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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2009

PhysicsEasysingle choice

A block of mass $M$ is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant value $k$ . The mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will beNEET 2009 (Screening)

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Answer:

Solution:

Key Idea Use the law of conservation of energy. Let $x$ be the extension in the spring. Applying conservation of energy $\Rightarrow mgx - \frac{1}{2} kx^{2} = 0 - 0 x = \frac{2 mg}{k}$

Stream:NEETSubject:PhysicsTopic:W.E.P.Subtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2009

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