A ballet dancer spins about a vertical axis at `60 rpm` with arms outstretched. When her arms are folded the angular frequency increases to `90 rpm`. Find the change in her moment of inertia.

A ballet dancer spins about a vertical axis at 60 rpm with arms outstretched. When her arms folded the angular frequency increases to 90 rpm. Find the change in her moment of inertia.

A ballet dancer spins about a vertical axis at 90 rpm with arms outstretched. With her arms folded, the M.I. about the axis of rotation decreases to 75%.Calculate the new rate of revolutions

A ballet dancer spins about a vertical axis at 120 rpm with arms out stretched. With her arms fold the moment of inertia about the axis of rotation decreases by 40% . What is new rate of revolution?

Aballet dancer spins about a vertical axis at 120rpm with arms outstretched. With her arms folded the moment of inertia about the axis of rotation decreases by 40 %. What isnew rate of revolution ?

A ballet dancer spins about a vertical axis at 100 rpm which arms outstretched. With the arms folded, the moment of inertia about the same axis of rotation changes to 80% of its initial value. Calculate the new frequency of rotation.

A ballet dancer spins about a vertical axis at 120 rpm with arms outstretched. With her arms folded, the moment of inertia about the axis of rotation decreases by 40%. Calculate the new rate of rotation.