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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceMedium2 minPYQ_2019

PhysicsMediumsingle choice

A body weighs $200 N$ on the surface of the earth. How much will it weigh half way down to the centre of the earth?

Options:

Answer:

Solution:

Weight $= m g = m \frac{G M}{R^{2}} = W$
At half way down to the centre, $W^{'} = \frac{m \frac{G M}{R^{3}} {(\frac{R}{2})}^{3}}{{(\frac{R}{2})}^{2}}$
$= m \frac{G M}{2 R^{2}}$
$= 100 N$

Stream:NEETSubject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: PYQ_2019

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