A car accelatate from rest with me because 2m^s ob straight track and them it comes to rest applying it braked. The total distance trabelled by a car is 100m in 20s .find the maximum retardation.
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Answer:
S = 1/2a*t*t
100 = 1/2*a*20*20
100/200 = a
a = 1/2 = 0.5
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