Applied Sine & Cosine
An arctic village skiing trail has a radius of 2.5 miles. Ben starts skiing at the position (2.5, 0) on the coordinate axes (miles as the unit) and skis at a constant speed of 5 miles per hour. Alan stands at the (-2.5, 0) position and watches Ben ski. Define a function f that expresses the distance between Ben and Alan as a function of the number of minutes since Ben started skiing, t.