Find the force P needed to just open the gate shown in Fig. P2.69 if: (a)...

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Find the force P needed to just open the gate shown in Fig. P2.69 if: (a) H6 m, R 2 m, and the gate is 4 m wide. (b) H 20 ft, R 6 ft, and the gate is 12 ft wide. 2.69 Water Н Р Hinge Fig. P2.69 Find the force P needed to just open the gate shown in Fig. P2.69 if: (a) H6 m, R 2 m, and the gate is 4 m wide. (b) H 20 ft, R 6 ft, and the gate is 12 ft wide. 2.69 Water Н Р Hinge Fig. P2.69