Question

A force of 2400 N acts on the surface of area 20 cm normally. What would be the
pressure on the surface?​

Answer 1

Answer:

12000 Pascals

Explanation:

Area = 20 $cm^{2}$ = $\frac{20}{10000} m^{2}$  = $\frac{1}{500} m^{2}$

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

               $= \frac{2400}{\frac{1}{500} }$ $= \frac{24 * 500}{1}$

$Pressure = 12000 \ N/m^{2}$

               $= 12000 \ Pascals$

Answer 2

Pressure on the surface is 1.2*10⁶ N/m².

Given - Force and area

Find - Pressure

Solution - Pressure, force and area are related to each other as - Pressure = Force/Area

Converting area to metres.

1 m² = 10⁴ cm²

10⁴ cm² = 1 m²

20 cm² = $\frac{1 \times 20}{10000}$

20 cm² = 0.002 m²

Pressure = $\frac{2400}{0.002}$

Pressure = $\frac{2400000}{2}$

Pressure = 1.2*10⁶ N/m²

Hence, the pressure on the surface is 1.2*10⁶ N/m².

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