16.1.6
The cone, whose mass m = 10 kg, and the radius of the base R = 1 m, rotates about the axis
Symmetry according to the law? = 4sin 2t. Determine the main moment of the external
Forces relative to the axis of rotation at time t =? / 4 s, if the moment of inertia of the cone Iz =
0.3 mR2. (Answer -48)