How long did it fly?
went 31 m at 22.3 m/s
t = 31/22.3 = 1.39 seconds
h = (1/2) g t^2
= 4.9 (1.39)^2
= 9.47 meters
A ball thrown horizontally at 22.3 m/s from the roof of a building lands 31.0 m from the base of the building. How high is the building?
1 answer