In the diagram, a mass of 12kg hanging from a light inextensible string is pulled aside by a horizontal force, R, such that the string is inclined at 45(^o) to the vertical. If the system is in equilibrium, calculate the;
(a) tension in the string;
(b) value of R
Explanation
Using Lami’s Theorem;
(a) (frac{T}{sin 90^o} = frac{120}{sin 135^o}) and T = 169.71N
(b) (frac{R}{sin 135^o} = frac{120}{sin 135^o}) and R = 120N