User talk:Ibdutt

A query? When a bullet fired from a pistol hits a glass sheet it makes a neat hole and escapes but when the same bullet is projected by hand shatters the glass sheet causing more damage. The momentum of the bullet fired from weapon is much more than the one projected by hand. Will some body help? Thanks

Suggested answer:

When a bullet fired from a gun hits the glass the time of contact is very small as compared to when it is thrown at the glass. The momentum of the bullet from the gun is large but is not transferred to the glass completely due to very short time of contact. In case of bullet thrown, though the momentum is less but the time of contact is comparatively very large and results in transfer of more energy and that is the reason for the shattering of the glass.