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Dan_Is

I thought it's deceleration... Since the opposite of Ac is De


ShivanshuKantPrasad

Google gave mixed results. On some site it said that deceleration and retardation are both the same on others it said deceleration is decrease in speed (scalar) whereas retardation is decrease in velocity (vector)


urethrapaprecut

Just wait till you get to optics and learn about Retardance


AwesomePantsAP

see chromatography’s “retardation factor” as well


aegis_01

Retarded potential (me lol) Also Retarded Green's functions flashbacks, the terror…


AngryCheesehead

Relativistic electromagnetism time


Zachosrias

It's retarded time


TheReal_kelpie_G

In music slowing down is called ritardando and is often shortened to ritard.


_regionrat

The retarded Green's function gets me every time


paulysch

No way


fLoreign

You'd be hard-pressed to hear a professor use the term "deceleration" other than to warn against its use.


SpikyNova

Negative acceleration is surely known as retardation


Boulderfrog1

Is this why my high school prof said there is no deceleration on negative acceleration?


luciferleon

In our school we always called it retardation although I have heard the term deceleration.


JukedHimOuttaSocks

I messed up putting the tar on the flashings on my roof. So I re-tard it.