Question

The force that water exert on the base of a house tank of base area 1.5 m${}^2$ when it is filled with water up to a height of 1 m if (g = 10 m/s${}^2$)

• A. 1200 kgwt
• B. 1500 kgwt
• C. 1700 kgwt
• D. 2000 kgwt

Answer 1

The correct option is B 1500 kgwt

Pressure at the bottom of the house tank=$\rho gh$

$=1000\times 10\times 1Pa$

$={10}^{4}Pa$

Hence the force acting on the base=$PA={10}^4\times 1.5N=1500kgwt$