Posted by **Leah- PLEASE HELP!!! :)** on Friday, October 29, 2010 at 9:01am.

the condition of apparent weightlessness for the passengers can be created for a brief instant when a plane flies over the top of a vertical circle. at a speed of 215 meters per second, what is the radius of the vertical circle that the pilot must use?

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**MathMate**, Friday, October 29, 2010 at 9:07am
Solve for r in mv²/r = mg

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**Leah- PLEASE HELP!!! :)**, Friday, October 29, 2010 at 9:13am
but what is m?

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**Maria**, Sunday, December 1, 2013 at 5:58pm
you wont need m, the m, in both sides of the equation cancel each other

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