Answered: A uniform ladder 15 ft long is leaning.… | bartleby

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A uniform ladder 15 ft long is leaning.
against a frictionless wall at an angle
of 53 \deg above the horizontal. The
weight of the ladder is 30 pounds. A
70 lb boy climbs 5.0 - ft up the
-
ladder. What is the magnitude of the
friction force exerted on the ladder by
the floor?

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