Energy extracted by braking. Can be regarded as brake wear - a pair of standard bicycle disc brake pads will last around 50 MJ, for cars around 5 GJ.
Energi hentet ut ved bremsing. Kan betraktes som bremseslitasje - et par standard skivebremseklosser for sykkel vil vare rundt 50 MJ, for biler rundt 5 GJ.