Quote:
Originally Posted by gorrilla
conveyor belts for traction,
luckily we are only miles from g&t conveyor systems (they make airline baggage handeling things)
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Like I said earlier, surface area doesn't matter.
HDPE and ice are as close as possible to an "ideal" surface from a physics standpoint. The reason surface area might matter on carpet is because the tread can interlock with the carpet.
On ice or HDPE the surface is totally slick, so there is no possible way for the tread to interlock with the HDPE, and thus surface area does not matter, only coefficient of friction and normal force.