b) Terminal velocity

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5 Terms

1
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  • state what all objects reach as they travel vertically through a fluid

  • terminal velocity

2
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  • define terminal velocity

  • the constant velocity an object falling through a fluid experiences when its drag and its weight become equal

3
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  • state the vector components of an object the instant it begins to fall vertically through a fluid

  • velocity (v) = 0

  • drag (D) = 0

  • acceleration (a) = acceleration of free fall (g)

  • resultant force (F) = weight (mg)

4
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  • state the vector components of an object falling vertically through a fluid before it reaches terminal velocity

  • velocity = increasing (at a slower rate)

  • drag (D) = increasing

  • acceleration (a) < acceleration of free fall (g) → decreasing

    • acceleration (ms^-2) = resultant force (F) / mass (kg)

  • resultant force (F) = weight (mg) - drag (D)

5
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  • state the vector components of an object falling vertically through a fluid once it reaches terminal velocity

  • velocity (v) = constant

  • drag (D) = weight (mg)

  • acceleration (a) = 0

  • resultant force (F) = 0