1. The problem statement, all variables and given/known data Can someone explain what regenerative breaking is? 2. Relevant equations no equations required 3. The attempt at a solution I understand that this occurs with electric cars. It uses the idea that the electric motor and the electric generator are so similar. But how does the electric motor that is causing the wheels to turn, transform into an electric generator that produces energy to recharge the battery and start the electric car going again. I just need a clear explanation of what "regenerative breaking" is?