1. The problem statement, all variables and given/known data A plane, B, is approaching a runway along a straight line 15 degrees (angle phi) below horizontal, while the radar antenna, A, is monitoring the distance, r, between A and B, as well as the angle between A and b, theta. The plane has a constant approach speed v0. In addition, when theta=20 degrees, it is known that r(dot)=216 ft/s and theta(dot)=-0.022 rad/s. Determine the corresponding values of v0 and of the distance between the plane and the radar antenna. Phi=15 degrees Theta=20 degrees r(dot)=216 ft/s theta(dot)= -0.022 rad/s Since v is constant, a=0. 2. Relevant equations a=dv/dt v=ds/dt 3. The attempt at a solution I tried solving knowing that a=0. However, I do not know how to utilize the r(dot) and theta(dot).