Question

Assume, Earth moves a circular path around the sun. Work done by the centripetal force of the Sun on Earth is positive.

• A. True
• B. False

Answer 1

The correct option is B

False

Work = Force * Displacement * Cosθ

Centripetal force of the sun acts perpendicular to the motion of earth.

So, θ = ${90}^0$

Work done = 0