Задача id13263

A long homogeneous beam of mass M and length l is transported on two short sleighs (figure). What traction force must be applied to move this load evenly horizontally? The friction coefficient for the front sleds is k1, for the rear ones - k2. The traction force is horizontal and applied to the beam at a height h from the ground surface. Neglect the masses of the sled.

Answer. Format gif