The uniform bar of mass \(m\) and length \(l\) is pivoted at its center. The spring of constant \(k\) at the left end is attached to a stationary surface, but the right-end spring, also of constant \(k\), is attached to a support which undergoes a harmonic motion given by \(y_{B}=b \sin \omega t\). Determine the driving frequency \(\omega_{c}\) which causes resonance.

Transcribed Image Text:

12 ww 10 ~2 m YB = b sin at B