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Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Medium2 minQB

PhysicsMediumstatement

A uniform sphere of mass m and radius r is given in the figure. Moment of inertia about different axes is shown. Then the correct statement is ( $I_{x}$ is moment of inertia about x axis and $I_{y}$ is moment of inertia about y axis):-

Options:

Answer:

Solution:

Axes x, y, z pass through the centre $I_{x} = I_{y} = I_{z} = \frac{2}{5} m r^{2}$ Axes 1, 2, 3 are tangents $I_{1} = I_{2} = I_{3} = \frac{2}{5} m r^{2} + m r^{2} = \frac{7}{5} m r^{2}$ $I_{1} + I_{2} = 2 I_{3}$ Answer: C

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Calculation of M.I.

⏱ 2mℹ️ Source: QB

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