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m = 2kg
t = 2s
g = 10 [m/s²]
Roz.:
V = g × t = 10 [m/s²] × 2 s = 20 [m/s]
Ek = m × V² / 2 = 2 kg × (20 [m/s])² / 2 = 400 J
m = 2kg
t = 2s
g = 10 [m/s²]
rozwiązanie:
V = g*t
V=10m/s²*2s
V=20m/s
Ek = m × V² / 2
Ek=2kg*(20 [m/s])²/2
EK=400J