Instant centre of rotation

When you play with your toys, sometimes you make them move in circles or spin really fast. When things move in circles or spin, they have a special point in the middle where they seem to turn around. This special point is called the "instant centre of rotation".

Imagine you are spinning a top. The top has a pointy end that sticks into the ground, and when you spin it, it moves around that point. That point where the top moves around is the instant centre of rotation.

Instant centre of rotation is like the centre of a merry-go-round. When the merry-go-round starts spinning, there is a special point in the middle where everything seems to turn around. The instant centre of rotation is like that point in the middle, but for things that move in circles or spin in a different way.

So, the instant centre of rotation is the special point in the middle where things seem to turn around when they move in circles or spin.