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PhysicsW.E.P.Conservative force & potential energyEasy2 minPYQ_2010

PhysicsEasysingle choice

A long string is stretched by $2 cm$ and the potential energy is $V$ . If the spring is stretched by $10 cm$ , its potential energy will be

Options:

Answer:

Solution:

$V = \frac{1}{2} k (x)^{2} = \frac{1}{2} k (2)^{2}$ or $k = \frac{2 V}{4} = \frac{V}{2}$ $V^{'} = \frac{1}{2} k (10)^{2} = \frac{1}{2} \times (\frac{V}{2}) (10)^{2} = 25 V$

Stream:BITSATSubject:PhysicsTopic:W.E.P.Subtopic:Conservative force & potential energy

⏱ 2mℹ️ Source: PYQ_2010

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