The coefficient of friction calculates the force of static ...

we used the following equation; ω1 = angular velocity of the motor. ω2 = angular velocity of the ring. r = the radius of the motor wheel. R = the radius of the ring . ω2 = r ω1 . RR . Frequency of ring/Hz Freq of disc/Hz 0.297 14.29 0.334 16.55 0.394 19.04 0.435 20.97 Graph 1. Angular frequency of big ring plotted verse wobble frequency of disc ................
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