How many days can an aircraft fly around the Earth along the equator if its speed

How many days can an aircraft fly around the Earth along the equator if its speed is 800 km / h? The length of the earth’s equator is 10,000 km.

Initial data: V (aircraft speed) = 800 km / h; L (length of the earth’s equator) = 10,000 km (exact value L = 40,075 km).

SI system: V = 800 km / h = 222.2 m / s; L = 10,000 km = 10,000,000 m (40,075,000 m).

If we consider the aircraft speed a constant, then the time of the aircraft movement can be calculated by the formula: t = L / V.

Let’s do the calculation:

t = 10000000 / 222.2 ≈ 45000 s = 0.52 days. (t = 40075000 / 222.2 = 180356 s = 2.09 days)

Answer: An airplane can fly around the Earth along the equator in 0.52 days (2.09 days).