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Physics - Rotation Question with Solution | TestHub

PhysicsRotationCalculation of M.I.Medium2 minPYQ_2004

PhysicsMediumsingle choice

Three particles, each of mass $m$ gram, are situated at the vertices of an equilateral triangle $ABC$ side $l cm$ (as shown in the figure). The moment of inertia of the system about a line $AX$ perpendicular to $A B$ and in the plane of $A BC$ , in gram $cm^{2}$ units will be:
NEET 2004

Options:

Answer:

Solution:

According to the question $I_{A X} = m l^{2} + m (\frac{l}{2})^{2} = m l^{2} + \frac{5}{4} = \frac{5}{4} m l^{2}$

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

⏱ 2mℹ️ Source: PYQ_2004

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