Answered: ft х Prob. 8–28

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter30: Atomic Physics

Section: Chapter Questions

Problem 41PE: Repeat Exercise 30.40 for l=3.

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Question

A worker walks up the sloped roof that is defined by the curve y = (5e^0.01x) ft, where x is in feet. Determine how high h he can go without slipping. The coefficient of static friction is μ_s = 0.6.

Expert Solution

Step 1

Given:

Step 2

The worker that walks up on the sloped roof based on the free body diagram is given below as,

The forces that is based on the horizontal direction is obtained by equating it to zero as given below as,

Step 3

The equation comes as,

The forces that act along the vertical direction is calculated as below,

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