Assertion :The position-time graph of a body moving uniformly in straight line is parallel to position axis Reason: The position-time graph in a non-uniform motion gives constant velocity at all instants of time.

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 D Both Assertion and Reason are incorrect
If the position-time path graph of a body moving uniformly in a straight line is parallel to position axis, it means that the position of body is changing with constant time, which is absurd and shows that the velocity of the body is infinite.

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