The discussion revolves around the behavior of projectiles in a gravitational field, specifically addressing the effects of initial horizontal velocity on the time it takes for projectiles to fall to the ground when air resistance is neglected. The scope includes conceptual clarification and technical explanation of projectile motion under ideal conditions.
Participants generally agree on the principle that horizontal motion does not affect the time of fall in a vacuum. However, the introduction of curvature effects indicates that there is some disagreement or uncertainty regarding the implications of this principle in practical scenarios.
The discussion does not resolve the implications of Earth's curvature on projectile motion, leaving this aspect open for further exploration.
This statement is equivalent to saying that neglecting air-resistance, everything accelerates towards the Earth at the same rate. So if you drop any number of objects from a given height, they will all hit the floor at the same time. In other-words, they will all spend the same amount of time in the air (flight time). Now, if you project an object horizontally it will have some horizontal velocity, but that doesn't matter since it is still accelerating towards the Earth at the same rate as if it was dropped. Therefore, the flight time will still be the same as if it were dropped.kylera said:Neglecting air resistance on Earth and regardless of how fast or slow a projectile's initial horizontal velocity is when fired from the same fixed height, they will all fall at the same time. Is this because regardless of the horizontal motions, the vertical motion is the same? Can someone clear this up in more layman-like terms? Much thanks in advance.