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===About Driving Force===
: '''Driving force''' is a [[force]] so it is [[Measure|measured]] in [[Newton]]s.
: '''Driving force''' is a [[Contact Force|contact force]] because an engine needs to make contact against a surface and use [[friction]] to [[accelerate]] the motion of the [[object]].
: '''Driving Force''' can cause a vehicle to [[accelerate]] and can act to counter [[Air Resistance|air resistance]] and [[friction]] to keep a vehicle travelling at a constant [[speed]].