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Question
Read each statement below carefully, and state, with reasons, if it is true or false;
During rolling, the force of friction acts in the same direction as the direction of motion of the CM of the body
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Solution
False
The frictional force acts opposite to the direction of motion of the centre of mass of a body. In the case of rolling, the direction of motion of the centre of mass is backward. Hence, the frictional force acts in the forward direction.
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