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**1. Homework Statement**

Two identical springs have attached mass M1 on the one and mass m2 on the other. We found that the psrings with mass m1 osciallates with a 2/5 frequency of the other spring.. Find the ratio of the mass of spring B to that of spring A ( M2/M1)

Can someone work this out, so i can learn how to do it, because i dont get which equations to use to get a M2/M1 ratio, i know one for frequency F2/F1 , but not this