Question

What is the work done by tge force of gravity on a satellite moving round the earth

Answer 1

Hey buddy
here's the answer

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The work being done is $ZERO$

just bcoz
the force of gravity is perpendicular to the satellite and the satellite is moving in circular motion
therefore , F cos theta = 0

and automatically the work done is 0

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HOPE IT HELPS...

Answer 2

❤❤❤☆$\red {HELLO\:DEAR}$☆❤❤❤

❤❤❤Work is done whenever the given two conditions are satisfied:

❤❤❤

❤❤❤ (i) A force acts on the body.❤❤❤

❤❤❤(ii) There is a displacement of the body by the application of force in or opposite to the direction of force.❤❤❤

❤❤❤If the direction of force is perpendicular to displacement, then the work done is zero.❤❤❤

❤❤❤When a satellite moves around the Earth, then the direction of force of gravity on the satellite is perpendicular to its displacement.❤❤❤

❤❤❤Hence, the work done on the satellite by the Earth is zero.❤❤❤

❤❤❤☆$\green {VISHU\:PANDAT}$☆❤❤❤

❤❤❤ ☆$\blue {FOLLOW\:ME}$☆❤❤❤