$71$ point

A $0\mathrm{.}8-$m$-$diameter, $46-$kg flywheel with a radius of gyration of $\backslash (0\mathrm{.}4\backslash$mathrm$\{$~m$\}\backslash$left$(\backslash$mathrm$\{$I$\}=\backslash$mathrm$\{$K$\}^\{2\}\backslash$mathrm$\{$~m$\}\backslash$right$)\backslash ),$ about its center of mass, must be braked from $48$ rpm to rest in $3$ seconds. Calculate the tangential force $\backslash ($ F $\backslash )$ required to accomplish this braking action. $($Hint: you need to calculate the Torque first$)$

Provide your answer in Ib and round to one digit after the decimal point.