# Category: pc9_sz_lawsofmotion

## Newton’s Third Laws of Motion For Class 9 Physics

Newton’s third law : ‘To every action there is an equal and opposite reaction.’ This law can be realised while dropping a ball, hammering a nail , holding a hose pipe of high pressurised water pump , during bicycling etc. Suppose a man pushes an object with a force F, then the object react to…

## Newton’s Second Law of Motion For Class 9

Newton’s Second law of motion: It states that rate of change of momentum is directly proportional to unbalance external force. And change of momentum is in the direction of unbalance force.Mathematical Derivation:

## Newton’s First Law of Motion Class 9 | Law of Inertia

Newton’s First Laws of Motion { Law of Inertia }- It states that a body continue in its state of rest or of uniform motion until it is comepelled by any external unbalance forces. This laws is also known as law of inertia. Inertia is the proerty of a body which cause it to maintain…