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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationEnergy & PotentialMedium2 minPYQ_2021

PhysicsMediumsingle choice

The mass of a planet is six time that of the earth. The radius of the planet is twice that of the earth. If the escape velocity from the earth is ' $V_{e}$ ', then the escape velocity from the planet is

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Answer:

Solution:

$V_{e} = \frac{2 GM}{R}; V_{p} = \frac{2 GM _{p}}{R _{p}} ∴ \frac{V _{p}}{V _{e}} = \frac{M _{p}}{M} \cdot \frac{R}{R _{p}} = 6 \times \frac{1}{2} = 3 ∴ V_{p} = 3 V_{e}$

Stream:MHT_CETSubject:PhysicsTopic:GravitationSubtopic:Energy & Potential

⏱ 2mℹ️ Source: PYQ_2021

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