what is work done by earth revolving around sun? (a) positive (b) negative (c) zero
Answers
Answer:
positive response is there
Explanation:
8im..mhij...
Answer:
Work done is equal to zero assuming earth revolves around the sun in a perfect circle.
Work done is equal to zero assuming earth revolves around the sun in a perfect circle.As Work=Force∗Displacement∗cosθ
Work done is equal to zero assuming earth revolves around the sun in a perfect circle.As Work=Force∗Displacement∗cosθWhere θ is the angle between force and displacement .
Work done is equal to zero assuming earth revolves around the sun in a perfect circle.As Work=Force∗Displacement∗cosθWhere θ is the angle between force and displacement .In this case θ=90degree
Work done is equal to zero assuming earth revolves around the sun in a perfect circle.As Work=Force∗Displacement∗cosθWhere θ is the angle between force and displacement .In this case θ=90degreeAs centripetal force is involved where earth is pulled towards the sun and direction of motion at each point is tangential to the orbit and as tangent makes 90degree with radius θ=90degree.
cos 90° = 0
Thereby F∗S∗cos90=F∗S∗0=0
Thereby F∗S∗cos90=F∗S∗0=0HENCE NO WORK IS DONE
Explanation:
Hope this may help you....