Question

Find the moment of inertia of a uniform rod of length 80cm and mass of 3kg about an axis passing
perpendicularly through its center​

Answer 1

formula to inertia of moment when there is a uniform rod axis passing through it centre is

1/12 × ml² ( m is mass , l is lenght )

80 cm = 0.80 m ( metres)

1/12 × 3 × (0.80)²

= 1 × 0.25 × 1.60

= 0.4 kgm²

Answer 2

formula to inertia of moment when there is a uniform rod of Axis passing through centre is

1/12×ml²(m Eid mass,l is length).

80cm=0.80m.

1/12×3×(0.80)1.

=1×0.25×1.60.

=0.4kgm².

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