In the given figure, the horizontal platform ABCD weighs 60-lb and supports a 270-lb load at its center. The platform is normally held in position by the hinges at A and B and by braces CE and DE. Consider brace DE is removed. The hinge at A does not exert any axial thrust.
Determine the reactions at hinges and the force exerted by the remaining brace CE.
The force exerted by the brace CE is lb.
The reaction at A is - ( lb) i.
The reaction at B is - ( lb) i + ( lb) j - ( lb) k.
