I encountered a problem while solving a question about friction force regarding static bodies
The Question is as follows, "A body of weight (W) is placed on a rough plane inclined to the horizontal at an angle whose tangent is 7/24. It is tied to a rope and it is pulled by the rope upwards with a force of magnitude (3/5 W) to make the body about to move upwards the plane. If the rope lies in the vertical plane which passed through the line of the greatest slope and the measure of the angle between the rope and the line of the greatest slope is x where tan(x) = 3/4. Calculate the coefficient of static friction between the body and the plane, also find the measure of the angle of friction".
The Question is straightforward and understandable. However what I want to know is:
What does the statement "lies in the vertical plane which passed through the line of the greatest slope" mean or represent? And how to visualise this system in real life if possible?
Thanks in advance for your help.