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A wooden rod weighing 25N is mounted on ...

A wooden rod weighing `25N` is mounted on a hinge below the free surface of water as shown. The rod is `3m` long and uniform in cross section and the support is 1.6m below the free surface. At what angle `alpha` rod is in equilibrium? The cross-section of the rod is `9.5 xx10^(-4)m^(2)` in area. Density of water is `1000kg//m^(3)`. Assume buoyancy to act at centre of immersion. `g=9.8m//s^(2)`. Also find reaction on the hinge in this position.
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