calculation power

[MARCOC]

Hi.
Let's talk about rotary motion. ..arm 1.3m there a mass of 520kg I have to carry in rotation to 40 rpm and I have to get to regimen in 3 sec... What power do I need?

I would like help in setting calculations

What do I lose?

thanks in advance

 

[Fulvio Romano]

calculates the moment of inertia of the system, equal to that of the mass plus that of the arm.
the torque to be applied is equal to the moment of inertia for the angular acceleration
the power is equal to the pair for the angle speed.
find the maximum, and multiply for a security factor.