Question

A solid weighs 300 N .calculate the pressure exerted by the solid on a surface ,if the area of contact is 400 cm^2​

Answer 1

Answer:

The pressure exerted by the solid on the surface is 7500 Pa.

Explanation:

The weight of the solid will be equal to the pressure exerted by the solid on the surface. ie;

Force exerted by the solid on the surface, F = 300 N

The area of contact of the solid with the surface, A = 400 cm² = 0.04 m²

Pressure can be calculated using the formula,

 P = F / A

∴ P = 300 / 0.04

  P = 7500 N/m²

            or

  P = 7500 Pa