What does wt stand for in oscillation equations

[nocturne-e]

What does "wt" stand for in oscillation equations

Hi,

In my physics class we are on the oscillation chapter. I'm kind of confused as to what "wt" in the position/velocity/accel. equations actually is. I understand that w=2pi/T and t is the time in an equation x=Acos(wt + delta) but when asked to find the max speed and accelerations after derving their formuls, the trig "disapprears" (assuming delta=o.)

What does "wt" stand for together and how does this change depending if the acceleration is max or the speed is max?

(I know this isn't a specific problem but it's a concept that I see on some of my HW probs.)

 

[rock.freak667]

'wt' is essentially angular displacement.

But when it comes to trig functions if y=Bsinx or Bcosx

the maximum value of both sine and cosine is 1, so that the maximum value of 'y' is B.

 

[nocturne-e]

OH! I see. Thanks a lot. :)