A sluice gate is placed across a rectangular channel where the water depth is 15 ft, as shown in Figure P5.48. Calculate the anchoring force required to hold the gate in place when (a) the gate is...

A sluice gate is placed across a rectangular channel where the water depth is 15 ft, as shown in Figure P5.48. Calculate the anchoring force required to hold the gate in place when (a) the gate is fully closed with no water downstream, and (b) when the gate is opened by 1 ft and operates under a free condition.