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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationEnergy & PotentialMedium2 minPYQ_2021

PhysicsMediumsingle choice

The ratio of the acceleration due to gravity on two planets $P_{1}$ and $P_{2}$ is $K_{1}$ . The ratio of their respective radii is $K_{2}$ . The ratio of their respective escape velocities is

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Solution:

Since escape velocity from the surface of a planet can be written as $v_{e} = 2 g R$ $ratio \frac{v _{e p_{1}}}{v _{e p_{2}}} = \frac{2 g _{p_{1}} R _{p_{1}}}{2 g _{p_{2}} R _{p_{2}}} = K_{1} K_{2}$

Stream:MHT_CETSubject:PhysicsTopic:GravitationSubtopic:Energy & Potential

⏱ 2mℹ️ Source: PYQ_2021

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