A straight ladder is leaning against the wall of a house.The ladder has rails 4.90 m
Chapter 10, Problem 22(choose chapter or problem)
A straight ladder is leaning against the wall of a house.The ladder has rails 4.90 m long, joined by rungs0.410 m long. Its bottom end is on solid but slopingground so that the top of the ladder is 0.690 m to theleft of where it should be, and the ladder is unsafe toclimb. You want to put a flat rock under one foot ofthe ladder to compensate for the slope of the ground.(a) What should be the thickness of the rock? (b) Doesusing ideas from this chapter make it easier to explainthe solution to part (a)? Explain your answer.
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