Question

A large box sits on a rough floor. A person pushes on the box with a horizontal force of magnitude 50 N. The box remains at rest. What is the magnitude of the friction force

Answer 1

The magnitude of the frictional force is
`F_f \ge 50 \ N`

Step-by-step explanation:

From the question we are told that

The force exerted on the box is
`F = 50 \ N`

Generally for the box to remain at rest then it means that the frictional force is greater than or equal to the force applied to move it i.e

`F_f \ge F`

=>
`F_f \ge 50 \ N`