A Ball Thrown Horizontally from a Point 24 M Above

Multiple Choice

A ball thrown horizontally from a point 24 m above the ground,strikes the ground after traveling horizontally a distance of 18 m.With what speed was it thrown,assuming negligible air effects?

A) 6.1 m/s
B) 7.4 m/s
C) 8.1 m/s
D) 8.9 m/s