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## Homework Statement

A 0.61 kg mass attached to a spring (k = 27 N m-1) is performing SHM on a smooth horizontal surface.

Calculate the periodic time of these oscillations.

## Homework Equations

ω=2π/T

ω=2πƒ

## The Attempt at a Solution

I think I need to find out the angular frequency ω of the oscillations in order to calculate the periodic time using ω=2π/T, but I have no idea how to calculate ω since it doesn't give you the frequency ƒ ?