A 14.5-m uniform ladder weighing 485 N rests against a frictionless wall. The ladder makes a 55.0\ deg angle with the horizontal. (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 815 - N firefighter has climbed 4.24 m along the ladder from the bottom. (b) If the ladder is just on the verge of slipping when the firefighter is 8.85 m from the bottom, what is the coefficient of static friction between ladder and ground?

A 14.5-m uniform ladder weighing 485 N rests against a frictionless wall. The ladder makes a 55.0\ deg angle with the horizontal. (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 815 - N firefighter has climbed 4.24 m along the ladder from the bottom. (b) If the ladder is just on the verge of slipping when the firefighter is 8.85 m from the bottom, what is the coefficient of static friction between ladder and ground?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 12.8CYU: Check Your Understanding A 400.0-N sign hangs from the end of a uniform strut. The strut is 4.0 m...

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