656Civil EngineeringMedium
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is ________?
A27,000 kg
B9,000 kg
C18,000 kg
D13,500 kg
E30,000 kg
Correct answer
D. 13,500 kg
Explanation
The correct answer is 13,500 kg.