Finding angular speed of a precessing gyroscope

AI Thread Summary
To find the angular speed of a precessing gyroscope, it's crucial to use consistent units throughout the calculation. The formula dL/dt = ΩpL requires Ωp to be expressed in rad/s or rad/min. Sticking with SI units during calculations and converting to rev/min at the end is recommended. A user confirmed that converting to rad/s first and then to rev/min resolved their issue. Proper unit tracking is essential for accurate results.
Fluxthroughme
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Haven't done much work with gyroscopes, so I think I'm just missing something obvious, but since I'm using very basic formulas, I cannot see my error. The stated answer is 1.8*10^3 rev/min, so I am clearly off.
 
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Keep track of all of your units in your calculation. Note that using dL/dt = ΩpL requires Ωp to be in rad/s or rad/min (depending on your unit of time). I would suggest sticking with SI units throughout the calculation and then converting to rev/min at the end.
 
TSny said:
Keep track of all of your units in your calculation. Note that using dL/dt = ΩpL requires Ωp to be in rad/s or rad/min (depending on your unit of time). I would suggest sticking with SI units throughout the calculation and then converting to rev/min at the end.

Ahh! Converting to rad/s first and converting to rev/min at the end does work. So it WAS something simple :P Thank you!
 
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