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the physics kid

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Two cyclists are travelling at constant speeds around a 400 m track in opposite direction. The speed of Jeff is 1.5 times the
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when an object is in free fall the acceleration (on earth) is alway 9.8m/s^2 [down]
10 foot = 304.8 cm
Everything up is positive Everything Down is negaitive velocity initial = -15.0m/s distance final = 0m distance initial = ? time = 2s df=v * t+di 0 = -15 * (2)+di di = 30 m therefor the bridge is 30m ablive the water. Not sure if this is entirely correct.
thanks bobpursley the correct answer is 10m/s i just didn't know how they got it. I Presumed that they were talking about the entire 10 seconds.

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