Teaching Physics with the Physics Suite

Edward F. Redish

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Climbing a ladder

A ladder is leaning against a wall as shown in the figure. If you were going to climb the ladder are you better off if there is no friction between the ladder and the wall or no friction between the ladder and the floor? Explain your answer in terms of the physics we have learned. Hint: Consider the conditions that must be met in order to keep the ladder from moving.

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Page last modified October 9, 2002: R02