Question

You are at a party and one of the guests performs a demonstration in which he pulls the tablecloth out from under a glass of water on a small table. The glass remains on the table and the water is not spilled. Explain how the glass remains on the table using Newton’s first law of motion

Answer 1

Newton's first law says that,

Tableware will remain motionless unless acted upon an extenal force.

While the table cloth is pulled slowly, the tableware try match its acceleration and moves.

But, when table cloth is pulled rapidly tableware remains at the state of rest.