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Third Equation of Motion

An athlete st...

Question

An athlete starting from rest picks up a velocity of 10 m/s over a distance of 100 m.Calculate the acceleration generated by the athlete and the time in which he completes the race?

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Solution

Dear student,
$u = 0, v = 10 m / s a n d s = 100 m v^{2} - u^{2} = 2 a S 100 = 2 a \times 100 a = 0.5 m / s^{2} v = u + a t t = v / a = 10 / 0.5 = 20 s$
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