Question

defin stable and unstable equilibrium

Answer 1

stable equilibrium = a state of equilibrium of a body (such as a pendulum hanging directly downward from its point of support) such that when the body is slightly displaced it tends to return to its original position — compare unstable equilibrium.

unstable equilibrium =A body is said to be in unstable equilibrium when it does not regain its original position after being slightly disturbed by an external force. A bottle standing on the edge of its mouth, a cone resting on its apex, a book placed on its edge are examples of unstable equilibrium.