Question Detail
Question
The independence of horizontal and vertical motions in two-dimensional projectile motion means that
Correct Answer
Option B is the correct answer.
Detailed Explanation
Because the motions are independent, the time it takes for a projectile to fall vertically is determined solely by the vertical motion parameters (initial vertical velocity and vertical acceleration). This time dictates how long the projectile has to travel horizontally, as the horizontal motion continues uninterrupted until the projectile hits the ground.
Hint
Consider a ball dropped and a ball thrown horizontally from the same height. Which hits the ground first? This illustrates which component controls the time of flight.