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Well I don't have a calculator atm, but you're on the right track
Once you have the time needed to fall, you'll know the time it took to travel horizontally. Then just divide the horizontal distance by your time there, and you should get the initial velocity
Once I figure out how to convert from your inanely annoying units (
) I'll post up a worked solution
 

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Quote:

Originally Posted by SirLagALot View Post
Well I don't have a calculator atm, but you're on the right track
Once you have the time needed to fall, you'll know the time it took to travel horizontally. Then just divide the horizontal distance by your time there, and you should get the initial velocity
Once I figure out how to convert from your inanely annoying units (
) I'll post up a worked solution
looks like all you need is to change accel... which is 32.2 ft/s^2
 

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d=(Vi)(t) + (1/2)(a)(t^2) = (1/2)(a)(t^2) from rest.
d / (1/2)(a) = (t^2)
5 / (1/2)(32.2) = (t^2)
t = 0.249 seconds

d = (Vi)(t)
Vi = d / t
Vi = 1164.659 feet per second.

You're on your own for significant figures, though.
 
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