If the length of the centrifuge arm is 12 m, what speed is the rider moving when she experiences 10 g's?

For this problem we are going to use:

a = v^2 / r

-or-

v = sqrt[ a*r ]

We know:

a = 98 m/s^2

r = 12 m

Plug these in and solve for v:

v = sqrt[ 98 * 12 ]

v = 34.29 m/s

So the driver is moving at 34.29 m/s when whe experiences 10g's