A bullet fired against a glass window pane makes a hole in it, and the glass pane is not cracked. But on the other hand, when a stone strikes the same glass pane, it gets smashed. Why is it so?

When a fired bullet comes in contact with the part of a glass pane, then immediately this part of the glass pane shares the large velocity of the fired bullet and makes a hole in it while the rest part remains the same due to the inertia of the rest.

And when a stone with slow-motion or low velocity comes in contact with a glass pane, then many of the parts of the glass pane gets enough time to share the velocity of the stone and it gets cracked.
 

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Updated on: 10-Oct-2022

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