When you throw an object in either a northerly or southerly direction, when the object bounces off the Earth’s surface it will change path very slightly, rather than continuing in straight path. The direction of this path change will always be east. What is responsible for the path change described above?

the Earth’s rotation


When an object is bounced off the Earth’s surface, the rotational movement alters the object’s path in the direction of the Earth’s rotation (though the degree of the deflection is very slight).

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