" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
v = 72 km/h
m = 5 kh
Ec = ?
Pasamos las unidades al SI
v = (72 km/h) (1000 m) / (1 km) (1 h) / (3600 s) = 20 m/s
Calculamos la energía cinética.
Ec = 1/2 (m) (v)²
Ec = 1/2 (5 kg) (20 m/s)²
Ec = 2,5 kg (400 m/s)
Ec = 1000 Julios
La energía cinética es
Ec = 1000 Julios
v= 72km/h = 72000m/3600s = 20 m/s
Ec = 1/2 m*v² = 1/2*5kg*(20m/s)² = 1000 Jul