Students could try to recreate this fun 'friction book' activity in class, possibly as a strength test between groups of students. They could also give additional examples of uses in friction in ...

Conclusions In view of sliding friction, all sample measured basketball floors were in accordance with the DIN 18032 but neither of the evaluated handball floors met these criteria. High sliding ...

As the sample moves under the tip at velocity v, friction forces (F) between the tip and the sample cause the cantilever to twist. The amount of twisting, measured by the displacement (x) of the tip ...