Question

The speed of sound is 310 ms¹. A person fires a gun. An echo is heard after 1.5 s. Calculate the distance of person from the cliff from which echo is heard.



237.5 is not correct answer so don't dare to copy paste​

Answer 1

Answer:

25 meters away because she was the Ghost

Answer 2

Given That:-

• Speed of sound = 310ms¹

• Time after which echo is heard t = 1.5s

To Find:-

• Distance from cliff (d) = ? 

Solution:-

Method 1:-

2d = Speed × time

2d = 310 × 1.5

2d = 465

d = 465/2

d = 232.5

Method 2:-

2d = 310 × 1.5

d = 310 × 1.5 / 2

d = 155 × 1.5

d = 232.5

Therefore:-

The distance of person from the cliff from which echo is heard is 232.5m