Question

Which object is in static equilibrium?

a rolling ball that has a net force acting on it
a cruising car that has no net force acting on it
a book that has no net force acting on it and is sitting on a table
a vase that has a net force acting on it and is sitting on a shelf

Answer 1

A book that has no net force acting on it and is sitting on a table. It is not in movement and has no forces acting on it.

Answer 2

Answer:

a book that has no net force acting on it and is sitting on a table.

Explanation:

Static equilibrium :

When an object at rest and is in equilibrium state then it is called static equilibrium. its means no external force acts on the object.

Static means an object is at rest.

A book that has no net force acting on it and is sitting on a table.

So, it book is static equilibrium.

In the other given statements, the net force is present .

Hence, the correct option is C.