Two points, \(A\) and \(B\) located along the radius of a wheel, as shown in the Fig.52, have velocities of 80 and \(140 \mathrm{~m} / \mathrm{s}\), respectively. The distance between points \(A\) and \(B\) is \(300 \mathrm{~mm}\). The radius of wheel is

(a) \(400 \mathrm{~mm}\)

(b) \(500 \mathrm{~mm}\)

(c) \(600 \mathrm{~mm}\)

(d) \(700 \mathrm{~mm}\).

2 (02 A Fig.52 B