by the pythagorean theorem we know that
and we want to find when x=10.
using the above we know that when x=10.
taking the derivative with respect to time
An airplane is flying at an altitude of 6 miles and passes directly over a radar antenna. When the plane is 10 miles away, the radar detects that the distance s is changing at a rate of 240 miles per hour. What is the speed of the plane?
The teacher I have loves planes and assigned this problem and many others. I sloved most of them. Thanks for the time