I need help creating solvable application problem based requirements and based on the figure below (the figure changes based on what t equals. I have adjusted it a few times to show general movement). Problem Requirements:

1) You must specifically require that if this problem was given to a friend, they would be able to determine an equation relating the rates of change of the colored quantities. 2) Your problem should be stated in a physical context that does not refer to the geometry of the figure itself. 3) You should give enough information to make the problem solvable and should require your peers to use the values and rates of the other variables identified in the figure. 4) Neatly drawn figures and either typed-out equations or neatly written equations are expected.

Additional info: For this written prompt, we must select one of the two colored quantities and assign it an unknown rate of change (with respect to time) to be solved for at a specific moment in time. (EXAMPLE: We might be more specific such as follows: "A person is driving home from work. To get home, they drive South on 1st Street for 5 miles before turning east onto Maple Avenue. After driving down Maple Ave. for 4 minutes ( ?=4), their car's speed is .2 miles per minute. At this same moment in time (4 minutes after driving down Maple Ave.), at what rate is the car's distance from the person's work changing with respect to time?"

\f\f\f