 So you can get examples any time you have any kind of force and indeed every time you have a force You can do an example of Newton's third law. Let's start with if you're lifting a book So if you lift a book, there's a force by you to push up the book and there's a force by the book pushing down on your hand It's a handbook interaction or you might have a plane if you have a plane's propeller There you have the plane pushing on the air the propeller pushes the air and also the air pushes the plane That's how the plane goes forward It's a propeller air interaction. You might have a swimmer in water The reason the swimmer pushes on the water is in order for the reaction the water pushing on the person to push them forward It's a person-water interaction or you might have a cricketer and if the cricketer hits a cricket ball Then the ball experience is a big force, but the bat experiences an equal and opposite force And that's why she has to hold it very firmly and also hit the ball right in the middle So that doesn't twist in her hands due to the bat ball interaction So in each of these cases all you have to do is figure out what two things are interacting and that tells you how to Apply Newton's third law and the force between the two things is going to be equal and opposite