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Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Easy2 minPYQ_2020

PhysicsEasysingle choice

Three point masses, each of mass 'm' are placed at the corners of an equilateral triangle of side $^{'} ℓ^{'}$ . The moment of inertia of the system about an axis along any one side of the triangle is

Options:

Answer:

Solution:

$OP = ℓ^{2} - \frac{ℓ ^{2}}{4} = \frac{3}{2} ℓ$ $∴ MOI = m (\frac{3 ℓ}{2})^{2} = \frac{3}{4} m ℓ^{2}$

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

⏱ 2mℹ️ Source: PYQ_2020

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