Question

va roggggf multt!!!!​

Answer 1

Explicație:

72 km/h = 72000/3600= 20 m/s

Ec autoturism = m×v^2 /2 =1000 kg × 20^2 m/s /2 = 200000 J

36 km/h = 36000/3600 = 10 m/ s

5t = 5000 kg

Ec camion = m× v^2/2 = 5000 kg×10^2 m/s/2 = 250000 J

200000<250000 => Ec camion > Ec autoturism