What is the SI unit of 6grwe 9 2nqs/amomentum?

  When a cannon fires a cannonball, the cannon will recoil bac1rx-kaz7(p* jfce ;wbz( /hpt kward because the

  A freight car moves ald. w ea/*j,qjqwo1tphuc 4 k;9ong a frictionless level railroad track at constant speed. The car is open on top. A large load of coal is suddenly91 qup,;c4jek.dawqw/ t o*jh dumped into the car. What happens to the velocity of the car?

  A child falls sideways off a sled while slergox10k +lg* (dc4/zu+c, ht )aj kqgjdding on frictionless ice. What happens to the velocity of t0+ g *lqhkz+ c/ro jg4x)t,u(cgkjda1 he sled?

  A rubber ball and a lump of putty have equal ./vlfo h 1p2hpmass. 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 exfp hhl2 p.vo1/periences the greater momentum change?

  A sailboat of mass m is moving with a momentuml twc9)(tso yvz ,*4nx p. How would you represent its kinetic energy i c4xn z vst*)y9t,low(n terms of these two quantities?

  If you pitch a baseball with twice the kinetic energy you gb/elj d(e220hm pa c1wave it in the previous pitch, the magnitude of c2 e0bhl daw1/2ep(mjits momentum is

State Newton's second law in terms of momenrqb vj5njir,, .9l+u8 5 aybdntum.

State the law of conservation of momeulr0 yu e1c*l:ntum.

  The area under the curve on a For8b un hxb)(rr5r.h dq zp6p;4nce versus time (F vs. t) graph represents

  Which of the following is anz v 4 o,2.nvblj4:4a2n dm6zgulbo3;2hnsv ab accurate statement?

  A small car meshes with a n+k8*xqe4bs 9utqs4rwr .,xtlarge truck in a head-on collision. Which of the following statements concerning the magnitude of the avera,xnw+xs k*qes.4 rtb8t4qu r9ge collision force is correct?

  Two equal mass balls (one red and the othni i7 (x 1 vcb;w3ta2rolu/*gner blue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Whw i/(b*cr1ivun; 7 2n3gtlaoxich ball is subjected to the greater magnitude of impulse during its collision with the floor?

  A Ping-Pong ball movingz agnmx)i8k 3/ east at a speed of 4 m/s, collides with a stationary bowling bzk) gxma8/3n iall. 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 off e (-p ..uriutd6 uef5uc aza6.rach other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6 (z fnx5:sdv-y.0-kg object moving to the left at 2.0 m/s. Which statement is cord -snzxyv :5f(rect?

  A 100-kg football linebacker c 3*6sjgc6qney6-.b vvv09. aee5tun0o lytkmoving at 2.0 m/s tackles head-on an 80-kg halfback runnin50ys6vto*9kv663 0lceu v.ajye.q b-t necngg
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, if the momentkuigces kc7ix:-12n) -f)db4( telchum is conserved, then which of the following statemn)th):ki s lek4-f - cie7dug(2cxb1c ents is true about kinetic energy?

  When is kinetic energy corxp (rc3 /atrpv3590n68/dc bqzezdu nserved?

  In a game of pool, the white cue ball hits the #5 a77qg5 ie54dd6hdnf 6acpo3x ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. dp7563ac7f6d4e ah5d og inx qThe type of collision is

  When a light beach ball rolling wite;sy tpd( njh4*t.n ,fh a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's sp*tyspd(h ; ,e4ntnj.f eed after the collision will be, approximately,

  A golf ball traveling 3.0 m/s to the right coll:lyo .lm4rg ,tgr +:evides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost perfectly elastic, the speed of the goly:g,gtr.l: rmov 4+lef ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/35mun3i cwyja 6h1+hl s collides head-on elastically with an identical ball at rest. What is the speed of the initiall6cay hm3n51l3h+ ji uwy stopped ball after the collision?

  A very heavy object moving with speed v collides head-oc-gsp +l2k ;fp gn1;xnn with a very light object at rest. The collision is elastic, apgk -;+2gnclxn 1f;psnd 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 spe u5t,x:bevas/h bg*q(zr cb 0qd3z;2yed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the h *v qqc/bax,s3ebuy dz2 :g(bz;5trh0eavy object after the collision is

  A red ball with a velocity ougtzk ls01l96fbzy/u l o,1v9f +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.ozv906 1ybls/lg u,zut1 9 lfk0 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 veryl ig3y9x04bb k 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 the light object af4i90bk b 3yxlgter the collision?

  In an inelastic collision, if the momentum is conserved, tbscidlcgoo34 49p58dq:ipy j 9 wp d*+hen which of the following statemenp j 4bpl*q4cgi 8dc9dd 9:iy p53+oswots is true about kinetic energy?

  Two objects collide and stick together. Kinetic 70l3(spgl n p. lp/tsoenergy

  A 3.0-kg object moves to the right at 4.0 m/s. It collide 9y4+hiah ;yges in a perfectly inelastic c+a;e9h y4ighyollision 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 o wjw-jvqah785 0af 1bqbject experiences the larger magnit-h v85f w0aqjjq7 ab1wude of momentum change?

  In a game of pool, the white cue ball hi,ztrunja+3 2lbri*:i,b s* l w*ck,psts 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 fol zsb g72lyw yp8xb6e:(lowing statements is falsyl e(ps2 y8zb bxw7:g6e?

  Which of the following is a false statemekhgf8s1 ucv2k8 h51/h bflx +cv qy2t,;p1rru nt?

  Tightrope walkers walk with a long flexible rod g mw jbcy yat. 3pz19aj8nr20)k6y 7oain order to

  A plane, flying hori 4t tktg3hffb4a4e/v2y5*ee3 zsbc 4fzontally, releases a bomb, which explodes before hitting the ground. Neglecting airzes tkhy3e 3 vf2bffbe/t*54gc4a4t 4 resistance, the center of mass of the bomb fragments, just after the explosion

  Two cars collide head-on on a level friction-5gn7lsz4 i( nq8 dmzk9free road. The collision was completely inelasticd8sikg5qlm(7 z9zn 4 n 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 particl dm4 7d 1; )4sl vz4evugihwm,hxnxv65es.

  What is the momentum of a, 1 :wimrtx3bq 2000-kg truck traveling at 35 m/s?

  A 1200-kg ferryboat is movin0jdh1aq :jy. cdyr 6i7g south at 20 m/s. What is the magnitude of its momentum? j1a:cdiyjry67 q.dh0

  A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentumu +sga- j ejg/ni1v;xo.6)v sw when it str.;6j)augxsv-os+1igv w e/ jnikes the ground is

  Two identical 1500-kg cars are mom c1h6mlfl a k1zow372ving perpendicular to each other. One moves with a speed of 25 m/s due north and the othlzaflwo2m1 6 km3 h1c7er moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 kg, traveling horizontkj,i :2zrbt3cally at 30 m/s, strikes a wall and rebounds at 24 m/s. What is the change in the mc2bjk3: irz, tomentum of the ball?

  A 0.060-kg tennis ball, initially moving at a speed -cmpoyd//l6aof 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/sdoa cpym //6l-. What is the change in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on ao02wo uqrtv - 7vg/0ja frozen pond. The machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil0t70w vr2 uov-o /ajqg speed of the pitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is stationy5 *tl20hs)9 gx bm:huzmba12 pc wv2sary when the tether line breaks. As a means of returnhh lm2*gy1vc z59wb20)uxsm bta2s:ping 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)d q 2c ofl fidqr:k6o56i1bg.ject at rest. The small object bounces straight back with a momentum of magnitude 16icb6 .2f ofko:gqdl5 qi)rd4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice-s ,vrasby5h4 at 4.0 m/s to greet your friend (40-kg mass), who is 4-ssar yb,hv5 standing still, with open arms. As you collide, 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 s (ntj(2ugmm5f .o.(is tblpt6peed of 6.0 m/s. It collides direcm.bui(tfspj t (l(o5n2g 6mt.tly 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 runsdexo ,arnt2y pxb8j0 w6( um*) into the rear of a stopped car that has a mass of 1500 kg and they stick 6oe (jx,0 ydt8)am2 n bprx*wutogether. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is, n wkdkmfsc g* z-z4)8nj3)+cmi0nr mh* y0vx allowed to coast along a level track at a speed of 2.0 m/s.d) y x0mc 08m)zs*,3*jzi hnrvcfgkkm-4 n n+w It collides and couples with a 50,000-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 kg, rolls with negligible friction onzn94bs;w+ z g2shm 2sy 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 i+24 b;snyzh2wssz 9mgn 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 p)h(h hcyjb(5 m/s (with respect to the log). With what speed does the log move, with respect t chhbyh 5((jp)o the shore?

  A 4.0-N force acts for 3.0 s on an obji d9si 38(kdtject. The force suddenly increases to 15 N and acts for one more second. What impulse was imparted8d3ki (id9 tsj by these forces to the object?

  A constant 9.0-N net force acts for 2.0 s on a 69ok y /v7p7jrx:s)dw e.0-kg object. What is the object's cw9rjo 7k/e)7: svdxyp hange of velocity?

  A 2000-kg car, traveling to the right at 30 midn((vqn2 xt b. 4/audcay43j/s, collides with a brick wall and comes to renca4i .jb /t32a 4 xu((vyqdndst in 0.20 s. What 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 alon,kjw q* gu,qigc+-x/r g the same path, and at the same speed. If the bat was in contact with the u,g,kqc/ - rg*ij+xqw 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. The speeds of the ball right beforejr 3k7;c,lkt v0 kc+6tf;uuev and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. ct;7krvfvk;lu3 u6c0, k ejt+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,zkwpan4d42m 8 with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force 4z8 k pd4m2wanexerted on the machine gun mount?

  A fire hose is turned on the door of a burcssh xsqa.f,(ij+;q /ning 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 the water doesn'ta ssshf/ (.q,qij+xc ; bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg pepp4,nflv8htw - 4yu 7hyqe, x7r minute. It falls 3.20 m to the ground. Assuming the water doesn't splash up, what average force does it exert on the ground?,w , eqvy-h4hu 7ltp8ny7f4x p

  A toy rocket, of mass 0.12 k d- (oimtdc)j/g, achieves a velocity of 40 m/s after 3.0 s, when fired straight up. What average thrust force does the rocket engi )-tomd(d/cjine exert?

  Two astronauts, of masses 60 kg and 80 kg, are initially at rest in outer sp nvnvbwup 6k4r-f;l9; ace. They push each other apartr;wp;u6 n-vkn9v lbf4. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right wkq8yec0, ro+zuuzp)wxmyi c9,d 6 /3yith a speed of 2.0 m/s. It collides in a perfectly elastic collision with a 6.0-kg object moving ty3z)uk0 q/,,ceyo6xy9z m 8uri c pd+wo the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a vee.1 cu ecq:n9nlocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What ue.e1nc9qc:n is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300oyhi 9bc3vw4d1;1wx i m/s 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 to; vhx13 y1bw w9ic4dihe velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (whicz1uj3 rv6* 0:6y i9 w9rupnfbe n.vxquh 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? 6eur ux:nu16vb3fz.09 yrwpj i9v*n q(Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides he :4q mg.ppn,vxad-on with a stationary ball of mass 100 g. np: .4p gxq,vmThe collision is elastic. What is the 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/s coll )2b i5.mfa gu*dl1crkides head-on with a 205laub *mi) 12kdf rc.g0 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 collidesi(xbrvsjs +uqvg2989g ; . dzs head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed driq2b8sj +vxgz9u s(9 ;vgs.of the masses after the collision?

  A 2.0-kg mass moving to the east + vdt4pf4is)k 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 kinetic energy is lost during this cots+) vkpdi f44llision?

  A car of mass m, traveling with a velocity v, strikes a parked station wagon,9myak:ctoy2b6dx *ua8yb lm5- 7u )be who's mass is 2m. The bumpers lock together in theu-xut7* ylao : d k b)b9856yymm2bacis 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 buries9f zpy b0l;1jz itself in a 2.4-kg block of wood apz z;bfl9yj01 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 t0*mk5evcx4nzv0 ;sw.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars sticez ktn c v*5wm0x0sv;4k together after the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.hh q sy, 4lf348hk.oc +cp) u)9ssjmwe0 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.c+jses qp foyu.h 4k9h,48 w)sc3ml) h 7-1.) What is the direction of motion of the cars after collision?

  Two objects move on a level frictionfxpk(.; b fv 7mmuwfk.s6m:9h less surface. Object A moves east with a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They mf:k7( fsb mwkhxm.v9mf;p u.6ake a perfectly inelastic collision. What is the magnitude of their combined momentum after the collision?

  A small bomb, of massmx95b ju n b; r,4exv-t,;zkwn 10 kg, is moving toward the North with a velocity of 4.0 m/s. It explodes into x9 u -bnw k;54z,nj,vemr txb;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 sits at x = + 21.0 m. Wher1s5o4kk q1ljte is the ce1tj q514oks lknter of mass on the x-axis?

  The center of mass of a p4y+ax: c/nt rtwo-particle system is at the origin. One particle is located at (3.0 m, 0) and has a massa:y cnpt4/x+ r 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 at (0, 0), 2.0 kg at: a v yy63p+6 mzb-jkykd,7jmjls m.2a (2.0, 0), and 4.0 kg at (2.0, 1.0). Determine t y+7j, plakm a3yj.6vz:b-6d mj kys2mhe coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 *k 3.0mkglapp eoa 6(dg1qog8 kg, and 3.0 kg, are located at (0, 0), (1.0 m, 1.0 m), and (2.0 m, -2.0 m), respectively. What is the loca k( q0 agapelk6odo8 1gpm*3g.tion of the center of mass of the system?

  A 3.0-kg mass is positioned at (0, 8.0),yi7xd ;s 74ejt and 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 is;7jx4 ye 7tdof three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calcuddul8k 97rt dbh5 9c)ujks0dmd 7rd8)late the position of the CM of a whole leg including the foot when the leg is stretched straight out. Assume the person is 1.65m7) jcl8kd07rd8 h)9krdududbs dt90 m tall.