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Unit of mean square velocity 
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#1
Feb1313, 11:47 PM

P: 9

hi..........
we know the unit of velocity is m/s^{2} and while calculating the mean square velocity we find the average(or mean) of the 'squares' of the given velocities. then the unit of MEAN SQUARE VELOCITY should be 'm^{2}/s^{4}' then how come its unit is also m/s^{2} and not m^{2}/s^{4} ? 


#2
Feb1313, 11:54 PM

P: 2,251

i think that it's m/s.



#3
Feb1413, 01:09 AM

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P: 10,627

The unit of the mean of square velocity is m^{2}/s^{2}, but we ususally speak about rootmeansquare (RMS) velocity or speed  and it is m/s. ehild 


#4
Feb1413, 08:37 PM

P: 9

Unit of mean square velocity
but is the unit of mean square velocity really m^{2}/s^{2} ???? (i mean, i just want to confirm. because in my book the unit of mean square velocity is given as m/s...... so the book must be wrong .) 


#5
Feb1513, 01:40 AM

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P: 10,627

Mean square velocity is the average of the squared velocity. If it is square velocity , the unit is m^{2}/s^{2}. It can be a typo in your book, or they meant rootmean square velocity.
ehild 


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