2 Eddy Current Brake In electromagnetic \"eddy current brake\" consists of a solid spinning wheel of conductivity 0 and thickness d. A uniform field Bo is applied perpendicular to the surface of the wheel over a small area A located a distance 3 from the axis. 2.1 Show that the torque on this disk is given (very approximately) by 1' = awB2s2Ad. 2.2 Estimate how high Bo should be for this kind of brake to be functional as a car brake, given a magnet size of 20 cm2 per brake. (*\" Estimate" here means just that make some reasonable guesses about the various parameters you need. Think about real cars in the real world! Order of magnitude is what we're after, don't fuss about factors of 2 or 3*) Do you foresee any problem as the car slows down