Mastering Physics Solved! The motion of a nightingale's wingtips can be modeled as simple harmonic

The motion of a nightingale's wingtips can be modeled as simple harmonic motion. In one study, the tips of a bird's wings were found to move up and down with an amplitude of 8.6 cm
and a period of 0.86 s.
What is the wingtips' maximum speed?
What is the wingtips' maximum acceleration?