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13-07-2016
Mathematics

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A steel worker dropped his wrench off the top of a new high rise building. How far will the wrench fall in 3 seconds?

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olemakpadu olemakpadu

13-07-2016

Using S = ut + 1/2gt², from rest, u = 0

S = 1/2gt², g ≈ 9.8 m/s²

S = 1/2 *9.8*3²

S = 0.5 *9.8*3*3

S ≈ 44.1 m

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