Question

A boy fires a gun and hears an echo 3 seconds later, if he
is 495 m away from a wall. Calculate the velocity of
sound. pls show workings​

Answer 1

Answer:

Answer:

The velocity of sound is 165 m/sec.

Explanation:

Given that:

A boy fires a gun and hears an echo 3 seconds later, if he is 495 m away from a wall.

To Find:

The velocity of sound.

We have:

Time = 3 seconds

Distance travelled = 495 m

Formula used:

Speed = Distance/Time

Finding the velocity of sound:

⟶ Velocity of sound = 495/3 m/sec

⟶ Velocity of sound = 165 m/sec

Answer 2

Step-by-step explanation:

d = 495

time = 3

$v = \frac{2d}{t} \\ = > \frac{2 \times 495 \: m}{3 \: sec} \\ = > \frac{990}{3} \\ = > {330ms}^{ - 1} \: ans.$