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Statement-1: Friction is necessary for a body to roll purely on a level horizontal ground. Statement-2: When the body is rolling purely, the velocity of the point of contact should be zero relative to the surface in contact.A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.C. Statement-1 is true, statement-2 is false.D. Statement -1 is false, statement -2 is true. |
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Answer» Correct Answer - D No, friction only act when there is tendency to slepe |
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