Mom, why do coconuts stay on the tree until they ripe or a strong wind blows them down?
The reason why this happens is because of Newton's first law: the law of inertia.
The Science Behind Everything
The law of inertia basically says that if nothing is happening to you, and nothing does happen, you won't go anywhere, and if you're going in a specific direction, unless something happens to you, you will always go in that direction.
What is the law of inertia?
Right now, nothing is happening to that coconut on the coconut tree, so it's not moving.
I don't understand, can you give me an example?
Okay, then what?
Now, if I were to hit that coconut with enough strength, it'll fall to the ground.
Now, it'll continue to roll in the same direction until something happens.
For example, if I stop it with my hand, it won't continue to move anymore. Do you get it?