Assertion: Acceleration of a moving body is always positive. Reason: The rate of change of velocity of a moving body is called its acceleration. (a) Both A and R are true and R is correct explanation of the assertion. (b) Both A and R are true but R is not the correct explanation of the assertion. (c) A is true but R is false. (d) A is false but R is true.
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Reason- Acceleration of a moving body is equal to product of change in velocity and time interval. (e) The rate of change in velocity of a moving body is called its acceleration. Acceleration may be positive, negative or zero. Hence, Assertion and Reason both are false.
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