A) \[0.25\text{ }kg-{{m}^{2}}\]
B) \[2.5\text{ }kg-{{m}^{2}}\]
C) \[4.5\text{ }kg-{{m}^{2}}\]
D) \[25\text{ }kg-{{m}^{2}}\]
Correct Answer: A
Solution :
Torque, \[\tau =I\omega \] Moment of inertia, \[I=\frac{\tau }{\omega }\] \[=\frac{3.14}{4\times \pi }\] \[=\frac{3.14}{4\times 3.14}=\frac{1}{4}\] \[=0.25kg-{{m}^{2}}\]
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