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[Poetry] Acceleration visualization (youtube.com)

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[–]SteampunkHedgehog -1ポイント0ポイント  (13子コメント)

Deceleration?

[–]quantum-quetzal 3ポイント4ポイント  (12子コメント)

There's no such thing as deceleration, just acceleration opposite to velocity!

[–]Dr_Avocado -5ポイント-4ポイント  (11子コメント)

Go open a dictionary, deceleration exists. I hate when people do this bullshit, just like cold "doesn't exist" yes it fucking does open a dictionary.

[–]NoDakSioux 2ポイント3ポイント  (9子コメント)

Yes it exists as a fucking word but not in science. Acceleration just means the rate of change (in either direction)

[–]Dr_Avocado -3ポイント-2ポイント  (8子コメント)

I know exactly what you are talking about but using that to make the statement "there's no such thing as deceleration" is disingenuous as well as blatantly and objectively false.

Try to define what you mean by "doesn't exist" if you aren't referring to it being a word so I can tell you why you're wrong. I bet you can't even do that though.

[–]NoDakSioux 1ポイント2ポイント  (7子コメント)

Read the first sentence

https://en.wikipedia.org/wiki/Acceleration

[–]Dr_Avocado -3ポイント-2ポイント  (6子コメント)

What? I didn't ask for the definition of acceleration. I asked for what you mean when you say deceleration doesn't exist. Because you said it doesn't refer to the word, what does it refer to then?

[–]wbad123 1ポイント2ポイント  (3子コメント)

Acceleration, as A PRINCIPLE, is based in physics. Socially, I supposed it has become acceptable to say an object is "decelerating", in reality however no such deceleration term exists in physics, a proper term would be "negative acceleration".

Because the acceleration is determined upon a vector, it's kind of like a redundancy to say "decelerate". It would basically be like calling backwards "unforwardness"

You both are correct to an extent.

[–]Dr_Avocado -1ポイント0ポイント  (2子コメント)

The decision of acceleration and force being in the same direction is completely arbitrary.

I can write F = -m*d

Where d = -a

is the deceleration

There's your physics definition of deceleration. It will predict motion just the same as F=ma

[–]NoDakSioux 0ポイント1ポイント  (1子コメント)

People who don't understand science use that word to describe acceleration in the opposite direction because they have learned to associate acceleration with speeding up

[–]Dr_Avocado 0ポイント1ポイント  (0子コメント)

They use it to describe acceleration in the opposite direction of the velocity because that's literally it's definition. They are correct.

Your statement is as stupid as saying "there is no such thing as sad, only negative happiness"