Answer to Question #25679 in Mechanics | Relativity for nil

Question

A block of mass m is attached with a mass less spring of force constant k. The place over a rough inclined surface for which the coefficient of friction is 3/4. Another block of mass M is attached to the other end of the spring and the spring is passed over a pulley which is attached to the inclined plane. Find the minimum value of M in terms of m, required to move the block m up the plane.(Neglect mass of spring and pulley and friction in pulley).