the larger magnitude of momentum chann.c4pnu;oh ot:-h fq0ge?

  In a game of pool, the white cue ball hits the #9 balt. i8e )t zljn8hew10ys u1n9wl 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 statetfn yfg7ln(cn*7h -q+ments is false? fln -7 n+gyh(*c7nqft

  Which of the following is ;sb.aes4y *qi a false statement?

  Tightrope walkers walk with a long flexible rod i .h9o e-oyshy9n order to

  A plane, flying horizontally, releases a bomb, which explodes before hit9 2d owwr 2:jkwcs/j7sting the groundw sj2kdocsj:wr /9w27. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The coll3 n4yg6 lekvoe5 ta l8oue7k)*ision was completely inelastic and both cars qui7a4yt 3no5egu6o*lv8 ke)el kckly came to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for 7g7jixhe;5ib a system of particles.

  What is the momentum of a 2000-k b24/2l 4oxwtp/tekakg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitude ota*.lt woc mu-)u/kn ab 1;5nbf its momentum? -u*k.)lbat5a n wt/u1on;mc b

  A ball of mass 0.10 kg ktvu +32vphu9is dropped from a height of 12 m. Its momentum when it strikes the gh +pv2uk tvu93round is

  Two identical 1500-kg cars are moving perpendicular to each other. One moves wf kg40kwu-3 e nzx5b)jith a speed of 25 m/s due north and the other moves at 15 m/s due eastb jfn5ke3zu0-x)gw4 k . What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling 456r z (mur52 fjdk +naw rlxx3-ijiw:horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is tj5 klz (fw35-i6rmj+x4runa xi:r2d whe change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 yv a 9f0fbvk.)m/s, is struck by a racket causing it to rebo0a fbk9vy )f.vund 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 gw/)g.ij o jdz8x.hc/placed on a frozen pond. The machine fires a 0.40-kg baseball with /j)xgc/wo hdzi.jg. 8a 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 outsid0tg0ts0.kknf8-ev nd4f w,j;sm tlf;e 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 wt d00gtks vf -0.;fksf;ej,lntm8n4space 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-bksu 0wkkah 4b: x; ydd9j4 /(gp t/fd(je3.ehon a large object at rest. The small object bounces straight back3ej(s juw .k b9yed:4/0gkdktdbxhpah/(4 ; f 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/s to greetm-lnfmj q--;k 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 together - m--;jlmfnkq?

  A car of mass 1000 kg moves to the right ;7y6juk f q)foalong a level, straight road at a speed of 6.0 m/s. It collides directlyo;u jfk)f yq76 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 into the rea/w i5xg-uwto,dhpx/nyg4 .0 vr of a stopped car that has a mass of 1500 kg and they stick ttnxiwgop4w0hd- v g5/xy /,u.ogether. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowedsxa7 8)0 zphig to coast along a level track at a speed7 i)xhpz0a8 sg 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?

  A railroad car, of mass 200 kg, rolls with negligible friepg*(. b bp 9y5e0zfooction 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.(e 9e0*bozpobf .gyp5 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 toke q:6 x.co7*odj;rpk9k72 x cpgp*9a9 izkol the log). With what speed does the log move, with respect ke*ckil.r9 pzoqxpa* 7j okcdk p67;9 o2g9 x:to the shore?

  A 4.0-N force acts for 3.0 s on ant jhim l8:io cras.h-nou:+ 26 object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forceo sc hr h+ :mot8il6ianj-u.:2s to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg5 +8bpkiqylwik 9 .i+ siugy0* object. What is the object's changep qy+gl.i05kiuisw9b y*k+ 8i of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a slc 6fny*u q:qixq 6*cig7 /5 9qr:eldbrick wall and comes to rest in 0.20 s. What is the avera7 xq6 dq/6*y9r:lniqe5uqc*lfis g c:ge force the car exerts on the wall?

  A 2.0-kg softball is pb5 0tpc )aql7nitched to you at 20 m/s. You hit the ball back along the s n05l pc7atqb)ame 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 the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball right bh s).5j9rtkc.c hb -idefore 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 ochdst )9hkcjbri5.- .n the ball by the table top?

  A machine gun, of massn;xk pjz* me15 35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is tjz*; 1pm nx5ekhe average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning buplp82 cfwdm2 e;(6g ukilding in order to knock the door down. This requires a force of 1000 N. If the hose deg2l2ed6k 8 fm u(w;ppclivers 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 horizontal drainpipe at the rate of 120 kg per minute. Itr x 6gbjq8y/j; falls 3.20 m to the ground. Assuming the water doesn't splash up, what avera8jy j xrgq/b6;ge force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 s, whe2f(+3 lajb 4+gfofl dtn fired straight up. What average ll4fdat(j2+ fogf 3b +thrust force does the rocket engine exert?

  Two astronauts, of masses 60)q;, xmr 3v u pztyoq4;v,bvg/ kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter astronaut has moved 123qb,pmx ot/;r 4yv;v )v qg,uz m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/s. It col 1gdg c 7+f.vud,xay,nlides in a perfectly elastic collision with a 6.0-kg object moving to the left at 1.0 m/s. What is th ,1cyug g7,a +vxddn.fe total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x dlwv1l6: 7q0a b wvea0qirection makes a head-on elastic collision with a 0.15 kg07vqb6qwa0vla : wl1 e 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 firio/r4+v(1q h pic bce; ;h0tzqed into 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 thvzq1eqo0i b+ h c(tri/;4hp ;ce velocity of the block right after the collision?

  A proton, of mass m,z*fe.dk/srh 5r xy4jda q 5w-)dhxz;0 at rest, is struck head-on by an alpha-particle (which consists of 2 protons and -d.a5sh)k y4*jxzrrd 0/e5h w;fzx dq2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the 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 with /j ui,k.+bi12kz ev+zny 4kyla stationary ball of mass 100 g. The collision is el+ n+i z.b2k1 vlijek/4 yz,ykuastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/s collig1q286dabvmgr(x , ol des head-on with a 200 g ball sitting at rest. The collision is perfectly em1 2(x dgvolg6,qa 8rblastic.
(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 y 2 wsjy4ajl22speed of 5.0 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 the massy lwsy4a22jj 2es after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collidepml9 ekpk*84 /wtz ;j0booxb+s head-on in a perfectly inelastic 4 mpezpk/o+obwj8x9btk* ;l0 collision with a stationary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strk2)m 2rb b 4(zyxmnua7ikes a parked station wagon, who's mass is 2m. The bumpers lock to z7m)(2rxnmu2y4abk bgether 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 byv*q7/+ t0.dpcw yj wuuries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bulleu0j*c+t7qy ywp/. vdw t/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 collides with a 3000-wr-21ev*kn ,kvw.)uzi3x4isgt9 hbzkg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the spe2kv 3rk9xh*wb s4zn,) uezg1wvit i-.ed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east c f t)ad5 2pdtrv.p+6fu.ou2a gollides 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 directio..ta +t2pr gp)addu5fuofv 26n of motion of the cars after collision?

  Two objects move on a level frictionless surfa4 2zxosjv1ey9bnu36)vcnd +a ce. 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 aft dv 62snvxc1)ea9o+z ynbuj3 4er the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a veloci 72vi( z68 uhnavapmp5ty 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 velocity86mupa(5ipzva7vh2 n of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10 :a5f3i gi8wz7mb-jpg .0-kg mass sits at x = + 21.0 m. Where is the 3g:ip7 5wijz -fb8 mgacenter of mass on the x-axis?

  The center of mass of a two-particle system is at thex3*4udk6w ihjz umh+1 origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What mhudj +wuz6x4*1hk3i 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 kgaw-+q lb lo;ks1gm/a, at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mm1-abs,+ l/w agkqol; ass.

  Three masses, 1.0 kg, 2.0 kg, and 32 h).+um mjehu6ss a7i.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and emia+)uhu7.6 sh smj2(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), an5*vy(h z )yrkb cqo(8gu 7xl;od a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the syster7h5y((ql) g;v*okx z 8coyu bm of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of thex u /qi/ya+55k; jlkiv CM of a whole leg including the foot when the leg is stretched straight out. Assume the qa/ uvk/ky5;x l5 ji+iperson is 1.60 m tall.