NEET Physics Work Done by Forces MCQ Question
Consider a diagram where a block is being pulled along a rough horizontal surface by a force F at an angle θ with the horizontal. Which of the following statements about the work done by the forces on the block is correct?
The work done by the frictional force is negative.
The work done by the gravitational force is positive.
The work done by the normal force is non-zero.
The work done by the force F is independent of angle θ.
Correct Answer
Detailed Explanation
The work done by the frictional force is negative because friction opposes the motion, as mentioned in the NCERT context about work done by forces.
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