Question

A cyclist completed 8 revolution of a circular track of radius 98m with a uniform speed in 40 minutes calculate the speed

Answer 1

$\text{Average Speed}=\dfrac{\text{Distance covered}}{\text{Time taken}}\\ =\dfrac{8\times2\pi r}{t}\\ =\dfrac{8\times2\times\dfrac{22}{7}\times98}{40\times60}\\ =2.05 m/s$