$17-103.$ The spool has a mass of $100kg$ and a radius of

gyration $k_G=0\mathrm{.}3m.$ If the coefficients of static and kinetic

friction at A are ${}_s=0\mathrm{.}2$ and ${}_k=0\mathrm{.}15,$ respectively,

determine the angular acceleration of the spool if

$P=600N.$