What is the SI unit of momentum +*m6bnyiy f6g6+aftu?

  When a cannon fires a cannonball, the cannon will recoil backward because th)aqeg+ov* md8e

  A freight car moves ; 0x9kpbvxq*fye-f l- along a frictionless level railroad track at constant speed. The car is open on top.b-pxx* - kf ;lfy0q9ve 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 frictionless i y 3mx+,;g;53ng7l.i a zcwpu mtwf8sgce. What happens to the velocity of the swt gc,sa3ymwl7mf zp8+ 35ng;xi g.;uled?

  A rubber ball and a lump of putty hav3wx:u6 xj14c(rkk n cs+vc2 yle equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearl4kccwlu sx16 rxk23c+n vj :(yy 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 rhk4. zia.jvk0x 79qqf d4*gvm epresent its kinetic energy in terms ofhqvmjxv74.0* 9i4 afdg. qkzk these two quantities?

  If you pitch a baseball with twice the kinetic energy you gave it in the previoqd 0un/bswv88 3*j(b)on:fwqmy b 5xzus pitch 0*(qbd3wx8/5 ): my8nfbonbu wvq szj, the magnitude of its momentum is

State Newton's second laa4bxt t;dw m:+p7p)4egdoz *jw in terms of momentum.

State the law of consek1 gzazvy;rwwd0 vf762*gx : :cgp7gbrvation of momentum.

  The area under the curve on a Forczvml, pkd h9.f ,ts6u8e versus time (F vs. t) graph represents

  Which of the followino1 n/2: gk4f73tvo bdrg jwo:xg is an accurate statement?

  A small car meshes with a large truck in a head-on collisionu67u5 /qfk qrn. Which of the following statements concerning the magnitud/qf r5kn6qu7 ue of the average collision force is correct?

  Two equal mass balls (one red and the ox /4lpip6 lq1/l82qwq2nofpjther blue) are dropped from the same height, and rebound off the floor. The j /22io/l6q pwflxnlpq8 q14pred 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 a speed of 4 m/s, collides with a stationaryak9gv0g3pw7-abfy00;3 kpdv,h hro v bowling ball. The Ping-Pong ball bounces back to the west, and the bowling bal obh;73vppy,0f0kgkah 9 3v0 rd ga-wvl moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce off each qy8v5lmr +i t)5eft68 o b, xewi,,eb77chitdother. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It colllo z )ow8d 2tsdh3)gr-ides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Wg3 ) 8ht2-d)l owdzsorhich statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg e6xlcnzi ap-af4b*y9h b+v 06y3jh+yhalfback3 cnxyf yla-+e6 yz*hb bi460apvj h+9 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 followik0/uqwf b66zxng statements is true aboutf6qu0w/ 6zbx k kinetic energy?

  When is kinetic energy conservsnvm)h j/ y7:red?

  In a game of pool, the white cue ball hits the5nv8zmm -tuq f407sz xwm;a6i #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had q m04v;-8 5wamzzsx7nu 6tmfi originally. The type of collision is

  When a light beach ball rolling wit8tu(ygt d+1,g+ussyji6 0 em rs;3 dlfh a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision wsdy+isgugf m0;e1 tlu3r6 ,jd( y8ts+ill be, approximately,

  A golf ball traveling 3.0)fig99m7 o rx4b.:ad/lce hj kzbqf *+ m/s to the right collides in a head-on collision with a stationary bowling ball in. q ib4f9m7/k)rzx+9: gjaecd* fblho 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 hea6-j y)sxy0x; 2b 82ixj)utqcue o/gn md-on elastically with an identical ball at rest. What is the speed of the initially stopped ball after the collision)yjmqgs/-x6c820o u t jbnxx)y;ue2i?

  A very heavy object moving with speed v collides head-on with a very 8+it xhn-qs.8u a9oyus tf 9:flight object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the:9uty hf8-ss8a+ oxf nit9qu . speed of the light object after the collision?

  A very light object moving with speed v collides head-on with a ver+ n /qfd4ph9rty heavy object at rest, in a frictionless environment. The collis+ dhqn9ptfr4/ion 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-v;zva7ot 5phxi n .b5zo1r/b ,on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow balzt.b75 ro5v1 ;nvh z/apxo,i bl after the collision?

  A very heavy object moving with velocity v collides head-on with oo95dea6b 03s +jnt+e0pvs d fa very light object moving with velocity -v. The collision is elastic, and there is sndd+fe 09vba+j30eoo56s pt no friction. The heavy object barely slows down. What is the speed of the light object after the collision?

  In an inelastic collision, if the b fv nv.h0dtz8-9er9zz+ w;i rmomentum is conserved, then which of the following z9vdz.fvreh-wib9 t ; +08z nrstatements is true about kinetic energy?

  Two objects collide and stick together. Kinxk6i g8k )h4loetic energy

  A 3.0-kg object moves to the rig k8ewfce rck)r .4pe;awvf0n ru5:e0-ht at 4.0 m/s. It collides in a perfectly inelastic e;0 kcwe ve :kwc.f5u4frer)a8-rn 0pcollision 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 5m7sxvmpab/ ndd1q)k4 zct;: object experiences the larger magnitudebm7ndqad t/ v5s4:km cpx1)z ; of momentum change?

  In a game of pool, the white cpfg+cxf (b+p -ue 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. Wz8+uk;lvru,7 a -qkm kqt (lh3hich of the following statements is fals;v qt( r3mukaz,-ul+hlkk8q 7 e?

  Which of the following is a false statement 8pz5fqfk */ lio km45tuw/pj0?

  Tightrope walkers walk with a long flexible rod in order5gwn a /j+0vkj:w1x+mrx ln j/m(tb7q to

  A plane, flying horizontally, rel .i zm1uo/-4q*)s pkmdsrjif6eases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb ffq1-m r*ksz iujds/.o) m pi64ragments, just after the explosion

  Two cars collide head-on on a level frictionun+e6t-ovvd,da 1s7a -free road. The collision was completely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of this system's cd,od7s+ut- v1av6en aenter of mass?

State Newton's second law for a system of para.ix2 +vv 7n)8aqdjbkq 6nri3ticles.

  What is the momentum of a 200g*jy ir1l-l ;s0-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat k xnp9l(4 k0fxis moving south at 20 m/s. What is the magnitude of its momf90npkxklx( 4entum?

  A ball of mass 0.10 kg is dropped from a height ofq,pa j)sl;tm.e /pi qh4 mf(1i 12 m. Its momentum when it stri4qp hitq;e.sfa,1i/ jl)p(m mkes the ground is

  Two identical 1500-kg cars are moving perpendicular to each ot j e1zuih./t0qher. One moves with a speed of 25 m/s due north and the other moveiq 1 htjez0u./s at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0;coy h td eaj/xq:15)c.10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum oe5q/ aj xcod;):h1cy tf the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 mdyv;ghhs0fd6 j 73mf1/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/js06dm d3 hfhgy;v71f s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen b,-;dk0yywj v 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?j;y, 0wvkd-yb (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule ankqw/.fjst wdd enzz +).c3/dwx)6am *d 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 spee.ewtd *skcx/z6qd/ wn)a m.w zd 3)+jfd 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 he hn8n v7 :q08cl5srlve1b2ru /c;gx znad-on a large object at rest. The small 8lv/:r ;07vx nbcruh 1n 2 sle8nqz5gcobject bounces 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 m/s to gre -dnk)optf r-db (vf+,et your friend (40-kg mass), who is standing still, with open arms. As you colltpdo-k,( v-+d n )bfrfide, 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 road at a sj :czp) nseso,+z)2ej2jvek( x r-1zv peed of 6.0 m/s. It collides directlsjeekv(+2v 1 n ,:p zc)z-jsr)o2xezjy 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 stoppe0r svi6hj(m)ud car that has a mass of 1500 kg and they stick together. What is the speed of the cars after the6s0mrhi j )(uv collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast algvj;tkf;*xa4 ong a level track at a speed of 2.0 m/s. It collides and couples with a kv; x*jgtf;4 a50,000-kg second car, initially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 fpba :pr2tv 99kg, rolls with negligible friction on a horizontal track with a speed of 12 r9p:abt9fvp0 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 happens?

  A 60-kg person walks on a 100-kgl:52; +l fjelazq 3y7+ axpzagm8p ;xxx,tj 9g log at the rate of 0.80 m/s (with respect to the log). With what speed does the log maxfll+a+x j8 pxj 7,g:9qltpg5a; 2zmz;3y exove, with respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly incr2l6zr q4xj2j2z;uy iz eases to 15 N and acts for one more secon2 4jzxrq2uzzji6l2; y d. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object. Whaoi mv,m-1p-r 2ukgqj)t is the object's1gmp mq,2irv j-)u-k o change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides witic lcs5 ve-iw*71 rh0nh a brick wall and comes to rest in 0.20 s. Wh7vw ccs5*r 1i-he n0ilat 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 the e3/d h( rd7kjtsame path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the m7dd(r3et kh /jagnitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds of the ball righ+r p(xak,(v;yokeu g 5n4ztf-t before and right a+(v, u5ka(xge4 znrkfyo-tp ;fter 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 a muzzle velocity fkfm(q,3mgi*1h w2nbd e+e 1xof 750 m/s, at the rate of 300 rounds per minute. What is the average forcmewdi(k1 fh+fx en*qgm2 1, b3e exerted on the machine gun mount?

  A fire hose is turned on the door of a burning building in oro7bm( s5sl/4m a9dsqlder to 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 n s4bm o5smq9asd7/ ll(eeded, assuming the water doesn't bounce back?

  Water runs out of a hz +d7cnd :dqlmoh :t37orizontal 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 does it exert od tm7ho+ n:c7dq3:l zdn the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 4sq /qru.x0kg8: +m0yzuj z+ fh0 m/s after 3.0 s, when fired straight up. What average thrust +/08z0jq:uq+ khxsfr ugzy. m force does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initcc3dt v0ayh*ltl/sc t xcy1;4*h,3c vially at rest in outer space. They push each *x3, l vtdyhc*;03vlac 4ct1tysc/ch other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to5d8 jnnep/3 jh the 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 e j58nd3pn/hj after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a h 87fqj)z e/1/ktbf4u0yqm hwt ead-on elastic collision with a 0.15 kg objechqtb48 fmtfj1 )/qy07zw k u/et initially 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 w:.ki1 .4zrurtjn,i fto a 1.00-kg block at rest. The bullet emerges (the bullet does not get embedded in the block) with half of its or 4.1jf. ,ikutrwn z:riiginal 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-partic9slh,e99tsthy*(m(;0y arrv59 kbmo(rh yih le (which consists of 2 protons and 2 neutrons9r9m r9*b05 syy h;le hkt,shm(rv9 h(t(a oyi) 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/sz6*d u8o6vjkxvi qw2+ 1fo l 3n;3qhzf collides head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed+ fj;kzxn2q681fzwdv i3o3lu 6v hq*o of each ball immediately after the collision?

A ball of mass 400 g moving toward the east with a speed of 3.70 m/0u72;g5vvr c;ntligcs collides head-on with a 200 g ball sitting at rest. The collclt0uc;;ng vv5ig2r 7 ision 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 mo7 t8njvy,wtzy: 8w1. It collides head-on with a 3.0 kg mass at rvy t7tw8m : y8,1owzjnest. If the collision is 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 4.0i*q)u:asv1.w nw,k et m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost dvw*tn sa.q:wi, k )eu1uring this collision?

  A car of mass m, traveling zw*us;+9+ fg9- jwn6vmx bundwith a velocity v, strikes 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 lost in this cnj9u*u +bgmdwf-+ wn9x ;6zv sollision?

A 15-g bullet traveling 213 m/s c4pp5 (ib r f,w:r,kvoin a vertical direction buries itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullet/block combination moves ve v4f,cborw:(r5 p p,kirtically 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 coo68,d q:+7 jdp 09rhptfkugqbjn *.swllides with a 3000-kg car 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 after collisionh+qj:dp.rudj* q gonpks8,9 06wb t7f?

  A 1500-kg car traveling at 90.0 km/h east collides with a 3000-kg car traveling wskuyhs8 -t4( ffd2cnzk/u;:at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What i uny8ch- ( wfk;4sz2s/k:tf dus the direction of motion of the cars after collision?

  Two objects move on a level frictionless surface. b1nd4dfa kukdu66- bg:4zib 8pk c 2 j9)ygqr+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 thepzba gf4u2:k+ijkd-6u 1c4bg ) r8dbk6dy9qn collision?

  A small bomb, of mass 10 kg, is movinz6g 0 bz /( jg/6gcr(w yagcd:x8mvo6ug 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 moving east with a speedg66zg(gwomyd:0( ca/ 6b8rgc /vux j z 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 =ul eaah d1xkjo ,(p1(0 + 21.0 m. Where is thee,p d((0lha1uxaj k1 o center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin. One particle is q/0 n fa/vj wy80gy:eplocated at (3.0 m, 0) and has a massjg/p:/v an8f qy0ewy0 of 2.0 kg. What is the location of the second mass of 3.0 kg?

  Three masses are posit41hr i5z/apsp.v u l1qioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.a1 piz4u5p /rlsvqh.10, 1.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at . k ;4z,x,vyapr zo2rtuib- 3b,jg+gp(0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location o,r t3g;jiozu ,y2z,rb4. xkbagp -pv+f the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1. tj7v9v423s5i- wsds q o57db2lpalmhc5;h ec0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which w5it c-mq;d2j vpbll5dc9 vhs 7 s5eoh3w42sa7ill 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 inc1bv dz8x +p0cl4s fm.l(m7dke luding the foot when the leg i 48zmcxl kp.slmedd+(f vb 701s stretched straight out. Assume the person is 1.60 m tall.