1. The problem statement, all variables and given/known data You're tracking a plane from the ground. The plane is at a constant height h from the ground, at a distance r from you at the illustrated instant, and at an inclination theta. The plane's speed is constant at 1200km/hr. Find the rate at which your tracking dish must rotate if r=3km and theta=30degrees. Does the acceleration of gravity make any contribution to your answer? The attempt at a solution The correct answer is 0.05 rad/s. But this is what I got: Sorry for the gigantic image! Thanks.