More about Inertia

People have argued that if the Earth were spinning on its axis, then people would all be moving at hundreds of miles an hour. So if you dropped a object straight down from the top of a tower, it would land backward of the initial dropping point instead of landing straight down. Basically, the previous idea was that if the Earth was moving, we would feel it. Just to prove this wrong, I likened the moving Earth, to a moving ship. According to the idea that if you dropped an object straight down it would go backwards, if I drop a ball from the top of the mast of a ship, it shouldn't land at the base of the mast. I dropped a ball from the top of the mast on a moving ship, and guess where the ball landed? That's right, at the base of the mast, as if the ship had not been moving at all.

Objects falling on Earth, move together with the Earth's rotation.