Calculate the pressure exerted on a surface by a brick of weight 10 N. The area in contact with the surface is 20 cm2

Question

Calculate the pressure exerted on a surface by a brick of weight 10 N. The area in contact with the surface is 20 cm2

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Nem 3 years 2021-08-21T20:38:20+00:00 2 Answers 1 views 0

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    0
    2021-08-21T20:39:48+00:00

    Answer: 5000

    Explanation: pressure: force / area

    SI unit of force: newton

    SI unit of area: metre²

    Force exerted: 10 N

    Area on which it is exerted : 20 cm²

    Since area has to be in m² , we convert cm² to m² by dividing it by 10000( m:100cm, 1m²: 10000 cm²)

    Area=20/10000: 0.002 m²

    So, pressure= 10/0.002=5000 pa( SI unit of pressure is pascal)

    0
    2021-08-21T20:40:18+00:00

    Answer:

    Explanation:

    Force of brick = 10 N

    Area of surface = 20 cm^2

    Pressure = force / area

    ∴ Pressure = 10 / 20

    = 1 / 2 or 0.5 Pa

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