Consider four "special positions" of the marble:(A) - the marble begins to fall(B) the cord begins to stretch(C) - the equilibrium position(D) the marble comes to a momentary stopas shown below.Assume that the zero level of the gravitational potential energy of the system "marble-Earth" is at the levelof the table.31The marble reaches its maximum speed:at position BAObetween positions A and B. Бat position CXCDObetween positions B and COat position DObetween positions C and D

A marble attached to a cord begins to fall from point A all the way to point D (which is the ground…

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