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It takes 6 s for a stone to fall to the bottom of a mine shaft. How deep is the shaft?
Wiki User
∙ 11y ago
Ignoring air resistance, or bouncing off the sides of the shaft on the way down ...
-- Speed when you let it go = 0
-- Speed after 6 seconds = 6 G = 58.84 meters per second
-- Average speed = 1/2 (0 + 58.84) = 29.42 meters per second
-- In 6 seconds, at an average speed of 29.42 meters per second,
it fell 176.5 meters.
Wiki User
∙ 11y ago
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