Question

m=1000 кг U=36 км/ч найти E k-?

Answer 1

E = 1/2 * m * U^2
U = 36 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 10 m/s

E = 1/2 * 1000 kg * (10 m/s)^2 = 50,000 J