What is the length of a pendulum that swings back and forth with a frequency of 2.5 Hz?

Question

mathslover · Answer

Use the formula : $\large{\boxed{\sf{T = 2\pi \sqrt{\cfrac{L}{g}}}}}$ 

T is the time period of the Pendulum
L is the Length of a pendulum
g is the acceleration due to gravity which can be taken as $\sf{9.8 ms^{-2}}$ 
$\pi$ is constant which is equal to 3.14 

*Time period is the reciprocal of Frequency.* 

$T = \cfrac{1}{\nu}$ 

You are given with Frequency ($\nu$) = 2.5 Hz 

Find T and then put the values in the first formula.

mathslover · Answer

Then you can find the Length of a pendulum !