A) Rotational kinetic energy
B) Moment of inertia
C) Angular velocity
D) Angular momentum
Correct Answer: D
Solution :
[d] \[{{\tau }_{ex}}=0\] |
\[\text{So,}\frac{\text{dL}}{\text{dt}}\text{=0}\] |
i.e. L = constant |
So angular momentum remains constant. |
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