Answer:
See below
Explanation:
The vertical force in the R cable must equal the vertical force of the weight (since there is no vertical force in the L cable)
f sin30 = 150 then f-right = 300 N = L tension
The horizontal forces in the L and R cables must match
Horizontal : f-right = f-left = 300 cos 30 = 259.8 N = L tension
