A 160-m uniform ladder weighing 480 n rests against a, Ask an Expert

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A 16.0-m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes a 59.0° angle with the horizontal.

(a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 820-N firefighter has climbed 3.90 m along the ladder from the bottom.

Horizontal Force

magnitude

direction

(b) If the ladder is just on the verge of slipping when the firefighter is 9.20 m from the bottom, what is the coefficient of static friction between ladder and ground?

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Category:- Physics
Reference No.:- M91023491

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