Oblicz ile wyniosla moc jesli czas wyniosl 40 sekund, sila to 20N a przecuniecie ciala to 400cm
pls help
pls help
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moc = praca / czas
P = W / t
praca = siła * droga
W = F * s
W = 20N * 4m * 1 = 80 J
P = 80 J / 40 s = 2 W