Question

a cyclist goes once round a circular track of diameter 105m in 5min.calculate the speed

Answer 1

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Solut¡on:

Diameter=105

Circumference of circle=πd

now,

22/7×105=22×15=>330 m

speed=distance/Time

=330/5

=66metre/min
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‡‡Nishant Shandilya
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Answer 2

Speed=2πr/time
=2π×52.5/5×60
=2π×52.5/300
=1.05m/s