Physics
Assertion (A) : Acceleration of a moving body is always positive.
Reason (R) : Acceleration is the rate of change of velocity with time.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Motion in One Dimension
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Answer
assertion is false but reason is true
Explanation
Assertion (A) is false because acceleration can be positive, negative (retardation), or zero depending on whether the velocity is increasing, decreasing, or constant.
Reason (R) is true because acceleration of a body is given by :
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