# Spring- finding k and mass?

An object of mass 2.20 kg is oscillating freely on a vertical spring with a period of 0.690 s. Another object of unknown mass on the same spring oscillates with a period of 1.20 s.

Find the spring constant k.

(b) Find the unknown mass.

Thank you in advance

Find the spring constant k.

(b) Find the unknown mass.

Thank you in advance

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