Question

Please help with this question

Answer 1

`T = 2\pi \sqrt{(L)/(32)}`

`(T)/(2\pi) = \sqrt{(L)/(32)}`

`L = (32 T^2)/(4\pi^2) = (8T^2)/(\pi^2)`

`L = (32 (2.2)^2)/(4(3.14)^2) =3.927 \textrm{ feet}`

Second choice: 4 feet