Spring constant- calculating velocity

[330s]

Hello all, for my experiment my group needed to use Hookes spring constant to help us find the energy in the elastics for our contraption we made. We found that the launch speed to be 15.24m/s. I was wondering if this would be changed if we fired at different angle or would the launch velocity always be the same.
Thanks

 

[vlado_skopsko]

If you measure the displacement from the equilibrium position, which will be different for different angles, the speed will be the same.