Question

A ball thrown horizontally at v₁ = 30.0 m/s travels a horizontal distance of d = 57.0 m before hitting the

ground. From what height h was the ball thrown?

Answer 1

17.7 m

Explanation:

57 m / 30 m/s = time in the air = 1.9 s

vertical drop for 1.9 s

vertical d = 1/2 a t^2 = 17. 7 m