- #1
**Mariam**
- 46
- 1
Homework Statement
Some tornado researchers see a faraway tornado moving straight toward them. They see a bolt of lightning from the cloud above the tornado and 20 seconds later hear thunder. Exactly 40 seconds after seeing the first lightning , they sees second bolt and hear the sound thunder 18 seconds later. If the speed of sound in air is 340 m/s. The average speed of the tornado is nearly:
17m/s
34 m/s
150 m/s
310 m/s
680m/s
Homework Equations
V=x/t
The Attempt at a Solution
We can say that the lightning and the tornado are moving together. So when lightning occur that's exactly where the storm is.
So in first part, sound takes 20 seconds to reach. For a distance of 340*20= 6800 m
Then there is a 20 second of no thunder or lightning.
(I don't know what to do from here)