1. The problem statement, all variables and given/known data A 0.65-kg mass is hanging from a spring with spring constant 15 N/m. Then the mass is displaced from the equilibrium by 2 cm and let go. 2. Relevant equations angular frequency:ω=2∏/T 3. The attempt at a solution I found T: 2∏sqrtm/k, 2∏sqrt0.02/15N/m= 0.229429488s ω=2∏/0.229429488s=27.39rad/s I got the answer wrong but the units are suppose to be in rad/s. I feel like 0.65kg plays a role in the equation, but dont know where to place it. Where exactly did I go wrong.