Answer :
The coefficient of friction between the wall and the block is 125N.
What is coefficient friction?
A measure of how much friction there is between two surfaces is called a coefficient of friction. The resistance to motion at the intersection of two surfaces made of similar or different materials is what you are calculating when you find the coefficient of friction.
What is horizontal force?
The term "horizontal force" refers to a force applied in a direction perpendicular to the horizon. Two components—a horizontal component and a vertical component—make up the force applied to a body.
Mass of block ( m ) = 5 Kg
Coefficient of friction ( μ ) = 0.4
Acceleration due to gravity (g) = 10 m/s²
To Find :- Minimum horizontal force ( F )
According to diagram , Block is balanced by equal and opposite forces
F= N
f=mg
We know , f max = μN
mg=μF
F= mg/u
F= 5*10*10/4
=125N
Therefore, the coefficient of friction between the wall and the block is 125N.
Learn more about coefficient friction from the given link.
https://brainly.com/question/19392943
#SPJ4
