What is the SI unit of momentum h5z jnw*9))tdlt+x e ywm,q1a?

  When a cannon fires a cannonball, the cannon will recoil backward because th3ja3dom bp1 9ce

  A freight car moves along a friction:vntvcw7c ,d8y4lwg ,less level railroad track at constant 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 : gv 84, n,cdwc7lvytwcar?

  A child falls sideways off a sled while sle r ze x(hcw)ey4o u;k07nl3z+odding on frictionless ice. What happens to the velocit(+c4 unhzwey3z7)o0r x; elk oy of the sled?

  A rubber ball and a lump of putty have equal mass. They are txa+hmt 7y8 gmeuom2z537x ),cavs h8 nhrown with equal speed against a wall. The h+ hm 87nx3s, umv)zex2a tcm58 aoyg7ball 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 wi1 u-0m cth cd9wp-.wktth a momentum p. How would you represent its k w-wthukc -cm1.0 9dtpinetic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic n1e b,iew7, lnif1y7 qenergy you gave it in the previous pitch, ti1fq 17inebln, ,7eyw he magnitude of its momentum is

State Newton's second law i8o*. j,ku.t drpxky s;n terms of momentum.

State the law of conservation of momvc(0eep7l iohdd7 vn,sz 8f 3)entum.

  The area under the curve on af0 s0qs6soct9 Force versus time (F vs. t) graph represents

  Which of the following is an accurate stats1vy )ba;(ki , oyre1aement?

  A small car meshes with a large truck in a head-on collision. Which of thc67w sd1nr)4lwx ki h5e following statementx4ds klww)ircn7h51 6s concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the same hett9s z7/-k7-p vmn n0,sgm p4xpn.sfiight, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnitude of impulse -s/p7vk4txs gp.,-nn psnmf zm9i0t7during its collision with the floor?

  A Ping-Pong ball moving east at a1h 54sr1 twj lg.uxw4q speed of 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces back x4t1 swr4jql51ghwu . 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 bounwmfven-fa 8hc9 ma 0-)ce off each other. Linear momentum

  A 3.0-kg object moves to the r -n8fg7zhtr zy8xs2j3 n m:p)c*zw8samy.ic/ ight at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statemenr3sy/ f7* 2c-nnyjg8ht sz8w z xpz)m.:ic8mat is correct?

  A 100-kg football linebacke06m-5c p 9f1p8a:0gwvb whtirlb-dwg r moving at 2.0 m/s tackles head-on an 80-kg halfback 6wht pf-9b-wa mg581 pgdw0l0i:vc brrunning
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 tvhe-*:j kzj1 vhe following statements is true about kinetic energy-kv:j1ze j h*v?

  When is kinetic energy conserve i8+3 k9hd7t; d*2 hlntvylatxd?

  In a game of pool, the white cuegsm3 n8.ed8x8ftt)u y ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as388dfu.e8y nt) gtxsm the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m/s col(yq54aly4n tkhha;, w zsp*u7lides with a heavy exercise ball at rest, the beach bay5saan*4ph w h u(zk,7;qy4ltll's speed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s tai hfh1 f,;+eno the right collides in a head-on collision with a stationary bowling ball in a fe+ h;niaf1f ,hriction-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 head-on elastie4dw;cvu0u;: y , xvap;isxq6 cally with an identical ball at rest. What is the speed of the initially stopei y v,ucu46; vsq;w0xd:; xapped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very k+dgbm .uojl-/wmq6 * light object awbj gqm.d*ul -mo /+6kt 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 collision?

  A very light object moving with scq n+z geos f1 c,8i c010xw+*1slcsohpeed v collides head-on with a very heavy object at rest, in a frictionlesgc10lofcw8h11*e ci0c +x, ssq oszn +s 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 collidbwi38hgh18 ggtqu29 fes head-on with a yellow ball of equal mass moving with a velocity of -2.0 g ib th9f8 wh1ug82g3qm/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving with velocity v h)n j822tvh .x8ju l(h/shlxtcollides 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 d 8 jh8 l(ul 2h./2sthnt)xxhjvown. What is the speed of the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the fol fezzyq,. 8cg7lowing statementscgzqef.y z 78, is true about kinetic energy?

  Two objects collide and stick together. Ki0(nc axoal7/eeopc)*netic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a pew fw xe*(+-xu6sz2hofrfectly inelastic collision ush6x w -f*2wxoe(z+fwith 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 ocm6 g.4eixiug ;p h5jz.3 mn)kbject and sticks. Which object experiences the larger magnituk ic 6pgimu4g 5n.e3zh;)jxm.de of momentum change?

  In a game of pool, the white cue ball hits thz: are(5a1 tbqys:/eh e #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. Which of the followep;ge(lmh0q 8zt8( fsoxj 0/ia,s ) wuing statements is fals0jm 0et8iweq ;g(8(usf z/),sl haoxpe?

  Which of the following i:w+p1oyf/logv*em dc7 2s cl5s a false statement?

  Tightrope walkers walk with a long flexibl vzmq y-c9z4i+hwl57 l+ekfz4 e rod in order to

  A plane, flying horizontally, releases a bomb, which explodes before i7cr xk r*3xv1hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after thexxv cr*1r7i k3 explosion

  Two cars collide head-on on a level friction-free road. The collision was comp whb +xzl6vk-6)rzr+ bletely inelastic and both cars quickly came to rest during the collision. Wharx r)6w zlbzk++-h6bv t is true about the velocity of this system's center of mass?

State Newton's second law for a system of partiytybld b4y zxvd1(y;id;h3 x z 68(+edcles.

  What is the momentum of8 um2jfme zo/( a 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnituse0-7o cuuw; kde of its momentum?c0;ouw -keu s7

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its jh14j l vo6yjbelk-65 7g,m lcmomentum when it stryo6,5h 6ljk7jvg bc j-lmel14ikes the ground is

  Two identical 1500-kg cars are m yut.x8jpk:4+9l gtek8bgyt+ h * jza9oving 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 is the u94+gkjz *hb8t:et yt9gj+x8a l. pkytotal momentum of the system?

  A handball of mass 0.10 kg, traveling horizontallzl )s0fhikwg k:d c+5ma1)vx,(w2 rjpy at 30 m/s, strikes a wall and rebound)djz wm2s0x(p+ : hf5)ilv 1kcrgka,ws at 24 m/s. What is the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a zoobsafs 14 ca7w+j0d.gce4so4 9 pr 2;n4sarspeed of 12 m/s, is struck by a racket causing 9e 41oa.bacw so2;asc7sg 4f p4r zs odr+nj04it to rebound 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 baseballl:c57;u ww4j/ ,z qnilllup;sp lo)u 2) 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 machine4);pl5jpu u 7qzll uo2/,:llw;wcsin? (Assume negligible friction.)

  A 70-kg astronaut is space-walkijs h3)mlw8mc *1. rvqgng 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 capsule *l3m.qh g81rwm sjc)v?

  A small object with momentum 5.0 kgm/s a x1 +.0 r5 pkfzn-u pf(nh8fpyjj3 *(sqy*gaolpproaches 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 magnit jfp(ju q fz8a f.1rn0s*xn5p-o*gkyly(+3hpude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your friend //n) nozodl/v (40-kg mass), who is standing still, /lv o)n/on d/zwith 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 ab bv4bd v wb+i:ir(x/;long a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the+wbid(v4:xv/ bb;i b r total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped zoz5p fx86: r vm;k a5a()lauqcar that has a omaz6ap (uqv)kxl ;f5 a :rz58mass of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowe;dzfyj05xz l0vwi7gv )5.cf 6 v2uen od 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 braked5vg2 ).f6 ojc0f7uxvzn5vw z0yiel;s released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, kyilug(*7 btj0a-qw) 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 (b7 tlky-jwai0) guq*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 0.80 m/s (with respect t fatdnk:1/j:lo the log)k/jat1:fdln :. With what speed does the log move, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The fork z:1 x) o9bdpd tx274jy3bomrce suddenly increases to 15 N an:p17 odbo 24k9jzb xy)m xrtd3d acts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts fo8/y( 4h5fjcznacx b,cr 2.0 s on a 6.0-kg object. What is the object's change of fcab(4n,hx c5y8jz c /velocity?

  A 2000-kg car, travelg1sl y6j m6p-,(qce lqing to the right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the average force the car exe j sy lpgemc,61q6-(lqrts on the wall?

  A 2.0-kg softball is pitched to you aty.r4bh / voxam7wlk6 ( 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat./mx rwb k4al(hyo67v 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. Trb cskf,q+(2 2;h6a e-pf:xnptqi/ lthe 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 between the ball and the table xk+;r c q2:6i, etph(lta 2pq/b-fsn ftop 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 bul*+fc u* 7 3 gxn4famo(d3emuzzlets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What isf x amu(o um*z 37z+c*fge34nd the average force exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in order to knock th+g8*rxa r6 ehse door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what g+ae s6rh8 r*xis 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. It-m 0sbar4 .smqi*6l lr falls 3.20 m to the ground. Assuming the *rqb-4islmalr .m 06swater doesn't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velo uw*0sar rueq -8 sxxvvw1a.3:city of 40 m/s after 3.0 s, when fired straight up. What average thrust force8-*e0waw sqvrusxv. u:a1r3 x does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer space azt )tfetu;f5:.g -peyic/3l. They push each other apart. What is their separation after the lightpcal t: ffe)3zy.ti -;ug/te5er astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speed of 26ipl( o r:nt8av7nxi:snb 91 c.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving to the leftpi:7os cnl t 9 v8(b6a1irnxn: at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a vel1vkbfg+h3 wq 8ocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. Wha1 vfq h+b3wkg8t is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at pv7 rf 1jai7:q300 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 velocity of the block right after the a177jvq:pr fi collision?

  A proton, of mass m, at rest, is struckc;a hph* 3- q;a+hcvl, qus+fm head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed * ccq;3+huls hv a fa+qh,;m-pv. 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 colliwshtq1o.g28g c5 uc96np1t ildes head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediateltpwicu2og9 81l stch. 5gn16qy after the collision?

A ball of mass 400 g moving toward the east with a speed of 6oj fg.pq(c u(k6hm m60ak3pz3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic.u0agzojkm6 ( h3pk .6(f mcp6q
(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 q v0e r1jnt9cd2sis2 j4f :g5fspeed 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 th2j :jgn14tc0ivr sf5sf2qd 9e e speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 4.0 ih*a*jw)i c0+qrd8ml m/s collides head-on in a perfectly ic8ij +r0qml )hdaw**inelastic 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 velocit ni gbr/7kyw/*y v, strikes a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fractioninyb/wr* kg/ 7 of the initial kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.4-k5w o.aqnn 81fag block of wood a restn q fa1a5ow8n. directly above 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 at 90.0 km/h east collides with a 3000-kg car traveling s4yr+e7 0dm1bv:qgp pat 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-m 4p0:svy1r eg+p 7bqd1.) What is the speed of the cars after collision?

  A 1500-kg car traveling w2)fw7dh6px kl 4/ebp at 90.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The e /b7k wld6)xp4hfwp2two cars stick together 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. Object A moves q: jnvwo;0(o6hb6pk /xsb3lhc( p1 jmeast 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 theirvhlnsp1w q(/(c x:okj0po;b 36jhb 6m combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward the North with a ve 8qd onvj(;p-zlocity 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 n p;-oqzv8d j(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. Wher5 -vt;imlr)rt e is i5- l;m)rtrvt the center of mass on the x-axis?

  The center of mass of a two-particlevf6lda.eqb. z 2.w m-n system is at the origin. One particle is located at (3.0 m, 0)aw..ldmznfe6 .vb q 2- 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: 2.0 kg atcl *w k:z+kz*v (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinz k*w:kc lzv*+ates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are q vs+fparxh*6qh.zq c u;48b,located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What ishb*cp ;sfzv8a q.h 64, rxuqq+ the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.p)nmqgm(g9 rl9rn yp;x 7ex z kgj3*/-0), and 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 system of thpjernm7pmg9n3l*k / ; g-rxz xyqg9)(ree masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole legewvef0lg+42j 6:kx3kecskp 5 including the foot when the leg is stretched straight out. Assume the person is 1.60 m tpw le e2sf6x:kk g+cj03 ek45vall.