Question

 A normal force 35N act over an area of 5m2. What is the pressure exerted by the force?

a. 7.00 dynes b. 7.00 joules c. 7.00 pascals d. 7.00 watts

Answer 1

By defintion, the pressure is:

$$p = \dfrac{F}{A}$$

where $F = 35N$ is the force, and $A = 5m^2$ is the area over which the force acts. The units of the pressure are pascals. Thus, obtain:

$$p = \dfrac{35N}{5m^2} = 7Pa$$

Answer. c. 7.00 pascals.