Question

A hot air balloon has just taken off. It rises to a height of 90 meters above the ground in 30 seconds. It is moving at a constant speed. How fast is the hot air balloon rising?​

Answer 1

Answer: 3 m/s

Explanation:

Given

the balloon rises up to a height of 90m in 30 sec

So, speed of balloon is
`v=\frac{\text{Distance}}{\text{time}}`

`v=(90)/(30)=3\ m/s`