Question

Do you know how can we hear the sound produced by a body

Answer 1

if the body starts vibrating in to and fro motion than we can hear a sound.
Hope it's help you

Answer 2

Sound is produced when something vibrates. The vibrating body causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.