Question

Calculate the moment of inertia for two spheres of radius \(10\,\text{cm}\) placed \(20\,\text{cm}\) apart.

• A. \(\frac{7}{5}MR^2\)
• B. \(\frac{14}{5}MR^2\)
• C. \(\frac{9}{5}MR^2\)
• D. \(2MR^2\)

Hint:

For systems of multiple bodies, calculate the moment of inertia of each body using the parallel axis theorem and then add them to obtain the total moment of inertia.

Answer 1

The Correct Option is B