Question

Four particles cach af mass mare kapt at the four
cauneus of a squared of edge a. Find the moment
of inertia of the system about an aus þesperdiculay
to the plane of the system and passing through
the centre of the square.​

Answer 1

Answer:

The perpendicular distance of every particle

from the given line is a/2. The moment of

inertia of one particle is, therefore, m(a/2)2=21

ma2. The moment of inertia of the system is,

therefore, 4×21ma2=2ma2.