A bicycle braking system shifts energy from a kinetic energy store into an internal energy store. A motor changes energy from a chemical energy store (battery) into a kinetic energy store. What makes these energy transfers possible?
- Abraking system: electrical work; motor: mechanical work
- Bbraking system: electrical work; motor: electrical work
- Cbraking system: mechanical work; motor: mechanical work
- Dbraking system: mechanical work; motor: electrical work