What is the SI unit of momg0c*m2) nn( echqz9cfentum?

  When a cannon fires a cann/7 fob/ *p7rosrkbah ,onball, the cannon will recoil backward because the

  A freight car moves along a frictionlessbfm gwqj;i *:af2u5m6 level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumm26j;a f :q5ibw*u mgfped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while sl.2stw hi vd*08a1ocycedding on frictionless ice. What happens t*y8siw0dvta c .h1c o2o the velocity of the sled?

  A rubber ball and a ls/k54m g1 uzs jtwje0)ump of 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. Wh gj)mew0s/u4tz5 jks 1ich objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momej 5erc7gbl) ygmk6/7br; v7 qj-ub bg0ntum p. How would you represent its kinetic 65 b0m-yqgb/)cj7lbgr;7 r7 egbkjv u energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you g i4;,mbpg;q)+il.wn:b z xmrr ave it in the previous pitch, the magnitude of its momentum i w,l:m;b4rmg) nqi+ xprbi.; zs

State Newton's second)vv;iuzuftv;:k+z/1q bo uv)i -ezv3 law in terms of momentum.

State the law of conservbg3- ,4y5n6tx)pey;vmcwi : fqpeo g2ation of momentum.

  The area under the curve on a Force vera t y(4sv:un (ojx;7ttsus time (F vs. t) graph represents

  Which of the following is an accur39 p eh7o)kpv-c2tpt yate statement?

  A small car meshes with a large truck in a head-on collision. Whichj a. y967zq2ba w.wksz(kbm1f of the following statements concerning tkz 6b am b(7fawwq 91.szkyj2.he magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from tsobylst tnw 1fe g62b2l:3.f.g8ej+ bhe same height, and rebound off the floor. The red ball rebounds to a higher positio8bls wo.sb ntfb +23el2e jt: .1gg6fyn. Which ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speexnhoe*3uddba3j f1 vgi;o/b 5kf(+0i gq;6 mud 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 b5fg0ifu/adox b ug qhnv k 3m63;d*+(;ejo1islowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each other. Lin/3 + qw8d0vvpcu-yqnq (mq5y iear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-q; *oiwc 2kqp 4hq+(zekq z (*wq+2pic4e;hq okg object moving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s o m --fa(in2o 3q)qqzjs0wptv4m:7ivtackles head-on an 80-kg halfback runn)m0wo 4qzto-a3vm qiip - 2qs7 vj(nf:ing
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is conserved, thenh.xt1:mv0 yg n- ;thel which of the following statements is trygx;ht hv-1.0 l :emtnue about kinetic energy?

  When is kinetic energy conse;m,h s,r njpm,rved?

  In a game of pool, the white cue ball hits the #5 balccap 3inxy -ek.*v 6,rl and stops, while the #5 ball moves away with the samknca., 3c*riey6-pv x e velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of::6 a j ud9.5wiclovw4i o6vlh 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatelahvw6v.i5:9u6:j odocllw i 4y,

  A golf ball traveling 3.0 m/s to the right cold-l3 mckv gl ,2m/p,4sfn ge3llides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, 2ln/ vg,c4mmp3fellkds 3g ,-the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head zk 1w.1wsxw)s1t-zok-on elastically with an identical bxwkkwz- 11t)sz. 1swoall at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object movvy f f8 qj;8 n*smvb;ar.ks+.qing with 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. W+ya;sk.frq8b;*.vsnf m 8vqjhat is the speed of the light object after the collision?

  A very light object moving with sp(j iz a+ :e.n*w blt58scglu4ieed v collides head-on with a very heavy object at rest, in a frictionless env (4uj:c8w+etna sigi5*.lb lzironment. 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 headx0-qty:6ihfn4 bsa .fm .fnv: -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 after the. yiv 0f64 ahbm fnfnqxs.:-:t collision?

  A very heavy object moving with velocity v collides head-on with a very li7;.sy4bej ybtgofe(z,g4f ; zght object moving with velocity -v. The collision is elastic, aj;.4 b zy4o,t7; zs bygfe(gfend 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 momentumz-ho eqd9vfn9 9b8l;f is conserved, then which of the following statenh-9f 8 9e 9dzvofbq;lments is true about kinetic energy?

  Two objects collide andm6 yrxe64 tt,n stick together. Kinetic energy

  A 3.0-kg object moves to the ri ulx6- g;9qrgrght at 4.0 m/s. It collides in a perfectly inelastic colg ; 6-qxlrurg9lision 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 +15 niy:sltf fobject experiences the larger magnit5 s+ t1inyf:flude of momentum change?

  In a game of pool, the whzs4g 5ejucgb dq c-+t;u f:f35ite 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 ma*xgp 4+ q0ul/botto(ke2dyl 9 sses, M and m. Which of the following statements is fals+dgl4o (90e2btxkpou t*qy/le?

  Which of the following is a false statement?stdm, a7 6 gd,uh -rumlm azpm3t-( 6weh2a-k/

  Tightrope walkers walk with a long flexible rod in order toe 5hq0e (ezk.km vlvqp:0-. bdw8l4qq 0d/wsb

  A plane, flying horizontally, releases a bomb, 5d;w/ zmnsdk)4 :viff which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bombs; )4ndk5zm i/f: dvfw fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision w bt/93 e+.x xq4tpfzbuas completely inelastic and both cars quickly came to rest during the collision. What is tr9 xz4u+ .xettf3qb /pbue about the velocity of this system's center of mass?

State Newton's second law for a system of,w6q1mki7t jjno7d )c particles.

  What is the momentum of a 2000-kg truck trk;; gnte)l+nv aveling at 35 m/s?

  A 1200-kg ferryboat -rgbov- izl:6 kwlv8wt1s 4l0 is moving south at 20 m/s. What is the magnitude of its momentu 1 k84 0blwz-gs vlwv-lrt6:oim?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mome tmd byf77i7u:ntum when it strikes the groy 7dufi7 bt:7mund is

  Two identical 1500-kg carswf.c. gf/txqkjh3b*8- ;/k nsx m e+vk are moving perpendicular to each other. One moves with a speed of 25 gfkkwbftcv 8e3;./jxmh.xn * /-qk+ s m/s due 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, travelex-3y* w(srpn0 )2vdbjkr6 ue re,xo5 ing horizontally at 30 m/s, strikes a wall and rejkebes(vrupd 5oy xn r3w)-e60,x *2rbounds 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 o cxmb(ustenh0o wj iy8ox5c (.; 7v 67ma4-fxm/s, is struck by a racket causing it to rebound in the opposite direction at a speed of emfo(nx7m6y80 ;c.h57wv4xjscoa-(ti bo ux 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding t tf ythp88l/jelk *0p0he 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? (Assume negligible p t/tfl08jy0*p lk8he friction.)

  A 70-kg astronaut is space-walking 10 pxoly1(i faaoo 4e db294cgoutside 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 spolgi 29 cef4y0padx(1a1 o 4obeed 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 al*lhjnp4yg+ dv 3s09r1w4 oospproaches head-on a large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the mag l+n43ojg*l1s 0hwd vsyo49pr nitude 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),0 p1.;tm jv2 f6gqdv1umd;wayh eb ;u+ who is standing still, hu0;f11dm;juv2y .mtp;6+ edbq vgw a with open arms. As you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg m6t g*0pmes;0*9dh un+qkyv pn:1xu iyoves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcyclsndyitxuny + em kq90*gv0pp:;h1*6u e of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rea5 :fm0 a- xtmld5lsq 79kub(vpr of a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the collisionq ams- :k59lvb(0x7mdp tlfu5?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level trackkiwp-)w10kev 6td 6n4cau u1 u 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 suv dua- 0ci6 )4kw1 enpk1wtu6peed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible friction on a horizj; xvh9rveb(g2.li h7 ontal track with a speed of 10 m/s. A 70-kg stubl( v7g vehrx2.9hi; jnt 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-n vq59,t0t7zt ym3 iw-txqy/hkg log at the rate of 0.80 m/s (with respect to the log). With what speed does the log move, with respect to thq7tt 0 iyy-,z/93thx mtn5 wqve shore?

  A 4.0-N force acts for 3.0 s on ar9s pnjx 9i )/a4o ocf;trul64n object. The force suddenly increases to 15 N and acts for one more second. 6 )ojus94 /il at;frp9or4cxnWhat impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts n8x+-0jshdvhfor 2.0 s on a 6.0-kg object. What is the object's change of velociths- nj0+8hv xdy?

  A 2000-kg car, traveling to the right at 30 m/s, coll4p7 ./bef caglides with a brick wall and comes to rest in 0.20 s. .a7cfblge/4p 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 the q 5h( rh0brvg9 v4zj,gball 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 the ,j rg 94rqh0vbv(h g5zbat exerted?

  A 0.10-kg ball is dropped onto a table top. Td.r4(e-pon4oj:scx fipag2) he speeds 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 betwprep(a-n x4c sfd .oo:4gi)2j een 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 18/t ycvcvh,cqr2s v*1 weke+-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per m cer81cey /c2tv+wk v hsqv*1,inute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in ord.syx 1av g;a*fbik(dq:v 12 rber 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 th.:kb*1af1v d2b (qrx ;gyivase stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate6v1 1 sb5xpzzm.lpzw3 of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average fvb6m z1zls1.xzw3p5p orce does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 f :4w 7ryda.a tvkxd4+m/s after 3.0 s, when fired st.:w a x4ryfk4d+ 7vatdraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are ieaab1c:q gu 1 ku3co w30sj.2qnitially at rest in outer space. They push each other apart. What is their separation aftereq .:123w 3 aoqc1us0guckabj the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to o6j0 zxjs /re-the right with a speed of 2.0 m/s. It collides in a perfect-/j xjr60szeo 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 in the +x dir(n z9:e 2;n zs+f)mv9 (9vrydcxeccmj ection makes a head-on elastic collision with a 0em ( ec znc x9s)9cyv(2f+;zj9vndrm: .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/ 87n 4v8dfug db/1lflks is fired 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 the velocity of4b788l uvl fnd/kg1df the block right after the collision?

  A proton, of mass m, at6 gac1qj: c+yn rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision i a+ccqn16gj:y s 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 coly0+0lyu 6 e 9lifc.a.hiistbq-tm7p/lides head-on with a stationary ball of mass 100 g. The collision is elas69tmyy. qt. 0-a+0ll sf/iceuiibhp7tic. 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/7 nr2)c5 -gw(r slilxd tj7ah(s collides head-on with a 200 g ball sitting a-rx dhljc)rwi(g5al72n(t s7 t 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 wunm0:fr-kuv2 gq 3+smn6v cu (ith a speed 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 thefrq k m2uu3s-vum cnv +(g0:n6 masses after the collision?

  A 2.0-kg mass moving to the east at a speed of /6c ys7x5w ik6v9k vku4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy iv9 7w6/5ivu kk ks6yxcs lost during this collision?

  A car of mass m, travelingbjr+ 7z1m4bk +uu t-na:fv 5kq with a velocity v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. W4 z1qrfman-tk j+ u5 v:bb7+ukhat fraction of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itse oxqlrw +nq- 0sv4)x-blf in a 2.4-kg block of wood a rest directly above it. As a result, thr4l qbv) 0+q-sx -oxwne bullet/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 colliv 7w cb2c1u0ardes with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. cu 72brav10 cw(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 1h7h2c m 0: ky5fuzyzicar 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 ocfi5z: 1yuh kmyzh072f the cars after collision?

  Two objects move on a level frictionless surface. Object A moves easu u en.7 vffe d1ijiuql64n 0,8bqn8q3t with a momentum of 24 kb0 38 ud,i8qlie uq4ejfnu 7q. n16fnvgm/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 the collision?

  A small bomb, of mass 10 kg, is moving tozzx7ls-. k-(w4e m xwwward 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-wezsxkzw4(m .-7xlw.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 friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kt+n.hjytlz-rs)exwf6,ep5( soqp-) 4:ow w w g mass sits at x = + 21.0 m. Where is the cent-:wr+ssn) 4w,6et. -oy zl 5wejwxpoh(f)qpter of mass on the x-axis?

  The center of mass of af18g f5efx;k a two-particle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. f1;ak5e f xf8gWhat is the location of the second mass of 3.0 kg?

  Three masses are positioned as follk2guplqdvn6/q n qv v,1)p /+wows: 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 centerk lvv1+w//qdp)p,nnqqvu2 6 g of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), ( xj5 jatwjm1iw12m :4j1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What i: 1 m5wtj41ij2wjxmja s 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 it4lpi52k i 6u n p8n*cwgstoff k766;xs positioned at (12, 0). What are the coordinates of a 4.0-kg mass which *uic 6fp n5wtf7 8tk2kx6ipsg6n;4l owill 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 d.4zmff5ta9 9nau o3d whole leg including the foot when thea3d .mud95o4 ffntza9 leg is stretched straight out. Assume the person is 1.60 m tall.