Solution of task 17.2.7 from the collection of Kepe OE

Solution of task 17.2.7 from the collection of Kepe OE

17.2.7
A thin uniform rod AB of mass m = 1 kg rotates with a constant angular velocity ω = 5 rad / s about an axis perpendicular to the rod. Determine the modulus of the principal vector of inertia forces of the rod, if the dimensions are l1 = 0.2 m, l2 = 0.4 m (Answer 2.5)