Question: The 280-kg, 6-m-wide rectangular gate shown in Fig. P11??52 is hinged at B and leans against the floor at A making an angle of 45?

The 280-kg, 6-m-wide rectangular gate shown in Fig. P11??52 is hinged at B and leans against the floor at A making an angle of 45? with the horizontal. The gate is to be opened from its lower edge by applying a normal force at its center. Determine the minimum force F required to open the water gate.

0.5 m B. Water 3 m 145

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