Question $2$

$\frac{0}{1}$ point

Determine the horizontal force $P$ required to cause motion to start up the plane if $W=74lb$ and the coefficient of friction is $0\mathrm{.}21.$ Angle $A=31\mathrm{.}6.$

Report answer in Ib$,3-5$ sig figs, no units.

$10\mathrm{.}4(\frac{?}{0\mathrm{.}1})$