1.

Assertion: Always |(dvecv)/(dt)|=d/(dt)|vecv| , where vecv has its usual meaning. (Reason): Acceleration is rate of change of velocity.

Answer»

Both (ASSERTION) and (REASON) are TRUE and (Reason) is the CORRECT EXPLANATION of (Assertion)
Both (Assertion) and (Reason) are true and (Reason) is not the correct explanation of (Assertion)
(Assertion) is true but (Reason) is false
(Assertion) is false but (Reason) is true

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