Concepts Of Physics MCQ Edition [Volume 1]PhysicsWork and Energy

The total work performed on a particle is equal to the change in its kinetic energy

Options

Aonly if gravitational force alone acts on it
Bin all cases
Conly if the forces acting on it are conservative
Donly if elastic force alone acts on it

Correct answer

B. in all cases

Step-by-step solution

According to the work-energy theorem, the total work done by all the forces acting on a particle is equal to the change in its kinetic energy. W_ net = K This theorem is valid for all types of forces, including conservative, non-conservative, internal, and external forces. Therefore, it holds true in all cases.

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