Question

a plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. when the angle of elevation is ?y3, this angle is decreasing at a rate of ?y6 radymin. how fast is the plane traveling at that time?

Answer 1

To find the speed of the plane in a projectile motion problem, we need additional information such as the value of the angle of elevation.

Step-by-step explanation:

The plane's altitude of 5 km and the angle of elevation decreasing at a rate of ?y6 radymin indicate a projectile motion problem. To find the speed of the plane, we need to find the horizontal component of its velocity. Using the equation for projectile motion, we can determine the horizontal velocity based on the change in the angle of elevation:

Vx = uy * tan(?y) = (-5.42 m/s) * tan(?y)

Since we don't have the value of ?y, we cannot determine the speed of the plane at that time without additional information.