Question

3. What will be the change in the pressure if -
a. thrust is increased three times keeping the area of contact constant .
b. area of contact is reduced to half keeping the thrust constant.

Answer 1

It is the measure of a force that is applied to a unit area is called pressure.

Mathematically   P = F / A

Explanation:

• The pressure is defined as;  
• It is the measure of a force that is applied to a unit area is called pressure.
• Mathematically  
• P = F / A
• Pressure and thrust are directly proportional to each other. Therefore;
• If the thrust will be increased three-time, the pressure will also become thrice in magnitude.
• Pressure and area are inversely proportional to each other if the area will be halved then the pressure will be doubled.