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    If there is air resistance (friction) can we still say that the system is oscillating freely?
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    (Original post by >>MMM<<)
    If there is air resistance (friction) can we still say that the system is oscillating freely?
    No. It's only oscillating freely, in the strictest sense, when there is no friction. There must be no force acting on the system other than the restoring force.
 
 
 
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