Odpowiedź:
Zad 1
S = 500 m
F = 50 N
W = ?
W = F * s
W = 500 * 50 = 25000(J)
Zad 2
W = 3000J
S = 6m
F= ?
W = F * s
F= [tex]\frac{W}{s}[/tex]
F = [tex]\frac{3000}{6}[/tex] = 500 (N)
Zad 3
F = 60N
W = 90J
W = Ep
Ep = mgh
90J = 60N * h
h = 90/60
h = 1,5(m)
