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Moment of Inertia Physics System of Particles and Rotational Motion Physics Class 11th

Two solid spheres each of mass 2 kg and radius 75 cm are arranged as shown. Find MOI of the system about the given axis.

Option 1 -

3.15 kg m²

Option 2 -

31.5 kg m²

Option 3 -

0.9 kg m²

Option 4 -

9 kg m²

3 Views | Posted a week ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

a week ago

Correct Option - 1

Detailed Solution:

$I = (\frac{2}{5} M R^{2} + M R^{2}) \times 2$

$= \frac{14}{5} \times 2 \times \frac{9}{16}$

$= \frac{63}{20}$

= 3.15 kg m²

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