A wire of `9.8 xx 10^(-3) kg` per meter mass passes over a fricationless pulley fixed on the top of an inclined frictionless plane which makes an angle of `30^(@)` with the horizontal. Masses `M_(1)` & `M_(2)` are tied at the two ends of the wire. The mass `M_(1)` rests on the plane and the mass `M_(2)` hangs freely vertically downwards. the whole system is in equilibrium. Now