The Flip Flap Railway (seen below) was built in 1895 and was the first roller coaster to have a loop. It was “famous” for its extreme g-forces that it produced on its riders of approximately 12 gs. The circular nature of the coaster’s loop along with its small diameter of 25 feet caused riders to experience neck injuries from whiplash.
An 85,000 kg stunt plane performs a loop-the-loop, flying in a 260-m-diamter vertical circle. At the point where the plane is flying straight down, its speed is 55 m/s and it is speeding up at a rate of 12 m/s per second. (a) What is the m agnitude of the net force on the plane? You can neglect air resistance.