Question: A large box of mass M is pulled across a horizontal, frictionless surface by a horizontal rope with tension T. A small box of mass m sits on top of the large box. The coefficients of static and kinetic friction between the two boxes are µs and µk, respectively.
Part A: Find an expression for the maximum tension T max for which the small box rides on top of the large box without slipping.
I need help to find an expression for the maximum tension.