The vertical bar \(A B\) has a mass of \(150 \mathrm{~kg}\) with center of mass \(G\) midway between the ends. The bar is elevated from rest at \(\theta=0\) by means of the parallel links of negligible mass, with a constant couple \(M=5 \mathrm{kN} \cdot \mathrm{m}\) applied to the lower link at \(C\). Determine the angular acceleration \(\alpha\) of the links as a function of \(\theta\) and find the force \(B\) in the link \(D B\) at the instant when \(\theta=30^{\circ}\).

Transcribed Image Text:

B T 0.6 m 1.5 m D G 1.8 m 1.5 m M e A