The cross section of a fresh-water tank with a slanted bottom is shown. A rectangular door 1.6 m by 0.8 m (normal to the plane of the figure) in the bottom of the tank is hinged at A and is opened against the pressure of the water by the cable under a tension P as shown. Calculate P.

 

Transcribed Image Text:

1.2 1 1.6 m 1.2 1 1.6 m