In which of the following situation will the bullet of the pistol penetrate deeper in the wall? Why? Alternatively will the penetration in both cases be the same? Can you explain the concepts behind this?

Question

anonymous · Answer

The image is here !

anonymous · Answer

i dont see why it wouldnt be the bottom one- the bullet has lost no kinetic energy to air resitance even though it is minimal- but there is the possibility that the air in the chamber is being compressed by the bullet?