Question

a gun is fired in the air at a distance of 860 m from a person. he hears the sound of the bullet after 4 seconds. what is the speed of the sound?

Answer 1

Answer:

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Explanation:

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Answer 2

Given:

A gun is fired in the air at a distance of 860 m from a person.

He hears the sound of the bullet after 4 seconds.

To find:

The speed of the sound.

Solution:

Total distance traveled by the sound_

(860×2) m

= 1720 m.

Time taken by the sound = 4 seconds.

From the formula we get that,

$Speed = \dfrac{distance}{time}$

$=\dfrac{1720}{4}$

$= 430 m/s$

∴ The speed of the sound is 430 m/s.

Answer:

           The speed of the sound is 430 m/s.