The spool of wire having a weight of 300 lb rests on The ground at B and against the wall...

The spool of wire having a weight of 300 lb rests on The ground at B and against the wall at A. Determine the normal force acting on the spool at A if P − 300 lb. The coefficient of static friction between the spool and the ground at B is µs = 0.35. The wall at A is smooth.