34 Application of torque (a) Four forces are acting on an object that is free to rotate. The magnitudes are F₁ = 1 (N), F₂= 2 (N), F3 = 3 (N) and F₁ = 4 (N). The lever arms are r₁= 1 (m), r2 = 2 (m), 73=3 (m) and r₁= 4 (m). What is the total torque (with units!) on the object? Is it clockwise or counter-clockwise? F3 180 150

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter8: Rotational Equilibrium And Dynamics
Section: Chapter Questions
Problem 2P: A worker applies a torque to a nut with a wrench 0.500 m long. Because of the cramped space, she...
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34 Application of torque
(a) Four forces are acting on an object that is free to rotate. The magnitudes are F₁ = 1 (N),
F₂= 2 (N), F3 = 3 (N) and F₁ = 4 (N). The lever arms are r₁= 1 (m), r2 = 2 (m), 73 = 3
(m) and r₁= 4 (m). What is the total torque (with units!) on the object? Is it clockwise or
counter-clockwise?
90°
F4
F3
180 150
T4
F2
50%
Fi
(b) Use the concept of torque and lever arm to explain why the tree branches can support more
weight if elongated vertically.
Transcribed Image Text:34 Application of torque (a) Four forces are acting on an object that is free to rotate. The magnitudes are F₁ = 1 (N), F₂= 2 (N), F3 = 3 (N) and F₁ = 4 (N). The lever arms are r₁= 1 (m), r2 = 2 (m), 73 = 3 (m) and r₁= 4 (m). What is the total torque (with units!) on the object? Is it clockwise or counter-clockwise? 90° F4 F3 180 150 T4 F2 50% Fi (b) Use the concept of torque and lever arm to explain why the tree branches can support more weight if elongated vertically.
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