physics

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A ball bearing is dropped from rest at a point A. At the instant it passes a mark 4.5 m below A, another ball bearing is released from rest from a position 5.5 m below A.
1) At what time after its release will the second ball bearing be overtaken by the first?
2) How far does the second bearing fall in that time?

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    I will glad to help on any of your questions where work done by you is shown, but there do not appear to be any.

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