Odpowiedź :
[tex]dane:\\F = 2 \ 000 \ N\\h = 15 \ m\\szukane:\\W = ?\\\\W = F\cdot h\\\\W = 2 \ 000 \ N\cdot15 \ m\\\\W = 30 \ 000 \ J = 30 \ kJ[/tex]
[tex]dane:\\F = 2 \ 000 \ N\\h = 15 \ m\\szukane:\\W = ?\\\\W = F\cdot h\\\\W = 2 \ 000 \ N\cdot15 \ m\\\\W = 30 \ 000 \ J = 30 \ kJ[/tex]