Answer to Question #270206 in Physics for Mr. Lee

Question

The angle of elevation of a hot air balloon changes from 30

to 45 degrees in 2 mins. If the point of observation is 200m away from the take

off point. Determine the uniform rate of change of the angle of elevation in

rad/sec.

Answer 1

$$\omega=\frac{45-30}{2\pi(120)}=0.02\frac{rad}{s}$$