Physics
When the displacement is along the opposite direction of the force, then the work is said to be
- zero
- negative
- positive
- infinite
Work, Energy & Power
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Answer
negative
Reason — When the displacement of the body is in opposite direction i.e., θ = 180°
W = F × S cos 180° and cos 180° = -1
Hence, W = -F × S
Therefore, work is said to be negative.
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