Critical speed of shaft having a rotating disc in the middle is
A) x/e = 1 / ( r^2 - 1 )
B) x/e = 1 / ( r^2 + 1 )
C) x/e = 1 / ( r^2 - 1^2 )
D) x/e = ( 1 + r) / ( r^2 – 1 )

1 Answer

Answer :

A) x/e = 1 / ( r^2 - 1 )

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