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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationEnergy & PotentialMedium2 minPYQ_2013

PhysicsMediumsingle choice

A body of mass $m$ taken from the earth's surface to the height equal to twice the radius $(R)$ of the earth. The change is potential energy of body will be

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Solution:

Change in potential energy $Δ U = - \frac{GM m}{R + 2 R} - (- \frac{GM m}{R}) = - \frac{GM m}{3 R} + \frac{GM m}{R} = \frac{2 GM m}{3 R} = \frac{2}{3} m g R [∵ g = \frac{GM}{R ^{2}}]$

Stream:NEETSubject:PhysicsTopic:GravitationSubtopic:Energy & Potential

⏱ 2mℹ️ Source: PYQ_2013

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