NEET Physics Work Done by Forces Assertion Reason Question
Assertion (A): The work done by the frictional force on a moving body can be negative.
Reason (R): Work done by a force is a scalar quantity and can be positive or negative.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Correct Answer
Detailed Explanation
The NCERT context states that work done is a scalar quantity and can be positive or negative, with frictional force specifically noted as causing negative work.
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