A ball thrown horizontally from an apartment balcony hits the ground in 5 seconds. If the horizontal velocity of the ball is doubled, how long will it take to hit the ground?

A.
2.5 seconds
B.
5.0 seconds
C.
7.5 seconds
D.
10 seconds
E.
12 seconds

flight time is independent of horizontal velocity

the ball will land farther away, but will "fall" for the same time