1. A 30.0 kg blade of a helicopter rotates through a radius of 3 m (axis a). Assuming that the blade is a rectangular thin plate, with length / = 6 m and width w = 0.5 m, calculate the (a) moment of inertia of the blade about an axis passing through its center, and (b) moment of inertia about an axis passing through its edge (axis b). axis a axis b