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Three point masses, each of mass m, are ...

Three point masses, each of mass m, are situated at the three corners of an equilateral triangle of each side `l`. The moment of inertia of this system about one of the sides of the triangle will be -

A

`ml^(2)`

B

`3ml^(2)`

C

`(3)/(4)ml^(2)`

D

`(2)/(3)ml^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C

`I=(0)+(0)+m((sqrt(3))/(2)l)^(2)`
`=(3)/(4)ml^(2)`
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