*5-60. Determine the distance d for placement of the load P for equilibrium of the smooth bar in the position as shown. Neglect the weight of the bar. a d P

Determine the moment M that will produce a maximum stress of 70 MPa on the cross-section.

A uniform 300 NN trapdoor in a ceiling is hinged at one side.   Find the net upward force needed to begin to open it if the upward force is applied at the center. Express your answer with the appropriate units.   Find the total force exerted on the door by the hinges if the upward force is applied at the center. Express your answer with the appropriate units   Find the net upward force needed to begin to open it if the upward force is applied at the center of the edge opposite the hinges. Express your answer with the appropriate units.   Find the total force exerted on the door by the hinges if the upward force is applied at the center of the edge opposite the hinges. Express your answer with the appropriate units.

Important question, Please answer it correctly. Don't use chatgpt or any other tools . (Confused in a strain energy concept)