Ek = (m × v²) ÷ 2 - wzór na energię kinetyczną
m = 3 kg
v = 20m/s
Ek = (3 kg × (20m/s)²) ÷ 2 = (3 kg × 400 m²/s²) ÷ 2 = 1200 J ÷ 2 = 600 J
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Ek = (m × v²) ÷ 2 - wzór na energię kinetyczną
m = 3 kg
v = 20m/s
Ek = (3 kg × (20m/s)²) ÷ 2 = (3 kg × 400 m²/s²) ÷ 2 = 1200 J ÷ 2 = 600 J