Ajitha takes 19.8 seconds to complete one lapse running around a circular ground of diameter 14m. Find her speed?
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Answer: Ajitha's speed would be 2.22 m/s.
Step-by-step explanation:
Given that,
The diameter of the circular ground, d= 14 m
The radius of the circular ground, r= d/2= 14/2= 7 m
So,
The circumference of the circular ground= 2*pi*r= 2*22/7*7= 44 m
Time taken to complete one lapse= 19.8 s
Speed= circumference/time taken= 44/19.8
Speed= 19.22 m/s (approx)
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