A jet pilot (80 kg) flies a loop-de-loop at a constant speed of 600 m/s.
a) What minimum radius can the loop have so that the centripetal acceleration is no more than 6ag?
b) Suppose that the pilot just happened to be sitting on a spring scale while flying the jet. What will the scale read (in Newtons) when he is b) at the bottom of the loop (and flying right-side-up), and c) at the top of the loop (and flying upside-down)?
Please help ASAP!!