Question

Rachel watches a thunderstorm from her window. She sees a flash of lightning bolt and begins counting the seconds until she hears the clap of thunder 5.0 seconds later. Assume speed of sound in air is 340.0 m/s and the light was seen instantaneously. How far away was the lightning bolt?

Answer 1

Explanation:

Let the distance be x mtrs

As the lightening is seen immediately and sound is heard after a gai of 5 secs, the distance is

$x = \: speed \: \times time \\ = 340 \times 5 \\ = 1700m$

Answer 2

Answer:

1700 metres

Explanation:

t = 5s

v = 340m/s

v = d/t

d = v * t

d = 340 * 5

d = 1700 metres

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