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Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Three masses $2 kg, 3 k g$ and $4 k g$ are lying at the corners of an equilateral triangle of side $l$ . The $X$ coordinate of center of mass is

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Answer:

Solution:

The $(X)$ coordinate of center of mass is,

$X_{c m} = \frac{m_{1} x_{1} + m_{2} x_{2} + m_{3} x_{3}}{m_{1} + m_{2} + m_{3}}$

$X_{c m} = \frac{2 (0) + 3 l + 4 (\frac{l}{2})}{2 + 3 + 4}$

$X_{c m} = \frac{5}{9} l$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:RotationSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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