physics please help meee?

A 0.220 kg metal rod carrying a current of 10.0 A glides on two horizontal rails 0.520 m apart. What vertical magnetic field is required to keep the rod moving at a constant speed if the coefficient of kinetic friction between the rod and rails is 0.100?
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2007-03-05 06:30:52 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Physics

1 answers

We need some calculus

2007-03-05 06:33:29 · answer #1 · answered by Jared P 5 · 0⤊ 0⤋

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