Q. Angular momentum L and rotational kinetic energy $K_{R}$ of a rigid body are related to each other by the relation. ( $I$ = moment of inertia)

3543 198 System of Particles and Rotational Motion Report Error

A

$K_{R} = 2 I L$

9%

B

$K_{R} = \frac{L ^{2}}{2 I}$

73%

C

$K_{R} = \frac{2 I}{L}$

13%

D

$K_{R} = \frac{L ^{2}}{I}$

5%

Solution:

$K_{R} = \frac{L ^{2}}{2 I}$