2.6.3
A horizontal force F2 = 10Н and a vertical force F1 act on a homogeneous roller weighing 2 kN. What should be the largest modulus of force F1 in order to start the rolling of the roller, if the rolling friction coefficient? = 0.005 m, radius R = 0.8 m, size OA = 0.4 m? (Answer 400)