Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 32P
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Question
A 240-kg uniform steel beam 7.75 m in length rests against a frictionless vertical wall, making an angle of 60.0° with the horizontal. A 72.0-kg construction worker begins walking up the beam. The coefficient of static friction between the beam and the ground is 0.750. What are the horizontal and vertical forces exerted on the beam by the ground when the worker has walked 3.00 m along the beam? (Enter the magnitude.)
fhorizontal=
fvertical=
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