Assertion :The time of ascent for a body projected to move up a rough inclined plane is less than the time of descent Reason: The retardation for upward motion is more than the acceleration for down motion

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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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
While moving up: the opposing forces are gravity + friction
While moving down: it is only friction and also gravity is supporting force.
Friction is same in both the cases.
So, The time of ascent for a body projected to move up a rough inclined plane is less than the time of decent as it receives more retardation.

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