Question

A bullet makes a clear little hole in a glass, when it hits it, but if we throw a stone at the glass, the whole glass shatters. Why? Which law will you use to support your answer?

Answer 1

When the bullet strikes the glass, the part of the glass which comes in contact with the bullet immediately shares the large velocity of the bullet and makes a hole while the remaining part of the glass dut to inertia of rest, remains at rest and is therefore not smashed.

When a stone with low velocity strikes the glass, the surrounding part of the glass gets time to share the velocity of the stone. Thus the glass is smashed.

motion. When a bullet strikes a window pane,only the part of the window pane which is struck by the bullet comes in motion while the rest of window pane remains at rest due to very large momentum(p=mv).While in the case of the stone the monentum is less and the whole glass window comes in motion, thus smashing it.