1. A 55 kg airplane pilot pulls out of a dive by following, at constant speed, the arc of a circle whose radius is 320 m. At the bottom of the circle, where her speed is 230 km/h, what is the magnitude of her acceleration? 2. Relevant equations v^2= vi^2 +2a(x-xi) 3. The attempt at a solution i suppose that the plane has a height of the radius and the initial velocity would be 0. Am I wrong? if I am, please tell me!