Learning material says that the answer is Ff = 244.29 N, but it didn't show how to get that answer. Other answers found on this site say it's 1646.45 N. Which one is the wrong answer? How is it wrong? Please enlighten me. Thank you. Show your complete solutions including the free body diagram.A ladder 7.50 m long is leaning against a smooth (frictionless) wall at a point 7.0 m above the ground.The ladder weighs 200 N and an 800-N painter stands two-thirds of the way up the ladder. Whatfrictional force must act on the bottom of the ladder to prevent it from slipping for the painter to besafe?

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Learning material says that the answer is F_f = 244.29 N, but it didn't show how to get that answer. Other answers found on this site say it's 1646.45 N. Which one is the wrong answer? How is it wrong? Please enlighten me. Thank you.

Show your complete solutions including the free body diagram.
A ladder 7.50 m long is leaning against a smooth (frictionless) wall at a point 7.0 m above the ground.
The ladder weighs 200 N and an 800-N painter stands two-thirds of the way up the ladder. What
frictional force must act on the bottom of the ladder to prevent it from slipping for the painter to be
safe?

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