Example 3 (4-6): 1.5 m 9 m The crane can be adjusted for any angle 0°<<90° and any extension 0≤x≤5 m. For a suspended mass of 120 kg, B (a) determine the moment developed at A as a function of x and 0. (b) What values of both x and 0 develop the maximum possible moment at A? Compute this moment. Neglect the size of the pulley at B.