Question

Why does a bullet fired from a gun make a clean hole with minimum cracking/shattering in a glass window but a stone thrown at a similar window shatters the glass? For

Answer 1

When the bullet strikes the glass pane, the part of the glass pane which comes

in contact with the bullet immediately shares the large velocity of the bullet

and makes a hole. The remaining part of the glass remains at rest as there is

no time for the other parts to share the velocity and is

therefore not cracked, due to inertia of rest.

but when we throw a stone (velocity of stone is very less compared to a bullet )

so there is enough time to share the velocity to whole parts of the glass

thus shutters the glass