What is the force at B if the tank contains oil with SG07Sol

What is the force at B if the tank contains oil with SG=0.7?

Solution

From Pascal Law,

Delta P=(F1/A1)=F2/A2

From given data, F1=200lb,

F2=(F1*A2)/A1

F2=200*12^2

F2=200*144

F2=28880 lb