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Physics - NLM Question with Solution | TestHub

PhysicsNLMFBD & EquilibriumEasy2 minPYQ_2020

PhysicsEasysingle choice

A pulley fixed with ceiling carries a string with blocks of mass $m$ and $3 m$ attached to its ends. The masses of string and pulley are negligible. When the system is released, its centre of mass moves with acceleration

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Answer:

Solution:

The magnitude of the acceleration of each mass with respect to the pulley

$a = \frac{3 m g - m g}{(3 m + m)} = \frac{g}{2}$

Acceleration of centre of mass $= \frac{(3 m) g / 2 - m g / 2}{(3 m + m)} = \frac{g}{4}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:FBD & Equilibrium

⏱ 2mℹ️ Source: PYQ_2020

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