I did this experiment with various values for (d), which is the height from the top of the string to the stop. The length of the string was 0.7m. Since i used 6 differnt values for (d) i got 6 readings.(adsbygoogle = window.adsbygoogle || []).push({});

why i stated all this is because i have to find g from the following expression

[tex]T = \frac{-\pi^2}{g} (\frac{d}{T}) + 2\Pi \sqrt{\frac {l}{g}} [/tex]

I have tried lots of variations but i just can't find anything close to 9.8m/s^2.

what i did was i tried a single set of results like:

d = 0.5m

T = 1.31

thus d/T = 0.38

and l = 0.7m

could someone use the same and tell me what their result for g was, please.

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# Pendulum investigation with a stop

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