What is the SI unit of momentum250 +cw ohq olt+lfif2?

  When a cannon fires a cannonball, then47v uqb(cilujfo85 2h ua; lrzf 6i+. cannon will recoil backward because the

  A freight car moves along a frictionless level railroad track at : gm9 upp mp6vzk2jvnmfk;m -,,+ 5adbconstant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens to the velocity of the cara vd, m9,p; njmpmuv 6:k z5+k2pm-bgf?

  A child falls sideways off a sled while sledding on frictionless icb8xolk)h lj-- e. What happens to thekl-j 8xo-hb )l velocity of the sled?

  A rubber ball and a lump of p-o v2l , ,y3iddqdwhgv57vqx)utty have equal mass. They are thrown with equal speed against a,wvod yd ql2 x-q7dvh),v53i g 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 is moving with a momentum p. How would you represent ivil rjh--h 1*tts kinetic energy in tej-hlt1* -h virrms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gj jsl 4ax2w, fcwp: o4iu(*w+yave it in the previous pitch, the magnitude of its momentum i* ws+2 lwyfcj,x(44wioauj: ps

State Newton's second la1 b.9u2z knwvow in terms of momentum.

State the law of conservatiow bjeb8 c1(m-cb/sv1bn of momentum.

  The area under the curve on a Force versus time (F vshih fo*bi -g s*95o(t,2thjkt . t) graph represents

  Which of the following /vy ynk gs3i)buh 2stj1*-s 5ois an accurate statement?

  A small car meshes with a large truck in a head-on collision. Which of the fol;:f szyyk;azt tc0e;(lowing statements concerning the magnitude of the average collision force is correct? c(z;sk t;t0zey:fy;a

  Two equal mass balls (one red and the other blue) are droq52q cky4ro jpu.j25i( vgu:fpped from 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 impulse during its collision with the flp .yo q(25ckvq42gjufij:ur 5oor?

  A Ping-Pong ball moving east at a speeyui0 kl, w:sy2d 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 slowly to the east. Which objewk y0l2yui,: sct experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off ea4xpf-wq g ep,0-b;ztbch other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-onbv+e m3cjb, /l with a 6.0-kg object m, +e3cmvbjlb /oving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at nl2ic qwxz 30q1z4 )e:z0rfn p2.0 m/s tackles head-on an 80-kg halfback runne3 xizp 20n0rqq: zc)1 l4fwzning
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 v0*ha ag m;d:k+0m-wvfsqd6bfollowing statements is true about kinetic energd;f0 ms0 kg *dwvmvb-h6:q a+ay?

  When is kinetic energy conserv5*goe,+qht *x(g js faed?

  In a game of pool, the white cue ball hits the #5 ball and stops, e( bq87;uvxyqet *-x yu5mgm5 while the #5 ball moves away with the same ve-5v ;uxby8g (yq tu*qm7em x5elocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with3g3o9k mcwp+ipzqo.+h lo9/jt n ph63 a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collispoh 3 zk mtp3l9jic9+ ow.g+ph3nq6 o/ion will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides pbtsom/y3hs+rs g 1qd6 , -p0gin a head-on collision with a stationary bowling ball in a frsg /+ bg hdp,p3-tsyr61o0qsmiction-free environment. If the collision is almost perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with alcr9+b8n gz)n speed of 5.0 m/s collides head-on elastically with an identical ballb +nl9r8n)gzc at rest. What is the speed of the initially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very e,p2l ; :doe5b upmxhcy4h56b 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 o:eb5o2be4 , 5yhmx cphl6;updbject after the collision?

  A very light object moving with speed v collides head-on with a very heavy odh 259gpzm 0c3 cihah-bject at rest, in a frictionless envh3z9-a2c md50hi chpg ironment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity of +3(7j6f454r ka h zvfjqp.0 m/s collides head-on with a yellow ball of equal m(kvzf 4p76h 4 fjrq5ajass moving 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 velocity v collides head-on with a verbxkd(e0hjb;xk)l6 2t y light object moving with velocity -v. The collision is elastic, and there is no frictixktelhxb6)j kd;(0 2 bon. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision zn61tug5l1wj, if the momentum is conserved, then which of the following statements is true about kinetic engl 1jnztwu1 56ergy?

  Two objects collide and3hu; ds3 ;ahs+ri8 xis stick together. Kinetic energy

  A 3.0-kg object moves to theqehd/n w3-sjb1, m8dy right at 4.0 m/s. It collides in a perfectly inelastic collision with ay,8ed bj /1s-q3m nwdh
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. Whim)pss : w;bem8csp x9wzl3x*+2q yi4vch object experiences the larm sv9+)ps :qe3b p *8mxzw;sxyl24icwger magnitude of momentum change?

  In a game of pool, the white 5)ceahy-4g-mujwj7/ mt cza ;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. Whic; q*44jc d: 8ahkp6nqn cvlm5ch of the following statements is false4*q;j lp:cq 8hn 4nav 5cdkmc6?

  Which of the following is a false statexe8xm6 w )oj3c,ji2buc0jd l. ment?

  Tightrope walkers walk wisoa-;uk x; r*i a)(rcgth a long flexible rod in order to

  A plane, flying horizontally, releases a bomb, which explodes befo5kqz/m9*p0sd gjj ,phre hitting the ground. Neglecting air resistance, the center of mass of the bomb fragmentsppq ,/k*5g0 zjsj hd9m, just after the explosion

  Two cars collide head-on on :la6a ;jk pz2ta level friction-free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is trp;akl2azj6t: ue about the velocity of this system's center of mass?

State Newton's second law for a systemx4fy0qozu/(2r dc5 u o0q-lru of particles.

  What is the momentum of a 2000-kg truck traveling adrwmc) ,,lg/7f/u* o jb;2jgl f n3jzat 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. 6jze .9v))ek0lvo1kxaq 6iip What is the magnitude of its momentum?ijk l.1voze6)ki)9 peq a6x0v

  A ball of mass 0.10 kg is dropped from a height of 123*ajto+u/oe;xjar ,k m. Its momentum when it strikes the ground iruax/ e*kaojj+o;,3 ts

  Two identical 1500-kg cars are moviubg-( w(v)/w lmuzsf( ng perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What iuz(w lgbw u)m(/ sf(-vs the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizd+i)x5l ibsm1 )jv5.-ls gkw jontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is 1b)mg+ssv) ijjlld5 ix5. k-wthe change in the momentum of the ball?

  A 0.060-kg tennis ball, zv 1 fv3fm5jh8initially moving at a speed 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 the change in mome 5vz38h fmvjf1ntum of the ball?

  A 50-kg pitching machine (excluding th mdf9y/g6km t+ s0slo;ou4d u(e 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 negligibles4ul+t ;s m uomd96g/0f(kdo y friction.)

  A 70-kg astronaut is space-walking outside the space capsule an2zwm : z .4aux.+qk/fgikx:w yd is stationary when the tether line brxxk..:f:u z2kwgz/ya+wq m 4ieaks. 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 capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large object auzu 9e-x .x;ont rest. The small object bounces str.eu ;9-nu zoxxaight 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 m/s to gre2zi9iogue, 2 cyv- -kqle5, m*vove2 get your friend (40-kg mass), who is standing still, with open arms. As you collide, ge v lek eq- v2*m2iu,z-yv,2 c9goo5iwhile 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, straigh-ykx w1qdw8/at road 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 the colliq/dya xw8w-k1 sion?

  A 1000-kg car traveling at 25 m/s runs into the rear )u4p;x u(e hejof a stopped car that has a mass of 1500 kg and they stick together. What is the speed of the cars after thu ex;ueh4) p(je collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast along a level, wc agihhnp a5) .irsup5r((0 track at a speed ofihac5g )pnpr ,hwr ui(5.(0s a 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 m77pl 3 ecqu* :. ae7khsqfsky*o2z1 sgass 200 kg, rolls 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 lands in the car. How fast will the car be moving after this happ*k7lhc qz7 s7ea*u1.q osk2:3 fsep ygens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s ,v e) ;mzq 2n1bib;qur(with respect to the log). With what speed do izbr u1 )2nm;,qe;bqves the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. Thea:)jgvu86sivz. nm:y force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these vzvin ::)u.jgam6s 8yforces to the object?

  A constant 9.0-N net force acts f13 c+ w/zubaglor 2.0 s on a 6.0-kg object. What is the object's change of velocity?a+1zw gl/3bcu

  A 2000-kg car, travel.f d;o1 f.dfqqkup9:8aeha ,iing to the right at 30 m/s, collides with a brick wall and comes to resf.q f9di u efkp,q81 d.oa;:hat in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to y* v;p dfl3ywzc,fpalxt 3l(q 0h9n9+eou at 20 m/s. You hit the ball back along the same path, and at the same sp ,3t+9le(y *9hqpdw;lz3 xlvfca f n0peed. 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 speedsgp/;nq:gm*l zcrw(n0 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 between the ball and the table top lasts 0.15 s, what is the mclz wn;/(0r :gmq*gpnagnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bu-)* bd4xmph prn6 v(h-2rbz pollets, with a muzzle velocity of 750 m/s, at the rate of 300 *o2bn bphhz(drp mv --rx p4)6rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on0ggwzsbf h/e41 .b 5zb the door of a burning building in order to knock the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velociz/h1bbb0 4fe.gwzgs 5ty of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal dr9 pa/ny jt e9jz66q)xdainpipe at the rate of 120 kg per minute. It falls 3.20 m to the ground. z d9yn6 at9 /jjp6e)qxAssuming the water doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s afte*8c /k2o/pszm -kqj ojr 3.0 s, when fired straight up.2/ kpms*q/8oo z-jk jc What average thrust force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg,4ogzqr4dn4n 4a5 qov-q:0 hbg are initially at rest in outer space. They push each other apart. What is their separation o ro 5n bza4g-gv0 qnqqd4:44hafter the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to t 45ff;g/vxdyaw:;o 8o 6amv wbhe right with a speed of 2.0 m/s. It collides in a perfectly 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 c/84:vbyx ao of;vwf5gaw6;md ollision?

  A 0.10-kg object with a velocity of 0.20 m/s in46ultts()i q 7) zdnin the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collisiondt)l nzq(tisui4 n76)?

  A 10.0-g bullet moving at 300 m:5cwws2,v cr y/s is fired into a 1.00-kg block at rest. The bullet emerge 2,srvcwcw5y: s (the bullet does not get embedded in the block) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-partic 03.o;utte 3 o2pudiulle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle havo ud3;it otepl0uu. 23e after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 mwb(om1 goz 2z3/s collides head-on with a stationary ball of mass 100 g. The collisi1o mo(2g3 bzzwon is elastic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving toward the east wiv:fza 7jwnelwe n0p f1zv1,)at;dez.l7 x(1g th a speed of 3.70 m/s collides head-on with a 200 g 11av (vwxaez);0ztj ,zel nlfw pg.7:7n1 dfeball 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/bt x-df8a gw2k6zg1 8+uakha6s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speebf2h86gdat kg8-1z6k ux w a+ad of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.yu*px5ua;ccwq+r5s8 0 m/s collides head-on in a perfectly inelastic collision with a statio;8xs5u5qcc p y*+r waunary 2.0-kg mass. How much kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parkexi92 laxi vmjoie:qwy+53 )bzzd/( t6d station wagon, who's mass is 2m. The bumpe9jy :vzmaz52 6(x )ilboi d/3+w qeixtrs 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 wsh+d ud *j, yucn9 ijb2 :mxh6t4bi92213 m/s in a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result,is6x4,w *u2bj+ iy cdnu 2tb9 jh:hdm9 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 3000-kg car traveling2 nu;4v 8yia0ni6ot ie at 60.0 km/h southnei6na8u y04i o2i ;vt. The two cars stick together after the collision. (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-kg1:pbhm ,uc: ro car traveling at 60.0 km/h south. The two cars stick together aftc 1,b:r hopm:uer the collision. (See Fig. 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a le( 2i,duwdi0,z 9vrrv dvel frictionless surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make( r, wd2vu9izr,d0ivd a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 kg, is movinjmph/-hfx f 43yg;m; cg toward 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 8.0j-yp3m hcf4;xf/m gh ; 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 sv6vzyfe 3(r6o p,xlwy8 ,hdq 2its at x = + 21.0 m. Where is the center of mass oxyrpfd 8v3qe,6vl z6(y,2hw on the x-axis?

  The center of mass of a two-particle system is at the ori.8m;)npry y 5l/bgdf ygin. One particle is located at (3.0 m.yp;g5/l y8nd y b)rmf, 0) and has a mass of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are positioned as follows: 2ogq5.bph4zm/ okka; p ql0vg *v/* f9r.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at ar*4 qgp59o.p fq;z/ovlv /hmkg*k b0(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 locat,h58 2b qdjqp:6ihq raed at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is th,2qbd6:hi8q5aq r jphe location of the center of mass of the system?

  A 3.0-kg mass is posinz xd; 3flmvq98ivon8mz )mg88 d 3e5itioned at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which wix8idmv n nde mf ;io9gl3z8zv5m38)q 8ll 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 hq:1z zk8y 8./km n9rhqo-ijvmk yr/-leg including the foot when /9:q -8m ro .y kmzhirkknyqz8v-1/jhthe leg is stretched straight out. Assume the person is 1.60 m tall.