A connecting rod has a mass of 0.5 kg. The radius of gyration through its centre of gravity is 5 cm and its acceleration is 2 × 104 rad/s2. The equivalent two—mass system for the connecting rod has a radius of gyration 6 cm. What is the correction couple of the equivalent system?
(a) 11 Nm (b) 9 Nm
(c) 6 Nm (d) 2 Nm