text: Traveling at 31.25 m/s, the ball would reach 20 m in .64 seconds.\n\nAccording to Galileo's free-fall, objects have a 9.81 acceleration.\n\nSo, in .64 seconds, the ball would have fallen 2.00704 m.\n\nSubtract that from 5 m, you would get a number greater than 2 m, so I assume that if would clear the wall. I think.\n\n(To Above) Isn't time equal to distance divided by velocity? For example, it travels at 31.25 m/s, so it would travel 31.25 meter in one second. Doesn't that go to say that 20 meter would take less than a second?