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How much force is required to push a 54-pound sofa across a carpeted floor?

User Onlyjus
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Sounds like a problem from Physics.  The force required to push a 54 lb sofa across a carpeted floor is most likely LESS than 54 lb.  It depends upon the amount of friction between the bottoms of the sofa legs and the carpet.  In a typical Physics problem, you'd be given the "coefficient of dynamic friction" to assist your determination of how much force is required to push the sofa across the carpet.
User Oswin Noetzelmann
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