Lecture 4 - Example Problems.pdf

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Department
Physics
Course
PHY254H1
Professor
Stephen Morris
Semester
Fall

Description
Example Problems Statics Recall that statics problems are those where an object is not moving because 0 and 0Classic Example Ladder Problem A ladder is leaning against a smooth ie frictionless wall At what anglewill the ladder slide down the wallSolution At the threshold forces forces These two equations do not contain enough information to calculateHowever we also know that 0 Since this is a statics problem 0 everywhere and we can choose any axis of rotation This solution will use the ladders contact point with floor This is a convenient point because 2 forces act at that point simplifying the equations
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