There is a spring with 2 masses with a combined mass of 0.69kg. The vertical oscillation has a frequency of 1.5Hz. The amplitude of the oscillation is 30mm.
Now this spring is attached to a horizontal support rod that can be made to oscillate vertically.
how do i work out the phase difference with the driver (the spring)?
The Attempt at a Solution
If it oscillates with a frequency of 0.2Hz the amplitude will be less than resonance and there will be forced vibrations. , but how do i work out the phase difference with the driver (the spring)?