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October 9th, 2017, 04:04 AM   #1
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An acrobatic airplane performs a loop at an airshow. The centripetal acceleration the plane experiences is 14.7 m/s2.
If it takes the pilot 45.0 seconds to complete the loop, what is the radius of the loop?
Just waiting for answer as well

Last edited by greg1313; October 11th, 2017 at 11:59 AM.
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October 9th, 2017, 04:54 AM   #2
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Circular motion:

Centripetal acceleration:
$\displaystyle a = \frac{v^2}{r}$

$\displaystyle v = r \omega$

and

$\displaystyle \omega = \frac{2 \pi}{t}$

Therefore

$\displaystyle a = \frac{4 \pi^2 r}{t^2}$

Rearrange that equation for $\displaystyle r$ and solve.
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October 9th, 2017, 05:24 AM   #3
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October 9th, 2017, 06:38 AM   #4
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Just waiting for answer on Studydaddy as well
I'll let them do your homework for you then.
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October 9th, 2017, 07:03 AM   #5
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Just waiting for answer on Studydaddy as well
Also on Physicshelpforums

Guess what it said.
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