What is the SI unit of momentumr0o/ qzb- rg4b?

  When a cannon fires a cannonball, the cannon will recoil bacge5y ;uqv nu0 ,5 ;g9yk2ebi9vq dqnq*kward because the

  A freight car moves along a frictionless level ys3(fh4r 1og krailroad track at constant speed. The car is open on top. A large load of coal is suddenly dumped into the car. What happens try(ohgs31 k4fo the velocity of the car?

  A child falls sideways off a sled while6x / cqxiqt.s-/vo*y)( ils ul sledding on frictionless ice. What happens to the velocity of the sledx- lx. qy/6vqcsus*ioi) (/lt?

  A rubber ball and a lump of putty have equal mass. They are thr5hnxdp2el7u u/v 4trl 1oo. :bown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. T h7:x4rtld 5o1bu e.o/2nvlpuhe putty sticks to the wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How woul:heso xi4n k*l- g0z 379qyzbvy:s5a pd you represent its kin:lk9n-4zyb 3s70hxo q5sepvyg*a iz: etic energy in terms of these two quantities?

  If you pitch a baseball with twice the kinetic energyjrqbr 3z l8n98 you gave it in the previous pitch, the magnitude of its moljbrz r9q8n 83mentum is

State Newton's second law in terms of momew3bx*5xcx4 d6 bvu/taem;y 1n ntum.

State the law of conservation of momentqbd7jb 3oe;s2 m/cu4xum.

  The area under the curve on a Force versus time (F vs.wcxt/v x p-d5 )kp.,zjs;uirb l8a f;7 t) graph represents

  Which of the following is an a-li9 ms)bzt ei.oo5:jccurate statement?

  A small car meshes with a large truck in a headxbiqqz9y r2do4a *(yp mo;;c(-on collision. Which of the following statements concerning thei*;dx4b 2qo;r(yaycpz 9o(m q magnitude of the average collision force is correct?

  Two equal mass balls (one red a,fm j rj/(uxyjuf41 9and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds yr9,j(xufjm 1u4/ajfto 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, colli): w-votmgsz *56fk,w - daxhides with a stationary bowling ball. The Ping-Pong ball bounces back tov5twsgkmo)6z: -a w- hdf*,xi 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 andzifwhe39r cr,s/ mqojn(-- y s7 ov.j: bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides )0vy j cz(nxrmq *a+ em(t-j.itbd 8j6l0q :guhead-on with a 6.0-kg object moqt).xjcj geby:zda u+-8r* 0( i6mmj 0nqltv(ving to the left at 2.0 m/s. Which statement is correct?

  A 100-kg football linebacker moving at 2.0 m/s tackles head-on an 80-kg halfbapjnt 1f c,w).m+lti2 ock r1 )ico f,+t2t.wlnjmpunning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentum is cons x 8reuy-0wixf1 g4*1dcbeqm,erved, then which of the followime81rbd,u-*ycxg wqxe 4i1 0fng statements is true about kinetic energy?

  When is kinetic energy conservl2,i j p-i/2tv fm(maged?

  In a game of pool, the white cuo wvm42 p(f1h9h fpz;le ball hits the #5 ball and stops, while the #5 balpm 1f2w4l hpho;(z9vfl moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with*twtv.8k) wr:cu8xca *o 6 wsy oddw41 a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the kstxdrw:voaowu t. 416d8*wc y)cw8*collision will be, approximately,

  A golf ball traveling 3.0 m/s to the rid3g-g p*ns adkwt;yrm)s52 j j09kidk8a0 3eeght collides in a head-on collision with a stationary 009ma5 kgkn8kte asdwi;-3jdg d y 2pr)3js*ebowling ball in 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 head-on elasticaqopj;b+-:ae s+9uji0v *lg stlly with an identical ball at rest. What is the speed of the initially stopped ball after the collisio ;q*e uj s o+b:-igv9lpjast+0n?

  A very heavy object moving with speed v collides head-on with a very light obem .g k+qbv2k5-m 4 sl.lwq4rfkwi/k2ject atg.li.sl qr4w b/kkqw2k mve -k+f 2m45 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 speed v collides head-on with a very heavtu su9xx smm1e i2*--zy object at rest, in a fric2m9 xs*1-se t xuzium-tionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collision is

  A red ball with a velocity o x- yn*mpx,pm9 /yxp2kf +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocn 2/ mypx-p*xy9 pkxm,ity 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.h4e;h/eeglt e,z)+o 430,edn o0ng mfbece q 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 e n44.d0 e c/eoh n, heg3;)0eo,g+elbzeqftm the light object after the collision?

  In an inelastic collision, if the momentum is conserved, then which of the follo5(ql3s)f lgdwwing statements is true about kinetic en5llfg (qs 3)wdergy?

  Two objects collide and stick together. Kinetic jz0fh9cn1+ wm energy

  A 3.0-kg object moves to c43ubhb)j 83 dsd:hnj the right at 4.0 m/s. It collides in a perfectly inelasu4)c8h: d d hjjbs3bn3tic collision 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 lhib*t0i +u 3(b 4ylufoarge object and sticks. Which object experiences the li*t fobui+ yb 4h(30ularger magnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball lns6g,r 9jx00lhu0 p z/)tbmoand 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 following statementsl q0 kwp c; zmwes0d192eem35 dtr(9bj is falsee9rmj bd0wzd;p 2 kq me1cwtls 9(e530?

  Which of the following is+ d)ud-fm2 qsx4hguktx2*4i*dh f4as a false statement?

  Tightrope walkers walk with a long flexible rod 2td(s41yxkdopi g5wnp nvw0 *q69 ww7j p65crin order to

  A plane, flying horizontally, reled 4aw( ie8p4feb tm. s32f12ydscip:bases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just a4 4b32ypf: csbai2ep twd. (d8ei f1smfter the explosion

  Two cars collide head-on on a level ffe nrp1 4i 74dvsj8u8eriction-free road. The collision was complete4euv7ed81n8 4jf i sprly 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 particles3evt x z,2p,j j6rphhlb+u;h3.

  What is the momentum of a 2000-kg truck4 p)vpkeub6mklhapf 6x*b ,:3 traveling at 35 m/s?

  A 1200-kg ferryboat is moving south at 2+;wlbwk l v y/lp/i.8t5nn1h j0 m/s. What is the magnitude of its momentkn1/t;wl.h8j 5y/ w bv+lpinl um?

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum -h,9rb.c 8kta1ed acr5,bj tcwhen it sj-, 9,5t a hccderba1k8crb.ttrikes the ground is

  Two identical 1500-kg cars are moving perpendicular to each other. One moj0q+ +qgzxj,q pp+d t8ves with a speed of 25 m/s due north and the other moves at 15 m/s due eas+p8zqjt+ 0 j dgp,q+qxt. What is the total momentum of the system?

  A handball of mass 0.10 kg,7+/(tqtxixv wb f:fq35qy; ks traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the 5bf3 +qyvtq/skq:x wx 7it;f( change in the momentum of the ball?

  A 0.060-kg tennis ball, initia 8,i4fibd;lpj*m9elje)n cpm8gr2b,az a4 /zlly 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 momentum of thejpl i l/bb9z8m*i 2a ,;4cfjn8am4de przge ), ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozentx3pd5.gbc8g k 0w s2h pond. The machine fires a 0.40-kg baseball with a sp p82h.0gb csw3xgtkd5 eed 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 space capsule andy4zk i5dyo/5j82ba v, ynw,xe 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 cap2 5 4y,yxn5w,jveda /yi8 bzoksule. At what speed does the astronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-onlu42l vt5te)ahk1q)f* t bnk7 a large object at rest. The sma bu* )tel7 2kh1q4nv5aflk) ttll object 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 greet your(e ca 6;kf 4oiu*.ip7jkxsb-n /sf9 ypxb+ d/q 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 doa +/p;qk4ys6ni(j7f /fpb k-s9b xiexuc*. together?

  A car of mass 1000 kg mqh3itnc)jbw5m7 vz j,3r /e vgvds40+oves to the right along a level, straight road at a speed of 6.0 m/s. It collides dvjng e35str0)mi3vbq v4,7/djh z wc+irectly 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 stopped car yd z4wa86 j,akthat has a mass of 1500 kg and they stick together. What is the speed oa z,4ajkw dy68f the cars after the collision?

  A railroad freight ca-5k4tb s xat(qe (e+nwr, mass 15,000 kg, is 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 rest and with brakes released. W5(s ax (wtkneqt4b+- ehat is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible 3athe7mm7v9c 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 t7mm hatev 793chis happens?

  A 60-kg person walks on a wuifd ad0je14 x.z64v100-kg log at the rate of 0.80 m/s (with respect to the log). With what speed does the4zjid fwv1e4u0a d6x. log move, with respect to the shore?

  A 4.0-N force acts fe8e5g00 gjk7 4 zke bol8wbly;or 3.0 s on an object. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted by these fye8k ogzlb748e 0le g0wjb;k5orces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg object9 50)cr ocvtfxr31cz jay*il( . What is the object's change of velocity?c)rfi10* r(5cac3l9 y zxovjt

  A 2000-kg car, traveling to the right at 30 m/bv t,c fpc1db8 d+7j2js, collides with a brick wall and comes to re7pdc j+d2t1cvbb j8f ,st in 0.20 s. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched to you atbz9iyt j*t7+fzb n c 25*,dlfe 20 m/s. You hit the ball back along the same path, and at the same speed. Ilif9dnct*7 fj,b e +* ytzb2z5f 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 . .7ifk59vthpqmwjf 6 a table top. The 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 top lasts 0.15 s, what is the magnitude of the average force exerted on the ball by the tabq hfpkvmwi9. 6.jt7f5le top?

  A machine gun, of mass 35.0 kg, fires sr+x89(ylw8i gu ee::. sfmaq 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rateeq+f y:x(u:. lmi8g8we ssr9 a of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on th+ s66a, hs5knkg v7yd0ty v8vke 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 velocity of the stream needed, asvvs6d +6k v87khs gyk0t n,ya5suming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at th6 ksokeq.8; yfyw., nne rate of 120 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up,kon.s8en6kq w.,yyf; what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/.nbvu: g*:sopdr 7vq 4(gu so)s after 3.0 s, when fired strai ssvog(4)qnodpv7ur*ug: :.b ght up. What average thrust force does the rocket engine exert?

  Two astronauts, of m95oklmiwkp2 fk 8(n+aasses 60 kg and 80 kg, are initially at rest in outer space. +(ka8 ok f9kl25wmpni They push each other apart. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right witheuhgi))*y*hi a speed of 2.0 m/s. It collides in a perfectly*))g i*h eyuih 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 collision?

  A 0.10-kg object with a velocity of 0.20 m*y1sri 5skoy1g,qei 2*b r,s f/s in the +x direction makes a head-on s1q2e,s ,igf*yrbi*ok1y sr 5elastic collision with a 0.15 kg object 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+;8 wtzoo 0tbz 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 velocit0w b;oz t8tzo+y of the block right after the collision?

  A proton, of mass m, at rest, is struck head- hz17:wc/ir ii 54ejbbon by an alpha-particle (which consists of 2 protons and 2 neutrons) moving at speed 7: whc ib15b ei4rijz/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 colli*5- z+amo yyvjdes head-on with a stationary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediately after the collision+yoj 5m*v yza-?

A ball of mass 400 g movi* fuh ,uxm8rw5ng toward the east with a speed of 3.70 m/s collides head-on wiu,8 f*ruh5m xwth 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 speed of 5.0 m/s. It co5oofjv8 ,dsa :9j ,yocllides head-on with a 3.0 kg mass at rest. If thj8 s:a,j 5vofoo,cyd 9e collision is perfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving to the eass7 qpt: gc 58)czotp:j-c ci)vt at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How mucp 8c):czq7-)gtvstijp5co :ch kinetic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a parked aklp;oe(5tnq r4 u93; tlfbc /station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initialkrt bo39flen 5/;4cl;p(a tuq kinetic energy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction 8r d3 vcev)d aeuau97;z+jit2 buries itself in a 2.4-kg block of wood a rest directly abe9jv;3ud8e )a vca7tr +duz2iove 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 eax-+oxrd a /xe4c)qj0 tst collides 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 c+0d4)-a toc/rqex j xxollision?

  A 1500-kg car traveling at 9fy,zl16 v td dtii55l*0.0 km/h east collides 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 direction of motion of the cars after collis l,1vtddit 6li 5y*5fzion?

  Two objects move on a level frictionless surface. Object A mo1aaoyu fz4ovlpw, +e(,/,ym y:jcqqb y n.(u8ves 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 theop4ny yue zwb,cy(o, u.q: / 1ly+mavja(8q,fir combined momentum after the collision?

  A small bomb, of mass 10 kg, is moving toward th gxc3uvy -sa31e 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 a3 -cyvg1xsu3 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 = + )jd hhkyg 88o 8h;x8wmjua)6v 21.0 m. Where is the cen ko8yhwxja) j68m;d gvh8u)h8ter of mass on the x-axis?

  The center of mass of a two-particle system is at the w e/ks9gofq42c y*o.rhx9od1origin. One particle is located at (3.0 m, 0) and h *.42 dso9qexy1f9gcrwo ok /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 atyiktdy kn ;w 5w/4ykc(40:nft (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine k5: 40/iftkytyn k wdcnw4;y (the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0v5wcq8vq g(:q , 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m),8 :qcqg(qvv w5 respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1zph 7eklvgu v)fa(d5tp 5 ok,-j)u65 o.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-k5lupe5 ) pjdtogv k-(6, h7o kzf5u)vag 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 r/gbt5sb3qs3 xf/:k3r w *yuoCM of a whole leg including the foot when the leg is stretched straight out. Assume the pe/3ubt33wk / r ys* gqxosf:br5rson is 1.60 m tall.