1. The problem statement, all variables and given/known data An airplane descends in a circular pattern with a constant radius of 250 meters. The airplane has a horizontal speed of 75 m/s (constant) and a downward speed of 5 m/s, which is increasing at a rate of 2 m/s2 Determine the acceleration of the airplane. 2. Relevant equations an = v2 / ρ a = √(at2 + an2) 3. The attempt at a solution Finding the acceleration for a circular motion is easy, but I am having trouble including the downward acceleration. Any help is greatly appreciated!