A $150-1l$ block rests on a rough plane inclined $50$ with the horizontal. If the coefficients of friction between the block and the plane are $0\mathrm{.}78$ for static and $0\mathrm{.}42$ for kinetic respectively, determine whether or not the block is at rest. $(15$ pt $)$

Draw Free body diagram $(10$ pt$)$

Use Equilibrium law with the Frictional force to find the coefficient of friction $(15$ pt $)$

Determine the block is at rest or not $(5$ pt$)$