Question 1112563: Pam sees a hot-air balloon at an altitude of 520m with an angle of elevation of 42°24'. Four minutes later, it has drifted in a straight line towards Pam, at the same altitude, so that it then has an angle of elevation of 67°10'.
a) How far had it drifted?
b)At what speed was the hot-air balloon travelling?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Pam sees a hot-air balloon at an altitude of 520m with an angle of elevation of 42°24'. Four minutes later, it has drifted in a straight line towards Pam, at the same altitude, so that it then has an angle of elevation of 67°10'.
a) How far had it drifted?
---
It's a right triangle. The tangent of the angle = y/x = height/distance.
Find the 2 distances, subract.
==================
b)At what speed was the hot-air balloon travelling?
To find meters/minute, divide the meters by the minutes.
|
|
|
