oblicz energie potencjalna i energie kinetyczna samolotu concorde o masie 170000kg lcaceg z predkoscia 650m/s na wsokosci 2000m nad powierzchnia ziemi
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m = 170 000 kg
V = 650 m/s
h = 2000 m
g = 9,81 m/s²
Ep, Ek = ?
Ep = m * g * h
Ep = 170000 kg * 9,81 m/s² * 2000 m
Ep = 3335400000 J
Ep = 3335,4 MJ ≈ 3,3 GJ
1 MJ = 10⁶ J
1 GJ = 10⁹ J
Ek = m * V²/2
Ek = 170000 kg * (650 m/s )² / 2
Ek = 17 *10⁴ kg * 422500 m²/s² / 2
Ek = 71825 *10⁶ J /2
Ek = 35912,5 MJ ≈ 35,9 GJ