Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Hard2 minPYQ_2024

PhysicsHardnumerical

Three balls of masses $2 kg, 4 kg$ and $6 kg$ respectively are arranged at centre of the edges of an equilateral triangle of side $2 m$ . The moment of intertia of the system about an axis through the centroid and perpendicular to the plane of triangle, will be _______ $kg m^{2}$ .

Answer:

4.00

Solution:

Moment of inertia about $C$ and perpendicular to the plane is : $I I = r^{2} [2 + 4 + 6] = \frac{1}{3} \times 12 = 4 kg - m^{2}$

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

⏱ 2mℹ️ Source: PYQ_2024

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