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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Three thin uniform rods each of mass $M$ and length $L$ and placed along the three axes of a Cartesian coordinate system with one end of each rod at the origin. The $M . I .$ of the system about $z$ -axis is-

Options:

Answer:

Solution:

$I = I x + I y + I z = \frac{M L^{2}}{3} + \frac{M L^{2}}{3} + 0 = \frac{2 M L^{2}}{3}$

As moment of inertia of rod about its own axis is zero.

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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