Let R be the reaction given by the block to the roller, and supposed to act at point A makes an angle of ? as shown in fig, For finding the angle θ,
Sinθ = 75/175 = 0.428 θ = 25.37°
Apply lami's theorem at ‘A’, Since the body is in equilibrium
T/sin(90° + 25.37°) = 150 × g/ sin(64.63° + 65°)
T = [150 × g × sin(90° + 25.37°)]/ sin(64.63° + 65°)
T = 1726.33 N
