None of these
When a force acts on a body and the body undergoes a displacement.
When a force acts on a body and the body undergoes no displacement.
When there is no force but the body undergoes a displacement.
Pascal Cubic Meter
All the above
Law of conservation of momentum
Law of closed Momentum
Law of Constance
Point of contraflexure
Point of reversal
Point of zero moment
The point where the bending moment changes sign is known as point of contraflexure. Point of contraflexure generally occurs in overhanging beams.