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Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
हिन्दीGiven below are two statements: Statement I: The centre of gravity of an irregularly shaped thin flat lamina must always lie strictly within the physical boundary of its material. Statement II: The principle of moments for a lever is strictly valid only when the parallel forces applied are perpendicular to the lever, and becomes invalid if the forces act at an angle to the lever. In the light of the above statements, choose the most appropriate answer from the options given below:
Correct answer · Option 2
Both Statement I and Statement II are incorrect.
Explanation
Statement I is incorrect (e.g., ring has CG outside material). Statement II is incorrect because the principle of moments holds even when parallel forces act at an inclined angle to the lever.
