A ballet dancer spins about a vertical axis at 60 rpm with his arms closed. Now he stretches his arms such that M.I increases by 50%. The new speed of revolution is

A ballet dancer spins about a vertical axis at 60 rpm with his arms cl

1.	A ballet dancer spins about a vertical axis at 60 rpm with his arms closed. Now he stretches his arms such that M.I increases by 50%. The new speed of revolution is
Answer» 80 RPM 40 rpm 90 rpm 30 rpm ANSWER :B