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m= 2000g = 2kg
K = 1200n/m
X= ?
h=5m
X= m.g /k = 2kg . 10m/s2 / 1200N/m =0,016m
la elongacion de la segunda esfera es la misma pues 2kg = 2000g
V= ?
V= √2. g. h = √2.10m/s2. 5m =10m/s