Question

A mass is on a level plane it has a weight of 20N. A horizontal force of 7.3N causes the mass to begin slipping. Calculate the coefficient of static friction between the two surfaces

Answer 1

Horizontal force is proportional to vertical force,

$$F_{H} = \mu F_{V} \Rightarrow \mu = \frac{F_H}{F_V} = 0.365$$