Dane:
E=4,5kJ=4500J
v=54km/h=15m/s
Szukane:
m=?
Rozwiazanie:
E=1/2mv²
2E=mv²
m=2E/v²
m=2*4,5/15
m=0,6kg
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Dane:
E=4,5kJ=4500J
v=54km/h=15m/s
Szukane:
m=?
Rozwiazanie:
E=1/2mv²
2E=mv²
m=2E/v²
m=2*4,5/15
m=0,6kg