When do we say work done by force is positive and negative?
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Explanation:
When the work done is in the direction of force then it is positive and when the work done is opposite to the direction of force then it is negative .
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2
Answer:
Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. If the force has a component in the direction opposite to the displacement, the force does negative work.
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