- 04 Apr '10 23:17

Nevermind, 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*Originally posted by joe shmo***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. - 05 Apr '10 09:48 / 1 editI 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 13:20

Yeah, like just how big is a half radian?*Originally posted by iamatiger***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 17:10 / 1 edit

The radian is a unit of plane angle, equal to 180/pi degrees, or about 57.2958 degrees.*Originally posted by iamatiger***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 17:35

Yeah, 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.*Originally posted by AThousandYoung***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.