1. The problem statement, all variables and given/known data Evaluate r(hat and overdot), θ(hat and overdot), φ(hat and overdot) in terms of (θ , Φ) and the time derivatives of the two remaining spherical polar coordinates. Your results should depend on the spherical polar unit vectors. 2. Relevant equations ∂/∂t= 3. The attempt at a solution I just need some help understanding what is being asked here. The professor is no help when it comes to asking him for help understanding what he wants. It sounds like he wants me to evaluate the time derivatives of the unit vectors in spherical polar coordinates in relation to the angles. I don't know what he means by the "other two" spherical polar coordinates. Any insight would be helpful! Thanks!