An airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. if her speed is 200 m/s at the time, find the radius of the loop.
Centripetal acceleration is given by: g=v^2/r where: v=velocity r=rate But V=200 m/s, g=9.8 m/s^2 plugging the values in the formula we obtain: 9.8=200^2/r r=200^2/9.8 r=4081.63 m
