The arm in figure P8.7 weighs F = 41.5 N. The weight of the arm acts through point A as %3D shown. F, 12° F, 0.080 m -0.290 m P8.7 from Serway and Vuille 9th Ed. I60qsnoYEer gisB trom Newton's second Law for an object in to sequilibrium. You should A) Write down the two equations that come use the variables FrFel and F=1Fl in these equations.

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The arm in figure P8.7 weighs F = 41.5 N. The weight of the arm acts through point A as
shown.
F,
12°
下。
0.080 m
0.290 m
P8.7 from Serway and Vuille 9th Ed.
Write down the two equations that come from Newton's second Law for an object in
to sequilibrium. You should use the variables F Fl and F= F| in these equations.
Transcribed Image Text:The arm in figure P8.7 weighs F = 41.5 N. The weight of the arm acts through point A as shown. F, 12° 下。 0.080 m 0.290 m P8.7 from Serway and Vuille 9th Ed. Write down the two equations that come from Newton's second Law for an object in to sequilibrium. You should use the variables F Fl and F= F| in these equations.
B) Because this arm is in equilibrium, you can pick any axis of rotation you would like. On
the picture above identify an axis of rotation that reduces the number of unknown's in
the torque equation you will created for part C).
C) Write down the equation that results from the fact that the "Net external torque (for
the axis you chose in in part B) must be zero" on this arm.
Transcribed Image Text:B) Because this arm is in equilibrium, you can pick any axis of rotation you would like. On the picture above identify an axis of rotation that reduces the number of unknown's in the torque equation you will created for part C). C) Write down the equation that results from the fact that the "Net external torque (for the axis you chose in in part B) must be zero" on this arm.
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