Calculating Alpha: Intercept & K

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To calculate alpha using the intercept and k, the formula T = 2π(m + (alpha)mspring)/k must be applied correctly. The user found an intercept of 0.228 and k as 5 kg/s², but is uncertain about the relevance of the intercept in the calculation. Clarification is needed on how to incorporate the intercept into the formula and the appropriate axes for graphing T²/g. Additionally, understanding which of Hooke's laws applies and defining alpha are crucial for resolving the confusion. Accurate application of these concepts will lead to the correct calculation of alpha.
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Homework Statement


calculate alpha using the intercept and the value of k.

Homework Equations


T= 2pi*(m+(alpha)mspring)/k)^1/2

The Attempt at a Solution


my intercept i found using EXCEL was .228 and k=5kg/s^2 which I'm pretty sure i did wrong. But i don't know how my intercept would have anything to do with this. and where to plug the intercept into. My slope turned out to be S^2/ g when i was asked to graph T^2/ g. A little help? thanks
 
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What are your x and y axes? Can you attach the graph? Which one of Hooke's laws is relevant? Define alpha.
 

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