Question

What is the amount of work done by force of gravity on satellite?

Answer 1

here is your answer ⤵️

➡️ The work done by the force of gravity on satellite is Zero.

Required explanation ⤵️

➡️ when the satellite moves around the earth the force of gravity acts on it along the radius of it orbit. The direction of motion is along the tangent to the orbit at any point. thus, force acts perpendicular to displacement. hence, work done on the satellite is Zero.

___hope it help ✌️

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 ...✔

_________
Thanks...✊