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April 26th, 2018, 05:26 AM   #1
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Difference between Speed and Velocity

Thanks for the interest my videos have been receiving from the forum. If anyone is interested here is a video that explains the difference between speed and velocity. The two terms are often used interchangeably in everyday language even though they have very different meaning.
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April 26th, 2018, 08:52 AM   #2
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velocity
noun, plural velocities.
1. rapidity of motion or operation; swiftness; speed
2. the rate of speed with which something happens; rapidity of action or reaction.
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April 26th, 2018, 09:39 AM   #3
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$v$ is a vector

$speed = \|v\|$

done.
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April 26th, 2018, 12:22 PM   #4
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Math Focus: Wibbly wobbly timey-wimey stuff.
It doesn't help that many Physics teachers and textbooks get sloppy and do not use the terms properly. I have had to correct a number of problem statements and book references while I was teaching.

-Dan
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April 27th, 2018, 06:25 AM   #5
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The definitions from the dictionary don't seem to help at all, no wonder students are often confused.
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April 27th, 2018, 09:20 PM   #6
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Quote:
Originally Posted by rudimt View Post
The definitions from the dictionary don't seem to help at all, no wonder students are often confused.
Forget about dictionary. A coworker of mine got confused when she was about to put the definition of fractions in the glossary since the dictionary defines it as "numbers other than whole numbers", but both of us knew that irrational numbers are neither whole numbers nor fractions.
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April 28th, 2018, 01:36 PM   #7
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Quote:
Originally Posted by Monox D. I-Fly View Post
Forget about dictionary. A coworker of mine got confused when she was about to put the definition of fractions in the glossary since the dictionary defines it as "numbers other than whole numbers", but both of us knew that irrational numbers are neither whole numbers nor fractions.
Denis McField? I didn't know he worked at MacDonalds!

-Dan
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April 29th, 2018, 12:59 AM   #8
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I haven't been able to watch the vid since embedded video does not show on this site on my screen.

However if you are going to all the bother of making a video about the distinction then it must be worth discussing other associated terms.

Here are a few:

Celerity, swiftness, rapidity, fleetness, rate
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April 29th, 2018, 03:48 AM   #9
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Quote:
Originally Posted by studiot View Post
I haven't been able to watch the vid since embedded video does not show on this site on my screen.
I have same problem. But by "quoting" post, we get:
youtube]AoaqUqRSMxo[/youtube
which googles to:
https://www.google.ca/search?source=....0.C_gH30_PJmg

I also have similar problem viewing latex equations...
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Last edited by Denis; April 29th, 2018 at 03:52 AM.
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April 29th, 2018, 04:53 AM   #10
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Quote:
Originally Posted by Denis View Post
I have same problem. But by "quoting" post, we get:
youtube]AoaqUqRSMxo[/youtube
which googles to:
https://www.google.ca/search?source=....0.C_gH30_PJmg

I also have similar problem viewing latex equations...
Squiffing wheeze, Denis.

So since a fair exchange is no robbery, I find that I need to refresh the page to see the LaTex, or even leave the thread and return.
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