Two particles P and Q describe simple harmonic motions of same period, same amplitude, along thesame line about the same equilibrium position O. When P and Q are on opposite sides of O at the samedistance from O they have the same speed of 1.2 m/s in the same direction, when their displacements arethe same they have the same speed of 1.6 m/s in opposite directions. The maximum velocity in m/s ofeither particle is