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2014-11-26T19:04:14+08:00

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Without friction, an object in motion would never rest until it is stopped by another force. If there is no friction, there is also no way for a car to move forwàrd on the road---the wheels will just keep turning but there is no friction to allow it to move forward. The same thing would happen if you or I wanted to run. A frictionless world would be problomatic.





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