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comets move around the sun in highly elliptical orbits.the gravitational force onthe comets due to sun is not normal to the velocity of comet,yet the work done by sun on comet over the complete orbit is zero.why??

comets move around the sun in highly elliptical orbits.the gravitational force onthe comets due to sun is not normal  to  the velocity of comet,yet the work done by sun on comet over the complete orbit is zero.why??


 

Grade:11

1 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

F.d=Fdcos90=0

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Sagar Singh

B.Tech, IIT Delhi

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