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Calculate the moment of inertia of a rec...

Calculate the moment of inertia of a rectangular bar about an axis passing through the centre and perpendicular to its length. Mass of bar is 0.2 kg and length is 10 cm

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To calculate the moment of inertia of a rectangular bar about an axis passing through its center and perpendicular to its length, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Formula**: The moment of inertia \( I \) of a rod (rectangular bar) about an axis passing through its center and perpendicular to its length is given by the formula: \[ I = \frac{1}{12} M L^2 ...
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Find the moment of inertia of a rectangular bar magent about an axis passing through its centre and parallel to its thickness. Mass of magent is 100 g , its length is 12 cm , breadth is 3 cm and thickness is 2 cm .

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Knowledge Check

  • The moment of inertia of a copper disc, rotating about an axis passing through its centre and perpendicular to its plane

    A
    increases if its temperature is increased
    B
    changes if its axis of rotation is changed
    C
    increases if its angular velocity is increased
    D
    both (a) and (b) are correct

  • Moment of inertia of a ring of mass M and radius R about an axis passing through the centre and perpendicular to the plane is

    A
    `1//2MR^(2)`
    B
    `MR^(2)`
    C
    `1//4MR^(2)`
    D
    `3//4 MR^(2)`

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