What is the SI unit of trir6u. 4 ifp/momentum?

  When a cannon fires a cannonball, the cannon will recoil backwarzn3ktqn3z y88es/j7 pd because the

  A freight car moves along a frictionless level railroad track at constant sp 4vpe5jir r e:qvgb2fqb*+7 ng*s(x8deed. The car is open on top. A large load of coal is suddenly dumped into the car. What hap(84g7g qd*v2: bi f+x* e5 rpbervjsqnpens to the velocity of the car?

  A child falls sideways off a sled while sledding on frictionless ice. What kzszv 3v vn.) */bdob.happens to the velocity o. 3d/zbvz.sbkv*) v nof the sled?

  A rubber ball and a lump of putty have equal massq h0ejtvo 8-6s. They are thrown with equal speed against6sj vto 8-qe0h 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 greater momentum change?

  A sailboat of mass m c m.,kt fl-8fvis moving with a momentum p. How would you represent its ki ,.ckff lt-vm8netic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previo1sie5cpvdm3 0g;( ;jw s1 lmryus pitc5dg i e(c vm1 jlpm1;rs3ys;w0h, the magnitude of its momentum is

State Newton's second law in terms of momentyqezd l 3i yqw7zs;7)(su-ln7 um.

State the law of conservation of momentu jc9w 1pcyymz 4dalq;bq) 6-5u6id;g sm.

  The area under the curve on a Force versuoh.,h7 d0d eczy,w;cw s time (F vs. t) graph represents

  Which of the following is an a lf xw9t*pu5tt .gn64sccurate statement?

  A small car meshes with a large truck in a head-on collision. Which of thes3toj ,6r 8ndn following statements concerning the magnitude of then drjo3tn8,s6 average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from th)qx,1: om5v9hjz) cvktd lxz4e same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of imd ,)jx1cok:zz9v lmqvxt )h 45pulse during its collision with the floor?

  A Ping-Pong ball moving east a-og. ) nxpvrtn*z e;9n1xj* hkt a speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back to the west, and the bowling ba;*en1nn)- jv k.thxgxpr 9*zoll 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 moo z(a6pl(2 a4ekqmuv.mentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on wiv(1one :vxi g.th a 6.0-kg object moving to the left at 2.0 m/s. Which statem1xg:e(iv. v onent is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-fwfw gcy/gl(.6b: jz x;1e zi)on an 80-kg halfback/z g6ef. :1ciwl(xjgb zwf);y running
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 the c,9lj 4ol)z 2dhj vy/dfollowing statements is true aboc2vjd h)dj4,yl 9/zl out kinetic energy?

  When is kinetic ener9 k8jnp9l: sxl wkf g(8:2iqlhgy conserved?

  In a game of pool, the white cue ball hits the #5 bapn)u: 4rsr6a cll and stops, while the #5 ball moves away withr6cpunasr4): 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 r9s.xv+bpx v1t9s h:p/s collides with a heavy exercis b.vpsv19x+xtsrh: 9pe ball at rest, the beach ball's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision wita6-mq o sfr i3gl(-4joh a stationary bowling ball in a friction-free enoi(-4 rsql-g 6 ajf3omvironment. 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 cofdmna1,m0 xr 6llides head-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collision0af1m,6mrxn d ?

  A very heavy object moving with speed v coq gt1lx 7kn1n2llides head-on with a very light object at rest. The collision is elastic, and the12tlnx7q1k gnre 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 teuq, xswo xz3v,g6v y;gh3+;with a very heavy object at rest, in a fr,uw zxt oy+63xgvvg3;q,eh ;sictionless 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 head-on with qafg2lkov)r2v x d3qi(3y(8ua yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity lqo )fu2(a (8vdv gk23qyr3xi of the yellow ball after the collision?

  A very heavy object moving dl;jguz 0f1rw7hax-z.x- o)qwith velocity v collides 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 speed of the light objex- ;r0wz)-z.hd ago fj l17qxuct after the collision?

  In an inelastic collision, if the momentum is conserved, then wotop l px6o1-jq 6eg3k+,kzrov2/ yi,hich of the followvpoqp/1 ,oy jeor6lgtkoxzi3+ ,6-k2 ing statements is true about kinetic energy?

  Two objects collide and stick together. Kinetic ez40x) cbekm c.t.kn9e nergy

  A 3.0-kg object move. fl2t14u)xek(v1u)pod csbgs to the right at 4.0 m/s. It collides in a perfectly inelastic c1ks o.p ft)d)ue4cu lx 21(bgvollision 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 witg-yb9j.o1gzv h a large object and sticks. Which object experiences thvg9jg1b - yo.ze larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball 86q4 gpogmx alt(.(ma 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 folppg 1ykx2l)2d ;rva9 nlowing statements is false? lkxygn9pd2rpv;a12 )

  Which of the following is a fx,/jopygjo( nry 3/3p ybg (:ralse statement?

  Tightrope walkers walk with a long flexbzeku x53*g2g+qb vw0 ible rod in order to

  A plane, flying horizontally, relea sx hkllg t du8g*9w/qxg)(756q2fbc 0o5h qtfses a bomb, which explodes before hitting the ground. Neglbqs0f go*8 (gc9gt h6 )hx2t5/fqwl7kdu5qxlecting 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.o95k sqz..i pee rd65+qy6 wsm The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about t q6.ep +wiske5o5.6z rmydqs9he velocity of this system's center of mass?

State Newton's second law for a suu8hla2+5dp 11m: zx7l ksfuaystem of particles.

  What is the momentum of a 200r zvr8yy4dade0 fo0hv i4t +9)xwdg-+0-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s1ooj:0c keejj65iez 947 - xkwewpb.q. What is the magnitude of its momen4e k7epz0j6q- b wjx59 eeci1j:kwo.otum?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its mo;az.-mtkyww ; cjn37 vmentum when it strikes th a;3jtw mv n;c.k-yz7we ground is

  Two identical 1500-kg cars are moving perpendicular to each other.eff;3.ggx mm8 v6)hlfurx 6 c: One moves with a speed of 25 m/s due north and the othermgh ; .rcxgm ef 86vf:x3lf6)u moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a wallto p t6d-tl lhd22jzvq9f,,z) and rebounds at 24 m/s. What is the change in the momenfztjqvthd p,t6llz2d- 9 )o ,2tum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed ba1tmkpav)6s.ijb qi-2u- y; of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is t)1p6sy;j m2uk atvb-aiiq -.bhe change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed onx8h ey,.l8u0bdl u:ju a frozen pond. The machine fires a 0.40-kg baseball with a speelu u,ehdbjxuy l08:.8d 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 spacektnk 6qs/80r*yveb4rh jk gte(z8. 1 w 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(rw .nkjgy4s*8tr0 t kbq6zv h/ke 18e 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/o kt1f by7(9ki;iv qv+s approaches 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 magnitude of the large object's v1 ko( vb7yif9ti+q ;kmomentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greetm l2r3edrt/ jqr +0xb n(ft 5256 4ylthz:uxix your friend (40-kg mass), who is standing still, with open arms. +4 62t3y d0fe / 2xjumr5t (:hxbqllntri5xrz 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, straight ro 7/,/x-mz uthmqw+ p7w qpeom:ad at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after tme7w /pm m,/hpw:+ qxu7ozq-t he collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of 3d vd;k n0uvjoiod9z*2 +vkrywh 0,m4 a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after;3 kdk0ui0vd y ho*rv 9jv4z,mow2n+ d the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast alonn*+t of mc,*2a2bzg vag 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 cars after cv2cgab*znaf m2t +o ,*oupling?

  A railroad car, of mass 200 kg, rolls with negligible frictio(o/b0(uv e9 hpc.hb8if c7csnn on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distanc n bueb c(vi c90h.pfo7c8/s(he 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 the rate of 0 wxqjdrqo;o7:c4yqev:n58 q/ .80 m/s (with respect to the log). With what sqoyowrn:x8 ;/dqjeq:57 vqc4peed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The forcc8v* 5 jdjdydkn:-m : t 0v.mnauc)fm9e suddenly increases to 15 N and acts for one more second. What impulse was jcdnm- :m:05d . am)kjutv8 y* 9vdfcnimparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on2ifbb7.qv gm6h, g*dz a 6.0-kg object. What is the object's changvqzfmhd, *g7.b6g ib2 e of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brick wall ane*(0pudv )u jbu drh37d h3vdru)e70 pdj u(bu*comes to rest in 0.20 s. 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 ball back along tev seq d6(8q4)tnoce(he 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 bat exert8tn sqd6) o(v(e cqee4ed?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball: w/piist .5 fn,nrwo8-qtm.o right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, rqfi8nrn ..to w-tso/w5i:, p mespectively. 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, with a muzzle/r+a hs8c1vx (yuyd9t velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun (vydx1 hat9ysrc8/u+ mount?

  A fire hose is turned on the door of a burning building in order tzz/cq-7of5kio e07m9 5whi9xdw fy 2to 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 the stream needed, assumini27z95/iyf70w9ofhw- qo c dkx5 zet mg the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of oeke6ji8rh/ gp+h : ,ykd by/2 n;i6pk120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't spln,re/hk gjb6 8d:iiy2ky;p+k6eoh / p ash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, axm y 9muoo62-il71rbbchieves a velocity of 40 m/s after 3.0 s, when fired straighto 1uml6x9ib m7-oybr 2 up. What average thrust force does the rocket engine exert?

  Two astronauts, of mar 820ntz tmwj9sses 60 kg and 80 kg, are initially at rest in outer space. They push each other apt2z 0rt8mw9n jart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 2.0 m/si/e gf *u+aac.. It collides in a perfectly elastic collision with a 6.0-kg obje* e .iugc+faa/ct 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 direction maka-sa 3ujofu1yl0ss sq zk+vvyh)/ 65/ es a head-on elastic collision with a 0.15 kg object initiall -)s/0 5su/+suyfk1 o36v las yazhvqjy at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 3jbxetn(c(5 5 kyyjp/400 m/s 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 velokp yj(/t(j5 yxce45bn city of the block right after the collision?

  A proton, of mass m, atbjcf1v1s, 0 duo1n/lc rest, is struck head-on by an alpha-particle (which consists o ,cojv1/1l 10undfbcs f 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 neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a swz3 qzs2gf u1nbg) j+*tationary ball of mass 100 g. The collision is elastic. What is theq13fg2s j)b +wuzn* gz speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed ofz , u1+bu nfqiz)0mh+dq*7jv z 3.70 m/s collides hez)u+ qf qij0,nzbum*zh7 1d+vad-on with a 200 g 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 vytq s;;i2jb:unwp i8n9 i0g4 speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision y49 q ;;g8snpv iji i0:wunbt2is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides h 6qc2x12 k)q:kc2j6rd-a+ja fva qxwwead-on in a perfectly inelastic collision with a stationary 2.0-kg mass. xd2- 21:66kaarxfw jw k )qccvaq2qj+ How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked statio n f59 y)d)38oagseatmn wagon, who's m) g3so5 enfaya8d 9m)tass is 2m. The bumpers lock together 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/a.c32s9ih5r7fk fpg r7*7i til kfl:os in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As fclii27f rfk5*7i :a. sk7r p3ohg9lta 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 at 90.0 km/h east collides with a 301 ujgc*4/hjgxpljz pr5ucu t6 *p)7; b3zv o+p00-kg car traveling at 60.0 km/h south. The two cars s c3p*v* jpobjg+p ;7xuguz5uc l 4)6hjpz/t1rtick together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car travelin4( 1i)u5qc9sao7 juw rpp jh:.fwc*c yg at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick togetheiahp7 w swj u1c.f9*5pocuycq):rj 4(r after the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. ptyt ,n93rm-iv w. fl7gi4,ndi+txw1;qkoa:Object A moves east with a momentum of 24 kgm/s. Object B moves na, dy4-m+rwixft7.w giqo; n:til,t 3vp1k9 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 toward the Nh a rj ;-2mwpo/hzi 0,67asm)bmyh+xnorth with a velocity of 4.0 m/s. It explodes into threeb2+ha7mr p)as06mhom izjw /h xny-,; 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 friction.)

  A 4.00-kg mass sits at the origin, and a 10.0-kg mass sits at x = + 21.0 m iq(n54 e v**wbzai-bd. Where is the center of mass on the -( wq*i5* znibdab e4vx-axis?

  The center of mass of a two-particle system is at the origin.nt+aj h5/.k2xq6x omb One particle is located at (3.0 m, 0) anq2 b xktj./+nx65a omhd has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are pos-n k3o9vtcyx,vgh *)+ qt -/ms sv+jvaitioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Deterna3v *jqst c9o-s h tg,yvmkvx++/-v)mine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0,z9oo; byie6 w80 q9wyl 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. q0o9w8byz9 wyo i;le 6What 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 ij,cped ;ujx,9fqj 0z5s positioned at (12, 0). What e9 c qdxjp,j;uz5j0f,are 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 whole leg includi6epen*m 8x)):in59 rlu6gn xcmaec7l ng the foot when tpgcmln i: ml*ruxx8 9a c n)n)6ee765ehe leg is stretched straight out. Assume the person is 1.60 m tall.