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20935 - de seci (U.S) - 2022-04-07 Physique Chimie : "Physics help" Two objects, X and Y, are held at rest on a horizontal frictionless surface with a spring compressed between them. The mass of X is 2/5 times the mass of Y. The mass of X is 2/5th times the mass of Y. After the spring is released, the ratio of their respective speeds is Vx/Vy will be? I know I have to use the formula m1v1=-m2v2 but after that I'm stuck

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