Odpowiedzi

2009-12-26T20:35:18+01:00
V = 100 km/h ≈ 27,8 m/s
Fw = T = 2 kN = 2 000 N
η = 95 % = 0,95

η = Ewy / Ewe
Ewe = Ewy / η

Ewe = F • s
Ewy = Fw • s
F • s = Fw • s / η
F = Fw / η
F = 2 000 / 0,95 ≈ 2 105 N

P = F • v
P = Fw / η • v
P = 2 000 / 0,95 • (27 i 7/9) ≈ 58 480 N ≈ 80 KM