Question

A force of 61 N is applied to an area of 750 cm2.

Calculate the pressure in N/m2.
Give your answer to the nearest integer.

Answer 1

Explanation:

Area750 cm² = 750 × 10^-4 m²

pressure = F/A

= 61 /(750×10^-4)

= 61 × 10⁴/750

= 0.081 × 10⁴

= 810 N/ m²

Answer 2

813N/m^2

Explanation:

Pressure is defined as the amount of force applied to an area. There are 100cm in a single meter, therefore:

`750cm^2=√(750) cm(1)/(100) (m)/(cm) =(√(750) )/(100) m=0.075m^2`

Pressure formula is:

`P=Force/Area=61N/0.075m^2=813N/m^2`