Practice Three-force Members (2.2) - Static & Dynamic Force Analysis of Simple Mechanisms

Practice: Three-force members

Lesson 2.2Static & Dynamic Force Analysis of Simple Mechanisms

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8 questions

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6 sample questions

Question 1.
Define a three-force member.
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Focus on the number of forces and their action.
Question 2.
What two conditions must be met for a three-force member?
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Think about how forces interact in a flat space.
3Question 3.
What defines a three-force member?
- Two forces acting
- Three forces in the same plane
- Four forces acting at random angles
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Think of the member's stability.
4Question 4.
Is a three-force member in static equilibrium if forces act at non-concurrent angles?
- True
- False
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Review the definitions of force interaction.
Question 5.
A three-force member has forces of 30N, 40N at angles of 30 and 45 degrees, calculate the resultant force and determine static equilibrium.
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Resolve forces to their components.
Question 6.
Given a truss structure with a three-force member subject to unknown applied forces, write the equations necessary to solve for these forces.
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Consider the geometry of the structure.

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