Range Finder Rating Related Rates Problem For Calc?

Related rates problem for calc? - range finder rating

The hot air balloon rides and a level domain is followed by a search range of 500 meters from the starting point. The balloon rose at a rate of 15 meters per second.

A) How fast is the direct distance between the rangefinder and the ball change in 5 seconds

B) velocity change of elevation angle when the balloon is 500 meters high


He gave us a chart trianle hypotenuse of a right side up, with the D and H and the bottom labeled equivalent to 500