Assertion :A body can have acceleration even if its velocity is zero at a given instant of time. Reason: A body is momentarily at rest when it reverse its direction of motion.
A
Both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
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B
Both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.
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C
Assertion is true, but the Reason is false.
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D
Assertion is false, but the Reason is true.
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Solution
The correct option is A Both Assertion and Reason are true and the Reason is correct explanation of the Assertion. For eg: When a ball is released from point A1 it strikes B on ground. During the moment instantaneous velocity, d→vdt=0 but a constant acceleration due to gravity acts continuously (→g) downwards.