ok i'm doing a lab
were walking different displacements
I observed that the displacements were on different grades of steepness
this would decrease the coefficent of kinetic friction?
The coefficient of kinetic friction will not change, but the different inclines will change the magnitude of the normal force perpendicular to the slope/ramp.
Assuming that no other forces act on you while you are walking down the slope/ramp, a free body diagram will show that the normal force has the same magnitude as the component of the force of weight perpendicular to the slope/ramp.
Now you realize that going up slopes is dificult, one looses "footing" and slips. What is happening is that Weight is not normal to the slope, and friction depends on the normal component.
To determine whether the change in steepness affects the coefficient of kinetic friction, we need to understand the relationship between these two factors.
The coefficient of kinetic friction is a constant value that represents the frictional force between two surfaces in contact when they are in relative motion. It depends on the nature of the surfaces and their roughness, not on the steepness of the incline.
When an object is on an inclined plane, its weight can be resolved into two components: the force perpendicular to the incline (normal force), and the force parallel to the incline (component of the weight). The frictional force acts opposite to the direction of the component of the weight parallel to the incline.
The steepness of the incline affects the gravitational force component parallel to the incline, but it does not directly affect the coefficient of kinetic friction. The coefficient of kinetic friction remains the same as long as the nature of the surfaces in contact does not change.
Therefore, changing the grade or steepness of an incline will not directly affect the coefficient of kinetic friction.