1) M = 0 L = 18 +2xM = 18
2) Pour M = 2 kg ; 1.5 kg ; 800 g = 0.8 kg
on L = 22 ; 21 ; 19.6
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Bonjourlongueur du ressort = 18 cm
pour 2 kg = 18 + 4 = 22 cm
pour 1.5 kg = 18 + 3 = 21 cm
pour 800 g = 18 + 1.6 = 19.6 cm
1) M = 0 L = 18 +2xM = 18
2) Pour M = 2 kg ; 1.5 kg ; 800 g = 0.8 kg
on L = 22 ; 21 ; 19.6