1. Speed of the moving object: The faster an object is moving, the stronger the Coriolis force acting on it.

2. Latitude: The Coriolis force is strongest at the poles and weakest at the equator. This is because the Earth's rotation is fastest at the equator, and slows down as you move towards the poles.

Therefore, the strongest Coriolis force is experienced by objects moving at high speeds at high latitudes (close to the poles).

Example: A jet flying at a high speed near the North Pole will experience a stronger Coriolis force than a car driving at a slower speed near the equator.

Important Note: The Coriolis force is a relatively weak force, and its effects are only noticeable over long distances and timescales.