Drag freight refers to a slow-moving train that carries heavy or bulky goods. These trains move at a slower speed because the load is large and requires more effort to pull. The weight of the cargo creates more resistance, which makes it harder for the train to travel quickly. As a result, drag freight trains are typically powered by stronger locomotives to handle the heavier loads and ensure the goods are transported safely, though they do not move as fast as lighter trains carrying less heavy cargo.

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