Contact Cases What Is The Pressure Exerted By The Floor Over The Area Of Contact In The Following Cases?

What is the pressure exerted by the floor over the area of contact in the following cases? - contact cases

A ballet dancer's toes to 60.0 kilograms in a scene with four inches square (26.0 cm2) in contact with the ground. What is the pressure of the soil, exerted on the contact surface in these cases?
(a), if the dancer is
_____ Pa
(b) when the dancer moves upwards with an acceleration of 4.00 m/s2
_____ Pa