Question

A man weighs 100 kgf stands on a platform of dimensions 50cm*50cm. Find the amount of pressure that he exerts in Pa. (1kgf = 9.8N

Answer 1

Answer:-

The platform is a square

• Side=50cm

$\\ \sf\longmapsto Area=(Side)^2$

$\\ \sf\longmapsto Area=(50cm)^2$

$\\ \sf\longmapsto Area=2500cm^2$

$\\ \sf\longmapsto Area=0.25m^2$

• Force=100kgf

Convert to Newton

$\\ \sf\longmapsto 100\times 9.8=980N$

We know

$\boxed{\sf Pressure=\dfrac{Force}{Area}}$

$\\ \sf\longmapsto Pressure=\dfrac{980}{0.25}$

$\\ \sf\longmapsto Pressure=3920Pa$