You have a toy top that plays music if the rotational speed is at least \(1800 \mathrm{rev} / \mathrm{min}\). The way to get this top spinning is to pull on a string wrapped around a spindle of diameter of \(6.0 \mathrm{~mm}\). The top has a rotational inertia of about \(5.0 \times 10^{-3} \mathrm{~kg} \cdot \mathrm{m}^{2}\). The string is \(1.2 \mathrm{~m}\) long. To hear the top sing, how hard must you pull on the string?