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Physics - NLM Question with Solution | TestHub

PhysicsNLMSimple Application of NLMMedium2 minPYQ_2017

PhysicsMediumsingle choice

Same spring is attached with $2 kg, 3 kg$ and $1 kg$ blocks in three different cases as shown in figure. If $x_{1}, x_{2}, x_{3}$ be the extensions in the spring in the three cases, then

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Solution:

If $T_{1}, T_{2}, T_{3}$ are the tensions in the strings in the three cases, we have $T_{1} = \frac{2 m _{1} m _{2} g}{m _{1} + m _{2}} = \frac{2 \times 2 \times 2 g}{( 2 + 2 )} = 2 g T_{2} = \frac{2 \times 3 \times 2 g}{( 3 + 2 )} = 2.4 g T_{3} = \frac{2 \times 1 \times 2 g}{( 1 + 2 )} = 1.33 g As x \propto T and T_{2} > T_{1} > T_{3} ∴ x_{2} > x_{1} > x_{3}$

Stream:AIIMSSubject:PhysicsTopic:NLMSubtopic:Simple Application of NLM

⏱ 2mℹ️ Source: PYQ_2017

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