Forces in Equilibrium

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Last updated 8:09 PM on 5/18/26
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6 Terms

1
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What is a scalar and vector quantity?

  • Scalar: A quantity with magnitude only and no direction

  • Vector: A quantity with both magnitude and direction

2
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What is a resultant vector?

A single vector with the same effect as two or more vectors combined

3
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What are the equation for resolving a vector?

  • Horizontal component = Fcosθ

  • Vertical component = Fsinθ

4
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What does equilibrium mean for a point object?

The resultant force is zero, so the object is at rest or moving at constant velocity

5
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What condition must 2 and 3 forces satisfy for equilibrium?

  • 2: Equal in magnitude and opposite in direction

  • 3: The resultant of any two forces must be equal in magnitude and opposite to the third force

6
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What does constant velocity tell you about resultant force?

The resultant force is zero