My Math Forum Difference between Speed and Velocity

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 April 26th, 2018, 05:26 AM #1 Member   Joined: Oct 2017 From: Japan Posts: 62 Thanks: 3 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.
 April 26th, 2018, 08:52 AM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,108 Thanks: 1001 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. Thanks from Joppy and rudimt
 April 26th, 2018, 09:39 AM #3 Senior Member     Joined: Sep 2015 From: USA Posts: 2,364 Thanks: 1270 $v$ is a vector $speed = \|v\|$ done. Thanks from Denis, topsquark, SDK and 1 others
 April 26th, 2018, 12:22 PM #4 Math Team     Joined: May 2013 From: The Astral plane Posts: 2,070 Thanks: 838 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 Thanks from rudimt
 April 27th, 2018, 06:25 AM #5 Member   Joined: Oct 2017 From: Japan Posts: 62 Thanks: 3 The definitions from the dictionary don't seem to help at all, no wonder students are often confused.
April 27th, 2018, 09:20 PM   #6
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Math Focus: Trigonometry
Quote:
 Originally Posted by rudimt 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.

April 28th, 2018, 01:36 PM   #7
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Math Focus: Wibbly wobbly timey-wimey stuff.
Quote:
 Originally Posted by Monox D. I-Fly 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

 April 29th, 2018, 12:59 AM #8 Senior Member   Joined: Jun 2015 From: England Posts: 891 Thanks: 269 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 Thanks from topsquark
April 29th, 2018, 03:48 AM   #9
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Quote:
 Originally Posted by studiot 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:

I also have similar problem viewing latex equations...

Last edited by Denis; April 29th, 2018 at 03:52 AM.

April 29th, 2018, 04:53 AM   #10
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Joined: Jun 2015
From: England

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Quote:
 Originally Posted by Denis 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.

 Tags difference, speed, velocity

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