I need help with a physics problem ASAP please :) I am currently in AP Physics and we are studying centripetal force. My teacher gave me a problem that is driving me crazy because I don't know where to begin with it, and I have a test tomorrow... Here's the problem: An airplane pulls out of a dive in a vertical circle of radius 1.0 km traveling with a speed of 550km/h. How many times greater is the apparent weight of the pilot than his true weight? Can someone please help me?