unit of mean square velocity


by HUMERA.S
Tags: square, unit, velocity
HUMERA.S
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#1
Feb13-13, 11:47 PM
P: 9
hi..........
we know the unit of velocity is m/s2
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 'm2/s4'
then how come its unit is also m/s2 and not m2/s4 ?
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rbj
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#2
Feb13-13, 11:54 PM
P: 2,265
i think that it's m/s.
ehild
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#3
Feb14-13, 01:09 AM
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Quote Quote by HUMERA.S View Post
hi..........
we know the unit of velocity is m/s2
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 'm2/s4'
then how come its unit is also m/s2 and not m2/s4 ?
The unit of velocity is m/s. m/s2 is for acceleration.
The unit of the mean of square velocity is m2/s2, but we ususally speak about root-mean-square (RMS) velocity or speed - and it is m/s.

ehild

HUMERA.S
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#4
Feb14-13, 08:37 PM
P: 9

unit of mean square velocity


Quote Quote by ehild View Post
The unit of velocity is m/s. m/s2 is for acceleration.
The unit of the mean of square velocity is m2/s2
OOOPS..!! yeah sorry i made a mistake . the unit for velocity is m/s..

but is the unit of mean square velocity really m2/s2 ????
(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 .)
ehild
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#5
Feb15-13, 01:40 AM
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P: 9,817
Mean square velocity is the average of the squared velocity. If it is square velocity , the unit is m2/s2. It can be a typo in your book, or they meant root-mean square velocity.

ehild


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