Question

A student standing in front of a huge building claps his hands. He heard its echo after 2 seconds. a) Calculate the distance between the student and the building. (Speed of sound in air is 340m/s)

Answer 1

Answer:

total distance travelled by the waves (sound) is 2x. Time taken is 2s. Speed of sound is 340 m/s.

The data we have is:

Distance : 2x meters

Speed:340 m/s.

Time: 2s.

Distance=Speed × time

2x=340×2

x=340m

Therefore, the distance is 340m.

Explanation:

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