Quote:
Originally Posted by LeRoySmith
I think this is the formula and result
d = 1/2 * 9.8 * (10 seconds)^2
d = 1/2 * 9.8 * 100
d = 490 meter
490 meters is 1607.61 feets
Its been a long time since I used that so I could be mis-recalling.
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Looks like your memory is good.
Now use S=4.9t2 put the time in this eqn and you will the depth s.
But of course, the rock was likely hitting lots of things on the way down, so...