Question

Why is the work done by a body said to
negative?​

Answer 1

Heyy Mate Here Is ur Answer....

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.Work done by the system or body is negative. ... Work done by a person to lower a weight vertically downward is negative because work is obtained. Work done by the system or body is zero if the displacement of body in the direction of force is zero (i.e. ) or the magnitude of force is zero.

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Answer 2

Answer:

Explanation: it's not always negative it's depend upon the theta between the force and displacement if the angle between force and displacement is zero then the work done will be positive and if it will be 90

Degree it will be negative and if the force and displacement are in opposite direction it means if the angle between them is 180 degree then it will be negative