# physics

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how many RPM are required to attain 1g with a radius of 840 feet

• physics -

acceleration, a = rω² ft/s²
g=32.2 ft/s²
1 RPM = 2π rad/60 s

Let x=RPM required, then
You need
g=rω²=r(πx/30)²

Solve for x.

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