Energy and Dynamic Braking
Energy: you can’t destroy it, but you can certainly waste it. That’s what most motorized vehicles do, including trains. Usually, the energy generated when you stop a moving vehicle is dissipated as heat, and is lost to the atmosphere.
The energy dissipated in braking a 207-ton locomotive during the course of one year is enough to power over 8,900 average US households for a year.
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