Расчет: CQUvu3 - 1

T =
2* π

* saknis(

l

/ g

)

T = 2* π

* saknis(

l

/ g

) $T$ = $2\cdot \pi\cdot \sqrt {\frac{l}{g}}$

2* π

* saknis(

l

/ g

) = T $2\cdot \pi\cdot \sqrt {\frac{l}{g}}$ = $T$

saknis(

l

/ g

) =

T

/ 2/ π

$\sqrt {\frac{l}{g}}$ = $\frac{T}{2\cdot \pi}$

g =

4* l* π

^²

/ T^²

$g$ = $\frac{4\cdot l\cdot \pi^{2}}{T^{2}}$