1.

A 10 kg satellite completes one revolution around the earth at a height of 100 km. In 108 minutes. What is the work done by the gravitational force of the earth?

Answer»

Listing out the Formula


Work Done = FORCE X Displacement


Force = MASS x Acceleration


Considering the displacement of this Sattelite


One COMPLETE circle = Displacement = 0


∴ Work Done by Gravity is Zero


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