What Is the Coefficient of Kinetic Friction in This Physics Problem?

[Spartan Erik]

Homework Statement

"A forward horizontal force of 50N is used to pull a crate, which weighs 250N, at a constant velocity across a horizontal floor. The coefficient of kinetic friction is:"

Homework Equations

Frictional force = coefficient of kinetic friction x normal force

The Attempt at a Solution

This problem seems too easy, that's why I'm wondering if I might be wrong:

Frictional force = coefficient of kinetic friction x normal force
50N = coefficient x 250N
50N / 250N = coefficient
coefficient = 0.2

Is that all? Thanks

 

[Perillux]

yup that is correct.