4 ms·
Wow, that is surprising. I should have thought about it further. The radius of earth is 6371Km and 10Km works out to be 0.15% of it. So 20Km is reasonable.
by yitchelle 9y ago
Wow, that is surprising. I should have thought about it further. The radius of earth is 6371Km and 10Km works out to be 0.15% of it. So 20Km is reasonable.