`F_k = mu_k * N `

Enter a value for all fields

The Kinetic Friction calculator computes the force of kinetic friction that occurs when two objects are moving relative to each other and rub together.  

INSTRUCTIONS: Choose units and enter the following:

• (μ_k) Kinetic Friction Coefficient
• (N) Normal Force

Kinetic Friction (F_k): The calculator computes the kinetic force of friction in Newtons.  However, this can be automatically converted to other force units via the pull-down menu.

Reference

• Light and Matter(Dr. Benjamin Crowell) Chapter 5.2 Classification and behavior of forces
• Light and Matter(Dr. Benjamin Crowell) Chapter 5.3 Analysis of forces
• The definition of Kinetic Friction was taken from Wikipedia (https://en.wikipedia.org/wiki/Friction#Kinetic_friction).