At the Same Moment from the Top of a Building

Multiple Choice

At the same moment from the top of a building 3.0 × 10² m tall,one rock is dropped and one is thrown downward with an initial velocity of .Both of them experience negligible air resistance.How much EARLIER does the thrown rock strike the ground?

A) 0.95 s
B) 0.86 s
C) 0.67 s
D) They land at exactly the same time.