Four point masses, each | RIGID BODY DYNAMICS| JEE-MAIN 2020

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JEE MAIN 2020

06.09.20_S1

Question

Four point masses, each of mass m , are fixed at the corners of a square of side $\ell$. The square is rotating with angular frequency $\omega$, about an axis passing through one of the corners of the square and parallel to its diagonal, as shown in the figure. The angular momentum of the square about this axis is

Select the correct option:

A

$3 m \ell^2 \omega$

B

$4 m \ell^2 \omega$

C

$m \ell^2 \omega$

D

$2 m \ell^2 \omega$

✓ Correct! Well done.

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