Friday, January 8, 2010

How is that an object pulled at constant velocity...?

Have a pulling force equal to sliding friction? Wouldn't that mean that the object should not be moving?





Please explain in middle school terms.How is that an object pulled at constant velocity...?
if its pulled at constant velocity then theres no acceleration. Force is mass x acceleration. If there is a net force, there is an acceleration. Since the two forces (pulling force and friction force) cancel out, there is no net force. Therefore there is no acceleration.
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