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| Math Central | Quandaries & Queries |
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Barb, a student: I looked at the questions concerning a pendulum as I know I need to use this formula but I am still not able to figure this problem out. Can you help? |
Hi Barb,
I assume that is a formula that is the imperial unit equivalent of
where T is period length in seconds, L is the length of the pendulum in metres and g is the acceleration due to gravity. This formula is much more common since it uses S.I. units (modern form of the mertric system) which are used by the scientific community.
Your formula has T, the period, which I assume is in seconds and L, the length, which I assume is in feet. You need to rearrange your expression to isolate T using basic algebra then plug in your value for length of the chain.
Hope this helps,
Janice
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