For anyone confused, acceleration is defined as any change in velocity over time. Velocity takes into account both speed and direction. A change in velocity can be either be speeding up (gas pedal), slowing down (brake pedal), or changing direction (steering wheel). Hence, all three are a form of acceleration.
DarkerThanAzure t1_je1y5o7 wrote
For anyone confused, acceleration is defined as any change in velocity over time. Velocity takes into account both speed and direction. A change in velocity can be either be speeding up (gas pedal), slowing down (brake pedal), or changing direction (steering wheel). Hence, all three are a form of acceleration.