Physics
posted by Tsunayoshi .
A baseball is projected horizontally from the top of a building with an initial speed of 15 m/s. The ball strikes the ground 25 m from the base of the building.
a. How long will it be in the air?
b. How tall is the building?

L=v(x)t
t=L/v(x) =25/15=1.67 s
h=gt²/2=9.8•1.67²/2=13.6 m
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