Friction’s Work T-F

Friction’s Work T-F#

Part 1#

When an object is moved across a surface, does the frictional force always perform negative work?

Answer Section#

  • No, it depends on the direction of the motion and friction.

  • Yes, it is always negative.

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.