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===About Air Resistance===
: '''Air resistance''' is a [[Contact Force|contact force]].
: '''Air resistance''' can only happen to an object surrounded by air. It does not happen to objects underwater or in space.
===About Air Resistance===
: '''Air resistance''' is a [[force]] so it is [[Measure|measured]] in [[Newton]]s.
: '''Air resistance''' is a [[Contact Force|contact force]] because it can only exist when an [[object]] is moving in the [[air]].
: '''Air resistance''' increases with [[speed]]. The faster you travel the greater the '''air resistance'''.