Here's why:
* Gravity: The force of gravity pulls objects downwards at a constant acceleration, regardless of their horizontal motion. This means a ball dropped straight down and a ball thrown horizontally will fall at the same rate.
* Independent Motion: Horizontal and vertical motion are independent of each other. The ball's horizontal movement doesn't influence its vertical movement due to gravity.
Think of it this way:
Imagine you throw a ball straight up and another ball horizontally. Both balls will take the same amount of time to hit the ground (assuming they are thrown from the same height). This is because their vertical motion is governed by gravity alone.
Important Note: Air resistance can have a small effect, especially at high horizontal speeds. However, in most everyday scenarios, the effect of air resistance on the falling time is negligible.
