Question

If you hear a firecracker 3 seconds after it is fired, how far away from it are you?

(assume the speed of sound in air to be 330 /)
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Answer 1

We know speed = distance/ time

so distance= speed × time

so distance = 330×3

=990

The distance is 990 m

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Answer 2

Answer:

990m approx.

Explanation:

Given: speed of sound, v = 330 m/s

time taken , t = 3 s

as we know,

v = d/t

=> d = 330 ms^-1 × 3 s (putting the given values

=990 m ( s and s inverse cancel out)