The below Fig. 54 shows a circular disc of \(1 \mathrm{~kg}\) mass and \(0.2 \mathrm{~m}\) radius undergoing unconstrained planar motion under the action of two forces as shown. The magnitude of angular acceleration \(\alpha\) of the disc is

(a) \(50 \mathrm{rad} / \mathrm{s}^{2}\)

(b) \(100 \mathrm{rad} / \mathrm{s}^{2}\)

(c) \(25 \mathrm{rad} / \mathrm{s}^{2}\)

(d) \(20 \mathrm{rad} / \mathrm{s}^{2}\).

Transcribed Image Text:

5 N Fig.54 10 N