Two particles of masses 5 kg and 10 kg are placed along x-axis at positions x = 1 m and x = 3 m. The moment of inertia of the system about an axis respectively passing through centre of mass and parallel to y-axis is

Option 1 - 15 kgm2

Option 2 - 20/3 kgm2

Option 3 - 20 kgm2

Option 4 - 40/3 kgm2

1 Views|Posted 4 months ago

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Answered by

Alok Kumar Singh | Contributor-Level 10

4 months ago

Correct Option - 4

Detailed Solution:

Distance of CM from 5 kg = 10*2/15 = 4/3m

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According to question, we can write

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According to question, we can write

$l = 2 π r \Rightarrow r = \frac{l}{2 π}$

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Physics System of Particles and Rotational Motion 2025

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