When we talk about closed economy, it means that the economy is self-sufficient. At a closed economy, no imports from the outside are brought inside a nation and no exports are sent out as well
We know that g = LcosΘ <span>where g, L and Θ are centripetal gravity length, and angle of object </span><span>ω² = g/LcosΘ </span> <span>ω = √(g / LcosΘ) </span>