In a horizontal cross compound steam engine, maximum fluctuation of energy is 20 kJ/cycle, the fluctuation of speed is to be kept within ± 0.5 percent of the mean speed of 10 rad/s, the radius of gyration is 2 m. The mass of the flywheel is:
1
6324 kg
2
2225 kg
3
1250 kg
4
5000 kg