Question

calculate the pressure on the ground by a box of mass lokg when
corresponding area of contact w 2 m? (g = 10 ms?)​

Answer 1

Pressure = Force / area = 100 / 2 = 50 N/m^2

If the area is a 2x2 = 4m^2 then pressure = 100/4 = 25 N/m^2

(Not Clear what the area is from your question)