Can you explain Newton's third law of motion?

Newton's third law states that for every action, there is an equal and opposite reaction.

This means that whenever an object exerts a force on another object, the second object will exert an equal and opposite force back on the first object. These forces always come in pairs, and they act on different objects.

For example, if you push a book across a table, the book exerts an equal and opposite force back on your hand. This is why you can feel the book pushing back on your hand as you push it.

Another example is a rocket launching into space. The rocket exerts a force downwards on the ground, and the ground exerts an equal and opposite force upwards on the rocket. This is what allows the rocket to lift off the ground and into space.

It's important to note that the forces in Newton's third law always act on different objects. So, if you push a wall, the wall doesn't push back on you with an equal and opposite force. This is because the forces are acting on different objects - you are pushing on the wall, and the wall is pushing back on the ground.

Understanding Newton's third law is important in many areas of physics, including mechanics, thermodynamics, and electromagnetism. It helps us to analyse the forces acting on objects and predict their motion.