Consider a 5.00m long ladder, with a mass of 25.0kg that can be approximated as uniformly distructed. The ladder is standing at an angle of 70 degrees to the horizontal, leaning against a wall. There is a person weighing 80.0kg that is standing 2.00m up along the ladder's length. If the force of the all is directly horizontal, calculate the force of friction between the ground and the ladder that's required to keep it from slipping(Hint: assume net torque about the ground is 0, and use that to calculate the force in magnitude) b) If the ladder was instead at an angle of 45 degrees to the horizontal, would the frictional force required be greater, equal or the same? Explain

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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Consider a 5.00m long ladder, with a mass of 25.0kg that can be approximated as uniformly distructed. The ladder is standing at an angle of 70 degrees to the horizontal, leaning against a wall. There is a person weighing 80.0kg that is standing 2.00m up along the ladder's length. If the force of the all is directly horizontal, calculate the force of friction between the ground and the ladder that's required to keep it from slipping(Hint: assume net torque about the ground is 0, and use that to calculate the force in magnitude) b) If the ladder was instead at an angle of 45 degrees to the horizontal, would the frictional force required be greater, equal or the same? Explain

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