Figure 4
From: Collision-enhanced friction of a bouncing ball on a rough vibrating surface
(Figure prepared using Veusz https://veusz.github.io).
Simulations of 2 bouncing balls in a 60 mm wide periodic box. (a) frictional impulse due to a normal bounce (blue) and a bounce following a collision with the other ball (red). (b) Separation probability between the two particles on a log–log scale. We compare elastic collisions with (magenta) and without (yellow) rolling, and an inelastic collision without rolling (cyan). The relative contact velocity friction mechanism provides the most significant loss mechanism.
