I guess infinate...because the lower block has no friction....and the upper one is a bit stuck to the bottom ..., so like whats to get the upper? Or it is whatever speed is proportional to that mu.
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Did I mention that I hate Chemistry?
Can we please have fight club ....so we can fight theirs? I can't believe I am going to fail a class! A class whose prerequisite is high school algebra.

a.k.a.- Pixie Tourette # i (imaginary number) Hotrod Honeys Texas Rollergirls