A $180$ kN horizontal force P is applied to a $140$

kN box resting on an $23$ incline. The line of

action of P passes through the center of gravity

of the box. The box is $4$m wide $2\mathrm{.}5$m tall, and

the coefficients of friction between the box and

the surface are s$=0\mathrm{.}3$ and k$=0\mathrm{.}27.$

$1)$ Determine the magnitude of the friction force acting on the box.

$2)$ The box is:

a$.$ In static equilibrium b$.$ sliding up c$.$ sliding down d$.$ Tipping