A particle of mass 10 g is kept on the s...

A particle of mass `10 g` is kept on the surface of a uniform sphere of mass `100 kg` and radius `10 cm`. Find the work done against the gravitational force between them to take the particle far away from the sphere.

`13.34xx10^(-10)` J

`3.33xx10^(-10)` J

`6.67xx10^(-9)` J

`6.67xx10^(-10)` J

Text Solution

Verified by Experts

The correct Answer is:

Work done = Change in GPE = `U_oo - U_R`
`W=0-((GMm)/R)=(GMm)/R = (6.67xx10^(-11)xx100xx10^(-2))/10^(-1) =6.67xx10^(-10)` J

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