Answer to Question #15808 in Mechanics | Relativity for John
V = at ==> a = V/t
D = at²/2 = Vt/2 ==> t = 2D/V.
a = V/(2D/V) = v²/(2D) = (11.0[m/s])²/(2*10.9[m]) ≈ 5.55 m/s².
So, the average acceleration of this sprinter is about 5.55 m/s².
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