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A Pressure of 10 Pa Acts on an Area of 3.0 M2. What is the Force Acting on the Area ? What Force Will Be Exerted by the Application of Same Pressure If the Area is Made One-third ? - CBSE Class 9 - Science

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Question

A pressure of 10 Pa acts on an area of 3.0 m2. What is the force acting on the area ? What force will be exerted by the application of same pressure if the area is made one-third ?

Solution

Area = 3 m2
Pressure = 10 Pa
Force = ?
`"Pressure" = "Force"/"Area"`
Pressure × Area = Force
10 × 3 = Force
30 N = Force
Answer: Force = 30 N.
If the area is made one-third, then
Area = 3 m2 (1/3 of 3 m2) = 1 m2
Pressure = 10 Pa
Force = ?
`"Pressure" = "Force"/"Area"`
Pressure × Area = Force
10 × 1 = Force
10 N = Force
Answer: Force =10 N.

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APPEARS IN

 Lakhmir Singh Solution for Science for Class 9 Part 1 Physics (2016 to Current)
Chapter 3: Gravitation
Short Answers | Q: 50 | Page no. 125
Solution A Pressure of 10 Pa Acts on an Area of 3.0 M2. What is the Force Acting on the Area ? What Force Will Be Exerted by the Application of Same Pressure If the Area is Made One-third ? Concept: Free Fall - Motion of Objects Under the Influence of Gravitational Force of the Earth.
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