Spider-man steps from the top of a tall building. He fallsfreely from rest to th

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Spider-man steps from the top of a tall building. He fallsfreely from rest to the ground a distance of h. He falls a distanceof h/4 in the last 1.0s of his fall. What is the height h of thebuilding? In the solution it says: h/4= v0t+1/2g(2t-1) I don't understand why its (2t-1), is this definatelycorrect? Spider-man steps from the top of a tall building. He fallsfreely from rest to the ground a distance of h. He falls a distanceof h/4 in the last 1.0s of his fall. What is the height h of thebuilding? In the solution it says: h/4= v0t+1/2g(2t-1) I don't understand why its (2t-1), is this definatelycorrect?

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