- Joined
- 10 Dec 06
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- 8528
04 Apr 10
Originally posted by joe shmoNevermind, it was trying to tell me that I was using a mixture of SI and US customary values within the calculation, not that the units on the answer were wrong.......woops😳
Does anyone know the US customary units for angular momentum? An online assignment is being a real pain in my a$$.
Eric
Yet another reason for me to dislike online assignments.
- Joined
- 26 Apr 03
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05 Apr 10
1 edit
I usually consult Wikipedia for such information at work. Most of the mathematics and physics entries are very infirmative and reliable.
http://en.wikipedia.org/wiki/Angular_momentum
I try to stick with SI units everywhere, and certainly don't touch imperial units like feet, pounds and knots. Having said that though, I only really understand the size of angles in degrees, my head doesn't yet think in fractions of a radian sadly.
05 Apr 10
Originally posted by iamatigerYeah, like just how big is a half radian?🙂
I usually consult Wikipedia for such information at work. Most of the mathematics and physics entries are very infirmative and reliable.
http://en.wikipedia.org/wiki/Angular_momentum
I try to stick with SI units everywhere, and certainly don't touch imperial units like feet, pounds and knots. Having said that though, I only really understand the size of angles in degrees, my head doesn't yet think in fractions of a radian sadly.
05 Apr 10
1 edit
Originally posted by iamatigerThe radian is a unit of plane angle, equal to 180/pi degrees, or about 57.2958 degrees.
I usually consult Wikipedia for such information at work. Most of the mathematics and physics entries are very infirmative and reliable.
http://en.wikipedia.org/wiki/Angular_momentum
I try to stick with SI units everywhere, and certainly don't touch imperial units like feet, pounds and knots. Having said that though, I only really understand the size of angles in degrees, my head doesn't yet think in fractions of a radian sadly.
http://en.wikipedia.org/wiki/Radian
You can convert directly from radians to degrees and vice versa.
05 Apr 10
Originally posted by AThousandYoungYeah, if I have to estimate with radians, I usually just round pi to 3 for any in-my-head calculations and adjust it by about 5% later.
The radian is a unit of plane angle, equal to 180/pi degrees, or about 57.2958 degrees.
http://en.wikipedia.org/wiki/Radian
You can convert directly from radians to degrees and vice versa.
1 radian ~= 60 degrees is pretty good for estimation purposes. If you do the 5% adjustment, it brings you within 1% of the correct answer.