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24 March, 19:03

A block of size 20m x 10 mx 5 m exerts a force of 30N. Calculate the

maximum & minimum pressure exerted by the block on ground? hello yeah tell me the answer of this question

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  1. 24 March, 19:30
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    We know that force applied per unit area is called pressure.

    Pressure = Force / Area

    When force is constant than pressure is inversely proportional to area.

    1 - Calculating the area of three face:

    A1 = 20m x 10 m = 200 Square meter

    A2 = 10 mx 5 m = 50 Square meter

    A3 = 20m x 5 m = 100 Square meter

    Therefore A1 is maximum and A2 is minimum.

    2 - Calculate pressure:

    P = F / A1 = 30 / 200 = 0.15 Nm⁻² (minimum pressure)

    P = F / A2 = 30 / 50 = 0.6 Nm⁻² (maximum pressure)

    Hence greater the area less will be the pressure and vice versa.
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