Odpowiedź:
Ek=1/2mv^2=1/2x0,1x10^2= 5J
Ep=mgh=0,1x9.81x20=19,62J
E=Ek+Ep=24,62J
Wyjaśnienie:
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Odpowiedź:
Ek=1/2mv^2=1/2x0,1x10^2= 5J
Ep=mgh=0,1x9.81x20=19,62J
E=Ek+Ep=24,62J
Wyjaśnienie: