A uniform horizontal rod of length 4m and weight 200N is hinged to a vertical wall at one end. Its free end is supported by a light cable attached to the wall such that the cable makes an angle of 30∘ with the rod. Neglecting the weight of the cable, find the tension in the cable when the system is in equilibrium.
a) 231N
b) 200N
c) 116N
d) 400N