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ICSE Class 8 Physics Question 6 of 24

Force and Pressure — Question 8

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Question

Question 8

Calculate the pressure in pascal exerted by a force of 300 N acting normally on an area of 30 cm2.

Answer

Given:
Thrust = 300 N
Area = 30 cm2 = 3010000\dfrac{30}{10000} = 0.003 m2
Pressure = ?

Pressure=ThrustArea=3000.003=1,00,000 Pa\text{Pressure}= \dfrac{\text{Thrust}}{\text{Area}} \\[1em] = \dfrac{300}{0.003} \\[1em] = 1,00,000 \text{ Pa}

So Pressure = 1,00,000 Pa or 105 Pa.