Deriving equation 2.27 from Goldstein's Classical Mechanics

[merrypark3]

Please derive equation 2.27 in Goldstein(3rd ed.)

 

[physicsman2]

Please derive equation 2.27 in Goldstein(3rd ed.)

And how do we know what we're supposed to derive if you haven't given us anything except a location no one will find. You should at least try to derive the equation first.

 

[masqau]

and please at lest post the equation...