How do you calculate terminal velocity ? Watch

Cinna21
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Hi I am asking this question twice because unfortunately I did not understand what the people who replied back on the original thread said so hopefully someone new could help me.

How do I calculate the terminal velocity of a sky divers if I know:

the mass of the skydiver
gravity of earth
drag coefficients
The resultant force

Please help me I am really stuck, thank you
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Joinedup
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(Original post by Cinna21)
Hi I am asking this question twice because unfortunately I did not understand what the people who replied back on the original thread said so hopefully someone new could help me.

How do I calculate the terminal velocity of a sky divers if I know:

the mass of the skydiver
gravity of earth
drag coefficients
The resultant force

Please help me I am really stuck, thank you
(as you probably know) Terminal velocity is the speed at which the resultant force is zero, i.e. drag is equal in magnitude to weight - because the body has stopped accelerating.

if this is a book question it seems odd that they'd give you drag coefficients in a question without any formula or rules of thumb that'd help you calculate a drag force.

if you've got 1 minutes data in a table maybe they expect you to extrapolate the velocity graphically rather than calculate it?
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Cinna21
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(Original post by Joinedup)
(as you probably know) Terminal velocity is the speed at which the resultant force is zero, i.e. drag is equal in magnitude to weight - because the body has stopped accelerating.

if this is a book question it seems odd that they'd give you drag coefficients in a question without any formula or rules of thumb that'd help you calculate a drag force.

if you've got 1 minutes data in a table maybe they expect you to extrapolate the velocity graphically rather than calculate it?
Yes its not a textbook question but I've solved it now and thank you for the help I didn't need to draw a graph but even if I did I would then have worked out the answers too so thank you
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hasan6091
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(Original post by Cinna21)
Yes its not a textbook question but I've solved it now and thank you for the help I didn't need to draw a graph but even if I did I would then have worked out the answers too so thank you
There is a equation for terminal velocity but im not sure if you need to know that much detail
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Cinna21
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(Original post by hasan6091)
There is a equation for terminal velocity but im not sure if you need to know that much detail
Nop I don't need to use that but thanks anyway
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