Question

What is the work done by the force of gravity on satellite movong around the earth?

Answer 1

the work done by the force of gravity on satellite moving around the earth is zero.

Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

The satellite moves around the earth in a circular path.

The gravitational force of the Earth is the centripetal force.

Then at every point of the circular orbit, centripetal force act on the satellite at right angles to the direction of motion of the satellite, θ = 90º.

We Know, W = F s cos θ
           = F s cos 90º
           = F s (0)
           = 0 ...✔

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Thanks...✊