00402    a2200169   4500041000900000082001500009100001300024245004200037260005300079300001800132650001700150650001300167650001200180650001500192650001300207653001200220  aEng.  a531bT174t  aTarg, S.  aTheoretical Mechanics: a short course  aMoscowbForeign Languages Publishing Housecn.d.  a421p.billus.  aForce system  aFriction  aGravity  aRigit body  aDynamics  aPhysics