Answer to Question #187113 in Physics for Pete

Question

A ladder leans against a smooth wall, as shown in the figure below. Smooth wall means

that the wall that the wall exerts on the ladder only a force that is perpendicular to the wall

which does not have a friction force. The ladder weighs 200 N and its center of gravity is 0.40

L from the base, where L is the ladder’s length. (a) How large a friction force must exist at the

base of the ladder if it is not to slip? (b) What is the necessary coefficient of static friction?

Answer 1

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