A railway flat car is laden with cargo, with a static friction coefficient of 0.25 between the cargo and the car floor. The train is moving at a speed of 30 km/h. What is the minimum distance the train must travel, from the moment braking begins until it comes to a complete stop, to ensure the cargo starts sliding?

which it departs from the sphere. 2. A railway flat car is laden with cargo, with a static friction coefficient of 0.25 between the cargo and the car floor. The train is moving at a speed of 30 km/h. What is the minimum distance the train must travel, from the moment braking begins until it comes to a complete stop, to ensure the cargo starts sliding? Y