What is the SI unit of moment2id*qtcb ns4u;*yrs5 um?

  When a cannon fires a cannonball, the cannon will recoil backward 3 x-dno*dysy: because the

  A freight car moves ahk 6w 8lsdz12 yt.h8gblong a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car.8 .z6 2tlhyh1gbsd8kw What happens to the velocity of the car?

  A child falls sideways off x6rhaivw r i5vs o z.en)3e*z-bfv(51a sled while sledding on frictionless ice. What happens to the velocity of z5is)nva hew51vvrxe- 3ib f.ro( *6zthe sled?

  A rubber ball and a lump of putty hav+-xykyfx v:nf7 va h+9e 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. Which objects experiences the greater momentum change- xk7vha+:xy+ny9 f vf?

  A sailboat of mass m is moving wib0 f9t;xfo u.mth a momentum p. How would you represent its kinetic energy f9;mxu 0o.tbfin terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you x-lbdf8o).2mempkz -gave it in the previous pitch, the magnitude of its momenloez8bp xf )m.m- k2d-tum is

State Newton's second law in term d)ez)h,yns8 ul4k 8ids of momentum.

State the law of conserv-wvm j35ee6bpation of momentum.

  The area under the curve on a Force versus time j3w uyjw;8(xy(F vs. t) graph represents

  Which of the following is an accurate statementonv ia z; m75j7dke/d*?

  A small car meshes with a large truck in a head-on collision. Which of t e xwj2ppf stp ./dqsc+-/-dt,he following statsdqw-t.p2 jf/x+ /s pp-t c,deements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from+mn uj7c2e1 oymm.e, w the same height, and rebound off the floor. The red ball rebo m, nu.ee1m7wjmy2c o+unds 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 a speed of7+d0 8y phhunq 4 m/s, collides with a stationary bowling ball. The Ping-Pong ball bounces ba+qund7 0p hh8yck 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 off each other. Linearr gr 3qgb-)4)mhw5fgk momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It .dc 6rw.q2zx o v i,m -t3k-vna.oyw0bcollides head-on with a 6.0-kg object moving to the left at 2.0 mr,-.yx.6 owd3vozic02.at wmkbv n q- /s. Which statement is correct?

  A 100-kg football linebacker moving at,i7a6 x g6kuo7lac o8i 2.0 m/s tackles head-on an 80-kg halfback oo86cl 6iga 7ka7u,xirunning
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 thein 5ctebi55( t following 55inct bie5t(statements is true about kinetic energy?

  When is kinetic energy conservedmb (opq)9 zz3cul0 c8v ggv+b1?

  In a game of pool, the white cue ball hits the #5 balym4s 7iqj crb8f8(ix+l and stops, while the #5 ball moves away with the same velocity as the cuyr4q( i78j +if8sxcmbe ball had originally. The type of collision is

  When a light beach ball f:wj c.qa0;;r9f7vxfa blhp 2rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed 0haf cj;lvr7bf: x.pf2q;w a9after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision *p4x+n-jn(os3vhcbn ph. t 9pwith a stationary bowling ball in a frict(vbn3*p h j.tpn +9-soc4nh xpion-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 elastically wit d0;qs*o,xf , ofyln9yh an identical ball at rest. What is the speed of the initially stopped ball after td;, f9o* yxsoyfnl0q,he collision?

  A very heavy object moving with speed v collides head-on with zm:rs;e e)ez6a very light object at rest. The collision is elastic, and therem6) z;ere:s ze 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 sp;r)g tv vll3d+c i/i)0ysjoa5 eed v collides head-on with a very heavy object at rest, in a frictionless environment. The collisiot3r+ o5s ) ivcaj/y)0gd ;llivn 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 wtn0i hoh6 i7v29bigc9 ith a yellow ball of equal mass mobc9o hit2i0i79 hv6gn ving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object movinb: 9exau 992qjcml 29 8upmifig with 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 isi9q9p2 9em:la u9 jbu mcx2fi8 the speed of the light object after the collision?

  In an inelastic collision, if the momentum is xx;9kvzkft/osk v ,; uie-s -4conserved, then which of the following st/ov-;tz f94sxkiu -xkks e,v;atements is true about kinetic energy?

  Two objects collide and sti9 kd;cn)ch - ua.blydil3z2c, r yl)z8ck together. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s2 u 7j7n1-ey 3xc)vdproygz3a. It collides in a perfectly inelastic colli7avy x c-dzguo3yp2j e)nr3 17sion 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 obj-gj ,65o,9h . gcx z1pajr6a mkfvq6gqect experiences the 1a6fq vxr6g ,56j kj h.moq9a,z-pggc larger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball and o6 d ftoaq+zuc1- nj.6is 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 following stateme *5,7fc5dqrokxau+yp71 uwcs nts is falsu yocfwp r+ q7,kdc17 s5a5*xue?

  Which of the following is a f*)qphja8i/ 7 dzybyo -alse statement?

  Tightrope walkers walk with a long flexible r-vu1zw j4wc. b:p j0fvod in order to

  A plane, flying horizontally, releases a bomb, whs1 p;t(i wqx)rich explodes before hitting the ground. Neglecting air resistance, the center of ma( )irs 1pw;qxtss of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The cb*,ff*a /k nlbyu 0l(qollision was completnbf**,u(ykbq/l lf0a ely inelastic and both cars quickly came 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 system of particles.k0m26 +bvh9 2:+cvs exf gognk

  What is the momentum of a 2000-kg truck traveling at 35 m/kbh(:1r1c2t s/)+vfi /gbc /ll, cbacz3ob ufs?

  A 1200-kg ferryboat is moving south +do( . 3 f/vvsg k*vvgf lus *jvqws+,u976zccat 20 m/s. What is the magnitude of its momjwz*3(k,uv6qv*sc ogf/9+.ul dv7 vcv fs+ gs entum?

  A ball of mass 0.10 kg is drozg.gw:6+ nmirn/8qc lpped from a height of 12 m. Its momentum when it strikes the ground iszmw/ +.6 rq cg:l8nnig

  Two identical 1500-kg cars are movingzy k3,*8yaz8xk.vhew:k pf;q( uc2a u perpendicular to each other. One moves with a speed of 25 mqzu8f; y.:ec*y2hka ,3az8 wp(ukv x k/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, traveling horizontally at 30 m/sbf:bdzv lv,-5, strikes a wall and rebounds at 24 m/s. What is the changvv 5bd-z:,blfe in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck by bt7v74w,m sqhtezd /1a racket causing it to rebound in the opposite direction at a speed d4s ,ztmevwh7/b tq17of 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching mac3.nhl k,u1ld ntpt7w5j-lx /d hine (excluding the 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 negligi n ll5dp.3lhx-d,u w tnk1t7j/ble friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stati 0)rsk-isaaf 1onary when the tether line breaks. As a means of returning to the capar if )a0s-s1ksule 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-onws9v.(z+ jqvxa i .,x5vn,l nv a large object at rest. The small object bounces straight back with a mom,xqj,+. 5viwvzvs nl9 x van(.entum 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 greetirk + 74xsal3p your friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move off togethe4 s37r lx+ipkar?

  A car of mass 1000 kg moves to the right along a level, straight road at a sp;q -41semhgjb*eabl h xmy81q o)1yg7eed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the coexgb- o7gy bq*; q4 1e)sj1mhyh1am8lllision?

  A 1000-kg car traveling at 25 m/s runs into the rear of a stopped car tha4k2/3czq*f;b8uw yy uv9 ragk/6cuypt has a mass of 1500 kg and they stick together. What is the speed of the cars after thzf//yu4q v y23 a 9r;b6gpkcyukw u8*ce collision?

  A railroad freight car, mass 15,000 kg, i 5dy2 (v,tmddprlb:7ps 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 re:5,7lyp d 2vtmp (ddbrst and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of ma0 pnsks2*kan;2g w.juss 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 hgwnkajks.s;* 202 nup appens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (withj8 q iw3lzp-5rj+wrri4 (ldo ; respect to the log). ;5z3roplir w q-l(j+ 84rjiwd 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 for 1y5h nv4 1 p*vosainysvp(1p6ce suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces 1vo6hpp1a*i 4y 5pv( syv1ns nto the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. What is tueuy kx ,-,b5b 5t tvhhpean/kajo8n+/5i-a5he object's chan5t 5yo ,nkbk8/uapxh/5ea- v - tn+ub ij,e5hage of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, 0vk4h8q *8q zztdogw kzex*hj - co/u-73rkh 7collides with a brick wall and comes to rest in 0.20 s. What is the average force thed-t xoez 4 *ku/0z*3zg- ohh7q7 rhwvc8j8qkk car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. You hit the ball back alonu 70 ejbw;gp-eg the same path, and at the same speed. If the bat wae e0g7bw uj-;ps 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 zcazr1h ao0.n9o71x 83r pkrb. The speeds of the ball right before and right0 rkrrhop.1b na81x93 c7zoza 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 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 f7*1cva -utca a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What7v1 aaf*cu-tc 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 kno:m g. uc. hp( kio4;9+dqgaeo5ipmn5 pck the door down. This requires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of h+9n uigeppo(5 m;.k c:.5aqgmo4ipdthe stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizr yxjbq;1:rx4qzi1d) ontal drainpipe at 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 doi dx1 xrb jq)r;:q1y4zes it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velo ,7t*pt)y3/ kdboiig0webw y: city of 40 m/s after 3.0 s, when fired straight up. What avwe,/tyt*ii 0od)3bwg pb :y7 kerage thrust force does the rocket engine exert?

  Two astronauts, of mas:pr k+ f5o(uhxses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. (uf5or:k+phx What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves -y( 3rsgvf xcc)fdp1, to the right with a speed of 2.0 m/s. It collides in a perfectly elastic collisior df )(gfy1xp3s c-vc,n 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 then,mzezcmb,- rxv+w 4 ;rb ps23 +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 x,pb-vzen zrm4 ,bwm r2cs;+3collision?

  A 10.0-g bullet moving at 300 m/s is fired4yk s,m)v(wgrdv.) rg 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 ( )wg )d,kyrgv.4vm rsright after the collision?

  A proton, of mass m, at rest, .c*px:-w dyeqji mu-.is struck head-on by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will the alpha-particle have afteu-w:ex djiqp* .my-.cr the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides heh o3eae8;zc si(4 s88ueai0 zzad-on with a stationary ball of mass 100 g. The collision is elastic. What is theoz(ei;0azee au4 is 88cs3h8z 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 wv)dp:a-66.nq0 rxhmo dsx 8j/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elastic.dp:0avj.hr 86n -sm)dqxwox 6
(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.m-k90nywoqd x/qo6-z It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed knmyqwqxz9-d /o6o0- of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of vspvhci5f/dk93b g zji vq5)1**5mo. mvyf6t 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost during thid3g)t i pi6mk55vb* z 1y5*h.ov vs9fvf/mc qjs collision?

  A car of mass m, traveling with a velocity v, strikeeq7qtpc;mn .s .qli09s a parked station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic 7n iq0ql emp. tqcs.9;collision. What fraction 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+lj8h iish4j hwyx,)5 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combina8 sy+iljj)hih w h45,xtion 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 ca*0v6sy d tt,e l gbt2xkw:(8qxr traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the speed of the cars aftkgqt68*twd x :s vtl0 (,2yebxer collision?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car b98 lf,(d0sw2 rscz gvtraveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. bf, drw(2vgs8 0zs9cl 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionless suilj cx7 j-:4onrface. 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 momentum after the collic7j:l-io x4n jsion?

  A small bomb, of mass 10 kg, is mt5h 3nstamj6tmfq 556oving 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 8.0 m/s; a 4.0-kg fragment movia55nt3 mhq6t6 jft s5mng 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 sit;lbn0,o9rnn ymzs (68naxyg9s at x = + 21.0 m. Where is the cent(z,olx0b6mgan n n99y rs;ny8er of mass on the x-axis?

  The center of mass of 3;4inww-a 0fd+pckauf dv4e* 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. What is the location of the second massai+fk*dw43 0d ewvcu;ap-4nf of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kgv ;trz3*shx l, fj)k*j at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determ 3x f;t)ksvzl,h jjr**ine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0), (du/hyhhn**dp: )x o8 n1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the center of mass of th/dpn *h no8hh):yu*dxe system?

  A 3.0-kg mass is positioned at (0, 8.0), ajvt/86 ;rx pr5ba* xdynd 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 three masses being located at the origin,xv rx6yrp/* j;abdt58 (0, 0)?

  Use Table 7-1 to calculate the position of the CM of a whole leg including t7b8h xkj(6-usy+ kemrhe foot when the leg is stretched straight out. Assume the person is 1.60 m tall.7 u+rm(-kskj6 8bhyx e