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Physics - NLM Question with Solution | TestHub

PhysicsNLMFBD & EquilibriumEasy2 minPYQ_2020

PhysicsEasysingle choice

A bob of pendulum of mass $50 g$ is suspended by a string with the roof of an elevator. If the lift is falling with a uniform acceleration of $5 m s^{- 2},$ the tension in the string is $(g = 10 m s^{- 2})$

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Answer:

Solution:

Here, mass of bob, $m = 50 g$

$= 0.05 kg$

Since, the lift is falling downward with a uniform acceleration of $5 m s^{- 2}$ , hence tension in the string,

$T = m (g - a)$

$= 0.05 (10 - 5)$

$= 0.05 \times 5$

$= 0.25 N$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:FBD & Equilibrium

⏱ 2mℹ️ Source: PYQ_2020

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