Physics

To determine the frictional force acting on the object, we can analyze the given information.

 

1. Given Information:

Weight of the object () = 20 N (which equals the normal force since the surface is horizontal).

Applied force () = 4 N to the left.

Coefficient of kinetic friction () = 0.25.

 

2. Calculate the maximum frictional force ():

The frictional force when the object is at rest can be determined using the formula: