A rod AB is hinged at A to a ceiling and attached at B to a cable BD that is anchored to the ceiling at D, 200 mm to the right of A. End B is 300 mm to the right of A and 100 mm below the ceiling. The rod carries two 90 N downward loads at 100 mm and 200 mm (horizontally) from A. Determine (a) the tension in cable BD, (b) the magnitude of the reaction at A. (answers in N)