Question

What is the pressure if a force of 200 N is applied over an area of
50 cm2?
a. 4 N/cm2.
b. 0.24 N/cm2.
c. 10,000 N/cm2.
d. 150 N/cm2

Answer 1

The pressure is $4 N / c m^{2}$.

Answer: Option A

Explanation:

Pressure defines the force acting per single area. So depending upon the amount of force acting over a given area in the perpendicular direction of the object, the pressure acting on that area will vary.

So the pressure is directly proportionate to the applied force on a particular region and inversely proportionate into the areas of the region. Hence, the unit of pressure is considered as  $N / c m^{2}$ or Pascal. Pressure can also be termed as the number of air molecules present in a specified closed region. Thus, for the present condition

              $\text { Pressure }=\frac{\text { Force }}{\text { Area }}$

Thus, by appling the given values in the above equation, we get,

              $\text { Pressure }=\frac{200}{50}$ =  $4 N / c m^{2}$

So the pressure is $4 N / c m^{2}$.