Due to system updates this resource will not be available on the morning of Tuesday 29th September.
Direct legacy logins to https://elearning.theimi.org.uk/ will cease on 07/10/2020. After this date, course login will only be available through My IMI accounts. Should you have an old account
which needs upgrading, please contact the eLearning team on email@example.com.
The frictional value for the circumferential surface of a rolling component in contact with the track or road on which it runs. An example is the rolling resistance of a road tyre on various road surfaces.