Why does the earth spin fastest at the equator?

Along the Equator – the imaginary line halfway between the North and South poles – Earth rotates at 1,037 mph (1,670 kph), a speed rivaling that of a fighter jet at full cruise. That’s where the Earth is widest along its axis, so any point along the Equator has a greater distance to travel during each daily rotation than any point closer to the poles. Still confused? Think of a merry-go-round. The horses on the outside have a greater distance to travel around the carousel – and thus move faster – than the horses on the inside.

The speed of the Earth’s rotation changes as you go North or South away from the equator. Finally, when you reach one of the Earth’s poles, you’re taking a whole day to just turn once in place – that’s not very fast.


Picture Credit : Google