Register to reply

Unit of mean square velocity

by HUMERA.S
Tags: square, unit, velocity
Share this thread:
HUMERA.S
#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 ?
Phys.Org News Partner Physics news on Phys.org
A new, tunable device for spintronics
Watching the structure of glass under pressure
New imaging technique shows how cocaine shuts down blood flow in mouse brains
rbj
#2
Feb13-13, 11:54 PM
P: 2,251
i think that it's m/s.
ehild
#3
Feb14-13, 01:09 AM
HW Helper
Thanks
P: 10,627
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
#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
#5
Feb15-13, 01:40 AM
HW Helper
Thanks
P: 10,627
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


Register to reply

Related Discussions
Why is the unit square a 2-manifold? Calculus 30
How do you parametrize the unit square in the complex plane? Calculus & Beyond Homework 5
Homeomorphism between unit square and unit disc Calculus & Beyond Homework 3
R^2 -> R^2 transformation of unit circle into square. Calculus 3
Covering a unit square General Math 2