What is the SI unit of moment9p 1rlk/xg* ,7yromw rum?

  When a cannon fires a cannonball, the cannon will recoil backward because xmv((r8hb fp m 4yg)9ihs9k9lthe

  A freight car moves along a frictionless level railroad track at constant speed.qlw).t -d8.hdkt( mp3jst7n d The cp.-) 8ldnsd(.3tqh7kjdmw tt ar 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 rel-j.)jeteqcx bn,) +jb/ 7p sled while sledding on frictionless ice. What happensb)nb te.cpe ej)7 jl, qrj+/x- to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with eqlbcgz9--6i3s(0w mpg7rzox g ual speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to txpcsr zl39igg7(bm6o -0-zg whe wall. Which objects experiences the greater momentum change?

  A sailboat of mass m is moving with a momentuj 5xb of:ga8:gm p. How would you represent its kinetic energy in terms of the:: 5g jxbga8fose two quantities?

  If you pitch a baseball with twice the kinetic energy you gave :tfzl33 :wm):r cmulkit in the previous pit 3ml3zfk:u)rm clw::tch, the magnitude of its momentum is

State Newton's second law in terms of momentu3 zuahk9o2u5/3i ezfem.

State the law of conser pj un4m4+ac8m ejo+atk0rhjz;,se-fu94o ) qvation of momentum.

  The area under the curve on a Force vers kvq//+ eoweh.us time (F vs. t) graph represents

  Which of the following is an axoqu:n1oc5xb 21 +sliccurate statement?

  A small car meshes with a large truck in a head-on co;dl8j jot51xwcs5l .kllision. Which of the following stateme k cd5jj5x8l;.t1lwosnts concerning the magnitude of the average collision force is correct?

  Two equal mass balls (one red and the other blue) are dropped from the+zx*tbxu*) )+l ifsgaygy 9,x same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the xf,s **y 9)z)u+i+xatxb g glygreater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball moving east at a speed of 4 m/s, collidexxsl54df0xfe5ty./ i kb 4b *ss with a stationary bowling ball. 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 ixf05 x4sblxe.bi dy s f4tk*5/mpulse during the collision?

  Two objects collide and o:6r; 8 dk70tn att.uwzban0 ei6nwy .bounce off each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. os(,a1n l10lnzkq6 ,anixcl- It collides head-on with a 6.0-kg object moving tonn,z-oql6,l 0inlkac a x(11s 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 halfngu8 v n pb-5(dxnk2c4ljs:5kback runn8:(jxvb 2 -g4ndsp5k5klnu cning
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision,198*djxok 9u8k igab,tncyq * 0ich( n if the momentum is conserved, then which of the followijn *h9 q,ki8o*x g8cdn9abu0 y (1ikctng statements is true about kinetic energy?

  When is kinetic energy consb99- xk s-tvoeerved?

  In a game of pool, the white cue ball hits the #5 ball and stops, while thatl f.:: t0;o(b rgztte #5 ball moves away with the s tlzb.gt f 0a:rt(;o:tame velocity as the cue ball had originally. The type of collision is

  When a light beach ball rollipem.d 3pz1c;ads 0f1nng with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after tczsap;epd 0fdn.131 m he collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right collides in a head-on collispy-k.n o e 3uj540vvvsion with a stationary bowling ball in a friction-freu3v50svp vj. k4oe-ny e 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 hea;.--o 84l jv hugytth :.ytjild-on elastically with an identical ball at rest. What is the speed of the initially stoppe gt iyththj8o.-;l -:4yju.vld ball after the collision?

  A very heavy object moving with speedol dej.,cc4 u 2)yl j/fio+z1i v collides head-on with a very light object at rest. The collisiolcl ofoj jd+ i,cu41 ez2./iy)n 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, a +oyv6)rv:fomd +wy-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic+va6 do+)mywvfy, o r:. The speed of the heavy object after the collision is

  A red ball with a velocity of +3.0 m/s collides head-on -c0b3+awuyy gh3uq9e,oxn 2q7 j kr1mwith a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball a9oqg1+kuwxyh n-a2 mj3yqc 3r7 b0eu,fter the collision?

  A very heavy object movie,6wt( w5p/v *sujes:1rdlit ng with velocity v collides head-on with a very light object moving with velocity -v. The collisi uld1vre*iw,5je/ :s6st wtp(on is elastic, and there is 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 conserved, thenwzs8nv 9wgl w;e() fhhm *;)kk which of the following statements is true about kinetic v 9h h8 *;kf(mwzglsew))k;w nenergy?

  Two objects collide and stick together. Kolofew+ psn92e )1 ycqe,fvm v/o+ds*5n: 2lwinetic energy

  A 3.0-kg object moves to the right at vgbnv 7 .kjjiqoef( ;:5rh2.t4.0 m/s. It collides in a perfectly inelastic co (v;g.5e qkbfotni2 hj:r.v7j llision 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 obwy(hkix1 ,k j.h9cgt 4ject and sticks. Which object experiences the larger magnitude of momentum cg9 h,xkiytj w.hc(k1 4hange?

  In a game of pool, the white cue ball hits the #lw.1f: tq x:pi9 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 following statemw87( tx rh;nruents is false w8h(u 7;tnrrx?

  Which of the following is a false3wjx-mzyt2 fvg i k/:+ statement?

  Tightrope walkers walk with a long flexible ropo1l:df r e jcqv+g00,d in order to

  A plane, flying horizontally, releases a bomb, which explodes before hittizbg-me n+a+ n 5p)5xsyr rp:a/ng the ground. Neglecting air resistance, the center of mass of the bomb fragmm/ rayg+na: x r+snb)e-5z5pp ents, just after the explosion

  Two cars collide head-on on a level friction-free road. The collisionigdn38yhfn+ vw a81 y7 was completelyha7gfw1 y88n dn+i3vy 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 olg o*ge)3( .l; mlx*wr,q-hufz0vj w law for a system of particles.

  What is the momentum of a 2000-kg truck travelingp5 bk2wd7*v mv at 35 m/s?

  A 1200-kg ferryboat is moving south at 20 mm nc05jv2xgm; /s. What is the magnitude of its momentum?g ;njmxvmc0 25

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum e7jfi vl(p5o, when it strikei ,e5v(p7l ofjs the ground is

  Two identical 1500-kg cars are moving perpendicular to g *bsn*uy7o3feach other. One moves with a speed of 25 m/s due north and the other moves at 15 mu 7f3n*os*gb y/s due east. What is the total momentum of the system?

  A handball of mass 0)nnn09.z(kl z2c7 6 zdvck( qy*khdun .10 kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the momentum of thdy zch2k(.dnl6 ck zk9 (07n nv)quz*ne ball?

  A 0.060-kg tennis ball, initially moving at a speed of bp4) zi0uqv4 9uh qvbro8c./v 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed o 4qqrh / u40i9v8v.o)pbbczvuf 18 m/s. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a fro/qh -r9s hxdqps *o-x).bqh1cmihf1*zen 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 p**cpbhr9-hdq-/s1x oxs fiq.1 h) qmhitching machine? (Assume negligible friction.)

  A 70-kg astronaut is spa --b kec3wzhq-ce-walking outside the space capsule and is stationary when the tether ck-q wze-b-h3 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?

  A small object with momentum 5.0 kgm/s approaches head-on a large ob a;ihy7bd xh69ject at rest. The small object bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large objeh7b9;id a6y xhct's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet your ,k09p5174 spt(vphlhd zk tzy 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 together9kh5zt 14hz(py7s,tpp v dlk 0?

  A car of mass 1000 kg moves to the right along a d- di)xp(k ni,level, straight road at a speed of 6.0 m/s. It collides directly wix kdid() p,n-ith 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 lf;8c3i zl 8wdthat has a mass of 1500 kg and they sti3cl8i z8d fwl;ck together. What is the speed of the cars after the collision?

  A railroad freight car, ma 7gj7en)n hmp-b1gka* ss 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 releasednng a )17j-e 7*bkmhgp. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kg, rolls with negligible fricti)t9sg vif0 sn5n(szk o /ku.s*on on a horizontal track with a speed of 10 skt vg/sfso(u9*kiz05s.n) nm/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-kg log at the rate of 0.80 m/s (witdqtq vp*r(7sblkr.-9; dx ; tkh respect to the log). With what speed does the log move, sq(b dr q;drl;- *k7ktvxt.9pwith respect to the shore?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases.5( thejq0bozty8n- l to 15 N and acts for one more secony jtb0nz 8eq-o5lht (.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. What is thuv1/cji lm1wo4ujbr l6*p5 r2e object's cha m2jl5pw*bvu1 rjri c61l4o/unge of velocity?

  A 2000-kg car, traveling to the right at 30 m/s, collides with a brh/ yoqj ( e9n1.5 yoxm3owtxx8ick wall and comes to rest in 0.20 so1 o (y3xh5.texjq9x 8nyomw /. What is the average force the car exerts on the wall?

  A 2.0-kg softball is pitched totf3sq 9 7aw+e ayq)(gx you at 20 m/s. You hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the magnitude of the average force the aq9x g+fe7y s)3tw(a qbat exerted?

  A 0.10-kg ball is droppe7b m2 4qq u-+ ejg+gsoohimlr3a/g (s8d onto 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 3o 4g7ruq ohmlj+ g8g(qe2ab+-sm/ isthe table top?

  A machine gun, of mass 35.0 kg, fires 50.0-gram bullets, wita4a +)ygux(pxh a muzzle velocity of 750 m/s, at the rax4u g(yax) +pate of 300 rounds per minute. What is the average force exerted on the machine gun mount?

  A fire hose is turned on the door of lillnsj w55 5l3gp :y2 7lc 6na,x3ptoa 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, assuming 33lo55ynt,ppglnlc27w6 :xis jlla 5 the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 123t)oq) 0 ds06lhkiyh tx8n7f r0 kg per minute. It falls 3.20 m to the ground. Assuming the water doesn'tli h0k3ho8n rdqsf) t)x0yt67 splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg,pjj iy p8dk(t9z -1abf 9g(z(o zn22vh achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust f-njp9z1d 8v(fz oka(2 zi9gbtpy (jh2 orce does the rocket engine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outbxvfk uz8*fs lzv/l5a.s 0(6 yer space. They push each other apart. What is their separation after the lighter astronaut has moved z*vlf8f subv/(5akzs0 6 xly. 12 m?

  A 3.0-kg object moves to the right with migz cr326a 3ka 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 after the colliazi kr3 36g2mcsion?

  A 0.10-kg object with a velocity of 0.20 m/sn2iel hd3n8(7c g w/)zrwi1ox 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 collisi w nhxwo l()dr i71ngc2e38z/ion?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. The 2cg s .fbcrixzb o;dz-j7** 9o7vq,dv bullet emerges (the bullet does not get embedded in the blocf-2vobovb 7*ccq,*d zig j;xd.9z7 rsk) with half of its original speed. What is the velocity of the block right after the collision?

  A proton, of mass m, at rest, it2mamb 5-))jbcnp tf uw :fb48s 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 after the collision? (Assume f5mbmj )tbn4 t fuwcbp-)8a:2 the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-one8s8 -+s dv mkhn,t.t(d6pq fr with a stationary ball of mass 100 g. The collision is elat8qsdvh(e m k-8f+sp,nt rd.6stic. What is the speed of each ball immediately after the collision?

A ball of mass 400 g moving vz*n/:j h q,q* 8aueqhtoward the east with a speed of 3.70 m/s collides head-on with a 200 g ball sitting at rest. The collision is perfectly elhze,u*q 8 anqh:jv /q*astic.
(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 ofwrjg dnhzzhxm:k , kk2*2 t+q6bz146g+1o bap 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is rqag 4t26kb6whop z*+ b ,mk1j2nd+ hz x1g:kzperfectly inelastic, what is the speed of the masses after the collision?

  A 2.0-kg mass moving tomhfo 9mo1c 6h t:o hp2:g5z3qt0q; ogv the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kineo o3z6 :gqomg 2:q; htmhvf 0hp91t5cotic energy is lost during this collision?

  A car of mass m, traveling with a velocity v, strikes a park/yfr z6zf m3d6ed station wagon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic ez/frdf z63 6mynergy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical 9o:r5q* y1gc6bhoh qgdirection buries itself in a 2.4-kg block g h bc56go o:r9hq1qy*of wood 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 travelinwezj u7q ezx1/ghl8 t7ta0fpu-wbj/( mn-) ;ng at 60.0)u tzewp-7xl 7bj8/(mfuq0/w1n;j -tn zeahg km/h south. The two cars stick together after 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-kgrao, hlq0cr 8, car traveling at 60.0 km/h south. The two cl, or ,08qahrcars 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 p(qc 9dzx3g.h frictionless surface. Object A moves east with a momentum of 24 kgm/sqz h pg9c3(.dx. 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 collision?

  A small bomb, of mass 10 kg, is moving toward the Nortnuqw.beeb3b-nhw-,gw4u )*c ws-g; x h 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 speed of 10 m/s; and a third fragment with a maw3e hb*;c-wnuxwbgn -gw)uq4s .- ,bess 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. up,4 ekger :*:kt(jrwWhere is :eujk,r*(keg p:4 wtrthe center of mass on the x-axis?

  The center of mass of iv 9s420v nq e-aty8.wpjcpt6a 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 mass of t8e n -w0.qt9vj2cppi6ysv 4a3.0 kg?

  Three masses are positioned as follows: 2.0 kg at (0, 0), 2.0 kg at (2.0,7) hxchme+n6 : pep8xo 0), and 4.0 kg at (2.0, e:hpm68 xxn) hco+ep71.0). Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are n-e x(mf y4*tsjslik7)l(t;f6hm)h z located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respelm sslxh-)ye ((t4 *t7kn hfm);zf6ijctively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0),. tfk 02w lfvz;kuqxa/-df24b and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will resulf/vf ;b-04zlka d2wk.q2 fx utt 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 gm zb7:)-yu fgcnxpr*ey0u- /of a whole leg including the foot when the leg is stre-gyzgefm b70:c xr )u/y-npu *tched straight out. Assume the person is 1.60 m tall.