What force does water exert on the base of a house tank of a base area of 1.5 m² when it is filled with water up to a height of 1m? [Consider, Density of water = 10³kgm⁻³ and g=10ms⁻²]

Given, 
The base area of tank (A) =1.5m²
Height of the tank (h) =1 m
g=10ms⁻²
The density of water (d) =10³kgm⁻³

We can use the equation of pressure to calculate the liquid's pressure at a certain depth. 
Pressure = h x $\rho$x g
We also know that,
Pressure = $\frac{\mathrm{Force}}{\mathrm{Area}}$

$\therefore$Force exerted by water =Pressure × Area =  h x $\rho$x g ×A 

Force =1×103×10×1.5

Force =1.5×10⁴ N

Therefore, the force exerted by the water in the tank will be 1.5×10⁴ N.