Practice1. An 80 kg person stands on a very light ladder that is 4.0 m long, as shown in the figure. Thefloor 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.Using the dimensions given in the figure, find the magnitude of f3.
Practice1. An 80 kg person stands on a very light ladder that is 4.0 m …
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