Assertion :The value of dynamic friction is less than the limiting friction. Reason: Once the motion has started, the inertia of rest has been overcome.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Static friction causes the body to stay in rest. Limiting friction is the maximum value of static friction. Once the motion starts, dynamic friction acts which is less than the static friction, as the body has already overcome inertia of rest.
Hence, assertion and reason both are correct and reason is the correct explanation of assertion.

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