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Does everyone learn the same gravity in school or is it different everywhere? (self.askscience)

submitted 1 year ago by charred to c/[email protected]

72 comments fedilink hide all child comments

So, I learned in physics class at school in the UK that the value of acceleration due to gravity is a constant called g and that it was 9.81m/s^2. I knew that this value is not a true constant as it is affected by terrain and location. However I didn't know that it can be so significantly different as to be 9.776 m/s^2 in Kuala Lumpur for example. I'm wondering if a different value is told to children in school that is locally relevant for them? Or do we all use the value I learned?

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[–] [email protected] 18 points 1 year ago (2 children)

9.8 is close enough to 10 for most human scale calculations. No need to have extra sig figs

[–] [email protected] 16 points 1 year ago (2 children)

Pi = 3

Sin(x) = x

And now, g = 10. Smh.

[–] Tar_alcaran 19 points 1 year ago* (last edited 1 year ago)

I have a "pi^2 = g" shirt, and every engineer I know loves it, every friend with a scheme background needs to point out that it's wrong.

[–] [email protected] 6 points 1 year ago

I’ve seen engineers use all of these. Bridges still work

[–] [email protected] 4 points 1 year ago

Yeah air resistance is a stronger factor than those .2 m/s2. If we can ignore it we can ignore both