1. The problem statement, all variables and given/known data A solid disk of diameter equal to 500 mm and a mass of 60 kg is to be used as a flywheel in an energy recovery device. Determine the torque required to accelerate the rotation of the flywheel, about its axis, from rest to 250 rpm in 6 revolutions. 2. Relevant equations τ=Iα 3. The attempt at a solution r = 0.25 I = m *r2 I= 60 * 0.252 I = 3.75 3.75 * 26.17993 =98 I'm not really sure what to do, I can't get the correct answer.