A torsional system with discs of moment of inertia \(I_{1}\) and \(I_{2}\), shown in the given Fig.17, is gear driven such that the ratio of the speed of shaft \(B\) to shaft \(A\) is ' \(n\) '. Neglecting the inertia of gears, the equivalent inertia of disc 2 at the speed of shaft \(A\) is equal to

(a) \(n I_{2}\)

(b) \(n^{2} I_{2}\)

(c) \(I_{2} / n^{2}\)

(d) \(I_{2} / n\)

Transcribed Image Text:

Fig.17 B