Calculate the area over which a force of 500 N should act to
produce a pressure of 25 Pa. (A=F/P)
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Explanation:
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Concept:
- Force
- Pressure
- The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure.
- Pressure is expressed using a variety of units.
- Some of these come from dividing a unit of force by a unit of area; for instance, the SI unit of pressure, the pascal (Pa), is equal to one newton per square metre (N/m2);
Given:
- Force F = 500 N
- Pressure P = 25 Pa
Find:
- The area over which the force of 500 N should act to produce the pressure of 25 Pa
Solution:
We know that pressure can be expressed as the force acting per unit of area
P = F/A
so,
A = F/P
A = 500/25
A = 20 m²
The area is 20 m².
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