Question

what is the magnitude of force which will produce a pressure of 25000 pa over a surface area of 0.50cm square?

Answer 1

pressure = force / area
25000 pa = f / 0.05 cm square
25000 pa = f / 0.00005 m square
f = 25000 × 0.00005
f = 25 × 0.05
f = 1.25 N

Answer 2

p= F÷a
25000pa = F÷(0.50/100)m
25000 ÷20=F=1250