A boy of mass M is applying a horizontal force to slide a box of mass M on a rough horizontal surface. The the floor is `mu` and the 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 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 body of mass M is applying horizontal force to slide a box of mass M_(1) on a rough horizontal surface The coefficient of friction between the shoe of the boy and the floor is mu and that between the box and the floor is 'mu_(1)' In which of the following cases is it certainly not possible to slide the box ? .

You want to apply a force on a box so that it moves with constant speed across a horizontal floor. The coefficient if kinetic friction between the box and the floor is mu_(k). Of the flur following cases, the force you apply on the box will be smallest when you

You want to apply a force on a box so that it moves with constant speed across a horizontal floor. The coefficient if kinetic friction between the box and the floor is mu_(k). Of the flur following cases, the force you apply on the box will be smallest when you

A horizontal force F pulls a 20 kg box at a constant speed along a rough horizotal floor. The coefficient of friction between the box and the floor is 0.25. The work done by force F on the block in displacing it by 2 m is