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| style="height:20px; width:200px; text-align:center;" |The spring will stretch to a certain length and then stay the same due to two opposing [[force]]s.
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: If one [[force]] were bigger than the other the [[elastic]] [[object]] would [[accelerate]] rather than stretch. This is what happens when a rubber band is flicked. It begins in '''force equilibrium''' stretched by two fingers pulling in opposite directions. When one finger is removed there are no longer two opposing [[force]]s so the rubber band [[accelerate]]s.