The distance from home plate to the pitchers mound is 18.5 meters. For a pitcher capable of throwing at 3.85m/s (86mi/hr), how much time elapses between the release of the ball and the ball passing home plate?

Given that:

Distance, s = 18.5 m

Velocity, v = 3.85 m/s

Time, t = ?

Since,

Velocity = distance/time

or

Time = distance/velocity

time = 18.5 / 3.85

time = 4.8 s

So the time elapse between the release of the ball and the ball passing home plate is 4.8 seconds.