Several other parameters can also be adjusted. b is the amount of friction in Ns/m (this could be air resistance or sliding friction or friction in the spring itself); vo in \(\t...Several other parameters can also be adjusted. b is the amount of friction in Ns/m (this could be air resistance or sliding friction or friction in the spring itself); vo in m/s is the initial velocity of the mass, and Fo is the magnitude of the driving force in Newtons.