An athlete starting from rest picks up a velocity of 10 m/s over a distance of 100 m. Calculate (a) the we
acceleration generated by the athlete, and (b) the time in which he completes the race.
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Answer:
v = final velocity; u = initial velocity; a = acceleration ; s = distance
a) v^2-u^2 =2as
10^2-0^2=2*100*a
a = 100/200
=0.5m/s^2
b) v = u + at
10 = 0 + 0.5t
Therefore t = 10/0.5 = 20s
Explanation:
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