A uniform ladder 18 ft long and weighing 120 Ibs rests against a smooth wall. The angle between the ladder and the ground is 70°. The coefficient of friction between the ground and the ladder is 0.25. How far up the ladder can a 180 lb man walk before the ladder slips?

A uniform ladder 18 ft long and weighing 120 Ibs rests against a smooth wall. The angle between the ladder and the ground is 70°. The coefficient of friction between the ground and the ladder is 0.25. How far up the ladder can a 180 lb man walk before the ladder slips?

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 38P: A uniform horizontal strut weighs 400.0 N. One end of the strut is attached to a hinged support the...

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Question

A uniform ladder 18 ft long and weighing
120 Ibs rests against a smooth wall. The
angle between the ladder and the ground
is 70°. The coefficient of friction between the
ground and the ladder is 0.25. How far up
the ladder can a 180 lb man walk before
the ladder slips?

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