Question

True or False
Vertical velocity changes as an object falls.]

Answer 1

true

Answer 2

gravity increases the "vertical" velocity of a falling object.

it has no effect on the horizontal component of the velocity

Answer 3

And you understand why it is true? Think of a person shooting an arrow at a target. The vertical velocity,in this case the initial velocity of an arrow being shot in a trajectory, is feeling the force of gravity pulling down in the y-direction. This is completely independent of the horizontal velocity because the velocity in the y-direction (vertical direction) is due to the force of gravity, which only works in the downwards y-direction (particularly on earth).