Step-by-step explanation:
Given parameters:
Distance = 180m
Time = 12s
Unknown:
Speed in m/s and km/hr
Solution:
Speed is the distance divided by the time taken,
Speed =
So;
Speed = = 15m/s
1000m = 1km
3600s = 1hr
Therefore;
15 x m x x x = 54km/hr
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