Need help with physics homework

[Jules]

It's just one problem but I need you to show what equations/how you got the answer. I'll rep whoever answers it.

The fastest recorded pitch in Major League Baseball was thrown by Nolan Ryan in 1974. If this pitch were thrown horizontally, the ball would fall 0.809m by the time it reached home plate, 18.3m away. How fast was Ryan's pitch?

[Ghosts]

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Just googled the question and those popped up, idk if any of them have the equation, too lazy to read through.

[Jules]

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[Only registered and activated users can see links]

Just googled the question and those popped up, idk if any of them have the equation, too lazy to read through.

Thank you! (:

[shos]

If Nyone need help in physics pm me, I have a physics degrees and would love to help =)