Describe in words how the magnitude of the frictional force that the table's surface exerts on the block varies in opposition tot he forces exerted by the spring pulling on the block.
As the force exerted by the spring increases, the amount of friction exerted on the object by the surface increases. once the force of the spring overcomes the force of the friction however, both forces lessen. When there is constant motion, there is constant friction. These support Newton's Third Law which says that the Force of object A on object B is equal and opposite to the Force of object B on object A.
Thursday, February 7, 2008
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1 comment:
Excellent! 4/4
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