Diagram should include two orthogonal lines, representing the wall and floor. Connecting them should be a diaganol line (the ladder)
At the midpoint of the line should be a vertical downward arrow whose head is closed. This should be labelled as either:a) weightb)5g Nc) 49 - 50 N
At the point where the line meets the wall, an arrow perpendicular to the wall should be present. It should be labelled "reaction" or something of the same meaning.
Where the line meets the floor should show two arrow. One vertical arrow (labelled reaction), and a horizontal arro (labelled friction).
Note: the direction of any of the reaction or friction arrows is of no consequence until the value of their forces are calculated.