1. The problem statement, all variables and given/known data A man 6 feet tall walks as a rate of 5 feet per second away from a light that is 15 feet above the ground. When he is 10 feet from the base of the light, a) At what rate is the tip of his shadow moving? b) At what rate is the length of his shadow changing? 2. Relevant equations I know I have to use implicit differentiation 3. The attempt at a solution Honestly I have no clue how to set up the equation. I'm good at implicit derivatives but I'm not so good at word problems. Any help would be great!!