Question

calculate the area of a 1500 newton object that exerts a pressure of 500 pascals

Answer 1

Given:

Force of an object= 1500 Newton

Pressure exerted by an object = 500 Pascal

To find:

Area over which force is applied by and object= ?

Solution:

• To calculate the area over which object exerts pressure, we need to understand the correlation of force, pressure and area.
• An object exerts pressure on the other object.
• The pressure exerted over any surface depends on force exerted by an object due to its mass (in perpendicular direction) and the surface area of the object which is in contact to other surface.

Therefore, the correlation is:

Pressure (Pascal) = Force (Newton) ÷ Area (m²)

(Pascal and Newton is the SI unit of pressure and force respectively.)

∴ Area (m²) =  Force (Newton) ÷ Pressure (Pascal)

Area = 1500 N ÷ 500 Pa

Area = 3 m²

• Hence, the area over which object exerts pressure is 3m².