- #1

Joe_mama69

- 4

- 1

- Homework Statement
- Just got done with my first week in phyiscs (mechanics) and I'm pretty confused on to find the standard angle, We are currently learning vectors, and for example we had a problem were we had to calculate R from A and B, A was like 30 degrees in the first qaudrant and B was 36 degrees in the 3rd qaudrant, and he wanted us to use the standard angles when we calcualted the compnents, and somehow he got 60 degrees as the standard angle for A and 216 for B. I understand that he added 180 to 36 to get 216 and subtracted 30 from 90 to get 60, but in another example, A was 35 degrees in the fourth quadrant, and B was 10 degrees in the third quadrant, in which he got 325 as the standard angle of A and 190 for B again I understand that he 10 to 180 to get 190 for B and subtracted 35 from 360 for A, but overall I am confused on when to subtract or add and from which number to add or subtract from. But like in "normal math" the calculations are different like 30 degrees int eh frist quadrant would just be 30 degrees and 35 degrees in the fourth quadrant would be 395 degrees, so whats going on.

Sorry i couldn't figure out how to upload an image here, so heres an imgur link with the two examples i described, they are exactly what my professor wrote on the board, he uses the term standard angle even though I don't think thats a common term used in physics or even math as i couldnt find anything on it.

https://imgur.com/a/7uScK3r

- Relevant Equations
- x component = magnitude * cos(standard angle)

y component = magnitude * sin(standard angle)

n/a