The cover in the figure is in the form of a quarter circle, its width perpendicular to the paper plane is 3 m and it is hinged from point B. Find the minimum value of the force F that will prevent the door from opening. The cap is uniform and weighs 15 kN.

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Q: A 20 straight-tooth bevel pinion having 14 teeth and a diametral pitch of 4 teeth/in drives a…

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