A boy of mass M is applying a horizontal force to slide a box of mass M' on a rough horizontal force to slide coefficient of friction between the shoes of the boy and the floor is mu and that between the box and the floor is mu. In which of the following cases it is certainly not possible to slide the box ?

A boy of mass M is applying a horizontal force to slide a box of mass

1.	A boy of mass M is applying a horizontal force to slide a box of mass M' on a rough horizontal force to slide coefficient of friction between the shoes of the boy and the floor is mu and that between the box and the floor is mu. In which of the following cases it is certainly not possible to slide the box ?
Answer» `MU LT mu', M lt M'` `mu GT mu', M lt M'` `mu lt mu', M gt M'` `mu gt mu', M gt M'` ANSWER :A