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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationEnergy & PotentialEasy2 minPYQ_2011

PhysicsEasysingle choice

The mass of earth is 81 times that of the moon and the radius of the earth is $3.5$ times that of the moon. The ratio of the escape velocity on the surface of earth to that on the surface of moon will be

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Answer:

Solution:

Escape velocity, $v_{e} = \frac{2 GM}{R}$ $∴$ $\frac{v _{e}}{v _{m}} = \frac{M _{e} R _{m}}{M _{m} R _{e}} \frac{v _{e}}{v _{m}} = \frac{81}{3.5} = 4.81$

Stream:MHT_CETSubject:PhysicsTopic:GravitationSubtopic:Energy & Potential

⏱ 2mℹ️ Source: PYQ_2011

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