Calculate the area over which a force of 720 N should act to produce a pressure of 60 Pa.
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Pressure is defined as the force exerted (on a surface) per unit surface area. Pressure is a scalar.
P = F / A, Its unit is Pascal = Newton / meter². There are also some other units in use for pressure.
1) F = P * A = 50, 000 Pascals * 0.5 meter = 25, 000 Pascals or N/m²
2) Surface Area A = Force / Pressure = 100 N / 500 pa = 1/5 m²
3) Area = 30 cm² = 30 / (100*100) meter²
Pressure = F / A = 300 N / (3/1000) = 100 * 1000 pa = 1 * 10⁵ pa
4 ) Area = 1 cm² = (1/100)² meter²
Force needed = P A = 20, 000 pa * (1/100²) m² = 2 Newtons
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