Archive of posts on Nov 18, 2022

• Nov 18, 2022

  When a supersonic airplane flies over your head

  Suppose a supersonic airplane has Mach number $M$. It flies horizontally. At some time, it flies past over your head at height $h$. Then, the distance between you and it when you have just heard it is $Mh$.

  • Categories: physics
  • Tags: from zhihu