Two wires are arranged as shown in the figure. The elongations in upper and lower wires are respectively
m1 and m2 are the slope of two perpendicular lines, if
Two spheres of masses m1 and m2 (m1>m2) respectively are tied to the ends of a light, inextensible string which passes over a light frictionless pulley. When the masses are released from their initial state of rest, the acceleration of their centre of mass is: