Two insects Chinki and Minki start to move in from point A in straight line paths in a circle as shown. Chinki  travels along AP and Minki along AM, on reaching point M, Minki insect changes its direction and moves parallel to the line AP and reaches the diametric opposite point B. The radius of circle is 5m and line AP makes an angle of 37° with the diameter AB. If the speed of  Minki insect along AMB is 2m/s constant then how much time (in sec.) will Minki take to reach B from A.