Question

why does a glass pane of a window gets shattered when a flying pebble hits it?

Answer 1

A glass pane of a window gets shattered when a flying pebble hits it, because the flying pebble is moving with some velocity while the glass pane is at the rest.

When it hits the glass pane , it imparts momentum to the pane.

Glass is amorphous solid and hence doesn’t have cleavage property.

Therefore, it gets shattered.

Answer 2

The reason is that the glass pane of the window is the hard solid. the flying people suffers change in momentum in a very short time to the force exerted by the glass window on the pebble will be large consequently the glass pane of the window will shutter