Wyznacz srednia moc robotnika, ktory wnozil 3t wegla na wysokosc 2m w czasie 3h

Dane: [latex]h=s=2m[/latex] [latex]t=3h=180min=10800s[/latex] [latex]m=3t=3000kg[/latex] [latex]g=10 frac{N}{kg} [/latex] Wzory: [latex]F=m*g=3000*10=30000N[/latex] [latex]W=F*S=30000*2m=60000J[/latex] [latex]P= frac{W}{t}[/latex][latex]= frac{60000}{10800} =5,6W[/latex]