At what height is the potential energy of an aircraft with a mass of 50 tons equal to 500 MJ.

Initial data: m (aircraft weight) = 50 t (50 * 10 ^ 3 kg); Ep (potential energy, which the aircraft should have) = 500 MJ (500 * 10 ^ 6 J).

Reference values: g (acceleration due to gravity) ≈ 10 m / s2.

Let us express the height at which the plane should be from the formula: En = m * g * h, whence h = En / (m * g).

Calculation: h = 500 * 10 ^ 6 / (50 * 10 ^ 3 * 10) = 1000 m (1 km).

Answer: The potential energy of the aircraft will be 500 MJ at an altitude of 1 kilometer.