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Physics - NLM Question with Solution | TestHub

PhysicsNLMMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A uniform rope of length $l$ lies on a table. If the coefficient of friction is $μ$ , then the maximum length $l_{1}$ of the part of this rope which can overhang from the edge of the table without sliding down is

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Answer:

Solution:

Weight of hanging part is balanced by friction

$(m \frac{l_{1}}{l}) g = μ N$

$(m \frac{l_{1}}{l}) g = μ (m \frac{l - l_{1}}{l}) g$

$l_{1} = μ (l - l_{1})$

$l_{1} = \frac{μ l}{μ + 1}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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