<p>I'm horrible at related rates and cannot figure out this problem. This is the first snag I've ran into in calculus and I'm reviewing for my midterm and I don't want to not understand this. I know it will be on there. Can anyone figure out this problem and explain it to me? If anyone can I would be more than appreciative.</p>
<p>At noon, a truck is 250 miles due east of a car. The truck is traveling west at a constant speed of 25 miles per hour, while the car is traveling north at 50 miles per hour. At what rate is the distance between them changing at 2:00 p.m.?</p>