Question 67191
{{{8T^2= pi^2L}}}
{{{T^2= pi^2L/8}}}
{{{T= sqrt(pi^2L/8)}}}
If L=10 then
{{{T= sqrt(pi^2L/8) = sqrt(pi^2*10/8)}}}
{{{T= sqrt(12.337)}}}
T=3.5 seconds