An 90 person stands on a uniform ladder 4.0 long, that weighs 80 , as shown in t

Question

An 90 person stands on a uniform ladder 4.0 long, that weighs 80 , as shown in the figure(Figure 1) . 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. a) Using the dimensions given in the figure, find the forces exerted on the ladder when the person is halfway up the ladder. b) Find the forces exerted on the ladder when the person is three-fourths of the way up the ladder. http://session.masteringphysics.com/problemAsset/1125531/6/5416311022_99.jpg

Explanation / Answer

Hmm, if my guesses are correct then we have a 73 week old person standing on a ladder 4 loafs of bread long that weighs 80 ounces... Consider including all of the pertinent information if you would like help on a problem.

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