Question

A person has a mass of 65 kg. The coefficient of static friction µs, between their
shoes and the floor = 0.8. Calculate the force required to slide them across the floor?

Answer 1

The force required to slide them across the floor must be at least greater than the force of static friction, which for horizontal surface is

$$f=\mu_sN=\mu_smg=510\text{ N}.$$