Question

Calculate the moment of inertia when a magnet of dimensions 3cm X 1cm, where mass of a magnet .018 kg.

Answer 1

Answer:

dimension of magnet =length *breadth =3*1cm

mas of the magnet is =0.18kg

lenth =3cm

firstly we convert cm to m

3cm =0.03m

Moment of intertia is ML^2

=0.18*(0.03)^2

=0.18*0.00009=0.000162 kg m^2