Answered: Imagine a meter stick set up as in the…

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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Question

Imagine a meter stick set up as in the figure (in the video above). It hangs from a central bracket, and two hanging masses can hang from it from each of their brackets. At a third location, a force probe can either pull up or pull down on the stick, depending on what is needed to balance the stick.

The mass of the meter stick is 120 g.

sketch the situation (drawing r1, r2, r3, F1, F2, and F3) and determine the magnitude (value) and direction (+ or -) of each torque. Remember that the x value given in the table is the position of the hanging mass, but that might be different from the r value you need to use. Don't include the mass of a bracket that would hold the hanging mass in place; assume the mass listed is the entire mass hanging at that point.

Trial
1
m₁ (g)
50
x₁ (cm)
20
m₂ (g)
100
x₂ (cm)
X3 (cm)
60
fulcrum location (cm)
50
Minimum
measured F3 (N)
1.32
Maximum
measured F3 (N)
1.55

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