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Prolapseinjudgement t1_itqufzb wrote

I think they mean deceleration, as in plane crash

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Brandon432 t1_itqvm67 wrote

Acceleration is a vector; it has both magnitude AND direction. Deceleration is just a type of acceleration.

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zaahc t1_itr6ajz wrote

I forget the setup, but there's a joke involving a physicist and how the gas pedal, brake pedal, and steering wheel are all accelerators.

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Brandon432 t1_itrcz94 wrote

I haven't heard the joke, but yes, that would generally be true.

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theorange1990 t1_itqz1s9 wrote

Acceleration can be used for both, it isn't dependent on direction.

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NetDork t1_itrd3qi wrote

Deceleration is acceleration in a negative direction.

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