What potential energy relative to the Earth does a bird weighing 600 g, flying at an altitude

What potential energy relative to the Earth does a bird weighing 600 g, flying at an altitude of 20 m, have? what is its kinetic energy at a speed of 4 m / s?

Data: mp – the mass of the indicated bird (mp = 600 g; in the SI system mp = 0.6 kg); h – bird flight height (h = 20 m); V – bird speed (V = 4 m / s).

Const: g – acceleration due to gravity (g ≈ 10 m / s2).

1) Potential energy of the specified bird: Ep = mp * g * h = 0.6 * 10 * 20 = 120 J.

2) The kinetic energy of the bird: Ek = mp * V ^ 2/2 = 0.6 * 4 ^ 2/2 = 4.8 J.

Answer: The sought potential energy of the bird, according to the calculation, is 120 J, the kinetic energy is 4.8 J.