Think of an example that you could use to convice a friend that an object at rest has an "internal hold back property" that is different from a frictional force or the force of the earth's gravity.

There are various examples around us that states " internal hold back property " and is different from frictional force or the force of Earth's gravity.

The plaster which is the mixture of cement and water has an adhesive nature and molecules inside them has a internal hold back property. They stick to the walls and ceiling and do not fall.

Though gravity is applied on it still its molecules tends to hold the ceiling firmly and do not fall upon.