As the disk slips, there is a friction force acting to the left on the disk at the contact point. During slipping, the friction force opposes the direction of motion of the contact point - that is, ...

generally confirm the existence of a non-contact friction force between surfaces separated by very small distances. What's behind it? As with many mysteries of physics, this one seems to have ...

Friction between loops of yarn give knit fabrics the ability to take on a variety of shapes even when no force is applied.

The answer to that question depends on the height at which the force P is applied to the block and on the coefficients of static friction at the feet. We need to work out the problem two times in ...

He describes how friction opposes or prevents motion, and demonstrates the force in action with an experiment involving two interleaved books. Students could try to recreate this fun 'friction ...

A trio of physicists from the University of Rennes, Aoyama Gakuin University, and the University of Lyon have discovered, ...

1), were the main topics of debate at the recent Trends in Nanotribology conference, held at the International Centre for Theoretical Physics ... such as friction force microscopes, surface ...

Friction can sometimes be ... so that the reading is zero when there is no force acting on it. Looking for extra resources to supercharge your physics lessons? In this series of short explainer ...