3. Four point masses are joined by light, rigid rods. Calculate the moment of inertia of the system about (a) the y-axis, (b) thex-axis, and (c) the origin (i.e, the z-axis). (d) Is l, = Ix +ly? (e) Evaluate your result in (c) if M = 2m, m = %3D 250.0 g, and a = b = 70 cm. %3!
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