The pilot of an airplane executes a loop-the-loop maneuver in avertical circle. The speed of the airplane is 250 mi/h, at the topof the loop and 450 mi/h at the bottom, and the radius of thecircle is 1 150 ft. Note: His apparent weight is equal tothe magnitude of the force exerted by the seat on his body.
(a) What is the pilot's apparent weight at the lowest point ifhis true weight is 160 lb?
lb
(b) What is the magnitude of his apparent weight at the highestpoint?
lb
(c) Describe how the pilot could experience weightlessness if boththe radius and the speed can be varied.
