(a)[2]
Water has density $1000\,\text{kg m}^{-3}$ and the gravitational field strength $g$ is $10\,\text{N kg}^{-1}$. Calculate the pressure produced by the water on the tank base.
(b(i))[1]
The pressure in the water at the base of the tank is $4.2\times10^5\,\text{Pa}$. Explain why the pressure in the water at the base of the tank is not the same as the value found in (a).
(b(ii))[2]
Calculate the force on the base of the tank.
(c)[1]
Force is a vector quantity and pressure is a scalar quantity. State how a vector quantity is different from a scalar quantity.