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Question
Statement-1: A rigid disc rolls without slipping on a fixed rough horizontal surface with uniform angular velocity. Then the acceleration of lowest point on the disc is zero.
Statement-2: For a rigid disc rolling without slipping on a fixed rough horizontal surface, the velocity of the lowest point on the disc is always zero.
Statement-1: A rigid disc rolls without slipping on a fixed rough horizontal surface with uniform angular velocity. Then the acceleration of lowest point on the disc is zero.
Statement-2: For a rigid disc rolling without slipping on a fixed rough horizontal surface, the velocity of the lowest point on the disc is always zero.
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Solution
The correct option is B Statement-1 is false, statement 2 is true.
Every point on the rolling body has a component of linear acceleration. The lowest point is the instantaneous axis of rotation with zero velocity but has an acceleration. Thus statement-1 is false.
Every point on the rolling body has a component of linear acceleration. The lowest point is the instantaneous axis of rotation with zero velocity but has an acceleration. Thus statement-1 is false.
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