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F = 0,8N
s = 15m
t = 40s
P = F×s : t
P = 0,8N ×15m : 40s
P = 12J ÷ 40s
P = 0,3 W
s (droga) = 15 m
t = 40s
p - moc
p = W : t
W = F ∧ s
W = 0,8 N ∧ 15 m = 12 J
p = 12 J : 40 s = 0,3 Wata
Odp: Twoja moc wynosi 0,3 Wata