A laser sensor records the vertical position of a point on a vibration-testing platform relative to a fixed reference.
The table shows the measurements taken before the platform is adjusted.
| measurement | reading |
|---|---|
| number of complete oscillations | 18 |
| time for these oscillations | 2.4 s |
| highest vertical position during the oscillations | +2.5 mm |
| lowest vertical position during the oscillations | -6.5 mm |
The platform is adjusted so that the frequency doubles and the vertical distance between the highest and lowest positions increases by 2.0 mm.
Calculate the period and the amplitude of the oscillations after the adjustment.