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What is the work done by …

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What is the work done by the force of gravity on a satellite moving round the earth? justify your answer

Posted by Mohit Mehmi 1 year, 8 months ago

CBSE > Class 09 > Science

2 answers

Preeti Dabral 1 year, 8 months ago

When a satellite moves around the Earth in a circular path, then the force of gravity acts on it directed towards the centre. The motion of the satellite is in the horizontal plane. Therefore, the force of gravity of Earth on the satellite and the direction of motion of satellite are perpendicular to each other. Therefore, net work done = Fs cos 900 = 0. That is, the work done by the force of gravity on a satellite moving around the Earth is zero.

Vaibhav Verma 1 year, 8 months ago

Work done would be 0 Since, satellite orbits earths in a circular path and from every point earth's radius to satellite is always perpendicular. Also, Since, work done Perpendicularly = Fd cos theeta. (Ø)Where cos theeta (ø) =90°= 0 Henceforth work done = 0 J

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