Question

A body having its center of mass at the origin has three of its particle at (a,0,0), (0,a,0), (0,0,a). The moments of inertia of the body about the X and Y axes are 0.20 kg-m² each. The moment of inertia about the Z-axis

(a) is 0.20 kg-m²
(b) 0.40 kg-m²
(c) is 0.20/2 kg-m²
(d) Cannot be deduced with the information.

Answer 1

Answer ⇒ Option (d) . ''Cannot be deduced with the information''.

Explanation ⇒ For finding any of the Quanity on any Information from, the given Conditions, we need to first see the given quuanity or conditions.

If the given conditions are satisfactory then we can deduce the answers by some direct or indirect methods of the Physics. But, if the conditions are not given then we cannot determines that.

Similarly, In the given case, to know the moment of inertia we first need to know the mass and shape of the body. None is available in the problem, thus, we cannot calculate the answer.

Hence, the option (d). is correct.

Hope it helps .