10- A 4-m-long quarter-circular gate of radius 3 m and of negligible weight is hinged about its upper edge A, as shown in Figure. The gate controls the flow of water over the ledge at B, where the gate is pressed by a spring. Determine the minimum spring force required to keep the gate closed when the water level rises to A at the upper edge of the gate. 3 m B Spring
10- A 4-m-long quarter-circular gate of radius 3 m and of negligible weight is hinged about its upper edge A, as shown in Figure. The gate controls the flow of water over the ledge at B, where the gate is pressed by a spring. Determine the minimum spring force required to keep the gate closed when the water level rises to A at the upper edge of the gate. 3 m B Spring
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Transcribed Image Text:10- A 4-m-long quarter-circular gate of radius 3 m and of
negligible weight is hinged about its upper edge A, as shown
in Figure. The gate controls the flow of water over the ledge
at B, where the gate is pressed by a spring. Determine the
minimum spring force required to keep the gate closed when
the water level rises to A at the upper edge of the gate.
3 m
B
Spring
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