The thin-walled cylinder with a mass m = 12kg and base diameter D = 30 cm rotates according to the equation F = A + Bt + Ct3, where A = 4 rad, B = -2 rad / s and C = 0.2 rad / c ^ 3. We define an action on the cylinder torque M at time t = 3c.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.