Question

a tumbler placed on a paper does not get disturbed when the paper is pulled out suddenly. explain why is it so?

Answer 1

A tumbler placed on a paper does not get disturbed when the paper is pulled because of the Newton's law of inertia.

It states that an object in rest, continues to be in rest unless an external force acts on it.

In this case, the paper exerts very minimal amount of friction force on the tumbler and that too for a very short amount of time. This Force is very small and is nullified by inertia.

Answer 2

When a paper is kept under a tumbler and the paper is then pulled out from the tumbler, Then the tumbler does not fall off.

This phenomenon is similar to the idea of a tablecloth and items on it.

Newton's law of motion comes into effect for the explanation of this phenomenon.