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**Magnetism problem for General Physics 2!!**

## Homework Statement

Suppose the rod in the figure has mass m= 0.40kg and length 20cm and the current through it is I= 40A .

(Intro 1 figure)

If the coefficient of static friction is us= 0.55, determine the minimum magnetic field (not necessarily vertical) that will just cause the rod to slide. Give the magnitude of B.

## Homework Equations

I am not really sure what equations I am supposed to use for this problem..I don't really know how to get started...can someone help me please!!!

I think F=ma....using the static coeff. us=.55

Maybe..F=qv x B

or F = qvB sin (theta)