The horizontal platform ABCD weighs 60 lb and supports a 240-lb load at its center. The
Chapter 4, Problem 4.65(choose chapter or problem)
The horizontal platform ABCD weighs 60 lb and supports a 240-lb load at its center. The platform is normally held in position by hinges at A and B and by braces CE and DE. If brace DE is removed, determine the reactions at the hinges and the force exerted by the remaining brace CE. The hinge at A does not exert any axial thrust.
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