Unformatted text preview: v y gives v y = , 2 t g t h +and substitution of numerical values gives t = 1.06 s and v y = –165 s m , with the minus sign indicating a downward initial velocity. b) c) If the skyscraper is so short that the student is already on the ground, then . m 123 2 1 2 = = gt h...
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 Velocity, Skyscraper, downward initial velocity.

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