Question
A one kg weight kept on the glass sheet does not break it, but a small piece of stone dropped from certain height over it breaks it. Why?
Solution
There is no momentum assosciated with 1 kg weight placed over glass sheet.
But, the falling stone possesses momentum and when strikes with the glass sheet, it transfers its momentum to the glass particles. Hence, the glass sheet breaks.
But, the falling stone possesses momentum and when strikes with the glass sheet, it transfers its momentum to the glass particles. Hence, the glass sheet breaks.
