NEET Physics Work-Energy Theorem MCQ Question
Which of the following statements about the Work-Energy Theorem is correct?
The theorem applies only to conservative forces and does not account for non-conservative forces like friction.
The Work-Energy Theorem states that the work done by the net force on an object equals the change in its kinetic energy, regardless of the nature of the forces involved.
The theorem can only be applied in situations with constant forces acting on the object.
The Work-Energy Theorem incorporates time as an essential factor in relating work and energy changes.
Correct Answer
Detailed Explanation
The Work-Energy Theorem states that the work done by the net force on an object equals the change in kinetic energy (K_f - K_i = W), which applies to both conservative and non-conservative forces, as illustrated in the context of friction and gravitational forces.
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