A uniform metre rule of mass 10g is balanced on a knife edge placed at 45cm mark. Calculate the distance of a mass 25g from the pivot​

Question

A uniform metre rule of mass 10g is balanced on a knife edge placed at 45cm mark. Calculate the distance of a mass 25g from the pivot​

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Jezebel 3 years 2021-07-15T13:06:29+00:00 1 Answers 0 views 0

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  1. Neala
    0
    2021-07-15T13:07:43+00:00
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    Answer:

    The distance of a mass 25g from the pivot​ is 18cm

    Explanation:

    Given

    m_1 = 10g

    d_1 = 45cm

    m_2 = 25g

    Required

    Distance of m2 from the pivot

    To do this, we make use of:

    m_1 * d_1 = m_2 * d_2 — moments of the masses

    So, we have:

    10 * 45= 25* d_2

    450= 25* d_2

    Divide both sides by 25

    18= d_2

    Hence:

    d_2 = 18

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