COMEDK · Physics · 6. Work Power Energy
For motion under central forces, which quantity will be conserved ?
- A Kinetic energy
- B Mechanical energy
- C Potential energy
- D None of the above
Answer & Solution
Correct Answer
(B) Mechanical energy
Step-by-step Solution
Detailed explanation
A central force is a force that is directed along the line joining the source of the force and the particle, and its magnitude depends only on the distance \(r\) from the source. Such a force can be expressed as \(\vec{F} = f(r)\hat{r}\). Since the force is purely radial, the…
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