If T and m represent the maximum tension and mass per unit length of a belt, then the maximum permissible speed of the belt is given by
1
\(\sqrt {\frac{T}{{3m}}} \)
2
\(\sqrt {\frac{3T}{{m}}} \)
3
\(\sqrt {\frac{2T}{{3m}}} \)
4
\(\sqrt {\frac{T}{{m}}} \)