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A circular plate of diameter d is kept in contact with a square plate of edge d as shown in figure (9-Q2). The density of the material and the thickness are sameeverywhere. The centre of mass of the composite system will be(a) inside the circular plate (b) inside the square plate (c) at the point of contact (d) outside the system. |
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Answer» (b) inside the square plate Explanation: The mass of circular plate and the square can be assumed as concentrated at their centers. Hence CoM of the system will be on the line joining their centers. Since the mass of square plate will be more than the circular plate due to the greater area, hence combined CoM will be towards square plate from the middle i.e. inside the square plate. |
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