Question

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The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A has the least surface area at the bottom, tank B the greatest and tank C the middle.
(Select T-True, F-False, G-Greater than, L-Less than, E-Equal to. If the first is F the second L and the rest G, enter
FLGGGG).

A) The force due to the water on the bottom of tank B is .... the weight of the water in the tank.
B) The pressure exerted on the bottom of tank B is greater than for the other tanks.
C) The water in tank B exerts an upward force on the sides of the tank.
D) The force exerted by the water on the bottom of tank B is ... the force exerted by the water on the bottom of tank A
E) The pressure at the bottom of tank B is ... the pressure at the bottom of tank C

Answer 1

A) E

B) F

C) T

D) G

E) E

Here is the explanation :

A) weight of the water acts downward and the surface exert the same amount force upward.

B) P = rho*g*H. As all the tanks have same depth, pressure should be same.

C) Fluid always exert a force perpendicular to the surface.
in this case there would be a component of force upward.

d) F = P*A

Be has more area. so more force

e) P = rho*g*H. As all the tanks have same depth, pressure should be same.