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Seven seconds after a brilliant flash of lightning, thundershakes the house. How far was the lightning strike from thehouse?

a. much closer than 1 kilometer
b. about 1 kilometer away
c. about 2 kilometers away
d. much farther than 2 kilometers

Respuesta :

AL2006

Seven seconds after a brilliant flash of lightning, thunder shakes the house.

The lightning strike was about 2 kilometers away. (c)

The speed of sound is roughly 340 m/s. So in 7 seconds, the sound of the thunder would have traveled roughly 2,380 meters from the location of the strike.  But in the tangled mess of warm air, cold air, and rain surrounding a thunderstorm, the sound doesn't travel a straight line, so the actual location of the lightning was a little closer to the house than the total distance that the sound traveled.  "About 2 kilometers" is a reasonable estimate.

The lightning strike about 2 kilometers away from the house

What is Speed?

  • Speed is distance travelled by time.
  • So, Seed = Distance / Time
  • S = D / T

How to calculate the distance from where the lightning strikes?

  • The speed of sound is roughly around 340 m/s .
  • So from the formula ,

                    S = D/T

                    D = S X T

                    D = 340 X 7

                    D = 2380 m.

So, The sound of the thunder would have traveled roughly 2,380 meters which is about 2 kilometers away from the location of the strike.

Thus, The lightning strike about 2 kilometers away from the house

Learn more about relation between Speed , Distance and Time here -

https://brainly.com/question/553636

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