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80km/s= 22.22m/s
si sabemos que la formula de la energia cinetica es K=(0.5*mv²)
solo remplazamos datos.
es decir:}
K=(0.5*1100(22.22)²)
K=271604.93 J
m = 1100 kg
v = 80 km/h
Ec = ?
Pasas los km/h a m/s
v = (80 km/h) (1000 m) / (1 km) (1 h) / (3600 s) = 22,22 m/s
Calculamos energía cinética.
Ec = 1/2 (m) (v)²
Ec = 1/2 (1100 kg) (22,22 m/s)²
Ec = 550 kg (493,73 m²/s²)
Ec = 271551,5 Joules