<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation
You are viewing an older version of this Lecture. Go to the latest version.

Friction

The resistance that one surface or object encounters when moving over another.

Atoms Practice
Estimated14 minsto complete
%
Progress
Practice Friction
Practice
Progress
Estimated14 minsto complete
%
Practice Now
Why can't trains go uphill?

James May looks at why trains can't go uphill.

Courtesy of Head Squeeze

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for Friction.
Please wait...
Please wait...

Original text