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Physics - NLM Question with Solution | TestHub

PhysicsNLMChallenging application of NLMHard2 minQB

PhysicsHardsingle choice

Two identical weights of mass M are linked by a thread wrapped around a frictionless pulley with a fixed axis. A small weight of mass 'm' is placed on one of the weights. What is reaction force between m and M ?

Options:

Answer:

Solution:

System of masses $M$ (left) and $M + m$ (right): $a = \frac{m g}{2 M + m}$ ...(i)

For the small weight $m$ : $m g - N = ma$ ...(ii)

$N = m (g - a) = m g (1 - \frac{m}{2 M + m}) = \frac{2 m M g}{2 M + m}$ .

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Challenging application of NLM

⏱ 2mℹ️ Source: QB

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