Which ratio defines the height of a watt governor to that of the porter governor for equal arm and link lengths, where m is the mass of the ball and M is the mass of the sleeve?
1
\(\frac{m}{{M + m}}\)
2
\(\frac{M}{{M + m}}\)
3
\(\frac{{M + m}}{m}\)
4
\(\frac{{M + m}}{M}\)