One person walked to 'B', a distance of 21m from 'A'. He then rounded the circle with 'A' as the focal point and returned again to 'A'. So how many total runs did I do?
1
Expert's answer
2019-08-13T11:19:34-0400
The total distance is the sum of three distances: from A to B, circular motion and from B to A:
"L=L_{AB}+L_{circ}+L_{BA}"
As the distance from A to B is 21 meter, the radius of the circle is also 21 meter.
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