Air Resistance (Drag Force) and Terminal Velocity

  • Thread starter Apothem
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  • #1
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Homework Statement



"How does air resistance affect terminal velocity"


Homework Equations



N/A

The Attempt at a Solution



I know most of the answer of this, however I am just wondering say take a parachutist for example, if the air resistance is the resultant force, then in order to reach terminal velocity the parachutist would have to decelerate until the air resistance=weight and hence terminal velocity is achieved, is this correct?
 

Answers and Replies

  • #2
rude man
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Homework Statement



"How does air resistance affect terminal velocity"


Homework Equations



N/A

The Attempt at a Solution



I know most of the answer of this, however I am just wondering say take a parachutist for example, if the air resistance is the resultant force, then in order to reach terminal velocity the parachutist would have to decelerate until the air resistance=weight and hence terminal velocity is achieved, is this correct?
Yes.
 
  • #3
72
0
Almost right, the air resistance isn't the resultant force. The resultant force is the air resistance + the weight. When the air resistance is equal to the weight, the resultant force is zero and so there is no acceleration.
 

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