15. Rotational Equilibrium
Torque & Equilibrium
6:45 minutes
Problem 11d
Textbook Question
Textbook QuestionA uniform 300-N trapdoor in a floor is hinged at one side. Find the net upward force needed to begin to open it and the total force exerted on the door by the hinges (a) if the upward force is applied at the center and (b) if the upward force is applied at the center of the edge opposite the hinges.
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