Question

A uniform rod of length l is free to rotate in a vertical plane about a fixed horizontal axis through B. The rod begins rotating from rest from its unstable equilibrium position. When, it has turned through an angle 8, its angular velocity ω is given by

• A. \(\sqrt {(\frac {6g}{l})}\ sin \frac θ2\)
• B. \(\sqrt {(\frac {6g}{l})}\ cos \frac θ2\)
• C. \(\sqrt {(\frac {6g}{l})}\ sinθ\)
• D. \(\sqrt {(\frac {6g}{l})}\ cosθ\)

Answer 1

The Correct Option is A

The correct option is (A): \(\sqrt {(\frac {6g}{l})}\ sin \frac θ2\).