Calculation method of motor torque of reversible rolling mill?

Rolling torque:

Rolling speed: 0 ~ 3m/s

Work roll size: Ф 450× 650

Size of backup roll: Ф 850/820× 630

P=Mω, where m is the moment of inertia of the rolling mill and ω is the angular velocity.

M=mr^2。 M is the mass of the rolling mill and r is the radius of the rolling mill.