A two$-$pole, symmetrical induction motor is supplied by balanced, $60-$Hz stator currents

that produce a ccw rotating mmfs$.$ The rotor is rotating ccw at $0\mathrm{.}93$e$.$

a$.$ Determine the frequency of the rotor currents. $(4\mathrm{.}20$ Hz$)$

b$.$ Determine the angular velocity of mmfs and mmfr relative to an observer on the stator.

$(377$ rad$/$s$)$

c$.$ Determine the angular velocity of mmfs and mmfr relative to an observer on the rotor.

$(26\mathrm{.}39$ rad$/$s$)$