Question

What is the magnitude of a force which
produces a pressure of 7000 Pa while acting
on a surface of area of cross-section 0.25 m2?

Answer 1

Pressure = force/ area 

Therefore, area = force/ pressure

area = 300N / 1500 Pa = 1 / 5 sq.m

Now, 1m = 100cm.

Therefore, 100×100/5 = 2000 sq.cm

Answer 2

Answer:

1750 N is the correct answer