How do you calculate acceleration of gravity?

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How do you calculate acceleration of gravity?

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Answer 1 · 2014-12-16T02:54:44

You can use a pendulum to calculate the acceleration due to gravity, $g$ $"g"$ . The equations to use are the following:

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$T$ $"T"$ is period in seconds, $L$ $"L"$ is length of pendulum in meters, and $g$ $"g"$ is the acceleration due to gravity in ${m/s}^{2}$ $"m/s"^2$ .

Example:

A pendulum with a length of $1.15 m$ $"1.15 m"$ has a period of $2.151 s$ $"2.151 s"$ .

$g$ $"g"$ = ${4pi}^{2} {L/T}^{2}$ $"4pi"^2"L/T"^2$ = ${(4)(3.1415)}^{2} {(1.15 m)/(2.151 s)}^{2}$ $"(4)(3.1415)"^2"(1.15 m)/(2.151 s)"^2$ = ${9.81 m/s}^{2}$ $"9.81 m/s"^2$

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How do you calculate acceleration of gravity?

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