Draw the figure. You have the following equations that you can write:
a) Sum Vertical Forces=0
b) Sum horizontal forces=0. Remember that at the upper part of the ladder, there is a horizontal force (only).
c) Sum of moments about any point, I suggest the base of the ladder as that point. Remember that on moments it is the force x the distance to the Perpendicular to the force.
These equations will allow you to solve.
I will be happy to check your equations.
I just need help finishing this one off...again any help would be greatly appreciated:o)
An 85 kg person stands on a uniform ladder that is 4.3 m long and weighs 57.5 N. The floor is rough; hence it exerts both a normal force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force, f3. Use the dimensions in the figure to find the following. (a = 3.8 m.)
(a) Find the forces exerted on the ladder when the person is halfway up the ladder.
f 1 =
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