Attachment 728446
I don't get how to find the force? I know force as F = ma and I'm not seeing how to define the air's acceleration.
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Retsek
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- 02-03-2018 00:02
Last edited by Retsek; 02-03-2018 at 01:03. -
EmilySarah00
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- 02-03-2018 00:07
Hello! You don't seem to have included the question here.
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Retsek
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- 02-03-2018 00:11
(Original post by EmilySarah00)
Hello! You don't seem to have included the question here. -
Retsek
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- 02-03-2018 01:13
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Eimmanuel
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- 02-03-2018 08:50
(Original post by Retsek)
Attachment 728446
I don't get how to find the force? I know force as F = ma and I'm not seeing how to define the air's acceleration. -
Retsek
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- 02-03-2018 18:42
(Original post by Eimmanuel)
You need to use resultant force equals to the rate of change of momentum instead of F = ma.
The problem still stands I don't have a time frame? Or is it to do with the 12ms? Does the velocity go from 0ms to 12ms in one second because in the next second it moves on to the next 12m of air? and then the mass will be the 12m tall cylinder? -
Eimmanuel
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- 02-03-2018 18:45
(Original post by Retsek)
So the force = momentum / time
The problem still stands I don't have a time frame? Or is it to do with the 12ms? Does the velocity go from 0ms to 12ms in one second because in the next second it moves on to the next 12m of air? and then the mass will be the 12m tall cylinder? -
Retsek
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- 02-03-2018 18:47
(Original post by Eimmanuel)
The time is in part (i).
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