Pendulum question

Thomas Nguyen

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I can't find the formula to represent the relationship between l and P in question b/,
 

Harry_the_cat

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Have you plotted the points? Desmos is a graphing program you can download. Or you could use a graphics calculator. Or you could use Excel.
 

Subhotosh Khan

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Thomas Nguyen

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Have you plotted the points? Desmos is a graphing program you can download. Or you could use a graphics calculator. Or you could use Excel.
I've tried it as well, got all the points. i tried y=0.2√x an it kinda fits into the points
 

Thomas Nguyen

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You are being asked to derive that formula by investigating the plotted graph from the given set of data.
like coming up with a formula? i got y=0.2√x estimated?
 

Subhotosh Khan

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Thomas Nguyen

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Now put that (y=0.2 * √x) in terms of 'l' and 'P'
Can you have a look at c) ii) please. I know that the similarity is both are in the form of y=a√x . But I dont know how to put the words to describe the differences
image1 (1).jpeg
 

Subhotosh Khan

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Please state Galileo's equation (formula) for simple pendulum.
 
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