What is the relationship between magnetic fields and wires?

[jmiller5001]

Homework Statement

Homework Equations

Fb= IL X B ?

The Attempt at a Solution

I did part A already.

Not really sure where to start on B or C.

 

[tiny-tim]

welcome to pf!

hi jmiller5001! welcome to pf!

for (b), do a free body diagram for when the wire is just about to slip down the plane

for (c), do a free body diagram for when the wire is just about to slip up the plane

 

[jmiller5001]

Okay, I don't really know where that gets me though.

 

[tiny-tim]

well, what does your fbd look like?