The three tanks shown above are filled with water to an equal depth. All the tan

Question

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

Explanation / Answer

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.

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