Recent content by sergej21

http://img577.imageshack.us/img577/3222/img20120210175721.jpg Cannot find the problem :)

Homework Statement x`=z-y y`=z z`=z-x x(0)=1; y(0)=1; z(0)=1 The Attempt at a Solution Would be glad to know the steps I need to take.

Homework Statement http://img192.imageshack.us/img192/6482/asderl.jpg Find S(t). Homework Equations I managed to find these equations, but don't know how to solve them completely. mx``=Rsinφ my``=Rcosφ-mg xtgφ+y=h x`(0)=0; x(0)=0; y`(0)=0; y(0)=hThe Attempt at a Solution Need to find...