In the automotive windscreen wiper application, a rubber wiper blade slides on a smooth glass surface to remove water a

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In the automotive windscreen wiper application, a rubber wiper
blade slides on a smooth glass surface
to remove water and/or contaminations from the windscreen.
Wiper blade construction consists of a
slender rubber compound strip with a carbon filler material
supported by the wiper arm. Typically, the
arm applies loads between 10 N and 20 N distributed almost
uniformly along the blade. The wiper
speed can vary from 0.5 m s–1 to 1 m s–1 generating a coefficient
of friction of about 1.4 in dry
conditions, while 0.15–0.2 in wet conditions (either water or
chemical liquid).

Describe the significant friction mechanisms for the windscreen
wiper operation scenarios. Comment
on the implications of the entire wiper system for electric
vehicles.