College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Chapter 9, Problem 29PE
A device for exercising the upper leg muscle is shown in Figure 9.39, together with a schematic representation of an equivalent lever system. Calculate the force exerted by the upper leg muscle to lift the mass at a constant speed. Explicitly show how you follow the steps in the Problem-Solving Strategy for static equilibrium in Applications of Statistics, Including Problem-Solving Strategies
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I understand for static equilibrium all the forces should sum up to zero but I'm just not understanding how I should have found these answers.
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The figure above shows a uniform beam of length 2.42m and mass of 2.97kg that hangs horizontally and is attached to a vertical wall. A block of mass 2.97kg is suspended from the far end of the beam by a cable. A support cable has a tension of 102N runs from the wall to the outer edge of the beam and makes a 30 degree with the horizontal. Both cables are of negligible mass.
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Answer to 2 decimal places if possible
Chapter 9 Solutions
College Physics
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What is Torque? | Physics | Extraclass.com; Author: Extraclass Official;https://www.youtube.com/watch?v=zXxrAJld9mo;License: Standard YouTube License, CC-BY