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

PhysicsW.E.P.MiscellaneousEasy2 minPYQ_2021

PhysicsEasysingle choice

A sphere of mass 25 gram is placed on a vertical spring. Spring is compressed by $0.2 m$ using a force $5 N$ . When the spring is relaxed, mass is reaching a height of $(g = 10 m / s^{2})$

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Answer:

Solution:

Gravitational potential energy gained by the ball $=$ Elastic potential energy in the spring $mgh = \frac{1}{2} Fx ∴ h = \frac{Fx}{2 mg} = \frac{5 \times 0.2}{2 \times 25 \times 1 0 ^{- 3} \times 10} = 2 m$

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

⏱ 2mℹ️ Source: PYQ_2021

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