## What the heck is measured in m2 / s2??

Can somebody tell me what m2 / s2 measures?? A square meter per squared second??
 Recognitions: Gold Member Science Advisor The rate of change in the growth of an area?
 energy per unit mass!

## What the heck is measured in m2 / s2??

what ever.
I ain't even important.
 Mentor Measured? Nothing. But I suspect the question is really asking about what an energy equation means.
 Recognitions: Homework Help My guess is that it's the velocity component for 1 Joule of energy, 1 Joule = 1 kg m2 / s 2, or kinetic energy of an object = 1/2 mass v2 (with v2 stated as m2 / s2 ). ... or it could be related to centripetal acceleration, a = v2 / r.

Recognitions:
Homework Help
 Quote by russ_watters Measured? Nothing. But I suspect the question is really asking about what an energy equation means.
Well, it could be a measure of energy per unit mass (above post #3): J/kg = Nm/kg = kg m sec^-2 m kg^-1 = m^2/sec^2

AM

 Quote by Andrew Mason Well, it could be a measure of energy per unit mass: J/kg = Nm/kg = kg m sec^-2 m kg^-1 = m^2/sec^2 AM
 Quote by dacruick energy per unit mass!
mwahahaha
 i'm sorry for necrobumping this old tread, but AM is actually right. Using bernoulli's equations you can find out the loss of energy due to friction in joule/kg, which is the same as m2/s2. A joule is the same as a newton times meter, while a newton is the force required to accelerate a mass of 1 kg by 1 meter per second squared. so if you write it out it becomes: $\frac{J}{kg}$ = $\frac{N*m}{kg}$ = $\frac{kg*m*m}{sē*kg}$ =$\frac{mē}{sē}$ so m2/s2 could refer to the loss of energy per kg due to friction. It's used mostly in hydrodynamics and aerodynamics. Probably also in thermodynamics.

Recognitions:
Homework Help
 Quote by johann1301 Can somebody tell me what m2 / s2 measures?? A square meter per squared second?
 Quote by dacruick energy per unit mass
Which would make m^2 / s^2 an optional unit form for potential, such as gravitational potential. For example, for object close enough to earth's surface that gravitational force can be considered constant, then gravitational potential = g h = (9.8 m / s^2) (h m) = 9.8 h m^2 / s^2.

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