You can call it s if you want to but m has been the standard - it stands for "modulus" and is commonly used to indicate slope
Because of the Slope-Intercept equation. The model of any line can be described by the formula y=mx+b. The m is a number that represents the slope of a line. Whoever discovered the equation chose m instead of s. Probably because s usually represents the summnation of a series of numbers, so the mathemetician chose m to prevent confusion.
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Simply put, a velocity time graph is velocity (m/s) in the Y coordinate and time (s) in the X and a position time graph is distance (m) in the Y coordinate and time (s) in the X if you where to find the slope of a tangent on a distance time graph, it would give you the velocity whereas the slope on a velocity time graph would give you the acceleration.
The average slope in that interval is('y'-value at 30 s) - ('y'-value at 10 s)/20 s
You can call it s if you want to but m has been the standard - it stands for "modulus" and is commonly used to indicate slope
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 5 words with the pattern M-M-S-S. That is, seven letter words with 1st letter M and 3rd letter M and 5th letter S and 7th letter S. In alphabetical order, they are: mimeses mimesis mimosas momisms momuses
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern S--M---M. That is, eight letter words with 1st letter S and 4th letter M and 8th letter M. In alphabetical order, they are: shamosim
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -S-MM-S. That is, seven letter words with 2nd letter S and 4th letter M and 5th letter M and 7th letter S. In alphabetical order, they are: tsimmes
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M-A--M-S. That is, eight letter words with 1st letter M and 3rd letter A and 6th letter M and 8th letter S. In alphabetical order, they are: mwalimus
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 4 words with the pattern M--S----M. That is, nine letter words with 1st letter M and 4th letter S and 9th letter M. In alphabetical order, they are: marsupium mausoleum menstruum midstream
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M-SSMA-. That is, seven letter words with 1st letter M and 3rd letter S and 4th letter S and 5th letter M and 6th letter A. In alphabetical order, they are: messman
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M---SMAS. That is, eight letter words with 1st letter M and 5th letter S and 6th letter M and 7th letter A and 8th letter S. In alphabetical order, they are: melismas
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ---M-AM-S. That is, nine letter words with 4th letter M and 6th letter A and 7th letter M and 9th letter S. In alphabetical order, they are: plumdamas
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M--S-AM-. That is, eight letter words with 1st letter M and 4th letter S and 6th letter A and 7th letter M. In alphabetical order, they are: misstamp
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M-MMA--S. That is, eight letter words with 1st letter M and 3rd letter M and 4th letter M and 5th letter A and 8th letter S. In alphabetical order, they are: mammatus
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern MES--M-S. That is, eight letter words with 1st letter M and 2nd letter E and 3rd letter S and 6th letter M and 8th letter S. In alphabetical order, they are: mesdames mestomes