Respuesta :
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
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]