Задача id13324

A body of mass m oscillates without friction inside a box of mass M lying on a horizontal table surface. Springs with stiffnesses k1 and k2 are attached to the body, the ends of which are fixed to the side walls of the box (figure). Determine at what amplitude of vibration the box will begin to move on the surface of the table if the coefficient of friction between the box and the table is equal to m.

Answer. Format gif