when earth moves around the sun is it work done why - Physics -

Question

when earth moves around the sun is it work done?why?

Abhishek Gupta · Accepted Answer

Dear Student! Anku
Work done is given as, W = Fx d x cosθ, where F is force,
d is displacement and θ is the angle between direction of
force and displacement
In your case Force is acting in radial direction, i e along a
radius Direction of motion is always in tangential direction By
geometry you know that angle between a radius and tangent (meeting
at same point on circumference) is 90°
Now, in grade 10 you will get to know that cos 90° = 0
Thus, work done = 0
Cheers!!