Question

b) Ali dropped a metal vase and heard the echo 10 seconds later.
He was 50 meters away from a wall. This means that the sound travelled
100 meters in 10 seconds or 50 meters in 5 seconds.​

Answer 1

HERE IS YOUR ANSWER MATE ::::::::

Speed of sound = 10 m/s

Explanation:

Ali dropped a metal vase and heard the echo 10 seconds later.

He was 50 meters away from a wall. This means that the sound travelled

100 meters in 10 seconds or 50 meters in 5 seconds.Find speed of sound?

Sound traveled 100 m  in  10 sec

=> Sound traveled 100/10  in 1 sec

=> Sound traveled  10 m/s

Speed of sound = 10 m/s