Question

For motion under central forces, which quantity will be conserved?

• A. Kinetic energy
• B. Mechanical energy
• C. Potential energy
• D. None of the above

Hint:

In central forces, conservative nature ensures mechanical energy conservation.

Answer 1

The Correct Option is B

In central force motion (e.g., gravitational or electrostatic), the force is conservative. Hence, total mechanical energy (i.e., kinetic + potential energy) is conserved. But individually, kinetic and potential energies may change as the particle moves.