I have i am told to put it in the form; where angular freq, w= 4 rads, and the period is = 1.57 secs how to you find the amplitude???
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Originally Posted by madmax29 I have i am told to put it in the form; where angular freq, w= 4 rads, and the period is = 1.57 secs how to you find the amplitude??? Trigonometry! Put then: etc.. CB
Originally Posted by CaptainBlack Trigonometry! Put then: etc.. CB Therefore; in degrees, then: Convert to radians; Now; ..... is this correct?, would y be the answer for the amplitude?
Last edited by madmax29; November 13th 2010 at 11:33 AM. Reason: changed degs to radians
Found this; where y from the question = Ao on the diagram above x-axis would be time (in secs)
Originally Posted by madmax29 Therefore; in degrees, then: Convert to radians; Now; I don't know what you think the rest means:- ..... is this correct?, would y be the answer for the amplitude? No the amplitude is CB
Originally Posted by CaptainBlack I don't know what you think the rest means:- No the amplitude is CB I accept that the amplitude is because in the form this in a sense is , where is the amplitude but what does "y" mean in the question, what i have evaluated to make 8.88?
Originally Posted by madmax29 I accept that the amplitude is because in the form this in a sense is , where is the amplitude but what does "y" mean in the question, what i have evaluated to make 8.88? You are confusing the variable which usually represents time with the constant which represents the period (which has the same units at ) CB
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