* If you drop an object and throw an object horizontally at the same time, the one you dropped will hit the ground first. This is because the dropped object only experiences gravity, while the thrown object has an initial horizontal velocity. Gravity acts downwards, not sideways, so the horizontal motion doesn't affect how quickly it falls.

* However, if you throw the object *upwards* horizontally, it will take longer to hit the ground than an object dropped at the same time. This is because the thrown object initially moves upwards, counteracting gravity for a short time.

Let me know if you'd like a more detailed explanation or have other physics questions!