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March 29, 2024, 06:11:23 pm

Author Topic: Difference between metres per seconds  (Read 1444 times)  Share 

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Dragomistress

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Difference between metres per seconds
« on: January 12, 2017, 04:12:04 pm »
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I am rather confused on the differences between:

m/s-2 and m/s2

and

m/s-1 and m/s

Thank you :D

RuiAce

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Re: Difference between metres per seconds
« Reply #1 on: January 12, 2017, 04:13:05 pm »
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I am rather confused on the differences between:

m/s-2 and m/s2

and

m/s-1 and m/s

Thank you :D

« Last Edit: January 12, 2017, 04:14:45 pm by RuiAce »

Dragomistress

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Re: Difference between metres per seconds
« Reply #2 on: January 12, 2017, 04:23:42 pm »
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So just to clarify, (if I preferred), I could just only use m/s^2 (for acceleration) and m/s (for speed) for the full scope?

RuiAce

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Re: Difference between metres per seconds
« Reply #3 on: January 12, 2017, 04:28:06 pm »
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So just to clarify, (if I preferred), I could just only use m/s^2 (for acceleration) and m/s (for speed) for the full scope?
m s-2 (as opposed to m/s-2) is preferred. But m/s2 is correct.

jamonwindeyer

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Re: Difference between metres per seconds
« Reply #4 on: January 12, 2017, 04:30:55 pm »
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Mathematically, \(ms^{-2}\) and \(\frac{m}{s^2}\), and even \(m/s^2\), are the exact same thing. You'd get marks for using any of the three; but as Rui said - The first is the most common :)

wyzard

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Re: Difference between metres per seconds
« Reply #5 on: January 12, 2017, 04:51:38 pm »
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I am rather confused on the differences between:

m/s-2 and m/s2

and

m/s-1 and m/s

Thank you :D

The trick behind understanding them is the physical units can be treated as an algebraic constant. Hence is exactly the same as .

The latter is preferred in more advanced physics as it makes the expression of more complicated units neater; like Newton's gravitational constant G with unit of which looks a lot tidier than
« Last Edit: January 12, 2017, 04:55:23 pm by wyzard »
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