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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceEasy2 minPYQ_2020

PhysicsEasysingle choice

A man goes to a height equal to the radius of the earth from its surface. The weight of the person at that height relative to his weight on the surface of earth is

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Answer:

Solution:

At the surface of the earth, the weight of the person.
$W = mg \Rightarrow \frac{mGM}{R^{2}}$

At a height h
weight $W^{'} = m g^{'}$ $\Rightarrow \frac{m G M}{(R + h)^{2}}$

$∴ \frac{W^{'}}{W} = \frac{R^{2}}{(R + h)^{2}}$
When $h = R, \frac{W^{'}}{W} = \frac{R^{2}}{(2 R)^{2}} = \frac{1}{4}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: PYQ_2020

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