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>>Gravitational Potential Energy
>> $Energy required to move a body of mass m$

Question

Energy required to move a body of mass m from an orbit of radius 2R to 3R is:

A

$\frac{G M m}{1 2 R ^{2}}$

B

$\frac{G M m}{3 R ^{2}}$

C

$\frac{G M m}{8 R}$

D

$\frac{G M m}{6 R}$

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Updated on : 2022-09-05

Solution

Verified by Toppr

Correct option is D)

$Energy required = (Final potential-Initial potential)m$
$Energy required = - \frac{G M m}{3 R} - \frac{- G M m}{2 R} = \frac{G M m}{6 R}$

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