On listening to his friend, Amar said “The moon does not work as it goes round the earth”, because

A: Moon displaces perpendicular to the direction of force

B: No force acts on the moon

C: Momentum change is zero

Which of the statement/s is/are correct?

We have, 

Work done = $\mathrm{F}.\mathrm{s}.\mathrm{cos\theta }$

Where W = 0, for $\mathrm{\theta }=90°$.

Here, In this case, work done by the moon is scientifically zero as the angle between displacement and force is 90^o

and momentum is not zero as the moon has mass and posses velocity.

Therefore, statements A and C are correct.