What is the SI unit of mome3g )mcvo4cq,8gz hgp/ ntum?

  When a cannon fires a canno sszk3-5o3loynball, the cannon will recoil backward because the

  A freight car moves along a frict+j r/fc c)ud3-j fes-yionless level railroad track at constant speed. The car is open on to +ry3-) jce/u-c sfjfdp. 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 friction *c;c v 3 fesj+g5vv6zjceu-x.less ice. What happens tuce+zejfj *5cv3g6xs. - v ;vco the velocity of the sled?

  A rubber ball and a lump of putty have egxi61;bea5 ikh 0*rd c(wv,q qqual mass. They are thrown with equal speed against a wall. Theiqb0 d (;i *qkwr5 e61gxavc,h ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m iscju*65pm6 hpge/ bw(5r 8cbmg moving with a momentum p. How would you represent its kinetic8wu b / m6jgpprc(b65h*e5g mc energy in terms of these two quantities?

  If you pitch a baseball with 7-zop;iz-q ew twice the kinetic energy you gave it in the previous pitch, the magnitude of its7- oie zp;zqw- momentum is

State Newton's second law in ternk.4*8y wa8pj6,hljk x-p5fz udg6q sms of momentum.

State the law of conservation of momentug-phl538aibdtr8x *-mb bf::c f z+jrm.

  The area under the curve on a Force versus time (b;itwlj 3ks;/vyohg/c)3d5rdx. +drF vs. t) graph represents

  Which of the following is a9(xl p4n kxvy5n accurate statement?

  A small car meshes with a large truck in a head-on collision. Whm orwr*c;t cbs:sm8i7pzip4 t;r +f)ue 2t,z2ich of the following statements concerning the magnitude of the avpsrmio:wzz ;ef2+t i;cpt2s8 ct7) r*, 4urmberage collision force is correct?

  Two equal mass balls (one ru rq ( 3isnpw0vcr-a2;ed and the other blue) are dropped from the same height, and cusav0rpw2 (irq 3 -;nrebound 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 east at ah :d7pn.z1 cjh),6v njxe b1pl speed of 4 m/s, collides with a stationary bowling ball.n1cp) ,h67j zljev x:dn h1pb. The 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( x1c+ euw(wke off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on withp0:k,01 mny 5 kzvhwtp a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correct?y0vpk w0z1tp k:h5n m,

  A 100-kg football linebacker movibr -h4l;p arwo(.h8hh ng at 2.0 m/s tackles head-on an 80-kg halfbacklhb.8 or-rh h(w h;a4p running
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is cons8y,c* l)tw 0mcj4h0b/v nellferved, then which of the following statemewfnh,j4l8/ bmlc)c ylv t*e00 nts is true about kinetic energy?

  When is kinetic energy xq:f,akeb r5 jv9c/-a conserved?

  In a game of pool, the white cue ball hits the #5 ball and stops, whieraqkjfr)( 9 fb 4l-2gehl17ale the #5 ba21b rk)f(q9 - alfeejr lh74gall moves away with the same velocity 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- d.+fpnbo b-c with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximat bf.-+p-b cdonely,

  A golf ball traveling 3.0 m/s to the right collides in a heade/z8j3 )k,5mquaaxgj xwc z 47-on collision with a stationary bowling bal 8/x43cma ,7a5gzjxqk j)ezw ul in a friction-free environment. 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 wfpid.t.pqjo hh.-+yno3 n: .head-on elastically with an identical ball at rest. What is the speed of the initial.-nh+: io.hoptfj n.y.pqd w3ly stopped ball after the collision?

  A very heavy object moving with speed v collides oaewgpr+* nopb(2r 52 head-on with a very light object at rest. The collisr5 e+opr 2*wbpo2ag(nion 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 i8gh +rqoa: m(lv)x2n v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectih8(2gl: omq +xar)nv ly 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 baulnr dre2.5 xkd7 *7llll of equal mass moving with a velocity of -2.0 mddxn77rl l25u.l*rek /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 ic bz jmr*5v-g:1p.b2vw0o jfvery light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the lc-5v1 zbp:0.b*mwg rij j fo2vight object after the collision?

  In an inelastic collision, if the momentp1*hd,;h kagfum is conserved, then which of the following statements is tp;dh, f g*hka1rue about kinetic energy?

  Two objects collide a 8c((p. aztpdmnd stick together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pxblh )u485a5/+ ftpq +pzqjvderfectly inelastic collij uz+v5a 8xqpp)4/b+l f5hqdtsion 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 o a+z,f t(pm.v b- jbw(/)vzfl )ghqse0bject experiences the larger magnitude obz,0(+hp m-a./bv ztfv f(wjl)g sq )ef momentum change?

  In a game of pool, the whc1fqxb sj70i.w6js2a t ; nzw nad-b76ite 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. 9go7gy p9ghf)Which of the following statements is fals)f yg9ogh9pg7e?

  Which of the followinyuqb0lcid5lpe/ -,.g4cbu 2 r g is a false statement?

  Tightrope walkers walk with a long flexmqmu* ae2z z;+ible rod in order to

  A plane, flying horizontally, releases a bomb, o r1l/8ugv fv9d -dj2sjxtj- 1which explodes before hitting the ground. Neglecting air resistance, the centerdf vvs--1j21u/txd 8rg9 jl oj of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. Tha+2 g8 :hqb4h1ptykq js+9n efe collision was completely inelastic and both cars quickly ctpq j:8qy n af g4bks92+h1+heame to rest during the collision. What is true about the velocity of this system's center of mass?

State Newton's second law for a c6 45r r6 yrijymo 7-c3(uw *lf(cqyawsystem of particles.

  What is the momentum of a 2000-kg truck travext:xwbz6tw -i--h1ve ling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnit1 j9j ux*wdik.ude of its momentu9w. j u*jx1dikm?

  A ball of mass 0.10 kg is dropped from a height of 12(6r)o cu,coo *pvx- hao9bkx, m. Its momentum when it strikes the grou vorho (*6o x)pka9 uo-b,xc,cnd is

  Two identical 1500-kg cars are moving perpendicular toq. kl31 u2zak ga1bpk1 each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. Whkagb1 a3k.k21lp1zqu at is the total momentum of the system?

  A handball of mass 0.10 kg, traveling hoylfp t6pnbs3 a*ci7 xm- ps55:rizontally at 30 m/s, strikes a wall and rebounds *f 76spipbpsca:nymlx-3 5t5at 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 m/s, is str*jz) /*ju5x m.zvpa yquck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is th*zmp/yxjq jz)au.5v* e change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed onxd8buhf 5nttmm6:c e; ;j9(kx a frozen pond. The machine fires a 0.40-kg basebalhkj m;dn ;t6:tu8fcx e 5bm(9xl with 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 spal jb0kh.rlpz96)s x/x2 h u6mlce-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 hammer at a speed of 14 m/s away from the capsule. At what speed does the astronaut move toward the c0r hu9 )s. mlzx26hlx/jlpk6 bapsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object at ret:ni , u) pj:odc;p-j llj:4cist. The small object bounpu-l:jl4 pco d:)iti:c, j ;jnces 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 )h6 *;ceil.jfdd jqy+ m/s to greet your friend (40-kg mass), who is sta;jj d fe+ d.i*yq)chl6nding still, 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 moves to the right along a level, strt1km6 u kba*ab/.v7 sj7h pzsf(j/f2daight road at a speed o./tbum sd1a s bf(27*z6kvkf / 7hjjapf 6.0 m/s. It collides directly 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 rear of a stopped car that wtg:.)onc1 pj has a mass of 1500 kg and they stick together. What is the speed of the cars after the collis: nc)ojt.g1 wpion?

  A railroad freight car, mass 15,000 kg, izw8r43eub1cyck0ov;4( v m tws 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 brakes released. What is the speed of the two okt3c(8e4rz; cw4v uwy m 1b0vcars after coupling?

  A railroad car, of mass 200 kg, rolx/c ;e2ioy;k mls 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 landx 2eyoi ;kc;/ms in the car. 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 (wiy l0axd 54eh hnjcsvh h-;1 2iaw+wo68th respect to the log). With what speed does the log move, with respect eo6;i2 0hlhx-5w 4say1h+ ahnjdwcv8 to the shore?

  A 4.0-N force acts for 3*nt35cyr uvz3;sdk y 6.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to the objer*nc 6 ;5zvy3utyk3 dsct?

  A constant 9.0-N net force acts for 2.0 s on ajj3, kl :0uycp 6.0-kg object. What is the objectpk:y 3j j0u,lc's change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall andpjr qu9h ji9v3h5o r+qw/s0 s/ comes to rest in 0.20 s. Wha9j9q i /0 v 5sp/3rhh+oqjsrwut is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to+b4ei i8 -jspv 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 forbp8 -vi sij4e+ 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 oa; hwp2m6p)ss:t ; ww *ltdxd-f the ball right before and right after hitting the table top are 5.0 m/s and-2 psd);*w dtwx awl:ms;pt 6h 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 r k4zo:juhth: e0+ cg,35.0 kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds pezu o:g4trj+ :,h kc0her minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to kn//tvbc: -iirpock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of t-/c /v:tbir pihe stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at ud/8t iij50gh jiy2f8 the rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the grouii8g 580hu/fjdt j2yi nd?

  A toy rocket, of mass 0.12 kg, achieves3 skjzu3 x;tw /jim7-w x+:das a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force ds;k-it: w/ a msdjw37jux+zx3oes the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer space. we hx,e+w;5aljo0 hg/ They push each other apart. What is their separation after the lighter astronaut has moved 12 aejol+;0hg,w 5 wex/hm?

  A 3.0-kg object move)ufwex8fr f4- s to the right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg objectf4wr8f e-)ufx moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with al bh6sklssxh //(hoh:mjn/s4s- dw 0, velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object x 0l-ms, dbh/l n s 6(ko/shhj/s4w:shinitially 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 in/2 efgos(e)0fhkt c8 oto 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. Wh8cosh2e)(k o0ef /fg tat is the velocity of the block right after the collision?

  A proton, of mass m, ag ub waamnna +4v)11+zt rest, is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision iwga+ +bmu)41nvaazn1 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 collides head-on with i- g6me1v w0jfa stationary ball of mass 100 g. The collision is elastic1 j ew-6mg0ivf. 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 collide 10gr bi.1snzqs head-on with a 200 g.bz n g0rsq1i1 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 collcm: x.j/yiv5ixr3ja ,ides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what im yvi:ix c.5x,/j3rja s the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed oe:pw) /awx uz.f 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg w/.:u px )ewzamass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strij *rr,/2h 2ppstnsy+0 hz rh,dkes 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 energy is loss, rr2hphh *0y+z,jnt d2s p/rt in this collision?

A 15-g bullet traveling 213 m/s in a vertical d. ht, 8o1z9o .ehhomsq1:3iqb r9knrgirection buries itself in a 2.4-kg block of wood a rest directly 1zkqte9:g h hm, 1r.oio8bor q3h.n9sabove it. As a result, the 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 r tkyzrhzd/ma;7 xmng 4u9* /8at 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. t4 nr/dmh8u;yzk m7/*9graxz7-1.) 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 cay lqqm,h(ya(ej q;*1 rr 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 the cars after collision, a1qrq(*hq ymy; jle(?

  Two objects move on a1:.sb meya7nn k:or 2p 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 perfectly inelastic collision. What is the magnitude of their combined mome s.rn7n bae2 :km:1yopntum after the collision?

  A small bomb, of mass 10 kg, is moving toward t(o. b.pck (g, pm djkysm5g1n.he 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 ipn o( g5,bmp g.dcs(1jky..kms the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = n g(m6/uvt j9z+ 21.0 m. Where is the center of mass on the x-axis?/6( ngj 9mzvut

  The center of mass of a two-partikn,j sca)r8 6ucle system is at the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the second )k86 ucrn,saj mass of 3.0 kg?

  Three masses are positionedv ).fbxf s7 h5ot6qhj)a* ilv* as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg.*jv5iqx7foh f h*a)s 6tlv)b at (2.0, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are locatfjgl+/g mjeb81 hsw9, ed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), jh8e 9gm 1jbl/wfg,+s 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 ma gq)la1hbqax ,))v+tg ss 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 g))q a +,vb1al)htq xgsystem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole )8rs0edfmoxhz.p 8oyk d3zl)*l to9 6leg including the foot when the leg is stretched straight o rx 8.h9opz 8 ts)odl0m3l k6e*)dyozfut. Assume the person is 1.60 m tall.