Question

Work done by a body is

• A. always positive
• B. negative, positive or zero
• C. always negative
• D. always zero

Answer 1

The correct option is B

negative, positive or zero

The work done by a body can be negative when the force acts opposite to the direction of displacement. It is positive otherwise. Also, if the force acts perpendicular to the direction of motion, or if the displacement of the object is zero, then work done is zero.