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s=20m
w=300J
szukane:
f
w=f*s
f=w:s
f=300J:20m
f=15N
x = s = 20m
W = 300J
Szukane:
F = ?
Wzory:
W = F * s
F = W/s
Rozwiązanie:
F = 300J / 20m
F = 15N