Question: ( 1 5 p ) b ) A rectangular gate of 1 0 m high and 5 m wide 1 s hinged at point A

(15 p) b) A rectangular gate of 10 m high and 5 m wide 1 s hinged at point A. The gate is subject to water pressure on the right hand side, and oil pressure on the left. If hw=4m and ho=2.5m, find the force R needed to hold the gate as shown in the figure.
( 1 5 p ) b ) A rectangular gate of 1 0 m high

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