The weight of the shown bracket is negligible The magnitude

The weight of the shown bracket is negligible. The magnitude of the reaction at E is: (A) 500 lb (B) 400 lb (C) 200 lb (D) 100 lb

Solution

Reaction at E will be in horizontal direction towards point D.

Taking moment about A,

[Reaction E * (2.5\'+1.5\') ] + 800 = 400 * 3\'

Reaction E = (1200 - 800)/4

Reaction E = 100 lb.......option D