What is the SI unit of mom v yq;;j./-rt,8z4u gg v:rojt xune.mentum?

  When a cannon fires a cannonball, the cannon will recoil backw8(zzv bfte ,ae0h* uv*ard because the

  A freight car moves along a frictionless le9itm kdz (ehgpyv4h-d 2 r)3.lvel railroad track at constant speed. The ca94 z dhir(ltmd 3.k2gy)h ep-vr is open on top. 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 iy9s t3 zun0l4dce. What happens to thlu0ds3 4tn z9ye velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown.4xqyntg2bt -up j35sdwxb 5-mbpf-( with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to t--txg2bpn .ps u ty4-xqw(5j 5df3mbb he wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you represent its d+*c xl-0vwctzt 9693kt zklxkinetic enzclc t3wk*xxv l96k0 9t-+ztdergy in terms of these two quantities?

  If you pitch a baseball wi:,nw b,c *vmtith twice the kinetic energy you gave it in the previous pitch, the magnitude of its momentumic ,:mbn w*,tv is

State Newton's second la v,w-r cnck (55r,dpnlw in terms of momentum.

State the law of conservation z rd(v7b 8p*vywle11i1dn1f bof momentum.

  The area under the curve on a Force verv mjyxf; em/sy +***wasus time (F vs. t) graph represents

  Which of the following is an accurate td; kxothn koj..47/o6pr io9 statement?

  A small car meshes with a large truck in a head-on 3hy:c8vey)z q ,t hqkeyu-n5 -xw)gy9collision. Which of the following sheyn-3cq,z)9t k v:yyhyqw8x gu)5 -etatements concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one (wsj95v gx e6 mv.ee:vred and the other blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is vgesjmwe6: v (.9evx5subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 mv mq/gp5:;tgxxzl 8/ v/s, collides with a stationary bowling balvl8mx t;5/zgvg/xq: p l. The Ping-Pong ball bounces back 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 offcqdq 2.bra6j z3l2 9ed49bjw z each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It coll.lr+qw b-:epu0e7 c hpides head-on with a 6.0-kg object moving to thq.clpe b: 70-eru hpw+e 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 hac,7xptow 3 r/ nfpc;41qfk-yilfback run;p7q,o cwkfcp xr14-3/fyit nning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, i4jv9 v ,kmac 7szf4uo 2xl-*gqf the momentum is conserved, then which of the following statements is true abo 4vfvu,*kj47cslom2z xa9- q gut kinetic energy?

  When is kinetic energy conserved?z51; w4qqfud w

  In a game of pool, the white cue ball hits the #5 ball and stops, while t cgj.rmf:61nz( g thyfw9(:salx1np0 he #5 bfycr6lza9 tnnfm.0 1gx(j1::h sw g(pall moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach ball rolling with a speed of 6.0 m949k/gmbtb1 u97xm x-j itfen /s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will be, approximatmt9fj9 mubg/4 etkni9b7 - x1xely,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collision wix a ( ,.go12mcciqcj0ywds::yv-u:m i th a stationary bowling ball in a friction-free environment. If the collision is almost perfe yc v::q ,wx io1s(yau2jc:idm0.m -cgctly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides ,sc38an8 ygpj; nuwu4p +w1afhead-on elastically with an identical ball at rest. What is the speed of the i3n4ywfna ; jw ,ppg88+uc1suanitially stopped ball after the collision?

  A very heavy object moving with speed v collides head-on with a very light j;gth m,e n.ppabco; 1v8 s5:eobject at rest. The collision i m a;teh1 ovc;s:b5 j8.,ppegns 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 heavy objec1l.hnzwtu o .m)ez6i8t at rest, in a frictionless environment. The collision is almost perfectluht mzo8i61.. enz w)ly elastic. The speed of the heavy object after the collision is

  A red ball with a velocitg1c+wl csu9ju 9e m2p0y of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collic um9gj1up9 +c 2lw0sesion?

  A very heavy object movix,e ui0sbko y.a (a9h4ng with velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there iisa9o xy,(k haebu0. 4s 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 momentum is cok q fg7lt .+ie oicpm1-4+)uj o(:hdzbnserved, then which of the following pogtmoi+ )bi.e kul 4dhz1j(-q:fc7+ statements is true about kinetic energy?

  Two objects collide and stick together. Kinb a4n52 l(tuq-t1)c8nmbdbgletic energy

  A 3.0-kg object moves to th* pe(ggw0 3ke)l n,guxe right at 4.0 m/s. It collides in a perfectly inelastic collision witekg )ng(gp0 u* 3xe,lwh 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 stick*ol; s hcr 6tq9v8zd)ps. Which object experiences thez 68c9qrh ;ldo v*pst) larger magnitude of momentum change?

  In a game of pool, the white ceby oob )l7d*o9(u+n pue 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. Which of the followinw*lsy ma/qs6 o5cv24t ;xeu 6xg statements is false6 4qu6oyts/ s;mclwax 5*vx2 e?

  Which of the following is a falscoy8li36 yh-ee statement?

  Tightrope walkers walk with a long flexi03n6/ kj qhvesble rod in order to

  A plane, flying horizontally, releases a bomb, which610 n n/e3szbw8gdzop explodes before hitting the ground. Neglecting air resistance, the g36 wsdbnp eo8/znz01center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-free ro2kaymv y ,.v(ot8w;axad. 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 center vakaox;v, w.y(8y2tm of mass?

State Newton's second lv6gfcg jv /r/jh 9/cd-aw for a system of particles.

  What is the momentum of a 2000-kg truck travellqo+0hi b 3 okhf,6kdu3p*:o. xzj9 gzing at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What is the magnitud-mo+ff/htl4k e of its momentumfh4t lm/ +f-ko?

  A ball of mass 0.10 kg is dropped from a height of 12 m.ku70rxs7eu 9p Its momentum when it strikes the grors9 70ukxpe u7und is

  Two identical 1500-kg cars are moving perpendicular to each other. One rf/ x*u9yii2kz hs+0:sqm- by moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is2si iyh:uxk0qsb*9yz-m+ fr/ the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontally at 30 m/s, strikes a w;j z5dlxbaa 18all and rebounds at 24 m/s. What is the l 1xabaz8jd;5change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed of 12 m/s, is struck b;n4h kf jcn0;:,mhjsay a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentuach;:j4n;jkmnf ,0s hm of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen ponyhov l)do* of//q00weolz8, gd y)vw3d. The machine fivleld z0o)/g v yyooh, *ow803/dqf)wres 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 negligible friction.)

  A 70-kg astronaut is space-walking outside the space cay sf m:/v/it+fg,(eiqpsule 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 mov/t/qi vyg f:+m(f,isee toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a /qi/6yj c-n8 ej(dfjs large object at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. yjjf/ 6nei q-c8sj/d( What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to g yx;;6k ueom546bfht w+cl mfu0t2 0bareet your friend (40-kg mass), who is standing still, with open arms. 62t y oxuumefw+50t0 6 b4bak ;cl;fmhAs you collide, while holding each other, with what speed do you both move off together?

  A car of mass 1000 kg moves to the rul, m/lr1z0 9alysb(xight along a level, straight road at a speed of 6.0 m/s. It collides directly with a stopped motorcycle of mass 200 b/xsymz,u9 rla(ll01kg. What is the total momentum after the collision?

  A 1000-kg car traveling at 25 m/s runs c r:ev ccr8v63into the rear of a stopped car that has a mass of 1500 kg and they stic c 83rvec:6rcvk together. What is the speed of the cars after the collision?

  A railroad freight car, mass 1sn l-(bl7i 7(*9dzd3srewzhjz9 pd;r5,000 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, initial7d3bnzje*zrl -r( lis97 9(p;dsdz whly at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls wisoyx 4m 6qe06cth 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 thisxemyc6 64 o0qs happens?

  A 60-kg person walks on a 100-kg log at the rate of 0p-d:ew lue7. z.80 m/s (with respect to the log). W7dl ee u-.wp:zith 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 fo.xnewu p-2m/ jbnokrsoqc i -7):1hi 4rce suddenly increases to 15 N and acts for one more second. What impulse was imparted by these forces to th). x: 7-oihprnmecs1uqo4wj i2 /k -bne object?

  A constant 9.0-N net force acts for 2.0 s on a 6.0-kg ob/(. eyfh,cfdrject. What is the object's.h d(ff,ery c/ change of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, col 7vgzr0)t+zs mlides with a brick wall and comes to rest in 0.20 s. What is the avera0m+g7v zrst z)ge 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 alon p,v f-dj0:ehnnr,. xkg the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magni0k-jnv: , hxrp,def. ntude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table top. The speeds ojm/gt b1 hn1e/:tia/e/f2 nhv f the ball right before and right after hitting the table top are 5.0 m/s and 4.0 /j/hf2:1nae/1 /vmt hb tgniem/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 velocio. 4zfno,,z zmty of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the machine gun mount?,.zz,z4 o ofnm

  A fire hose is turned on the door of a burning building in j1/wqbfx+hl4order 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 th bwjx/q4fh+l1e stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg perqc,eqb if9(mc3m9 .h e minute. It falls 3.20 m to the ground. Assuming the water doesn't smi.c93( qcqm9b,fhe eplash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velociba:yh0l+ hxf 9hs.tc,ty of 40 m/s after 3.0 s, when fired ,ha +lhc: yhxt90.sbfstraight up. What average thrust force does the rocket engine exert?

  Two astronauts, of mas4oa-lwlbdv f k7yv0 ;+ses 60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the lighter av w0l+-v;l4of k7dabystronaut has moved 12 m?

  A 3.0-kg object moves to tf .d,gx5 /7s2oy5iub gj +hy)+xjswf yhe right with a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-y +x2syf5 5u+f xwsh dbi ,)gyj./jg7okg 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. gvoz22n .gpg/n5hp+gtz2a ,o20 m/s in 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 collg htavn2n5/zooz pg+ ,2pg g2.ision?

  A 10.0-g bullet moving at 300 m/s ij*2 vdrd6 -1p/jfmj yas 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 righ*j/rjy-ajdm d v2 f16pt after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particugraab d c,(*o8*zov7le (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 aft,dac*gvab or ou 78(*zer the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a stationary ball ofg,tol 6gv3 sl* mass 100 g. The collision is elastic. What is the speed of each ball immediate3sg l,*gtlo6vly after the collision?

A ball of mass 400 g moving toward the east with aueuaeow b1i7mka/:1 pe4j 6y+ speed of 3.70 m/s collides head-on with a 200 g ball sitting6 u7kjoy e:wa14 u/+aempi1b e 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 speegp oos6b55qxga.x39r d 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 the speed of the masses after the cosrpa3 qg.gx o bo5x965llision?

  A 2.0-kg mass moving to the east at a speed of 4.0 m/s collides head-ofody uughp+*q ) 9s:.sn in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost duri s).uf* u 9:+hsdygoqpng this collision?

  A car of mass m, traveling with a velocity v, strikes a parked stativo:q 1k/9jhr q t/71gztthr d2on wagon, who's mass is 2m. Tqqht gr//2ot17 :zh rdj1 v9kthe bumpers 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 213 m/s in a vertical direction buries itselfm7x4/ ; p8ddapr +ydv94ucwaf*baco49w2nop in a 2.4-kg block of woodwd f99ccopv4+;axm o*bp/w84anar 2 pudy d74 a rest 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 travelij.if)/fz7 fd0zta-h ing at 60.0 km/h south. The two cars stick together aftizf .)-0jfadhi / f7tzer 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-kg car tgh/2d ao9d; 4btq dd2praveling at 60.0 km/h south. The two cars stick together aftb9dpa/;h 4 ogdqdd2t2er 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. Op4 ( .iw:of;tuhsp0rrbject A moves east with a momentum of 24 kgm/s. Obfr pi04.u t( ;ps:howrject B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of massi+lnxf0 mpypvp 8v- /9 10 kg, is moving toward the North with a velocity of 4.0 m/s. It exp9vfn+-8 l x p0i/vpmyplodes 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 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 si f-h u/epnqt mks407nwgy /l8:ts at x = + 21.0 m. Where is theuhk gp :-s47/t q/wfney0 n8lm center of mass on the x-axis?

  The center of mass of a two-particle system is at the origin.u us-fh6(gks4z: sz q61 ot.lwrl,lwxk*r;e, One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the sec*-ful;zwke 4,rgwluss. ,r q: z6txs (6klh1oond mass of 3.0 kg?

  Three masses are positioned as follows: 2.0 kg k+(sr- ckqg x6)0 8(4kbe1ugzjbvonoat (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine the coordinates of the center of mjo(gg) koxz 1e4bq0k6 c+8-(rkbuvnsass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located (pj jv:m0. 9jao-gmns.rkuj0 at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the location of the cj0 :m. .jrja(v 0-mgoju 9nspkenter of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0), and a 1.0-kg mass is pos (o 1poox-r( prz1cth0itioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in thehoo0zp1p r r(xoc 1t(- center of mass of the system of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate*kn*ai bjf su*b .7o9x the position of the CM of a whole leg including the foot whe.*9isxa* 7 oj k*bnbufn the leg is stretched straight out. Assume the person is 1.60 m tall.