NEET Physics Work Done by Forces MCQ Question
Which of the following statements about work done by forces is correct?
Work done by a force is positive when the force and displacement are in the same direction.
Work done by a force is always negative if the force opposes the motion.
The work done by a spring force is always positive during compression.
Work done is zero when the force acts perpendicular to the direction of displacement.
Correct Answer
Detailed Explanation
The work done by a force is positive when it acts in the same direction as the displacement, as indicated in the context about the external pulling force overcoming the spring force. Work done can be zero when the force is perpendicular to displacement.
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