Quesion:AB is a uniform rod of length 50cm, and weight 20 newton, acting at its mid-point, rotates easily in a vertical plane about a fixed hinge at its end A. A couple having moment of magnitude 250 newton.cm acts on the rod in the same vertical plane. Find the measure of the inclination angle of the rod and the hinge reaction on the rod in the state of equilebrium.
Confusion:I reached to sinθ=1/2 then the confusion here is θ=30 only or 30 and 150 as sin150 also equal 1/2
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