a box of mass m is attached to the heavier block of mass 2m via a taut perfect string that passes over a frictionless pulley. the lighter box is moving to the right on a frictionless horizontal surface with an acceleration of g/3. A blowing wind puches the hanging block against the rough side wall , but does not affect the lighter box. the blowing force has a magnitude of mg and is directed at angle 34.6 degreesfrom vertical. the coefficient of kinetic friction between the wall and the heavier block is u