Respuesta :

AL2006
KE = (1/2) (mass) (speed)²

KE = (1/2) (20 kg) (40 m/s)²

KE = (1/2) (20 kg) (1,600 m²/s²)

KE = (10 kg) (1,600 m²/s²)

KE = 16,000 Joules

Answer:

[tex]kinetic \: energy = \frac{1}{2} m {v}^{2} \\ \frac{1}{2} \times 20 \times 40 \\ = 10 \times 40 \\ = 400joule \\ thank \: you[/tex]