Find the force exerted by the water on a `2m^2` plane surface of a large stone placed at the bottom of a sea 500 m deep. Does the force depend on the orientation of the surface? Neglect the size of the stone in comparison to the depth of the sea.

Answer

A

Explanation

`h=5000m A=2m^2`
`g=10m/s^2`
`rho_w=10^2kg/m^3`
`a.:.F=PxxA=(hrho_wxxg)A`
`(500xx10^3xx10)xx2`
`=10^7N/m^2`
b. the force does not depend on the orientation of the rock as long as the surface area remains same.