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The staring torque is 900 N m. What is the kinetic energy after 10 s ?   

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A flywheel fitted to a steam engine has a mass of 500 kg and radius of gyration 300 mm. The staring torque is 900 N m. What is the kinetic energy after 10 s ?   

         (a) 225 kJ                        (b) 450 kJ

         (c) 900 kJ                        (d) 1800 kJ

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