Equate the centripetal force to 6.8g, i.e.
mv²r = 6.8mg
solve for r.
Note that mass of aeroplane cancels out.
An airplane is flying in a horizontal circle at a speed of 117 m/s. The pilot does not
want his centrifugal acceleration to exceed 6.8g (that is, to be more than 6.8 times the
acceleration of gravity). What is the minimum radius (in meters) of the circular path?
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