Question

A girl standing on a box having 60 cm length ,40cm breath and 20 cm width the pressure exerted by the girl on the box

Answer 1

In this question, the dimensions of the box are meaningless.

We know that

Pressure is a force exerted by a body per unit Area.

Pressure = Force / Area

In this case, the force will be equal to the weight of the girl.

So the pressure depends on the Weight of the girl and the area on which she is standing.

So we have

Pressure = Weight of girl / Area