5.1 Force acting on an object
Force is a push or a pull that acts on an object. In other words, a push or pull that one object exerts on another is force. For example, when you push a car, you apply force on the car. You pull a refrigerator door to open it, you exert force on the door.
Pulling a refrigerator door
Pushing against a wall
Anytime when two or more object interact, forces are the cause of the interaction. For example, when you push wall, it also push you back.
What is force?
Orange falls due to gravity of the earth
Why do oranges fall down from the tree?